Report on Childhood Obesity in China (10): Association of Sleep Duration with Obesity

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• 作者：Li Ping MENG^aAuthor Vitae ; Ai Ling LIU^a ; Xiao Qi HU^a ; Qian ZHANG^a ; Song Ming DU^a ; Hong Yun FANG^a ; Jun MA^b ; ^§ ; ; Gui Fa XU^c ; ^§ ; ; Ying LI^d ; ^§ ; ; Hong Wei GUO^e ; ^§ ; ; Lin DU^f ; ^§ ; ; Guan Sheng MA^a ; ^{mags@chinacdc.cn}
• 关键词：Sleep duration ; Obesity ; Children ; China
• 刊名：Biomedical and Environmental Sciences
• 出版年：2012
• 出版时间：April, 2012
• 年：2012
• 卷：25
• 期：2
• 页码：133-140
• 全文大小：1K

文摘

4 class=""h4"">Objective4>To explore the association of sleep duration with obesity among children in urban areas of China.4 class=""h4"">Methods4>

A total of 6 576 children (3 293 boys and 3 283 girls) aged 7-11 years were randomly selected from 36 primary schools in 6 metropolitan cities in China. A 7-day Physical Activity Recall was used to assess the sleep duration and physical activity level. The height, weight, waist circumference (WC) and percentage of body fat ( % BF, as determined by bioelectrical impedance analysis technique) were measured by following the standardized operation procedures. The information on demography, lifestyle and eating habits was collected with a self-administered questionnaire from participants and their parents.4 class=""h4"">Results4>

The average sleep duration per night in the children was 9.7 h with the decreasing trends along with the increase of age (P<0.05). The sleep duration was negatively associated with body mass index (BMI) and WC in both boys and girls after adjustment for confounders (¦Â value ?0.23 and ?0.82 for boys, ?0.24 and ?0.91 for girls, respectively, P<0.01). However, no significant association of sleep duration with % BF was found. Children who slept less than 9.0 h per night had a higher risk for overweight and obesity (OR=1.29, 95 % CI: 1.01, 1.64) and abdominal obesity (OR=1.38, 95 % CI: 1.04, 1.83) as compared with those who slept for 10.0?10.9 h.4 class=""h4"">Conclusions4>

Short sleep duration is associated with obesity. It is important to ensure adequate sleep duration of children and foster their healthy lifestyle at an early stage of life.