Sex and age differences in the associations between sleep behaviors and all-cause mortality in older adults: results from the National Health and Nutrition Examination Surveys

Hind A. Beydoun, May A. Beydoun, Xiaoli Chen, Jen Jen Chang, Alyssa A. Gamaldo, Shaker M Eid, Alan B. Zonderman

Research output: Contribution to journalArticle

Abstract

Objective Our aim was to examine sex- and age-specific relationships of sleep behaviors with all-cause mortality rates. Methods A retrospective cohort study was conducted among 5288 adults (≥50 years) from the 2005–2008 National Health and Nutrition Examination Surveys who were followed-up for 54.9 ± 1.2 months. Sleep duration was categorized as < 7 h, 7–8 h and >8 h. Two sleep quality indices were generated through factor analyses. ‘Help-seeking behavior for sleep problems’ and ‘diagnosis with sleep disorders’ were defined as yes/no questions. Sociodemographic covariates-adjusted Cox regression models were applied to estimate hazard ratios (HRs) and 95% confidence intervals (CIs). Results A positive relationship was observed between long sleep and all-cause mortality rate in the overall sample (HR = 1.90, 95% CI: 1.38, 2.60), among males (HR = 1.48, 95% CI: 1.05, 2.09), females (HR = 2.32, 95% CI: 1.48, 3.61) and elderly (≥65 years) people (HR = 1.80, 95% CI: 1.30, 2.50). ‘Sleepiness/sleep disturbance’ (Factor I) and all-cause mortality rate were positively associated among males (HR = 1.22, 95% CI: 1.03, 1.45), whereas ‘poor sleep-related daytime dysfunction’ (Factor II) and all-cause mortality (HR = 0.75, 95% CI: 0.62, 0.91) were negatively associated among elderly people. Conclusions Sex- and age-specific relationships were observed between all-cause mortality rate and specific sleep behaviors among older adults.

Original languageEnglish (US)
Pages (from-to)141-151
Number of pages11
JournalSleep Medicine
Volume36
DOIs
StatePublished - Aug 1 2017

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Keywords

  • Age
  • Cohort study
  • Mortality
  • Sex
  • Sleep
  • Surveillance

ASJC Scopus subject areas

  • Medicine(all)

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