Stranges, Saverio, Dorn, Joan M., Shipley, Martin J., Kandala, Ngianga-Bakwin, Trevisan, Maurizio, Miller, Michelle A., Donahue, Richard P., Hovey, Kathleen M., Ferrie, Jane E., Marmot, Michael G. and Cappuccio, Francesco (2008) Correlates of short and long sleep duration : a cross-cultural comparison between the United Kingdom and the United States. The Whitehall II study and the Western New York health study. American Journal of Epidemiology, Vol.168 (No.12). pp. 1353-1364. doi:10.1093/aje/kwn337 ISSN 0002-9262.

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Abstract

The authors examined sociodemographic, lifestyle, and comorbidity factors that could confound or mediate U-shaped associations between sleep duration and health in 6,472 United Kingdom adults from the Whitehall 11 Study (1997-1999) and 3,027 US adults from the Western New York Health Study (1996-2001). Cross-sectional associations between short (< 6 hours) and long (> 8 hours) durations of sleep across several correlates were calculated as multivariable odds ratios. For short sleep duration, there were significant, consistent associations in both samples for unmarried status (United Kingdom: adjusted odds ratio (AOR) = 1.49, 95% confidence interval (CI): 1.15,1.94; United States: AOR - 1.49, 95% CI: 1.10, 2.02), body mass index (AORs were 1.04 (95% CI: 1.01, 1.07) and 1.02 (95% CI: 1.00, 1.05)), and Short Form-36 physical (AORs were 0.96 (95% CI: 0.95, 0.98) and 0.97 (95% CI: 0.96, 0.98)) and mental (AORs were 0.95 (95% CI: 0.94, 0.96) and 0.98 (95% CI: 0.96, 0.99)) scores. For long sleep duration, there were fewer significant associations: age among men (AORs were 1.08 (95% CI: 1.01, 1.14) and 1.05 (95% CI: 1.02,1.08)), low physical activity (AORs were 1.75 (95% CI: 0.97, 3.14) and 1.60 (95% CI: 1.09, 2.34)), and Short Form-36 physical score (AORs were 0.96 (95% CI: 0.93, 0.99) and 0.97 (95% CI: 0.95, 0.99)). Being unmarried, being overweight, and having poor general health are associated with short sleep and may contribute to observed disease associations. Long sleep may represent an epiphenomenon of comorbidity.

Item Type:	Journal Article
Subjects:	H Social Sciences > HM Sociology Q Science > QP Physiology R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine
Divisions:	Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Health Sciences > Population, Evidence & Technologies (PET) > Warwick Evidence Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Health Sciences Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School
Library of Congress Subject Headings (LCSH):	Sleep -- Research, Comorbidity -- Cross-cultural studies, Epidemiology -- Cross-cultural studies, Sleep -- Cross-cultural studies, Lifestyles -- Great Britain -- Case studies, Lifestyles -- United States -- Case studies
Journal or Publication Title:	American Journal of Epidemiology
Publisher:	Oxford University Press
ISSN:	0002-9262
Official Date:	15 December 2008
Dates:	Date Event 15 December 2008 Published
Volume:	Vol.168
Number:	No.12
Number of Pages:	12
Page Range:	pp. 1353-1364
DOI:	10.1093/aje/kwn337
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Medical Research Council (Great Britain) (MRC), British Heart Foundation, Great Britain. Health and Safety Executive, United Kingdom Department of Health, National Heart, Lung, and Blood Institute (U.S.) (NHLBI), National Institute on Aging (NIA), United States. Agency for Health Care Policy and Research, John D. and Catherine T. MacArthur Foundation series on mental health and development. Studies on successful midlife development, National Institute on Alcohol Abuse and Alcoholism (U.S.), National Institutes of Health (U.S.)
Grant number:	HL36310 (NHBLI), AG13196 (NIA), HS06516 (AHCPR), 5 P50 AA09802 (NIAAA), NIH R01 DK60587 (NIH), G8802774 (MRC)

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