Associated Trends in Sedentary Behavior and BMI Among Chinese School Children and Adolescents in Seven Diverse Chinese Provinces

作者：Zhang Juan^*; Seo Dong Chul; Kolbe Lloyd; Middlestadt Susan; Zhao Wenhua

来源：International Journal of Behavioral Medicine, 2012, 19(3): 342-350.

DOI：10.1007/s12529-011-9177-2

• Sedentary behavior
• Children
• Adolescents
• Trends
• China

Overweight and obesity is becoming a public health concern in China.
We examined associated trends in sedentary behavior and body mass index (BMI) among school children and adolescents from seven diverse Chinese provinces from 1997 to 2004.
Sequential multiple regressions were conducted with combined cross-sectional data derived from the China Health and Nutrition Survey (N = 5,497) to assess relationships between sedentary behavior and BMI.
Between 1997 and 2004, the amount of time children (6- to 11-year-olds) spent engaging in sedentary behavior increased from 1.71 to 3.14 h/day (p < 0.05), while the amount of time adolescents (12- to 18-year-olds) spent engaging in sedentary behavior increased from 1.71 to 3.50 h/day (p < 0.05). Studying before and after school and watching TV/videos each accounted for about half the increase in sedentary behavior. Both watching TV/videos and studying before and after school were significantly and positively associated with BMI in males, but not in females.
With the growing amount of time Chinese school children and adolescents study outside of school and watch TV/videos, Chinese youth are increasingly likely to become more overweight unless population-based prevention actions are taken.

• 出版日期2012-9
• 单位中国疾病预防控制中心