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hypercapnia&#44; reduced intrathoracic pressure&#44; and sympathetic and cortical central nervous system activation&#46; These intermediary mechanisms can potentially predispose to the development of cardiovascular and metabolic diseases and premature death&#46; Currently&#44; the diagnosis of clinically suspected OSA must be confirmed with sleep studies&#46; To date&#44; no clinically useful variables for cardiovascular risk specifically associated with OSA have been identified&#44; but such biomarkers would be of great benefit in assisting the physician&#39;s decision-making process&#59; for example&#44; when to perform a sleep study or whether to start treatment or monitor the patient instead&#46; Spanish guidelines on the management of OSA recommend a metabolic profile&#44; including complete blood count&#44; basic biochemistry parameters and a lipid profile in all patients undergoing a sleep study&#46;<a class="elsevierStyleCrossRef" href="#bib0125"><span class="elsevierStyleSup">1</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">One of the variables routinely analyzed in a complete blood count is red cell distribution width &#40;RDW&#41;&#46; RDW is a quantitative measure of the variability of red cell sizes&#46; It is obtained using a mathematical calculation &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#44; so the cost is negligible&#46; Its main application at present is for the differential diagnosis of anemia&#44;<a class="elsevierStyleCrossRef" href="#bib0140"><span class="elsevierStyleSup">4</span></a> and values are not affected by the patient&#39;s nutritional status&#44; sex or age&#46;<a class="elsevierStyleCrossRef" href="#bib0145"><span class="elsevierStyleSup">5</span></a> Recent studies show that increased RDW&#44; even with normal reference ranges&#44; is strongly associated with a greater risk of death and cardiovascular disease in middle-aged and elderly individuals&#46;<a class="elsevierStyleCrossRefs" href="#bib0150"><span class="elsevierStyleSup">6&#8211;15</span></a> RDW can act as a biomarker for cardiovascular risk that is sensitive to systemic inflammatory changes and to mobilization of iron deposits during oxidative stress&#46;<a class="elsevierStyleCrossRef" href="#bib0175"><span class="elsevierStyleSup">11</span></a> A relationship between RDW and OSA severity has been described in patients with and without associated cardiovascular disease&#44;<a class="elsevierStyleCrossRefs" href="#bib0200"><span class="elsevierStyleSup">16&#8211;18</span></a> and RDW has been reported to diminish with the use of continuous positive airway pressure &#40;CPAP&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0215"><span class="elsevierStyleSup">19</span></a> However&#44; these studies include limited numbers of patients&#44; follow-up is short&#44; and most include patients with comorbidities other than OSA&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0015" class="elsevierStylePara elsevierViewall">We postulated that RDW may be a biomarker that can identify the presence and severity of OSA in patients with suspected sleep-disordered breathing&#46;</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Methods</span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Study Subjects</span><p id="par0020" class="elsevierStylePara elsevierViewall">Data from a prospective study on epigenetic abnormalities in OSA currently under analysis &#40;EPIOSA&#44; ClinicalTrials&#46;gov&#58; <a href="ctgov:NCT02131610">NCT02131610</a>&#41; were used&#46; The study included patients aged 18&#8211;60 years referred to the Sleep-Disordered Breathing Unit &#40;SDBU&#41; of the Hospital Universitario Miguel Servet&#44; Zaragoza with suspected OSA between February 2013 and July 2014&#46; The general methodology and inclusion&#47;exclusion criteria of this study have been described elsewhere&#46;<a class="elsevierStyleCrossRef" href="#bib0220"><span class="elsevierStyleSup">20</span></a> In summary&#44; the following subjects were excluded&#58; active smokers or individuals with a smoking history of &#62;5 pack-years&#44; regular consumption of alcohol &#40;mean &#8805;20<span class="elsevierStyleHsp" style=""></span>g&#47;day&#41;&#44; and subjects with sleep disorders other than OSA or any comorbidity requiring the regular administration of any drug&#46; Patients with blood pressure &#8805;140&#47;90<span class="elsevierStyleHsp" style=""></span>mmHg&#44; blood glucose &#62;126<span class="elsevierStyleHsp" style=""></span>mg&#47;ml or body mass index &#40;BMI&#41; &#8805;35<span class="elsevierStyleHsp" style=""></span>kg&#47;m<span class="elsevierStyleSup">2</span> in the first visit were also excluded&#46; The study protocol was approved by the Ethics and Clinical Research Committee of Aragon &#40;03&#47;2013&#41;&#46;</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Procedures</span><p id="par0025" class="elsevierStylePara elsevierViewall">In the first visit&#44; all subjects underwent a standardized protocol of study tests as follows&#58; &#40;1&#41; clinical questionnaires &#40;general health&#44; nutrition&#44; quality of life&#44; daytime sleepiness&#44; comorbidities&#44; sleep hygiene&#41;&#59; &#40;2&#41; anthropometrics and general examination &#40;blood pressure&#44; weight&#44; height&#44; and neck&#44; waist and hip circumferences&#41;&#59; &#40;3&#41; cardiorespiratory polygraph at home&#59; &#40;4&#41; spirometry&#59; &#40;5&#41; ultrasonography of internal carotid arteries&#44; carotid sinus&#44; and common carotid artery&#59; &#40;6&#41; full blood analysis&#46; RDW was determined using a blood cell counter &#40;Coulter<span class="elsevierStyleSup">&#174;</span> LH 780&#41;&#46; Additional tests&#44; including complete blood count&#44; were repeated in all patients after 1 year&#44; irrespective of OSA diagnosis&#44; severity or treatment received&#46; Polygraphy was performed and analyzed according to SEPAR recommendations and the Spanish SAOS1 initiative&#46;<a class="elsevierStyleCrossRef" href="#bib0125"><span class="elsevierStyleSup">1</span></a></p><p id="par0030" class="elsevierStylePara elsevierViewall">The diagnosis of OSA and severity were established according to the number of apneas and hypopneas per hour of recording &#40;apnea&#47;hypopnea index &#91;AHI&#93;&#41;&#46; Subjects with an AHI&#60;5 were considered healthy&#46; After receiving a diagnosis of OSA&#44; patients were prescribed CPAP according to the routine recommendations&#46;<a class="elsevierStyleCrossRef" href="#bib0125"><span class="elsevierStyleSup">1</span></a> A patient was considered appropriately treated when CPAP was delivered for an average of more than 4<span class="elsevierStyleHsp" style=""></span>h&#47;day throughout the follow-up period&#46; CPAP use was evaluated in each visit by recording the readings on the CPAP unit counter&#46;</p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Statistical Analysis</span><p id="par0035" class="elsevierStylePara elsevierViewall">Categorical variables are shown as case numbers and percentages&#46; The Kolmogorov&#8211;Smirnov test was used to assess the distribution of the quantitative variables&#46; Variables with normal distribution are expressed as mean&#177;standard deviation and variables with non-normal distribution as median and interquartile range&#46; Comparison between groups was performed using the Student <span class="elsevierStyleItalic">t</span> test and ANOVA or the Mann&#8211;Whitney <span class="elsevierStyleItalic">U</span> test and Kruskal&#8211;Wallis test&#44; depending on the distribution of the variable&#46; Differences between variables with categorical data were established using the Chi-squared test&#46; The relationship between the individual RDW value and other variables of clinical interest was evaluated using adjusted linear regression models&#46; Statistical analyses were performed using version 20 of the SPSS statistical package &#40;IBM Corporation&#44; Somers NY&#44; USA&#41;&#46;</p></span></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Results</span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0095">Characteristics of Study Population</span><p id="par0040" class="elsevierStylePara elsevierViewall"><a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a> shows the study patient disposition&#46; A total of 172 individuals meeting the inclusion&#47;exclusion criteria were included in the final analysis&#46; <a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a> describes the population characteristics&#44; distributed by presence or absence of OSA&#46;</p><elsevierMultimedia ident="fig0010"></elsevierMultimedia><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0045" class="elsevierStylePara elsevierViewall">Ninety-two percent of the subjects were of Caucasian ethnic origin&#46; Controls with OSA were on average older &#40;40&#46;5 vs&#46; 45&#46;6 years <span class="elsevierStyleItalic">P</span>&#61;&#46;004&#41;&#44; with higher BMI &#40;26 vs&#46; 31&#44; <span class="elsevierStyleItalic">P</span>&#60;&#46;001&#41; and significantly higher levels of blood pressure&#44; cholesterol&#44; triglycerides&#44; blood glucose&#44; C-reactive protein &#40;CRP&#41; &#40;<span class="elsevierStyleItalic">P</span>&#60;&#46;05 for all differences&#41;&#46;</p></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0100">Red Cell Distribution Width</span><p id="par0050" class="elsevierStylePara elsevierViewall">Median RDW and interquartile range in the overall population at the beginning of the study were 13&#46;3 &#40;12&#46;3&#8211;14&#46;3&#41;&#58; in healthy subjects&#44; 13&#46;15 &#40;12&#46;07&#8211;14&#46;23&#41; and in OSA patients&#44; 13&#46;40 &#40;12&#46;40&#8211;14&#46;40&#41; &#40;<span class="elsevierStyleItalic">P</span>&#61;&#46;036&#41;&#46; The correlation between RDW and baseline characteristics of the study subjects is shown in <a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>&#46; RDW is significantly associated with the following&#58; BMI &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;190&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;014&#41;&#59; CRP &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;197&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;011&#41;&#59; time SaO<span class="elsevierStyleInf">2</span>&#60;90&#37; &#40;CT90&#41; &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;215&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;007&#41;&#59; and AHI &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;212&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;006&#41; &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>&#41;&#46; <a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a> also shows an adjusted multiple regression model in which the presence of age&#44; hemoglobin &#40;Hb&#41; and BMI are forced&#46; RDW maintained a positive independent relationship with AHI &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;223&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;002&#41; and with CT90 &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;232&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;002&#41;&#46; In these models&#44; BMI and CRP also persist as independent variables associated with RDW&#46; A secondary analysis was performed among OSA patients only to establish relationships between RDW and OSA severity&#46; After adjusting for the multiple regression model&#44; RDW remains significantly associated with CT90 &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;255&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;002&#41; and AHI &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;231&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;005&#41;&#46; In this analysis of OSA patients only&#44; BMI and CRP are not independently related with RDW&#46;</p><elsevierMultimedia ident="tbl0010"></elsevierMultimedia><elsevierMultimedia