Cappuccio, Francesco P., Taggart, Frances M., Kandala, Ngianga-Bakwin, Currie, Andrew, Peile, Ed, Stranges, Saverio and Miller, Michelle A., Dr.. (2008) Meta-analysis of short sleep duration and obesity in children and adults. Sleep, Vol.31 (No.5). pp. 619-626. ISSN 0161-8105

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Abstract

Background: Recent epidemiological studies suggest that short sleep duration may be associated with the development of obesity from childhood to adulthood. Objectives: To assess whether the evidence supports the presence of a relationship between short sleep duration and obesity at different ages, and to obtain an estimate of the risk. Methods: We performed a systematic search of publications using MEDLINE (1996-2007 wk 40), EMBASE (from 1988), AMED (from 1985), CINHAL (from 1982) and PsycINFO (from 1985) and manual searches without language restrictions. When necessary, authors were contacted. Criteria for inclusion were: report of duration of sleep as exposure, BMI as continuous outcome and prevalence of obesity as categorical outcome, number of participants, age, and gender. Results were pooled using a random effect model. Sensitivity analysis was performed, heterogeneity and publication bias were also checked. Results are expressed as pooled odds ratios (OR [95% confidence intervals, Cls]) and as pooled regression coefficients (0; 95% Cls). Results: Of 696 studies identified, 45 met the inclusion criteria (19 in children and 26 in adults) and 30 (12 and 18, respectively) were pooled in the meta-analysis for a total of 36 population samples. They included 634,511 participants (30,002 children and 604,509 adults) from around the world. Age ranged from 2 to 102 years and included boys, girls, men and women. In children the pooled OR for short duration of sleep and obesity was 1.89 (1.46 to 2.43; P < 0.0001). In adults the pooled OR was 1.55 (1.43 to 1.68; P < 0.0001). There was no evidence of publication bias. In adults, the pooled P for short sleep duration was -0.35 (-0.57 to -0.12) unit change in BMI per hour of sleep change. Conclusions: Cross-sectional, studies from around the world show a consistent increased risk of obesity amongst short sleepers in children and adults. Causal inference is difficult due to lack of control for important confounders and inconsistent evidence of temporal sequence in prospective studies.

Item Type:	Journal Article
Subjects:	Q Science > QP Physiology R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Divisions:	Faculty of Medicine > Warwick Medical School > Health Sciences Faculty of Medicine > Warwick Medical School > Mental Health and Wellbeing Faculty of Medicine > Warwick Medical School > Metabolic and Vascular Health Faculty of Medicine > Warwick Medical School
Library of Congress Subject Headings (LCSH):	Sleep -- Research, Sleep -- Age factors -- Analysis, Obesity -- Physiological effect -- Analysis, Meta-analysis
Journal or Publication Title:	Sleep
Publisher:	American Academy of Sleep Medicine
ISSN:	0161-8105
Date:	1 May 2008
Volume:	Vol.31
Number:	No.5
Number of Pages:	8
Page Range:	pp. 619-626
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
URI:	http://wrap.warwick.ac.uk/id/eprint/30144

Data sourced from Thomson Reuters' Web of Knowledge

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