TY  - JOUR
PY  - 2015//
TI  - Sleep duration associated with body mass index among Chinese adults
JO  - Sleep Medicine
A1  - Sun, Wenjie
A1  - Huang, Yuee
A1  - Wang, Zengzhen
A1  - Yu, Yaqin
A1  - Lau, Abby
A1  - Ali, Gholam
A1  - Huang, Ping
A1  - Geng, Yunlong
A1  - Xu, Tan
A1  - Shan, GuangLiang
SP  - 612
EP  - 616
VL  - 16
IS  - 5
N2  - OBJECTIVE: The objective of this study was to investigate the relationship between sleep duration and obesity among Chinese adults. <br><br>METHODS: A community-based cross-sectional study was conducted among Chinese adults in 2008. In total, 3225 participants were selected by a multistage cluster sampling method. Self-reported sleep duration was measured by a standardized questionnaire. Logistic regression models were used to estimate the odds ratios (ORs) (95% confidence intervals, CIs) of obesity with sleep duration, separated by gender, and adjusted for age, education, occupation, marriage, smoking, drinking, body pain, and health status. <br><br>RESULTS: The mean sleep duration was 7.8 h. Among the 2962 participants, 7.2% had short sleep duration (≤6 h/day). There were 171 obese participants (5.7%) in this population. After adjustment for age, short sleep duration (<6 h) was significantly associated with obesity among men (OR: 2.15; 95% CI: 1.193.90), but not among women; additional adjustment for potential confounders did not attenuate the association among men. Increasing sleep duration (a continuous variable) was significantly and negatively associated with obesity in women after adjustment for education level, occupation, marital status, smoking, drinking, body pain, and health status. The adjusted OR per-hour increase in sleep duration was 0.74 (0.56-0.97) for obesity, suggesting that for a 1-h increase in sleep duration among women, obesity risk decreased by 26%. <br><br>CONCLUSION: Short sleep duration was associated with increasing obesity in Chinese men, and sleep duration was associated with obesity in Chinese women, although the underlying mechanism is unclear. This possible gender difference warrants further studies.<p />  <p>Language: en</p>
LA  - en
SN  - 1389-9457
UR  - http://dx.doi.org/10.1016/j.sleep.2014.12.011
ID  - ref1
ER  -