ident="fig0015"></elsevierMultimedia></span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0105">Follow-Up</span><p id="par0055" class="elsevierStylePara elsevierViewall"><a class="elsevierStyleCrossRef" href="#tbl0015">Table 3</a> shows the characteristics of the participants at the initial visit and after 1 year of follow-up&#46; Of the 34 healthy subjects&#44; 32 attended for re-evaluation&#46;</p><elsevierMultimedia ident="tbl0015"></elsevierMultimedia><p id="par0060" class="elsevierStylePara elsevierViewall">None of the OSA patients were lost-to-follow-up&#46; Of these&#44; 85 began CPAP treatment&#46; Seventy-one of these adhered appropriately to treatment and were included in the group &#8220;OSA treated with CPAP&#8221;&#46;</p><p id="par0065" class="elsevierStylePara elsevierViewall">Of the other 14 patients who began CPAP&#44; 4 subsequently rejected this treatment and the other 10 were withdrawn due to lack of compliance&#46; These 14 patients were included in the group &#8220;OSA not treated with CPAP&#8221;&#46; The remaining patients in this group did not receive CPAP as they did not meet the medical criteria &#40;<span class="elsevierStyleItalic">n</span>&#61;21&#41;&#44; or because they refused to use the system &#40;<span class="elsevierStyleItalic">n</span>&#61;9&#41;&#46;</p><p id="par0070" class="elsevierStylePara elsevierViewall">Not included in this table are data from 23 OSA patients who received alternative treatment to CPAP &#40;18 received different forms of upper airway surgery&#44; and 2 used mandibular advancement devices&#41; and 3 who refused a repeat CRP determination&#46; After 1 year&#44; no changes were observed in study variables&#44; including RDW&#44; in healthy subjects or in OSA patients not treated with CPAP&#46; In OSA patients treated with CPAP&#44; daytime sleepiness measured according to the Epworth questionnaire and diastolic pressure reduced significantly during the 1-year study period&#44; while RDW levels were not significantly affected&#46; A subanalysis grouping patients according to their OSA severity&#44; based on AHI &#40;i&#46;e&#46;&#44; 5&#8211;15&#44; 15&#8211;30&#44; or &#62;30&#41;&#44; did not reveal any RDW changes&#44; irrespective of whether they had received CPAP treatment or not&#46;</p></span></span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0110">Discussion</span><p id="par0075" class="elsevierStylePara elsevierViewall">The main finding of the study suggests that RDW is greater in patients with OSA than in healthy subjects&#44; and that it is independently associated with the level of OSA severity determined by AHI or by recorded time of hypoxemia&#46; However&#44; further studies are required to determine the potential utility of RDW as a biomarker capable of distinguishing between healthy subjects and those with OSA&#46; The other result of interest is that RDW levels are not modified with effective CPAP treatment&#46; RDW has recently been evaluated as a possible biomarker in various types of heart disease&#44; due to its positive relationship with cardiovascular death&#46;<a class="elsevierStyleCrossRefs" href="#bib0155"><span class="elsevierStyleSup">7&#8211;14</span></a> The few studies that have evaluated the relationship between RDW and OSA suggest that RDW levels rise in association with the degree of severity of OSA&#46;<a class="elsevierStyleCrossRefs" href="#bib0200"><span class="elsevierStyleSup">16&#8211;19</span></a> The hypothesis proposed to explain high RDW levels in OSA is the presence of systemic inflammation that mobilizes iron deposits&#44; and&#44; as a result&#44; may lead to increased RDW values&#46; The association between OSA and systemic inflammation continues to be a topic of debate&#46; Research primarily conducted in laboratory animals indicates that intermittent hypoxia plays a role in the development of accelerated atherosclerosis&#44; and one of the main intermediate mechanisms of this is systemic inflammation&#46;<a class="elsevierStyleCrossRef" href="#bib0225"><span class="elsevierStyleSup">21</span></a> Carotid ultrasonography has been used to show how CPAP reduces carotid intima-media thickness as an expression of improvement in subclinical atherosclerosis&#46;<a class="elsevierStyleCrossRef" href="#bib0230"><span class="elsevierStyleSup">22</span></a> However&#44; controlled studies have not shown any reduction in the level of systemic inflammation evaluated using various proinflammatory cytokines after 6 months of treatment with CPAP&#46;<a class="elsevierStyleCrossRef" href="#bib0235"><span class="elsevierStyleSup">23</span></a> Thus&#44; the role of inflammation as a factor explaining the consistent increase in cardiovascular morbidity and mortality in OSA patients is currently in question&#46;<a class="elsevierStyleCrossRef" href="#bib0130"><span class="elsevierStyleSup">2</span></a> Data from our study indicate that CRP levels are higher in OSA patients than in healthy individuals&#59; however&#44; effective CPAP treatment did not help reduce CRP or RDW levels&#46; This supports the findings of the randomized trial by Stradling et al&#46;&#44;<a class="elsevierStyleCrossRef" href="#bib0235"><span class="elsevierStyleSup">23</span></a> in which CPAP failed to reduce OSA-related systemic inflammation&#46;</p><p id="par0080" class="elsevierStylePara elsevierViewall">The finding of a positive correlation between RDW and CRP in the overall population and among OSA patients reinforces the idea that RDW may be a biomarker for systemic inflammation &#40;<a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>&#41;&#46; However&#44; no independent relationship between RDW and CRP was identified in OSA patients&#46; This suggests that these 2 biomarkers&#44; at least in OSA&#44; reflect different physiopathological processes&#46; After 1 year of CPAP treatment&#44; RDW remained unchanged in OSA patients&#44; so our results do not confirm previous results in which RDW was modified with the use of CPAP&#46;<a class="elsevierStyleCrossRef" href="#bib0215"><span class="elsevierStyleSup">19</span></a> In this study&#44; follow-up was only 6 months&#44; the population was smaller &#40;n&#61;58&#41;&#44; only patients with AHI&#62;30 were included&#44; and most patients had other comorbidities confounding the interpretation of results that RDW&#44; like other circulating biomarkers such as CRP&#44; do not change with CPAP&#46; Our results do not confirm the effect of CPAP on RDW levels&#46; However&#44; the study populations are different&#44; since our patients were selected with the aim of avoiding potential causes of systemic inflammation other than OSA&#44; thus avoiding bias in interpretation&#46; The lack of effect of CPAP on RDW did not indicate a lack of treatment efficacy&#46; On the contrary&#44; after 1 year of therapy&#44; OSA patients receiving CPAP showed statistically significant reductions in Epworth scale values and diastolic blood pressure figures&#44; findings similar to those repeatedly described in association with CPAP&#46;<a class="elsevierStyleCrossRef" href="#bib0240"><span class="elsevierStyleSup">24</span></a></p><p id="par0085" class="elsevierStylePara elsevierViewall">Some limitations must be taken into account when interpreting the results of this study&#44; mainly its observational nature and the lack of randomization to evaluate the effect of CPAP&#46; However&#44; the sample size was&#44; according to the literature&#44; sufficient to allow changes due to the CPAP intervention to be detected&#46; The groups of healthy subjects and OSA patients are not fully comparable&#44; since the healthy subjects were somewhat younger&#44; more of them were women&#44; and they presented a lower BMI&#44; lower blood pressure and lower blood lipid levels&#46;</p><p id="par0090" class="elsevierStylePara elsevierViewall">The inclusion&#47;exclusion criteria of our series are also very restrictive&#44; and the population was limited to subjects aged 18&#8211;60 years&#46; This prevents any generalization of results to the overall OSA population&#46;</p><p id="par0095" class="elsevierStylePara elsevierViewall">On the other hand&#44; as the screening of participants was restrictive&#44; selection bias was avoided &#40;subjects with chronic diseases associated with an increase in RDW were excluded&#41;&#44; so robust associations between RDW and OSA can be established&#46;</p></span><span id="sec0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0115">Conclusions</span><p id="par0100" class="elsevierStylePara elsevierViewall">RDW was higher among a population of OSA patients with no associated comorbidity than among healthy individuals without OSA&#46; The RDW level was independently associated with the severity of OSA in the absence of associated comorbidity&#46;</p><p id="par0105" class="elsevierStylePara elsevierViewall">However&#44; RDW was not modified by effective treatment of OSA with CPAP&#44; and this study brings into question the clinical utility of RDW in the management of patients with OSA&#46;</p></span><span id="sec0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0120">Funding</span><p id="par0110" class="elsevierStylePara elsevierViewall">EPIOSA is a research project funded by the Instituto de Salud Carlos III &#40;PI12&#47;01275&#41;&#44; the Spanish Society of Pulmonology and Thoracic Surgery &#40;SEPAR 71&#47;2012&#41;&#44; and the Aragon Respiratory Tract Society &#40;SADAR 02&#47;2013&#41;&#46;</p></span><span id="sec0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0125">Authorship</span><p id="par0115" class="elsevierStylePara elsevierViewall">Le&#243;n E&#46; had access to the data&#44; completed them and entered them in a database&#44; and subsequently performed the statistical analysis&#46; Le&#243;n E&#46; was the principal author&#46; Marin J&#46;M&#46; supervised and helped to complete the study&#46; G&#243;mara S&#46; contributed to data analysis and interpretation&#46; All participated in the preparation of the manuscript&#46;</p></span><span id="sec0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0130">Conflict of Interests</span><p id="par0120" class="elsevierStylePara elsevierViewall">The authors declare that they have no conflict of interests related with the topic of this manuscript&#46;</p></span></span>"
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        "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Introduction</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Red cell distribution width &#40;RDW&#41; describes heterogeneity in the size of red blood cells&#46; An increase in RDW has been associated with excess mortality in heart failure and other chronic diseases&#46; Since there is an increased risk of cardiovascular morbidity and mortality in obstructive sleep apnea &#40;OSA&#41;&#44; it is possible that these patients have a high RDW&#46;</p></span> <span id="abst0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Method</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">We recruited subjects aged 18&#8211;60 years referred to the sleep-disordered breathing unit for suspected OSA&#46; Subjects with any comorbidity were excluded&#46; Apnea-hypopnea index &#40;AHI&#41; was calculated from the respiratory polygraphy&#46; The RDW was obtained from the complete blood count&#46; Changes in RDW after one year of treatment with continuous positive airway pressure &#40;CPAP&#41; were determined&#46;</p></span> <span id="abst0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Results</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">We included 34 healthy subjects and 138 with OSA&#44; aged 40&#46;5&#177;9&#46;8 and 45&#46;6&#177;9&#46;2 &#40;<span class="elsevierStyleItalic">P</span>&#61;&#46;004&#41; years&#44; respectively&#46; The RDW was higher in subjects with OSA compared to healthy subjects&#58; 13&#46;40 &#40;12&#46;40&#8211;14&#46;40&#41; vs&#46; 13&#46;15 &#40;12&#46;07&#8211;14&#46;23&#41; &#40;<span class="elsevierStyleItalic">P</span>&#61;&#46;036&#41;&#46; AHI showed a positive independent relationship with RDW in both the whole population &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;223&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;002&#41; and the OSA group &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;231&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;005&#41;&#46; No significant changes were found in RDW after one year of CPAP therapy&#46;</p></span> <span id="abst0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Conclusions</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">RDW increase in patients with OSA is directly associated with severity&#44; although levels are not modified by the effective treatment of OSA with CPAP&#46;</p></span>"
