Objective To investigate the prevalence and influencing factors of childhood simple obesity in pre-school children in our city,so as to provide scientific evidence for formulating effective interventions. Methods Using stratified cluster sampling physical development of 3- to 6-year old children in our city and parents of all obese and overweight children were surveyed by questionnaires. Results The prevalence rate of obesity in pre-school children in the city was 9.00％. The prevalence rate of boys was 9.78％ and that of girls was 8.16％ , and the difference was statistically significant (X2= 4.50, P ＜ 0.05 ). Among the obese children, mild obesity accounted for 52.57％ , moderately obese accounted for 37.35％ , and severe obesity accounted for 10.08％. The prevalence rates in different age groups were different. The incidence of overweight was 14.71％. For boys, it was 15.76％ , and for girls, it was 13.57％. The difference was statistically significant (X2=5. 354 ,P ＜ 0.05 ). The main factors of infiluencing childhood obesity were parental obesity, mixed feeding mainly with non-breast milk in infancy stage, good appetite, eating too fast, eating too much, having less than one-hour outdoor exercise,and the intentions of parents who want their children to be strong. Conclusion Obesity becomes a serious problem affecting children' s health in our city. Health education should be the major way and improving children' s bad eating habits and unhealthy lifestyle is the major task in group intervention.%目的 了解我市学龄前儿童单纯性肥胖症的患病状况及影响因素,为制定有效的干预措施提供科学依据.方法 采用分层整群抽样的方法,对我市城区3～6岁学龄前儿童进行体格发育调查,对所有肥胖和超重儿童家长进行问卷调查.结果 我市学龄前儿童单纯性肥胖症患病率为9.00%,男童患病率为9.78%,女童患病率为8.16%,经比较差异具有统计学意义(χ2=4.50,P<0.05).其中轻度肥胖占52.57%,中度肥胖占37.35%,重度肥胖占10.08%,不同年龄组患病率不同.超重检出率为14.71%.其中为15.76%,女童为13.57%,差异有统计学意义(χ2=5.354;P<0.05).影响儿童肥胖的主要因素与父母亲肥胖、婴儿期非母乳为主的混合喂养、孩子食欲好、进食快、进食量多、每天进行户外活动时间小于1小时,家长希望孩子胖等因素有关.结论 肥胖已成为影响我市儿童健康的一个严重问题,群体干预以健康教育为主要方式,以改善儿童不良饮食习惯及生活方式为主要内容.
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