title: [Sleep duration and functional limitations in older adult].
abstract: OBJECTIVE
  To examine the association between sleep duration and functional limitation in older adults from Spain.
  
  
  METHODS
  Cross-sectional study with 3,708 individuals representative of the non-institutionalized population aged ≥ 60 years in Spain. Sleep duration was self-reported, and the functional limitations in the instrumental activities of daily living (IADL) were assessed.
  
  
  RESULTS
  Functional limitations in IADL were identified in 1,424 (38.4%) participants. In analyses adjusted for sociodemographic and lifestyle variables, the percentage of participants with limitation in IADL was higher in those who slept ≤ 5 hours (odds ratio [OR]=1.56; 95% confidence interval [CI]=1.18-2.06) or ≥ 10 hours (OR=2.08; 95%CI=1.67-2.60; p for trend<0.001) than in those who slept 8 hours. The association between long sleep (≥ 10 hours) and functional limitations held even after adjustment for comorbidity and sleep quality (OR=1.77; 95%CI=1.38-2.28) while the association between short sleep (≤ 5 hours) and functional limitation no longer held after this adjustment (OR=1.10; 95%CI=0.80-1.50).
  
  
  CONCLUSIONS
  In older adults, long sleep duration is a marker of functional limitations independent of comorbidity.
authors.affiliation: Departamento de Medicina Preventiva y Salud Pública, Facultad de Medicina, Universidad Autónoma de Madrid/IdiPAZ, Madrid, España.
authors.forename: Arthur
authors.initials: A
authors.lastname: Eumann Mesas
authors.forename: Esther
authors.initials: E
authors.lastname: López-García
authors.forename: Fernando
authors.initials: F
authors.lastname: Rodríguez-Artalejo
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012890:Sleep; D013997:Time Factors
vernacular_title: Duración del sueño y limitación funcional en adultos mayores.