title: Associations of overall sedentary time and screen time with sleep outcomes.
abstract: OBJECTIVE
  To examine associations of accelerometer-assessed sedentary time and self-reported screen time with sleep outcomes.
  
  
  METHODS
  Cross-sectional study of 1674 adults from the 2005-2006 US National Health and Nutrition Examination Survey. Accelerometers were used to assess sedentary time. Screen time and sleep metrics were assessed via self-report.
  
  
  RESULTS
  Accelerometer-assessed sedentary time was not associated with sleep outcomes. Compared to participants with the least screen time (<2h/ day), participants with the most screen time (>6h/day) were more likely to report trouble falling asleep (OR = 2.78, 95% CI: 1.21, 6.40) and wake during the night (OR = 2.55, 95% CI: 1.17, 5.52).
  
  
  CONCLUSIONS
  With respect to sleep outcomes, context-specific sedentary behaviors may be more important than overall sedentary time.
authors.affiliation: Athabasca University, Faculty of Health Disciplines, Athabasca, Alberta, Canada. jeffv@athabascau.ca.
authors.forename: Jeff K
authors.initials: JK
authors.lastname: Vallance
authors.affiliation: Arizona State University, School of Nutrition and Health Promotion, Phoenix, AZ, USA.
authors.forename: Matthew P
authors.initials: MP
authors.lastname: Buman
authors.affiliation: Loughborough University, School for Sport, Exercise & Health Sciences, Loughborough, UK.
authors.forename: Clare
authors.initials: C
authors.lastname: Stevinson
authors.affiliation: Baker IDI Heart and Diabetes Institute, Melbourne, Australia.
authors.forename: Brigid M
authors.initials: BM
authors.lastname: Lynch
mesh_terms: D003201:Computers; D003430:Cross-Sectional Studies; D005260:Female; D015438:Health Behavior; D006801:Humans; D008297:Male; D008875:Middle Aged; D009749:Nutrition Surveys; D057185:Sedentary Behavior; D057566:Self Report; D007319:Sleep Initiation and Maintenance Disorders / Q000523:psychology*; D013690:Television; D014481:United States; D018910:Video Games / Q000009:adverse effects*