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        "resumen" => "<span id="abst0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Introducci&#243;n</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">El ancho de distribuci&#243;n eritrocitaria &#40;ADE&#41; describe el grado de heterogeneidad en el tama&#241;o de los hemat&#237;es&#46; Un incremento de ADE se ha asociado con exceso de mortalidad en insuficiencia cardiaca y otras enfermedades cr&#243;nicas&#46; Dado que existe mayor riesgo de morbimortalidad cardiovascular en apnea obstructiva del sue&#241;o &#40;AOS&#41;&#44; es posible que estos pacientes presenten un ADE elevado&#46;</p></span> <span id="abst0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">M&#233;todo</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">Se reclutaron sujetos de 18 a 60 a&#241;os remitidos a la Unidad de Trastornos Respiratorios del Sue&#241;o &#40;UTRS&#41; por sospecha de AOS&#46; Se excluyeron sujetos con cualquier comorbilidad&#46; En la poligraf&#237;a respiratoria se determin&#243; el &#237;ndice de apnea-hipopnea &#40;IAH&#41;&#46; El ADE se obtuvo a partir del hemograma&#46; Al a&#241;o de seguimiento se determinaron los cambios de ADE tras tratamiento con presi&#243;n positiva continua en la v&#237;a respiratoria &#40;CPAP&#41;&#46;</p></span> <span id="abst0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Resultados</span><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Se incluyeron 34 sujetos sin AOS y 138 con AOS con una edad de 40&#44;5<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>9&#44;8 y 45&#44;6<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>9&#44;2 &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;004&#41; respectivamente&#46; El ADE fue mayor en sujetos con AOS que en sujetos sanos&#58; 13&#44;40 &#40;12&#44;40-14&#44;40&#41; vs 13&#44;15 &#40;12&#44;07-14&#44;23&#41; &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;036&#41;&#46; El IAH mostr&#243; una relaci&#243;n positiva e independiente con ADE tanto en el conjunto de la poblaci&#243;n &#40;r<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;223&#59; p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;002&#41; como en el grupo con AOS &#40;r<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;231&#59; p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;005&#41;&#46; No se observaron cambios significativos de ADE tras un a&#241;o de tratamiento con CPAP&#46;</p></span> <span id="abst0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Conclusiones</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">El ADE est&#225; aumentado en AOS en relaci&#243;n directa con su gravedad&#44; sin embargo&#44; sus niveles no se ven modificados por el tratamiento efectivo de la AOS con CPAP&#46;</p></span>"
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            "identificador" => "abst0040"
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        "etiqueta" => "&#9734;"
        "nota" => "<p class="elsevierStyleNotepara" id="npar0010">Please cite this article as&#58; Le&#243;n Sub&#237;as E&#44; G&#243;mara de la Cal S&#44; Marin Trigo JM&#46; Ancho de distribuci&#243;n eritrocitaria en apnea obstructiva del sue&#241;o&#46; Arch Bronconeumol&#46; 2017&#59;53&#58;114&#8211;119&#46;</p>"
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          "leyenda" => "<p id="spar0065" class="elsevierStyleSimplePara elsevierViewall">Variables with normal distribution are expressed as mean&#177;standard deviation and variables with non-normal distribution are expressed as median &#40;interquartile range&#41;&#46;</p><p id="spar0070" class="elsevierStyleSimplePara elsevierViewall">BMI&#44; body mass index&#59; CRP&#44; C-reactive protein&#59; DBP&#44; diastolic blood pressure&#59; FEV1&#44; forced expiratory volume in 1<span class="elsevierStyleHsp" style=""></span>s&#59; FVC&#44; forced vital capacity&#59; Hb&#44; hemoglobin&#59; HDL&#44; high-density lipoprotein&#59; LDL&#44; low-density lipoprotein&#59; OSA&#44; sleep obstructive apnea&#59; PYI&#44; pack-year index&#59; RDW&#44; red cell distribution width&#59; SBP&#44; systolic blood pressure&#46;</p>"
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                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="table-head  " align="" valign="top" scope="col" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">No OSA &#40;<span class="elsevierStyleItalic">n</span>&#61;34&#41;&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Age&#44; years&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;004&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">19 &#40;52&#46;8&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">110 &#40;80&#46;9&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;001&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">25&#46;9&#177;3&#46;3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">31&#46;1&#177;4&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;000&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Epworth&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">10&#46;3&#177;4&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;973&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">SBP&#44; mmHg&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">118&#46;5&#177;15&#46;3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">129&#46;3&#177;14&#46;9&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">DBP&#44; mmHg&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">80&#46;1&#177;11&#46;4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;005&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">FVC&#44; l&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">4&#46;38&#177;1&#46;06&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;611&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">FEV1&#44; l&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">3&#46;46&#177;0&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;369&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">214&#46;2&#177;39&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;05&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">120 &#40;72&#8211;162&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">132 &#40;89&#8211;175&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;09&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">54&#46;2&#177;9&#46;3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">48&#46;5&#177;10&#46;5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;004&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Triglycerides&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">93&#46;5 &#40;50&#46;5&#8211;136&#46;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">128&#46;5 &#40;42&#46;5&#8211;214&#46;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;000&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">86&#46;5 &#40;76&#46;5&#8211;96&#46;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">92 &#40;73&#8211;111&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;017&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Creatinine&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;87&#177;0&#46;14&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;106&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;058&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="table-head  " align="" valign="top" scope="col">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " colspan="2" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">Linear Regression</th><th class="td" title="table-head  " colspan="2" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">Multiple Regression &#40;Model With AHI&#41;</th><th class="td" title="table-head  " colspan="2" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">Multiple Regression &#40;Model With CT90&#41;</th></tr><tr title="table-row"><th class="td" title="table-head  " align="" valign="top" scope="col" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">r</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">r</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">r</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Age&#44; years&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;082&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;291&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">BMI&#44; kg&#47;m<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;190&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;014&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;181&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;01&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;151&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;03&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Epworth&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;151&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;054&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">PYI&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;071&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;366&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">SBP&#44; mmHg&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;022&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;783&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">DBP&#44; mmHg&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;085&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;280&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Total cholesterol&#44; mg&#47;ml&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8722;0&#46;014&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;857&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">LDL cholesterol&#44; mg&#47;ml&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;095&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;232&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">HDL cholesterol&#44; mg&#47;ml&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8722;0&#46;150&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;053&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Triglycerides&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8722;0&#46;005&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;949&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Blood glucose&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;109&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;163&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Creatinine&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8722;0&#46;038&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;627&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Hb&#44; g&#47;l&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8722;0&#46;074&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;343&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">CRP&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;197&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;011&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;236&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;001&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;146&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;035&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">CT90&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;215&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;007&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8211;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8211;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;232&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;002&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">AHI&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;212&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;006&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;223&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;002&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8211;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8211;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
