| Titre : | A Large Prospective Investigation of Sleep Duration, Weight Change, and Obesity in the NIH-AARP Diet and Health Study Cohort (2013) |
| Auteurs : | . QIAN XIAO ; Nutritional Epidemiology Branch. Division of Cancer Epidemiology and Genetics. National Cancer Institute, National Institutes of Health (Rockville MD, Etats-Unis) ; Hannah AREM ; Steven-C MOORE ; Albert-R HOLLENBECK ; Charles-E MATTHEWS |
| Type de document : | Article |
| Dans : | American journal of epidemiology (vol. 178, n° 11) |
| Pagination : | 1600-1610 |
| Langues: | Anglais |
| Mots-clés : | Obésité ; Etude prospective ; Sommeil ; Durée ; Poids corporel ; Régime alimentaire ; Epidémiologie |
| Résumé : | [BDSP. Notice produite par INIST-CNRS R0x8mpGA. Diffusion soumise à autorisation]. 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, bêta=0.66,95% confidence interval (Cl) : 0.19,1.13, and for 5-6 hours, bêta=0.12,95% Cl : - 0.02,0.26 ; women : for<5 hours, bêta=0.43,95% Cl : 0.00,0.86, and for 5-6 hours, bêta=0.23,95% Cl : 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% Cl : 1.06,1.99 ; for women, odds ratio=1.37,95% Cl : 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. |
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