金华市城乡中小学生超重和肥胖现状

Prevalence of overweight and obesity among primary and middle school students in Jinhua urban and rural area

目的了解金华市城乡中小学生超重和肥胖现状,为后续的肥胖防治和干预工作提供依据。方法对整群随机抽取的金华市城乡3 085名中小学生,测量身高、体重,计算体质量指数（BMI）,根据《中国学龄儿童超重、肥胖筛查BMI值分类标准》判定学生超重、肥胖。结果 3 085名中小学生中,超重检出率为11.57%,肥胖检出率为4.34%;7~11岁学生的超重和肥胖检出率较高,11岁时达到峰值,11岁后超重和肥胖检出率开始下降。男生超重和肥胖的检出率都显著高于女生;城市中小学生的超重率高于乡村,但乡村中小学生的肥胖率却高于城市,差异均有统计学意义（P值均〈0.01）。结论超重和肥胖现象己经开始步入乡村。青春前期和青春期是超重和肥胖的高危时期。

Objective To understand the current situation of overweight and obesity among primary and secondary school students in Jinhua city,and to provide basic information for obesity prevention and intervention.Methods Body mass index（BMI） was calculated for 3 085 primary and secondary school students in Jinhua city.Overweight and obesity was diagnosed based on BMI.Results In all the 3 085 students,prevalence of overweight and obesity was 11.57% and 4.34%,respectively.Rates of overweight and obesity were highest during age 7 to 11 years old;it began to decrease after age 11 year old.Both overweight and obesity was found more in boys and urban areas.Urban students were more likely to be overweight;however,rural students were more likely to be obese.Conclusion Much concern has been generated about the increasing incidence of obesity among rural areas.Puberty might be critical period for overweight and obesity intervention.