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          "en" => "<p id="spar0075" class="elsevierStyleSimplePara elsevierViewall">Relationship of RDW With Baseline Variables in Overall Population &#40;<span class="elsevierStyleItalic">n</span>&#61;172&#41;&#46;</p>"
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          "leyenda" => "<p id="spar0090" class="elsevierStyleSimplePara elsevierViewall">Variables with normal distribution are expressed as mean&#177;standard deviation and variables with non-normal distribution are expressed as median &#40;interquartile range&#41;&#46;</p><p id="spar0095" class="elsevierStyleSimplePara elsevierViewall">AHI&#44; apnea-hypopnea index&#59; BMI&#44; body mass index&#59; CPAP&#44; continuous positive airway pressure&#59; CRP&#44; C-reactive protein&#59; DBP&#44; diastolic blood pressure&#59; FEV1&#44; forced expiratory volume in 1<span class="elsevierStyleHsp" style=""></span>s&#59; FVC&#44; forced vital capacity&#59; Hb&#44; hemoglobin&#59; HDL&#44; high-density lipoprotein&#59; LDL&#44; low-density lipoprotein&#59; OSA&#44; sleep obstructive apnea&#59; PYI&#44; pack-year index&#59; RDW&#44; red cell distribution width&#59; SBP&#44; systolic blood pressure&#46;</p>"
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                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="table-head  " align="" valign="top" scope="col">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " colspan="3" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">No OSA &#40;<span class="elsevierStyleItalic">n</span>&#61;32&#41;</th><th class="td" title="table-head  " colspan="3" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">OSA Not Treated With CPAP &#40;<span class="elsevierStyleItalic">n</span>&#61;44&#41;</th><th class="td" title="table-head  " colspan="3" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">OSA Treated With CPAP &#40;<span class="elsevierStyleItalic">n</span>&#61;71&#41;</th></tr><tr title="table-row"><th class="td" title="table-head  " align="" valign="top" scope="col" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Baseline&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">1 Year&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Baseline&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">1 Year&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Baseline&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">1 Year<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">AHI&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">2&#46;1&#177;1&#46;3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">2&#46;3&#177;2&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;648&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">28&#177;45&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">29&#177;43&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;144&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">44&#177;39&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">4&#46;7&#177;3&#46;9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#60;&#46;001&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Epworth&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">10&#177;5&#46;5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">8&#46;3&#177;4&#46;6&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;029&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">9&#46;1&#177;4&#46;3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">7&#46;1&#177;4&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;003&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">11&#46;5&#177;4&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">6&#46;9&#177;5&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;000&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">BMI&#44; kg&#47;m<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">25&#46;5&#177;3&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">25&#46;6&#177;3&#46;3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;749&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">28&#46;4&#177;4&#46;4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">28&#46;5&#177;4&#46;5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;687&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">33&#46;1&#177;5&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">32&#46;7&#177;4&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;025&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">SBP&#44; mmHg&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">117&#46;9&#177;16&#46;5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">112&#46;4&#177;13&#46;9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;055&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">122&#46;7&#177;14&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">121&#46;9&#177;11&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;701&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">132&#46;7&#177;13&#46;7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">131&#46;4&#177;14&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;468&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">DBP&#44; mmHg&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">73&#46;7&#177;11&#46;7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">68&#46;5&#177;9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;007&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">74&#46;1&#177;10&#46;3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">73&#46;7&#177;8&#46;7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;815&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">83&#46;4&#177;11&#46;03&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">78&#46;1&#177;9&#46;9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;001&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Total cholesterol&#44; mg&#47;ml&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">201&#46;5&#177;39&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">201&#46;3&#177;39&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;977&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">211&#46;6&#177;37&#46;9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">210&#177;32&#46;4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;648&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">216&#46;7&#177;39&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">211&#46;9&#177;36&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;248&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">LDL cholesterol&#44; mg&#47;ml&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">119 &#40;102&#8211;141&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">124 &#40;98&#8211;141&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;864&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">129 &#40;109&#8211;156&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">128 &#40;113&#8211;146&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;971&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">137 &#40;117&#8211;161&#46;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">129 &#40;110&#8211;152&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;205&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">HDL cholesterol&#44; mg&#47;ml&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">54&#46;3&#177;9&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">52&#46;9&#177;10&#46;5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;303&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">51&#46;1&#177;9&#46;6&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">50&#46;8&#177;10&#46;9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;790&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">46&#46;8&#177;11&#46;2&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">46&#46;9&#177;10&#46;4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;830&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Triglycerides&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">94 &#40;76&#8211;122&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">92 &#40;71&#8211;125&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;546&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">114 &#40;88&#8211;167&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">125 &#40;81&#8211;168&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;683&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">137 &#40;102&#8211;192&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">140 &#40;98&#8211;194&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;425&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Blood glucose&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">88 &#40;82&#8211;97&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">84 &#40;76&#8211;93&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;039&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">89 &#40;82&#8211;101&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">90 &#40;85&#8211;98&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;054&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">95 &#40;85&#8211;102&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">95 &#40;90&#8211;102&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;529&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Creatinine&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;83&#177;0&#46;12&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;83&#177;0&#46;13&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;823&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;86&#177;0&#46;14&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;83&#177;0&#46;12&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;098&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;8&#177;0&#46;14&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;8&#177;0&#46;14&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;979&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Hb&#44; g&#47;l&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">16&#46;6 &#40;13&#46;4&#8211;15&#46;2&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">14&#46;3 &#40;13&#46;5&#8211;15&#46;1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;534&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">15 &#40;14&#46;3&#8211;15&#46;6&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">15&#46;2 &#40;14&#46;3&#8211;15&#46;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;447&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">14&#46;9 &#40;14&#46;3&#8211;15&#46;7&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">14&#46;7 &#40;13&#46;8&#8211;15&#46;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;042&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">CRP&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
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Original Article
Red Cell Distribution Width in Obstructive Sleep Apnea
Ancho de distribución eritrocitaria en apnea obstructiva del sueño
Erica León Subías
Corresponding author
ericaleonsubias@gmail.com

Corresponding author.
