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Association of Sleep Duration with Weight Gain and General and Central Obesity Risk in Chinese Adults: A Prospective Study
Author(s) -
Ning Xuejuan,
Lv Jun,
Guo Yu,
Bian Zheng,
Tan Yunlong,
Pei Pei,
Chen Junshi,
Yan Shichuan,
Li Huimei,
Fu Zhifang,
Chen Yiping,
Du Huaidong,
Chen Zhengming,
Yu Canqing,
Li Liming
Publication year - 2020
Publication title -
obesity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.438
H-Index - 199
eISSN - 1930-739X
pISSN - 1930-7381
DOI - 10.1002/oby.22713
Subject(s) - medicine , obesity , odds ratio , weight gain , logistic regression , prospective cohort study , odds , body mass index , demography , body weight , sociology
Objective Evidence on the association between sleep duration and obesity among adults is inconsistent. Prospective studies investigating the association in Chinese adults have been limited. This study aims to prospectively evaluate sleep duration in relation to subsequent weight gain and general and central obesity risk among Chinese adults. Methods A total of 21,958 participants aged 30 to 79 years reported their daily sleep duration. Obesity indicators were objectively measured; then significant weight gain (≥ 5 kg) and general and central obesity were modeled as the outcome. Logistic regression models were used to estimate odds ratios and 95% CIs. Results Average sleep duration was 7.5 hours at baseline. During 8.0 ± 0.8 years of follow‐up, participants who reported sleeping ≤ 6 hours had higher risk for significant weight gain than those who slept 7 hours (multivariable‐adjusted odds ratio: 1.13; 95% CI: 1.02‐1.29). The association was stronger among those who were physically inactive at baseline ( P = 0.04 for interaction). Short sleep duration was also associated with subsequent incident central obesity, with odds ratio of 1.13 (95% CI: 1.00‐1.28), but not with incident general obesity ( P = 0.31). Conclusions Compared with those who slept 7 hours per day, short sleepers had an increased risk of significant weight gain and central obesity.