title: Sleep quality and obesity in young subjects: a meta-analysis.
abstract: To assess the effect of poor sleep quality on Overweight/Obesity (Ow/Ob) in young subjects, and explore if this association is independent of sleep duration.
  
  
  
  Pubmed, EMBASE, and MEDLINE databases were searched for papers on sleep quality and overweight/obesity, focusing on children, adolescents, and young adults. Studies based on subjects with medical/psychological problems or published in languages other than English were excluded. Quality effects model was used to pool studies for meta-analysis.
  
  
  
  Findings from the systematic review suggest a link between poor sleep quality and Ow/Ob in young subjects. Pooled estimate (from 26,553 subjects) suggest a role of inadequate sleep (including both short duration and poor quality) in Ow/Ob (OR: 1.27 95% CI: 1.05-1.53). Sub-group-analyses suggest considerably higher odds of Ow/Ob (OR = 1.46, 95% CI: 1.24-1.72) in young subjects with poor sleep quality (independent of duration).
  
  
  
  Poor sleep quality seems to be associated with Ow/Ob, and some studies indicate this association to be independent of duration. Therefore, considering only sleep duration might not help in disentangling sleep-obesity association. However, this review is mostly composed of cross-sectional studies. Therefore, a causal link or the stability of the sleep quality and Ow/Ob association could not be established.
authors.affiliation: School of Public Health, University of Queensland, Brisbane, Queensland, Australia.|Mount Isa Centre for Rural and Remote Health, Mount Isa, James Cook University, Queensland, Australia.
authors.forename: Y
authors.initials: Y
authors.lastname: Fatima
authors.affiliation: Research School of Population Health, Australian National University, Canberra, ACT, Australia.|College of Medicine, Qatar University, Doha, Qatar.|School of Agricultural, Computing, and Environmental Sciences, University of Southern, Toowoomba, Queensland, Australia.
authors.forename: S A R
authors.initials: SA
authors.lastname: Doi
authors.affiliation: School of Public Health, University of Queensland, Brisbane, Queensland, Australia. a.mamun@uq.edu.au.
authors.forename: A A
authors.initials: AA
authors.lastname: Mamun
mesh_terms: D000293:Adolescent; D015992:Body Mass Index; D002648:Child; D003430:Cross-Sectional Studies; D006801:Humans; D063766:Pediatric Obesity / Q000209:etiology* / Q000503:physiopathology* / Q000517:prevention & control; D012307:Risk Factors; D012890:Sleep / Q000502:physiology*; D012892:Sleep Deprivation / Q000150:complications* / Q000503:physiopathology*; D011795:Surveys and Questionnaires; D013997:Time Factors
keywords: adolescents; children; inadequate sleep; obesity; overweight; sleep quality; young adults