目的 了解华东地区儿童超重及肥胖的分布特点,探讨基于微信平台收集数据的优缺点,为今后进行调查和制定有效的干预措施提供理论依据.方法 0～5岁儿童家长通过微信平台在线填写,19 793名儿童纳入分析,其中男童11 770例,女童8 023名,以2007年世界卫生组织推荐的身高标准体重值作为诊断超重和肥胖的指标.将本次调查儿童的超重和肥胖率与2006年中国九市超重和肥胖检出率进行比较.结果 本研究华东地区0～5岁儿童超重和肥胖检出率分别为10.1％和4.2％,男童肥胖的总检出率高于女童(x2=14.965,P＜0.001),尤其0～1岁和2～3岁男童肥胖的检出率均高于女童(x2 =9.528和14.066,P值均＜0.001),华东地区各年龄段儿童超重和肥胖的检出率均高于2006年中国九市水平.结论 华东地区0～5岁儿童超重和肥胖检出率较高,使用移动平台进行人群调查研究更快捷和简便.“,”Objective To understand the prevalence of overweight and obesity among children in the eastern China,and to explore the advantages and disadvantages of data collection based on WeChat in order to give support for the future investigation and effective intervention.Methods Parents of children aged 0～5 years filled the data on the WeChat platform.A total of 19 793 children in eastern China were selected in this study, including 11 770 boys and 8 023 girls.Weight for height obese criteria recommended by WHO in 2007 was used as the diagnostic indexes of overweight and obesity.The incidence rates of overweight and obesity among children were compared with the data in nine cities of China in 2006.Results The incidence rates of overweight and obesity among children aged 0～5 years in eastern China were respectively 10.1％ and 4.2％.The incidence rates of obesity among boys were higher than those among girls(x2 =14.965,P＜0.001).In 0～1-year-old group and 2～3-year-old group, the incidence rates of obesity among boys were higher than those among girls(x2 =9.528 and 14.066, all P＜0.001).The incidence rates of overweight and obesity among children in eastern China were higher than that in nine cities of China in 2006(P＜0.01).Conclusion The incidence rates of overweight and obesity among children aged 0～5 years in eastern China are high, and the utilization of mobile platforms for research is faster and more convenient.