上海市6～18岁少儿肥胖患病率调查

目的　研究上海市 6～ 18岁年龄组的儿童青少年肥胖和超重患病率情况。　方法　采用整群系统抽样的方法随机抽取上海市区、郊区各一个区 ,普查区内所有中小学学生共 6 5 0 0 6名 (郊区 4 0 310名 ,市区 2 4 6 96名 )的身高、体重。以体质指数 (BMI)评价调查对象的肥胖患病率 ,并比较标化患病率的差异。　结果　 (1)调查对象肥胖粗患病率为 3 5 8% ,超重标化患病率为 3 30 % ;超重粗患病率达 13 2 5 % ,标化患病率为 12 95 %。 (2 )总体上肥胖和超重的标化患病率市区显著高于郊区 (肥胖 :P <0 0 0 1,超重 :P <0 0 0 1) ;女性的发病率显著低于男性 (肥胖 :P <0 0 0 1,超重 :P <0 0 0 1)。 (3)肥胖和超重患病率随年龄增加显著减低 (P <0 0 0 1)。　结论　本组的肥胖患病率稍高于我国 1996年全国性调查的 0～ 7岁组儿童肥胖患病率 ,远低于美国上世纪 90年代末期的水平 ;各年龄组肥胖患病率随年龄增加而逐渐减低 ,与西方发达国家青少年肥胖患病率随年龄增加而增高的趋势有显著的不同。

The prevalence of obesity in Shanghai children and adolescents aged 6-18 years

Objective To investigate the prevalence of obesity in Shanghai children and adolescents aged 6 18 years Methods One district in Shanghai urban area and one district in suburb area were randomly selected 65006 students (suburb area, 40310;urban area, 24696) all in the primary schools, junior and senior high schools were screened Body weights were evaluated by body mass index Results (1) The crude prevalence of obesity was 3 58% and standardized prevalence was 3 30% The crude prevalence of overweight was 13 25% and standardized prevalence was 12 95% (2) The prevalences of obesity and overweight were significantly higher in urban district than in suburb area (obesity: P <0 001, overweight: P <0 001) and also were significantly higher in male than in female (obesity: P <0 001,overweight: P <0 001) (3) The prevalences of both obesity and overweight decreased with the increasing of age ( P <0 001) Conclusion The overall prevalence of obesity in this study was slightly higher than that of the national obesity study among the 0 7 years old children in 1996, the prevalence of obesity was far lower than that of American children and adolescents in the late 1990s The prevalence of obesity was decreased with the age increasing, which is different from the obesity trend in the western countries