贵阳市7～17岁少年儿童体质指数分布及超重肥胖状况

The prevalence of overweight and obesity and body mass index distribution among children aged 7 to 17 years in Guiyang city

目的了解贵阳市少年儿童体质指数分布及超重、肥胖状况,为儿童营养健康教育提供依据。方法采用整群随机抽样的方法抽取贵阳市7所中、小学7～17岁的8616名学生为研究对象,测量身高、体重,计算出体质指数百分位数值。以国际生命科学会中国肥胖问题工作组(WGOC)颁布的"中国学龄儿童青少年超重、肥胖筛查体质量指数值分类标准",对贵阳市少年儿童超重、肥胖状况进行筛查。结果与WGOC采用的以体质指数P85和P95作为超重和肥胖筛查标准相比,贵阳市男孩P85、P95值均有相对增高趋势,而女孩P85、P95值变化相对不明显;贵阳市少年儿童超重和肥胖总检出率为12.5%和6.8%,其中男孩分别为15.0%和8.4%,女孩分别为9.9%和5.2%,男孩超重、肥胖检出率均高于女孩(P均﹤0.01)。结论贵阳市超重肥胖儿童日益增多,应重视对儿童超重、肥胖的预防工作。

Objectives To study the prevalence of overweight and obesity and body mass index （ BMI） distribution among children aged 7 to 17 years in Guiyang city, and provide basic information on children＇s nutrition and health education. Methods A total of 8616 primary and middle school students aged 7 to 17 years in 7 schools in Guiyang city were selected by random group sampling. The weight and height were measured, and the BMI was calculated. The overweight and obesity children were screened by using the ＂BMI reference for screening overweight and obesity in Chinese children and adolescents＂ which was set up by the Working Group on Obesity in China （WGOC）. Results The P85 and P95 percentiles of BMI in boys showed a trend of increase compared with WGOC criteria for overweight and obesity, while the P85 and P95 percentile of BMI in girls indicated no change. The prevalence of overweight and obesity were 12.5% and 8.4% respectively （ 15.0% and 8.4% for boys, and 9.9% and 5.2% for girls） . The prevalence of overweight and obesity in boys were significantly higher than in girls （ P ﹤ 0.01） . Conclusions The prevalence of overweight and obesity in children in Guiyang city has increased progressively. More attention should be paid to prevent and control child overweight and obesity.