, Sara Gómara de la Cal, José María Marin Trigo
Servicio de Neumología, Hospital Universitario Miguel Servet, Zaragoza, Spain
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          "en" => "<p id="spar0055" class="elsevierStyleSimplePara elsevierViewall">Linear correlation of apnea-hypopnea &#40;AHI&#41; index and red cell distribution width &#40;RDW&#41; for the overall study population&#46;</p>"
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    "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0065">Introduction</span><p id="par0005" class="elsevierStylePara elsevierViewall">Obstructive sleep apnea &#40;OSA&#41; is a very common condition in the general population&#44; and is associated with loss of quality of life&#44; arterial hypertension&#44; cardiovascular and cerebrovascular diseases&#44; traffic accidents&#44; and increased mortality&#46;<a class="elsevierStyleCrossRefs" href="#bib0125"><span class="elsevierStyleSup">1&#44;2</span></a> In Spain&#44; between 3&#37; and 6&#37; of the population have symptomatic sleep apnea-hypopnea syndrome &#40;SAHS&#41; and 24&#37;&#8211;26&#37; have OSA&#44; defined as more than 5 nocturnal apnea-hypopnea events per hour &#40;AHI&#62;5&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0135"><span class="elsevierStyleSup">3</span></a> OSA is associated with variable degrees of hypoxemia&#44; hypercapnia&#44; reduced intrathoracic pressure&#44; and sympathetic and cortical central nervous system activation&#46; These intermediary mechanisms can potentially predispose to the development of cardiovascular and metabolic diseases and premature death&#46; Currently&#44; the diagnosis of clinically suspected OSA must be confirmed with sleep studies&#46; To date&#44; no clinically useful variables for cardiovascular risk specifically associated with OSA have been identified&#44; but such biomarkers would be of great benefit in assisting the physician&#39;s decision-making process&#59; for example&#44; when to perform a sleep study or whether to start treatment or monitor the patient instead&#46; Spanish guidelines on the management of OSA recommend a metabolic profile&#44; including complete blood count&#44; basic biochemistry parameters and a lipid profile in all patients undergoing a sleep study&#46;<a class="elsevierStyleCrossRef" href="#bib0125"><span class="elsevierStyleSup">1</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">One of the variables routinely analyzed in a complete blood count is red cell distribution width &#40;RDW&#41;&#46; RDW is a quantitative measure of the variability of red cell sizes&#46; It is obtained using a mathematical calculation &#40;<a class="elsevierStyleCrossRef" href="#fig0005">Fig&#46; 1</a>&#41;&#44; so the cost is negligible&#46; Its main application at present is for the differential diagnosis of anemia&#44;<a class="elsevierStyleCrossRef" href="#bib0140"><span class="elsevierStyleSup">4</span></a> and values are not affected by the patient&#39;s nutritional status&#44; sex or age&#46;<a class="elsevierStyleCrossRef" href="#bib0145"><span class="elsevierStyleSup">5</span></a> Recent studies show that increased RDW&#44; even with normal reference ranges&#44; is strongly associated with a greater risk of death and cardiovascular disease in middle-aged and elderly individuals&#46;<a class="elsevierStyleCrossRefs" href="#bib0150"><span class="elsevierStyleSup">6&#8211;15</span></a> RDW can act as a biomarker for cardiovascular risk that is sensitive to systemic inflammatory changes and to mobilization of iron deposits during oxidative stress&#46;<a class="elsevierStyleCrossRef" href="#bib0175"><span class="elsevierStyleSup">11</span></a> A relationship between RDW and OSA severity has been described in patients with and without associated cardiovascular disease&#44;<a class="elsevierStyleCrossRefs" href="#bib0200"><span class="elsevierStyleSup">16&#8211;18</span></a> and RDW has been reported to diminish with the use of continuous positive airway pressure &#40;CPAP&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0215"><span class="elsevierStyleSup">19</span></a> However&#44; these studies include limited numbers of patients&#44; follow-up is short&#44; and most include patients with comorbidities other than OSA&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><p id="par0015" class="elsevierStylePara elsevierViewall">We postulated that RDW may be a biomarker that can identify the presence and severity of OSA in patients with suspected sleep-disordered breathing&#46;</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Methods</span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Study Subjects</span><p id="par0020" class="elsevierStylePara elsevierViewall">Data from a prospective study on epigenetic abnormalities in OSA currently under analysis &#40;EPIOSA&#44; ClinicalTrials&#46;gov&#58; <a href="ctgov:NCT02131610">NCT02131610</a>&#41; were used&#46; The study included patients aged 18&#8211;60 years referred to the Sleep-Disordered Breathing Unit &#40;SDBU&#41; of the Hospital Universitario Miguel Servet&#44; Zaragoza with suspected OSA between February 2013 and July 2014&#46; The general methodology and inclusion&#47;exclusion criteria of this study have been described elsewhere&#46;<a class="elsevierStyleCrossRef" href="#bib0220"><span class="elsevierStyleSup">20</span></a> In summary&#44; the following subjects were excluded&#58; active smokers or individuals with a smoking history of &#62;5 pack-years&#44; regular consumption of alcohol &#40;mean &#8805;20<span class="elsevierStyleHsp" style=""></span>g&#47;day&#41;&#44; and subjects with sleep disorders other than OSA or any comorbidity requiring the regular administration of any drug&#46; Patients with blood pressure &#8805;140&#47;90<span class="elsevierStyleHsp" style=""></span>mmHg&#44; blood glucose &#62;126<span class="elsevierStyleHsp" style=""></span>mg&#47;ml or body mass index &#40;BMI&#41; &#8805;35<span class="elsevierStyleHsp" style=""></span>kg&#47;m<span class="elsevierStyleSup">2</span> in the first visit were also excluded&#46; The study protocol was approved by the Ethics and Clinical Research Committee of Aragon &#40;03&#47;2013&#41;&#46;</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Procedures</span><p id="par0025" class="elsevierStylePara elsevierViewall">In the first visit&#44; all subjects underwent a standardized protocol of study tests as follows&#58; &#40;1&#41; clinical questionnaires &#40;general health&#44; nutrition&#44; quality of life&#44; daytime sleepiness&#44; comorbidities&#44; sleep hygiene&#41;&#59; &#40;2&#41; anthropometrics and general examination &#40;blood pressure&#44; weight&#44; height&#44; and neck&#44; waist and hip circumferences&#41;&#59; &#40;3&#41; cardiorespiratory polygraph at home&#59; &#40;4&#41; spirometry&#59; &#40;5&#41; ultrasonography of internal carotid arteries&#44; carotid sinus&#44; and common carotid artery&#59; &#40;6&#41; full blood analysis&#46; RDW was determined using a blood cell counter &#40;Coulter<span class="elsevierStyleSup">&#174;</span> LH 780&#41;&#46; Additional tests&#44; including complete blood count&#44; were repeated in all patients after 1 year&#44; irrespective of OSA diagnosis&#44; severity or treatment received&#46; Polygraphy was performed and analyzed according to SEPAR recommendations and the Spanish SAOS1 initiative&#46;<a class="elsevierStyleCrossRef" href="#bib0125"><span class="elsevierStyleSup">1</span></a></p><p id="par0030" class="elsevierStylePara elsevierViewall">The diagnosis of OSA and severity were established according to the number of apneas and hypopneas per hour of recording &#40;apnea&#47;hypopnea index &#91;AHI&#93;&#41;&#46; Subjects with an AHI&#60;5 were considered healthy&#46; After receiving a diagnosis of OSA&#44; patients were prescribed CPAP according to the routine recommendations&#46;<a class="elsevierStyleCrossRef" href="#bib0125"><span class="elsevierStyleSup">1</span></a> A patient was considered appropriately treated when CPAP was delivered for an average of more than 4<span class="elsevierStyleHsp" style=""></span>h&#47;day throughout the follow-up period&#46; CPAP use was evaluated in each visit by recording the readings on the CPAP unit counter&#46;</p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Statistical Analysis</span><p id="par0035" class="elsevierStylePara elsevierViewall">Categorical variables are shown as case numbers and percentages&#46; The Kolmogorov&#8211;Smirnov test was used to assess the distribution of the quantitative variables&#46; Variables with normal distribution are expressed as mean&#177;standard deviation and variables with non-normal distribution as median and interquartile range&#46; Comparison between groups was performed using the Student <span class="elsevierStyleItalic">t</span> test and ANOVA or the Mann&#8211;Whitney <span class="elsevierStyleItalic">U</span> test and Kruskal&#8211;Wallis test&#44; depending on the distribution of the variable&#46; Differences between variables with categorical data were established using the Chi-squared test&#46; The relationship between the individual RDW value and other variables of clinical interest was evaluated using adjusted linear regression models&#46; Statistical analyses were performed using version 20 of the SPSS statistical package &#40;IBM Corporation&#44; Somers NY&#44; USA&#41;&#46;</p></span></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Results</span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0095">Characteristics of Study Population</span><p id="par0040" class="elsevierStylePara elsevierViewall"><a class="elsevierStyleCrossRef" href="#fig0010">Fig&#46; 2</a> shows the study patient disposition&#46; A total of 172 individuals meeting the inclusion&#47;exclusion criteria were included in the final analysis&#46; <a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a> describes the population characteristics&#44; distributed by presence or absence of OSA&#46;</p><elsevierMultimedia ident="fig0010"></elsevierMultimedia><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0045" class="elsevierStylePara elsevierViewall">Ninety-two percent of the subjects were of Caucasian ethnic origin&#46; Controls with OSA were on average older &#40;40&#46;5 vs&#46; 45&#46;6 years <span class="elsevierStyleItalic">P</span>&#61;&#46;004&#41;&#44; with higher BMI &#40;26 vs&#46; 31&#44; <span class="elsevierStyleItalic">P</span>&#60;&#46;001&#41; and significantly higher levels of blood pressure&#44; cholesterol&#44; triglycerides&#44; blood glucose&#44; C-reactive protein &#40;CRP&#41; &#40;<span class="elsevierStyleItalic">P</span>&#60;&#46;05 for all differences&#41;&#46;</p></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0100">Red Cell Distribution Width</span><p id="par0050" class="elsevierStylePara elsevierViewall">Median RDW and interquartile range in the overall population at the beginning of the study were 13&#46;3 &#40;12&#46;3&#8211;14&#46;3&#41;&#58; in healthy subjects&#44; 13&#46;15 &#40;12&#46;07&#8211;14&#46;23&#41; and in OSA patients&#44; 13&#46;40 &#40;12&#46;40&#8211;14&#46;40&#41; &#40;<span class="elsevierStyleItalic">P</span>&#61;&#46;036&#41;&#46; The correlation between RDW and baseline characteristics of the study subjects is shown in <a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>&#46; RDW is significantly associated with the following&#58; BMI &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;190&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;014&#41;&#59; CRP &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;197&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;011&#41;&#59; time SaO<span class="elsevierStyleInf">2</span>&#60;90&#37; &#40;CT90&#41; &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;215&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;007&#41;&#59; and AHI &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;212&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;006&#41; &#40;<a class="elsevierStyleCrossRef" href="#fig0015">Fig&#46; 3</a>&#41;&#46; <a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a> also shows an adjusted multiple regression model in which the presence of age&#44; hemoglobin &#40;Hb&#41; and BMI are forced&#46; RDW maintained a positive independent relationship with AHI &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;223&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;002&#41; and with CT90 &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;232&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;002&#41;&#46; In these models&#44; BMI and CRP also persist as independent variables associated with RDW&#46; A secondary analysis was performed among OSA patients only to establish relationships between RDW and OSA severity&#46; After adjusting for the multiple regression model&#44; RDW remains significantly associated with CT90 &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;255&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;002&#41; and AHI &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;231&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;005&#41;&#46; In this analysis of OSA patients only&#44; BMI and CRP are not independently related with RDW&#46;</p><elsevierMultimedia ident="tbl0010"></elsevierMultimedia><elsevierMultimedia ident="fig0015"></elsevierMultimedia></span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0105">Follow-Up</span><p id="par0055" class="elsevierStylePara elsevierViewall"><a class="elsevierStyleCrossRef" href="#tbl0015">Table 3</a> shows