Abstract: Purpose To analysis the current situation of overweight and obesity among children and adolescents range from 13 to 18 years old in Changsha city and to provide the basis of strategies and measures for controlling obesity. Methods Cross-sectional analyses of a represent sample (n=16 843) in Chinese children and adolescents from 13 to 18 years of age was derived from 12 middle schools and 12 high schools by a cluster sampling method.And the 16 843 students were measured heights and weights according to the requirements of WHO between September and December in 2009. Results In 2009,10.11% (1 703/16 843) of the children and adolescents from 13 to 18 years old were overweight and 4.98% (838/16 843) of children and adolescents were obese.The prevalence of overweight was 11.68% in males and 8.64% in females.The prevalence of obesity was 7.09% in males and 2.99% in females.There were different in overweight prevalence and obesity prevalence between males and females (χ²=42.89,149.73,P all <0.001).With increasing age,the prevalence of overweight increased in initial stage and then declined,while the prevalence of obesity showed an upward trend in males.With increasing age,the prevalence of overweight was on the rise and the prevalence of obesity increased in initial stage and then declined in females. Conclusions The prevalence of overweight and obesity from 13 to 18 years of age is high in Changsha city and the prevalences of overweight and obesity are higher in males than in females.Therefore,strategies and measures should be combined with the family,nursery kindergarten or school and community in order to control obesity.

Key words: children, adolescents, overweight, obesity

摘要： 目的 了解长沙市12~18岁青少年的超重和肥胖的流行现状,认识青少年肥胖问题的严峻性,为制定控制肥胖的干预措施提供参考依据。方法 2009年9-12月期间采用整群抽样的方法随机抽取长沙市12所中学和12所高中,共纳入13～18岁中学生16 843名,并按照WHO的要求测量体重和身高。结果 本次研究的中学生共16 843名,超重人数1 703名,超重率为10.11%,肥胖人数838,肥胖率为4.98%,其中男女生超重率分别为952/8 149(11.68%)和751/8 694(8.64%),男女生肥胖率分别为578/8 149(7.09%)和260/8 694(2.99%)。不同性别儿童超重率和肥胖率差异均有统计学意义(χ²=42.89,149.73,P均<0.001)。随着年龄增长男生超重率呈现先增加后下降的趋势,肥胖率一直呈现增加的趋势。女生超重率随着年龄增长呈现增加趋势,肥胖率呈现先增加后降低的趋势。结论 长沙市13～18岁儿童青少年超重和肥胖率高,存在性别差异,应该动员家庭、幼儿园/学校、社区在内的所有相关群体采取综合干预措施,减少肥胖发生。

关键词: 儿童, 青少年, 超重, 肥胖