Objective To investigate the simple obesity of children aged 3-6 in Heshan city,and explore the effect of related intervention countermeasure on reducing the occurrence of simple obesity of children. Methods From February to June 2013,4 large scale kindergartens from different regions of Heshan city were sampled,1500 children aged 3-6 were randomly selected as study objects from 4 kindergartens,and 240 children with simple obesity were screened ac-cording to the related obesity standard and randomly divided into control group (n=120) and intervention group (n=120). Control group was not given intervention measures,while intervention group was given related intervention measures. Results The detection rate of simple obesity was 16.0% (240/1500).The detection rate of simple obesity in boys (9.4%) was significantly higher than that of girls (6.6%) (P<0.05).The detection rate of simple obesity in 5-6 years group was significantly higher than that in 3-4 years group (P<0.05).The detection rate of simple obesity in intervention group af-ter intervention was significantly lower than that in control group (P<0.05). Conclusion Strengthening psychological and behavior intervention,changing children’s eating habits,strengthening physical exercise and other interventions can ef-fectively prevent and reduce the occurrence of childhood obesity,the effect is significant.%目的：调查鹤山市3~6岁儿童单纯性肥胖症情况，探究相关干预对策对减少儿童单纯性肥胖症发生的效果。方法2013年2~6月，从鹤山市不同区域抽取4所规模较大的幼儿园，在这4所幼儿园中随机选取3~6岁儿童1500例作为研究对象，根据相关肥胖标准筛选出单纯性肥胖症儿童240例，将其将其随机分成对照组和干预组，各120例。对照组不给予干预措施，干预组给予相关干预措施。结果单纯性肥胖症检出率为16.0%（240/1500）。男童单纯性肥胖症的检出率（9.4%）明显高于女童（6.6%）（P<0.05）。5~6岁组的单纯性肥胖症检出率明显高于3~4岁组（P<0.05）。干预组干预后的单纯性肥胖症检出率明显低于对照组（P<0.05）。结论加强心理和行为干预、改变儿童的饮食习惯、加强体育锻炼等多种干预措施能有效预防和减少儿童肥胖症的发生，效果显著。
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