the characteristics of the participants at the initial visit and after 1 year of follow-up&#46; Of the 34 healthy subjects&#44; 32 attended for re-evaluation&#46;</p><elsevierMultimedia ident="tbl0015"></elsevierMultimedia><p id="par0060" class="elsevierStylePara elsevierViewall">None of the OSA patients were lost-to-follow-up&#46; Of these&#44; 85 began CPAP treatment&#46; Seventy-one of these adhered appropriately to treatment and were included in the group &#8220;OSA treated with CPAP&#8221;&#46;</p><p id="par0065" class="elsevierStylePara elsevierViewall">Of the other 14 patients who began CPAP&#44; 4 subsequently rejected this treatment and the other 10 were withdrawn due to lack of compliance&#46; These 14 patients were included in the group &#8220;OSA not treated with CPAP&#8221;&#46; The remaining patients in this group did not receive CPAP as they did not meet the medical criteria &#40;<span class="elsevierStyleItalic">n</span>&#61;21&#41;&#44; or because they refused to use the system &#40;<span class="elsevierStyleItalic">n</span>&#61;9&#41;&#46;</p><p id="par0070" class="elsevierStylePara elsevierViewall">Not included in this table are data from 23 OSA patients who received alternative treatment to CPAP &#40;18 received different forms of upper airway surgery&#44; and 2 used mandibular advancement devices&#41; and 3 who refused a repeat CRP determination&#46; After 1 year&#44; no changes were observed in study variables&#44; including RDW&#44; in healthy subjects or in OSA patients not treated with CPAP&#46; In OSA patients treated with CPAP&#44; daytime sleepiness measured according to the Epworth questionnaire and diastolic pressure reduced significantly during the 1-year study period&#44; while RDW levels were not significantly affected&#46; A subanalysis grouping patients according to their OSA severity&#44; based on AHI &#40;i&#46;e&#46;&#44; 5&#8211;15&#44; 15&#8211;30&#44; or &#62;30&#41;&#44; did not reveal any RDW changes&#44; irrespective of whether they had received CPAP treatment or not&#46;</p></span></span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0110">Discussion</span><p id="par0075" class="elsevierStylePara elsevierViewall">The main finding of the study suggests that RDW is greater in patients with OSA than in healthy subjects&#44; and that it is independently associated with the level of OSA severity determined by AHI or by recorded time of hypoxemia&#46; However&#44; further studies are required to determine the potential utility of RDW as a biomarker capable of distinguishing between healthy subjects and those with OSA&#46; The other result of interest is that RDW levels are not modified with effective CPAP treatment&#46; RDW has recently been evaluated as a possible biomarker in various types of heart disease&#44; due to its positive relationship with cardiovascular death&#46;<a class="elsevierStyleCrossRefs" href="#bib0155"><span class="elsevierStyleSup">7&#8211;14</span></a> The few studies that have evaluated the relationship between RDW and OSA suggest that RDW levels rise in association with the degree of severity of OSA&#46;<a class="elsevierStyleCrossRefs" href="#bib0200"><span class="elsevierStyleSup">16&#8211;19</span></a> The hypothesis proposed to explain high RDW levels in OSA is the presence of systemic inflammation that mobilizes iron deposits&#44; and&#44; as a result&#44; may lead to increased RDW values&#46; The association between OSA and systemic inflammation continues to be a topic of debate&#46; Research primarily conducted in laboratory animals indicates that intermittent hypoxia plays a role in the development of accelerated atherosclerosis&#44; and one of the main intermediate mechanisms of this is systemic inflammation&#46;<a class="elsevierStyleCrossRef" href="#bib0225"><span class="elsevierStyleSup">21</span></a> Carotid ultrasonography has been used to show how CPAP reduces carotid intima-media thickness as an expression of improvement in subclinical atherosclerosis&#46;<a class="elsevierStyleCrossRef" href="#bib0230"><span class="elsevierStyleSup">22</span></a> However&#44; controlled studies have not shown any reduction in the level of systemic inflammation evaluated using various proinflammatory cytokines after 6 months of treatment with CPAP&#46;<a class="elsevierStyleCrossRef" href="#bib0235"><span class="elsevierStyleSup">23</span></a> Thus&#44; the role of inflammation as a factor explaining the consistent increase in cardiovascular morbidity and mortality in OSA patients is currently in question&#46;<a class="elsevierStyleCrossRef" href="#bib0130"><span class="elsevierStyleSup">2</span></a> Data from our study indicate that CRP levels are higher in OSA patients than in healthy individuals&#59; however&#44; effective CPAP treatment did not help reduce CRP or RDW levels&#46; This supports the findings of the randomized trial by Stradling et al&#46;&#44;<a class="elsevierStyleCrossRef" href="#bib0235"><span class="elsevierStyleSup">23</span></a> in which CPAP failed to reduce OSA-related systemic inflammation&#46;</p><p id="par0080" class="elsevierStylePara elsevierViewall">The finding of a positive correlation between RDW and CRP in the overall population and among OSA patients reinforces the idea that RDW may be a biomarker for systemic inflammation &#40;<a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>&#41;&#46; However&#44; no independent relationship between RDW and CRP was identified in OSA patients&#46; This suggests that these 2 biomarkers&#44; at least in OSA&#44; reflect different physiopathological processes&#46; After 1 year of CPAP treatment&#44; RDW remained unchanged in OSA patients&#44; so our results do not confirm previous results in which RDW was modified with the use of CPAP&#46;<a class="elsevierStyleCrossRef" href="#bib0215"><span class="elsevierStyleSup">19</span></a> In this study&#44; follow-up was only 6 months&#44; the population was smaller &#40;n&#61;58&#41;&#44; only patients with AHI&#62;30 were included&#44; and most patients had other comorbidities confounding the interpretation of results that RDW&#44; like other circulating biomarkers such as CRP&#44; do not change with CPAP&#46; Our results do not confirm the effect of CPAP on RDW levels&#46; However&#44; the study populations are different&#44; since our patients were selected with the aim of avoiding potential causes of systemic inflammation other than OSA&#44; thus avoiding bias in interpretation&#46; The lack of effect of CPAP on RDW did not indicate a lack of treatment efficacy&#46; On the contrary&#44; after 1 year of therapy&#44; OSA patients receiving CPAP showed statistically significant reductions in Epworth scale values and diastolic blood pressure figures&#44; findings similar to those repeatedly described in association with CPAP&#46;<a class="elsevierStyleCrossRef" href="#bib0240"><span class="elsevierStyleSup">24</span></a></p><p id="par0085" class="elsevierStylePara elsevierViewall">Some limitations must be taken into account when interpreting the results of this study&#44; mainly its observational nature and the lack of randomization to evaluate the effect of CPAP&#46; However&#44; the sample size was&#44; according to the literature&#44; sufficient to allow changes due to the CPAP intervention to be detected&#46; The groups of healthy subjects and OSA patients are not fully comparable&#44; since the healthy subjects were somewhat younger&#44; more of them were women&#44; and they presented a lower BMI&#44; lower blood pressure and lower blood lipid levels&#46;</p><p id="par0090" class="elsevierStylePara elsevierViewall">The inclusion&#47;exclusion criteria of our series are also very restrictive&#44; and the population was limited to subjects aged 18&#8211;60 years&#46; This prevents any generalization of results to the overall OSA population&#46;</p><p id="par0095" class="elsevierStylePara elsevierViewall">On the other hand&#44; as the screening of participants was restrictive&#44; selection bias was avoided &#40;subjects with chronic diseases associated with an increase in RDW were excluded&#41;&#44; so robust associations between RDW and OSA can be established&#46;</p></span><span id="sec0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0115">Conclusions</span><p id="par0100" class="elsevierStylePara elsevierViewall">RDW was higher among a population of OSA patients with no associated comorbidity than among healthy individuals without OSA&#46; The RDW level was independently associated with the severity of OSA in the absence of associated comorbidity&#46;</p><p id="par0105" class="elsevierStylePara elsevierViewall">However&#44; RDW was not modified by effective treatment of OSA with CPAP&#44; and this study brings into question the clinical utility of RDW in the management of patients with OSA&#46;</p></span><span id="sec0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0120">Funding</span><p id="par0110" class="elsevierStylePara elsevierViewall">EPIOSA is a research project funded by the Instituto de Salud Carlos III &#40;PI12&#47;01275&#41;&#44; the Spanish Society of Pulmonology and Thoracic Surgery &#40;SEPAR 71&#47;2012&#41;&#44; and the Aragon Respiratory Tract Society &#40;SADAR 02&#47;2013&#41;&#46;</p></span><span id="sec0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0125">Authorship</span><p id="par0115" class="elsevierStylePara elsevierViewall">Le&#243;n E&#46; had access to the data&#44; completed them and entered them in a database&#44; and subsequently performed the statistical analysis&#46; Le&#243;n E&#46; was the principal author&#46; Marin J&#46;M&#46; supervised and helped to complete the study&#46; G&#243;mara S&#46; contributed to data analysis and interpretation&#46; All participated in the preparation of the manuscript&#46;</p></span><span id="sec0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0130">Conflict of Interests</span><p id="par0120" class="elsevierStylePara elsevierViewall">The authors declare that they have no conflict of interests related with the topic of this manuscript&#46;</p></span></span>"
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              "titulo" => "Characteristics of Study Population"
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              "titulo" => "Red Cell Distribution Width"
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    "fechaRecibido" => "2016-01-07"
    "fechaAceptado" => "2016-05-15"
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            0 => "Red cell distribution width"
            1 => "Obstructive sleep apnea"
            2 => "Biomarker"
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          "clase" => "keyword"
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          "identificador" => "xpalclavsec816605"
          "palabras" => array:3 [
            0 => "Ancho de distribuci&#243;n eritrocitaria"
            1 => "Apnea obstructiva del sue&#241;o"
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        "titulo" => "Abstract"
        "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Introduction</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Red cell distribution width &#40;RDW&#41; describes heterogeneity in the size of red blood cells&#46; An increase in RDW has been associated with excess mortality in heart failure and other chronic diseases&#46; Since there is an increased risk of cardiovascular morbidity and mortality in obstructive sleep apnea &#40;OSA&#41;&#44; it is possible that these patients have a high RDW&#46;</p></span> <span id="abst0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Method</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">We recruited subjects aged 18&#8211;60 years referred to the sleep-disordered breathing unit for suspected OSA&#46; Subjects with any comorbidity were excluded&#46; Apnea-hypopnea index &#40;AHI&#41; was calculated from the respiratory polygraphy&#46; The RDW was obtained from the complete blood count&#46; Changes in RDW after one year of treatment with continuous positive airway pressure &#40;CPAP&#41; were determined&#46;</p></span> <span id="abst0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Results</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">We included 34 healthy subjects and 138 with OSA&#44; aged 40&#46;5&#177;9&#46;8 and 45&#46;6&#177;9&#46;2 &#40;<span class="elsevierStyleItalic">P</span>&#61;&#46;004&#41; years&#44; respectively&#46; The RDW was higher in subjects with OSA compared to healthy subjects&#58; 13&#46;40 &#40;12&#46;40&#8211;14&#46;40&#41; vs&#46; 13&#46;15 &#40;12&#46;07&#8211;14&#46;23&#41; &#40;<span class="elsevierStyleItalic">P</span>&#61;&#46;036&#41;&#46; AHI showed a positive independent relationship with RDW in both the whole population &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;223&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;002&#41; and the OSA group &#40;<span class="elsevierStyleItalic">r</span>&#61;0&#46;231&#59; <span class="elsevierStyleItalic">P</span>&#61;&#46;005&#41;&#46; No significant changes were found in RDW after one year of CPAP therapy&#46;</p></span> <span id="abst0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Conclusions</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">RDW increase in patients with OSA is directly associated with severity&#44; although levels are not modified by the effective treatment of OSA with CPAP&#46;</p></span>"
        "secciones" => array:4 [
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            "titulo" => "Method"
