Full Citation

Title: Sleep duration and BMI in a sample of young adults

Citation Type: Journal Article

Publication Year: 2012

ISBN: 1930-7381

ISSN: 19307381

DOI: 10.1038/oby.2011.381

NSFID:

PMCID: PMC3406736

PMID: 22282051

Abstract: We examined the association between sleep duration and BMI in young adults, and, specifically, in possible gender differences. The population-based sample included 955 young men and 1051 young women (mean age = 25.3 years, s.d. = 1.7) who participated in Project EAT-III (Eating and Activity in Teens and Young Adults)-III. In 2008-2009, study participants completed a survey, on which they reported their weight, height, and typical bed and awakening times. Gender-specific regression models estimated cross-sectional associations between sleep duration and weight status, adjusting for age, race, SES, family structure, depressive symptoms, physical activity, and sedentary and dietary behaviors. In multivariable-adjusted linear regression models, an hour increase in sleep was associated with a -0.38 (-0.70, -0.048) BMI in men. Men who slept <7 h had a 1.4 unit higher mean BMI (27.9; 95% confidence interval (CI): 26.9, 28.9) than men who slept 7-9 h/day (26.5; 95% CI: 26.1, 27.0). Prevalence estimates of overweight (BMI ≥25) and obesity (BMI ≥30) were also inversely associated with sleep duration among men. Sleep duration was not associated with BMI, overweight, or obesity in women. Among women, but not men, there was a statistically significant positive association between trouble falling or staying asleep and mean BMI. Sleep may be an important modifiable risk factor for obesity, particularly in young adult men.

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Authors: Meyer, Katie A; Wall, Melanie M; Larson, Nicole I; Laska, Melissa Nelson; Neumark-Sztainer, Dianne

Periodical (Full): Obesity

Issue: 6

Volume: 20

Pages: 1279-1287

Countries: