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A large prospective investigation of sleep duration, weight change, and obesity in the NIH-AARP Diet and Health Study cohort.

ABSTRACT: The relationship between sleep and obesity or weight gain in adults, particularly older populations, remains unclear. In a cohort of 83,377 US men and women aged 51-72 years, we prospectively investigated the association between self-reported sleep duration and weight change over an average of 7.5 years of follow-up (1995-2004). Participants were free of cancer, heart disease, and stroke at baseline and throughout the follow-up. We observed an inverse association between sleep duration per night and weight gain in both men (P for trend = 0.02) and women (P for trend < 0.001). Compared with 7-8 hours of sleep, shorter sleep (<5 hours or 5-6 hours) was associated with more weight gain (in kilograms; men: for <5 hours, ? = 0.66, 95% confidence interval (CI): 0.19, 1.13, and for 5-6 hours, ? = 0.12, 95% CI: -0.02, 0.26; women: for <5 hours, ? = 0.43, 95% CI: 0.00, 0.86, and for 5-6 hours, ? = 0.23, 95% CI: 0.08, 0.37). Among men and women who were not obese at baseline, participants who reported less than 5 hours of sleep per night had an approximately 40% higher risk of developing obesity than did those who reported 7-8 hours of sleep (for men, odds ratio = 1.45, 95% CI: 1.06, 1.99; for women, odds ratio = 1.37, 95% CI: 1.04, 1.79). The association between short sleep and excess weight gain was generally consistent across different categories of age, educational level, smoking status, baseline body mass index, and physical activity level.

SUBMITTER: Xiao Q

PROVIDER: S-EPMC3842900 | biostudies-other | 2013 Dec

REPOSITORIES: biostudies-other

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A large prospective investigation of sleep duration, weight change, and obesity in the NIH-AARP Diet and Health Study cohort.

Xiao Qian Q Arem Hannah H Moore Steven C SC Hollenbeck Albert R AR Matthews Charles E CE

American journal of epidemiology 20130918 11

The relationship between sleep and obesity or weight gain in adults, particularly older populations, remains unclear. In a cohort of 83,377 US men and women aged 51-72 years, we prospectively investigated the association between self-reported sleep duration and weight change over an average of 7.5 years of follow-up (1995-2004). Participants were free of cancer, heart disease, and stroke at baseline and throughout the follow-up. We observed an inverse association between sleep duration per night ...[more]

PMID: 24049160

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Project description:Background/objectivesThe purpose of this study was to determine the joint associations of weight status and physical activity with mobility disability in older men and women.Subjects/methodsWe analyzed prospective data from 135,220 participants in the NIH-AARP Diet and Health Study between 1995-1996 and 2004-2005.MethodsHeight and weight, as well as light- and moderate-to-vigorous-intensity physical activity typical of the past 10 years (h/week) were self-reported at baseline, and body mass index (BMI: kg/m2) was categorized into normal weight (BMI 18 to <25 kg/m2); overweight (BMI 25 to <30 kg/m2); and obese (BMI ≥ 30 kg/m2). Mobility was assessed by self-report at follow-up and mobility disability was defined as reporting "unable to walk" or an "easy usual walking pace (<2 mph)". Multivariable logistic regression determined the independent and joint associations of weight status and total physical activity with the odds of mobility disability.ResultsTwenty-one percent of men and 37% of women reported a mobility disability at follow-up. We observed a curvilinear dose-response association between increasing categories of weight status and mobility disability within each tertile of physical activity, with the highest odds experienced by men and women with overweight (OR = 2.45; 95%CI: 2.25, 2.67 for men and OR = 2.99; 95%CI: 2.78, 3.22 for women) and obesity (OR = 3.93; 95%CI: 3.58, 4.32 for men and OR = 5.08; 95% CI: 4.65, 5.54 for women) in combination with low physical activity. Moreover, among those reporting 7 or fewer hours/week of total physical activity, being of normal body weight did not eliminate the excess odds of mobility disability.ConclusionsThese findings highlight the combined importance of obesity prevention and physical activity promotion to mobility in older age. Given aging demographics and the global economic burden associated with aging- and disuse-related disability, there is tremendous public health benefit to understanding how various modifiable determinants of mobility disability can interact in older age.

Dataset Information

A large prospective investigation of sleep duration, weight change, and obesity in the NIH-AARP Diet and Health Study cohort.

Publications

A large prospective investigation of sleep duration, weight change, and obesity in the NIH-AARP Diet and Health Study cohort.

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