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        "resumen" => "<span id="abst0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Introducci&#243;n</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">El ancho de distribuci&#243;n eritrocitaria &#40;ADE&#41; describe el grado de heterogeneidad en el tama&#241;o de los hemat&#237;es&#46; Un incremento de ADE se ha asociado con exceso de mortalidad en insuficiencia cardiaca y otras enfermedades cr&#243;nicas&#46; Dado que existe mayor riesgo de morbimortalidad cardiovascular en apnea obstructiva del sue&#241;o &#40;AOS&#41;&#44; es posible que estos pacientes presenten un ADE elevado&#46;</p></span> <span id="abst0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">M&#233;todo</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">Se reclutaron sujetos de 18 a 60 a&#241;os remitidos a la Unidad de Trastornos Respiratorios del Sue&#241;o &#40;UTRS&#41; por sospecha de AOS&#46; Se excluyeron sujetos con cualquier comorbilidad&#46; En la poligraf&#237;a respiratoria se determin&#243; el &#237;ndice de apnea-hipopnea &#40;IAH&#41;&#46; El ADE se obtuvo a partir del hemograma&#46; Al a&#241;o de seguimiento se determinaron los cambios de ADE tras tratamiento con presi&#243;n positiva continua en la v&#237;a respiratoria &#40;CPAP&#41;&#46;</p></span> <span id="abst0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Resultados</span><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Se incluyeron 34 sujetos sin AOS y 138 con AOS con una edad de 40&#44;5<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>9&#44;8 y 45&#44;6<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>9&#44;2 &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;004&#41; respectivamente&#46; El ADE fue mayor en sujetos con AOS que en sujetos sanos&#58; 13&#44;40 &#40;12&#44;40-14&#44;40&#41; vs 13&#44;15 &#40;12&#44;07-14&#44;23&#41; &#40;p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;036&#41;&#46; El IAH mostr&#243; una relaci&#243;n positiva e independiente con ADE tanto en el conjunto de la poblaci&#243;n &#40;r<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;223&#59; p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;002&#41; como en el grupo con AOS &#40;r<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;231&#59; p<span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>0&#44;005&#41;&#46; No se observaron cambios significativos de ADE tras un a&#241;o de tratamiento con CPAP&#46;</p></span> <span id="abst0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Conclusiones</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">El ADE est&#225; aumentado en AOS en relaci&#243;n directa con su gravedad&#44; sin embargo&#44; sus niveles no se ven modificados por el tratamiento efectivo de la AOS con CPAP&#46;</p></span>"
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        "nota" => "<p class="elsevierStyleNotepara" id="npar0010">Please cite this article as&#58; Le&#243;n Sub&#237;as E&#44; G&#243;mara de la Cal S&#44; Marin Trigo JM&#46; Ancho de distribuci&#243;n eritrocitaria en apnea obstructiva del sue&#241;o&#46; Arch Bronconeumol&#46; 2017&#59;53&#58;114&#8211;119&#46;</p>"
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          "en" => "<p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">Red cell distribution width &#40;RDW&#41; formula&#46;</p>"
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          "en" => "<p id="spar0055" class="elsevierStyleSimplePara elsevierViewall">Linear correlation of apnea-hypopnea &#40;AHI&#41; index and red cell distribution width &#40;RDW&#41; for the overall study population&#46;</p>"
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          "leyenda" => "<p id="spar0065" class="elsevierStyleSimplePara elsevierViewall">Variables with normal distribution are expressed as mean&#177;standard deviation and variables with non-normal distribution are expressed as median &#40;interquartile range&#41;&#46;</p><p id="spar0070" class="elsevierStyleSimplePara elsevierViewall">BMI&#44; body mass index&#59; CRP&#44; C-reactive protein&#59; DBP&#44; diastolic blood pressure&#59; FEV1&#44; forced expiratory volume in 1<span class="elsevierStyleHsp" style=""></span>s&#59; FVC&#44; forced vital capacity&#59; Hb&#44; hemoglobin&#59; HDL&#44; high-density lipoprotein&#59; LDL&#44; low-density lipoprotein&#59; OSA&#44; sleep obstructive apnea&#59; PYI&#44; pack-year index&#59; RDW&#44; red cell distribution width&#59; SBP&#44; systolic blood pressure&#46;</p>"
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                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Age&#44; years&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">40&#46;5&#177;9&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">45&#46;6&#177;9&#46;2&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;004&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Men&#44; <span class="elsevierStyleItalic">n</span> &#40;&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">19 &#40;52&#46;8&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">110 &#40;80&#46;9&#37;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;001&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">BMI&#44; kg&#47;m<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">25&#46;9&#177;3&#46;3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">31&#46;1&#177;4&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;000&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Epworth&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">10&#46;3&#177;5&#46;0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">10&#46;3&#177;4&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;973&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">SBP&#44; mmHg&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">118&#46;5&#177;15&#46;3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">129&#46;3&#177;14&#46;9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;000&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">DBP&#44; mmHg&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">74&#46;0&#177;11&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">80&#46;1&#177;11&#46;4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;005&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">FVC&#44; l&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">4&#46;48&#177;0&#46;91&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">4&#46;38&#177;1&#46;06&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;611&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">FEV1&#44; l&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">3&#46;59&#177;0&#46;82&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">3&#46;46&#177;0&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;369&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Total cholesterol&#44; mg&#47;ml&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">200&#177;36&#46;3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">214&#46;2&#177;39&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;05&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">LDL cholesterol&#44; mg&#47;ml&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">120 &#40;72&#8211;162&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">132 &#40;89&#8211;175&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;09&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">HDL cholesterol&#44; mg&#47;ml&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">54&#46;2&#177;9&#46;3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">48&#46;5&#177;10&#46;5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;004&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Triglycerides&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">93&#46;5 &#40;50&#46;5&#8211;136&#46;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">128&#46;5 &#40;42&#46;5&#8211;214&#46;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;000&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Blood glucose&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">86&#46;5 &#40;76&#46;5&#8211;96&#46;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">92 &#40;73&#8211;111&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;017&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Creatinine&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;82&#177;0&#46;15&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;87&#177;0&#46;14&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;106&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Hb&#44; g&#47;l&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">14&#46;6 &#40;12&#46;7&#8211;16&#46;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">14&#46;9 &#40;13&#46;6&#8211;16&#46;2&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;058&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">CRP&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;08 &#40;0&#8211;0&#46;24&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;23 &#40;0&#8211;0&#46;58&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;000&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">RDW&#44; &#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">13&#46;15 &#40;12&#46;07&#8211;14&#46;23&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">13&#46;40 &#40;12&#46;40&#8211;14&#46;40&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;036&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
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          "leyenda" => "<p id="spar0080" class="elsevierStyleSimplePara elsevierViewall">AHI&#44; apnea-hypopnea index&#59; BMI&#44; body mass index&#59; CRP&#44; C-reactive protein&#59; CT90&#44; time SaO<span class="elsevierStyleInf">2</span>&#60;90&#37;&#59; DBP&#44; diastolic blood pressure&#59; Hb&#44; hemoglobin&#59; HDL&#44; high-density lipoprotein&#59; LDL&#44; low-density lipoprotein&#59; PYI&#44; pack-year index&#59; RDW&#44; red cell distribution width&#59; SBP&#44; systolic blood pressure&#46;</p>"
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                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="table-head  " align="" valign="top" scope="col">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " colspan="2" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">Linear Regression</th><th class="td" title="table-head  " colspan="2" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">Multiple Regression &#40;Model With AHI&#41;</th><th class="td" title="table-head  " colspan="2" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">Multiple Regression &#40;Model With CT90&#41;</th></tr><tr title="table-row"><th class="td" title="table-head  " align="" valign="top" scope="col" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">r</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">r</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">r</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Age&#44; years&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;082&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;291&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">BMI&#44; kg&#47;m<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;190&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;014&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;181&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;01&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;151&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;03&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Epworth&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;151&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;054&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">PYI&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;071&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;366&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">SBP&#44; mmHg&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;022&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;783&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">DBP&#44; mmHg&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;085&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;280&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Total cholesterol&#44; mg&#47;ml&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8722;0&#46;014&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;857&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">LDL cholesterol&#44; mg&#47;ml&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;095&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;232&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">HDL cholesterol&#44; mg&#47;ml&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8722;0&#46;150&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;053&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Triglycerides&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8722;0&#46;005&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;949&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Blood glucose&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;109&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;163&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Creatinine&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8722;0&#46;038&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;627&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Hb&#44; g&#47;l&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8722;0&#46;074&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;343&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">CRP&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;197&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;011&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;236&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;001&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;146&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;035&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">CT90&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;215&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;007&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8211;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8211;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;232&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;002&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">AHI&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;212&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;006&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">0&#46;223&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;002&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8211;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#8211;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
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          "leyenda" => "<p id="spar0090" class="elsevierStyleSimplePara elsevierViewall">Variables with normal distribution are expressed as mean&#177;standard deviation and variables with non-normal distribution are expressed as median &#40;interquartile range&#41;&#46;</p><p id="spar0095" class="elsevierStyleSimplePara elsevierViewall">AHI&#44; apnea-hypopnea index&#59; BMI&#44; body mass index&#59; CPAP&#44; continuous positive airway pressure&#59; CRP&#44; C-reactive protein&#59; DBP&#44; diastolic blood pressure&#59; FEV1&#44; forced expiratory volume in 1<span class="elsevierStyleHsp" style=""></span>s&#59; FVC&#44; forced vital capacity&#59; Hb&#44; hemoglobin&#59; HDL&#44; high-density lipoprotein&#59; LDL&#44; low-density lipoprotein&#59; OSA&#44; sleep obstructive apnea&#59; PYI&#44; pack-year index&#59; RDW&#44; red cell distribution width&#59; SBP&#44; systolic blood pressure&#46;</p>"
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                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="table-head  " align="" valign="top" scope="col">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " colspan="3" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">No OSA &#40;<span class="elsevierStyleItalic">n</span>&#61;32&#41;</th><th class="td" title="table-head  " colspan="3" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">OSA Not Treated With CPAP &#40;<span class="elsevierStyleItalic">n</span>&#61;44&#41;</th><th class="td" title="table-head  " colspan="3" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">OSA Treated With CPAP &#40;<span class="elsevierStyleItalic">n</span>&#61;71&#41;</th></tr><tr title="table-row"><th class="td" title="table-head  " align="" valign="top" scope="col" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Baseline&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">1 Year&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Baseline&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">1 Year&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Baseline&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">1 Year<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">AHI&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">2&#46;1&#177;1&#46;3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">2&#46;3&#177;2&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;648&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">28&#177;45&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">29&#177;43&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;144&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">44&#177;39&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">4&#46;7&#177;3&#46;9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#60;&#46;001&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Epworth&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">10&#177;5&#46;5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">8&#46;3&#177;4&#46;6&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;029&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">9&#46;1&#177;4&#46;3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">7&#46;1&#177;4&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;003&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">11&#46;5&#177;4&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">6&#46;9&#177;5&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;000&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">BMI&#44; kg&#47;m<span class="elsevierStyleSup">2</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">25&#46;5&#177;3&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">25&#46;6&#177;3&#46;3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;749&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">28&#46;4&#177;4&#46;4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">28&#46;5&#177;4&#46;5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;687&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">33&#46;1&#177;5&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">32&#46;7&#177;4&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;025&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">SBP&#44; mmHg&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">117&#46;9&#177;16&#46;5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">112&#46;4&#177;13&#46;9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;055&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">122&#46;7&#177;14&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">121&#46;9&#177;11&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;701&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">132&#46;7&#177;13&#46;7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">131&#46;4&#177;14&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;468&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">DBP&#44; mmHg&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">73&#46;7&#177;11&#46;7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">68&#46;5&#177;9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;007&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">74&#46;1&#177;10&#46;3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">73&#46;7&#177;8&#46;7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;815&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">83&#46;4&#177;11&#46;03&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">78&#46;1&#177;9&#46;9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;001&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Total cholesterol&#44; mg&#47;ml&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">201&#46;5&#177;39&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">201&#46;3&#177;39&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;977&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">211&#46;6&#177;37&#46;9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">210&#177;32&#46;4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;648&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">216&#46;7&#177;39&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">211&#46;9&#177;36&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;248&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">LDL cholesterol&#44; mg&#47;ml&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">119 &#40;102&#8211;141&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">124 &#40;98&#8211;141&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;864&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">129 &#40;109&#8211;156&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">128 &#40;113&#8211;146&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;971&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">137 &#40;117&#8211;161&#46;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">129 &#40;110&#8211;152&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;205&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">HDL cholesterol&#44; mg&#47;ml&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">54&#46;3&#177;9&#46;1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">52&#46;9&#177;10&#46;5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;303&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">51&#46;1&#177;9&#46;6&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">50&#46;8&#177;10&#46;9&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;790&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">46&#46;8&#177;11&#46;2&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">46&#46;9&#177;10&#46;4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;830&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Triglycerides&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">94 &#40;76&#8211;122&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">92 &#40;71&#8211;125&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;546&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">114 &#40;88&#8211;167&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">125 &#40;81&#8211;168&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;683&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">137 &#40;102&#8211;192&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">140 &#40;98&#8211;194&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;425&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Blood glucose&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">88 &#40;82&#8211;97&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">84 &#40;76&#8211;93&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;039&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">89 &#40;82&#8211;101&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">90 &#40;85&#8211;98&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;054&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">95 &#40;85&#8211;102&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">95 &#40;90&#8211;102&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;529&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Creatinine&#44; mg&#47;dl&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;83&#177;0&#46;12&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;83&#177;0&#46;13&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;823&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;86&#177;0&#46;14&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;83&#177;0&#46;12&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;098&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;8&#177;0&#46;14&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;8&#177;0&#46;14&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;979&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Hb&#44; g&#47;l&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">16&#46;6 &#40;13&#46;4&#8211;15&#46;2&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">14&#46;3 &#40;13&#46;5&#8211;15&#46;1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;534&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">15 &#40;14&#46;3&#8211;15&#46;6&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">15&#46;2 &#40;14&#46;3&#8211;15&#46;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;447&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">14&#46;9 &#40;14&#46;3&#8211;15&#46;7&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">14&#46;7 &#40;13&#46;8&#8211;15&#46;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;042&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;09 &#40;0&#46;04&#8211;0&#46;23&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;11 &#40;0&#46;05&#8211;0&#46;27&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;673&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;16 &#40;0&#46;1&#8211;0&#46;35&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;18 &#40;0&#46;09&#8211;0&#46;52&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;006&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;28 &#40;0&#46;14&#8211;0&#46;49&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;38 &#40;0&#46;15&#8211;0&#46;57&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;540&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">RDW&#44; &#37;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">13&#46;1 &#40;12&#46;4&#8211;13&#46;6&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">13&#46;2 &#40;12&#46;6&#8211;13&#46;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;942&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">13&#46;3 &#40;12&#46;8&#8211;13&#46;7&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">13&#46;3 &#40;12&#46;9&#8211;13&#46;7&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;571&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">13&#46;4 &#40;13&#46;05&#8211;14&#46;1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">13&#46;6 &#40;13&#46;1&#8211;14&#46;05&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="char" valign="top">&#46;234&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
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Article information
ISSN: 15792129
Original language: English
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