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目的了解浙江省温州市小学生超重肥胖的流行现状,探讨肥胖的危险因素。方法采用多阶段分层整群抽样的方法抽取9035例温州市小学生进行体格检查,选取其中369例肥胖儿童作为病例组,并配以同班级同性别的正常体重学生389例作为对照组,开展病例-对照研究,进行膳食、身体活动方式等相关因素的Logistic回归分析。结果温州市小学生总体超重率和肥胖率分别为11.2%和6.4%,男性高于女性(P<0.05)。蔬菜摄入频率高、奶类及其制品摄入频率高、每日运动时间长和每日睡眠时间充足分别为肥胖的保护性因素(多因素Logistic回归分析,OR值分别为0.765、0.807、0.702和0.552,P值分别为0.034、0.024、0.020和0.005),每日静坐时间则为危险因素(OR=1.602,P=0.003)。结论温州市小学生超重肥胖发病率较高,其因素与饮食和身体活动方式密切相关。
Objective To understand the prevalence of overweight and obesity in primary school students in Wenzhou City, Zhejiang Province, and to explore the risk factors of obesity. Methods A total of 9035 Wenzhou primary school students were selected for physical examination by multi-stage stratified cluster sampling. 369 obese children were selected as the case group and 389 normal-weight, same-class, normal-weight students as the control group. - Logistic regression analysis of related factors such as diet, physical activity and so on. Results The overall rates of overweight and obesity in primary school students in Wenzhou were 11.2% and 6.4%, respectively, higher in males than in females (P <0.05). High frequency of vegetable intake, high frequency of intake of dairy products and their products, daily exercise time and daily sleep time were protective factors for obesity (multivariate Logistic regression analysis, OR values were 0.765,0.807,0.702 And 0.552, P values were 0.034, 0.024, 0.020 and 0.005, respectively). Daily sitting time was a risk factor (OR = 1.602, P = 0.003). Conclusion The prevalence of overweight and obesity in primary school students in Wenzhou City is high, and its factors are closely related to diet and physical activity.