海口市7~14岁儿童腰围界值点及其肥胖相关性分析

目的分析海口市7~14岁儿童在超重和肥胖层面的腰围界值点,为儿童超重和肥胖防治策略制定提供科学依据。方法利用2016—2019年“海南省学生健康档案管理系统”,采用PPS抽样方法抽取海口220所中小学校,对学校整群抽样7~14岁儿童调取身高、体重和腰围数据进行整理分析。结果共计分析283054名7~14岁儿童,各年龄组儿童的平均腰围值和百分位点腰围值均低于全国平均腰围,腰围均随着年龄增长而持续增加。各年龄组儿童腰围男生均大于女生(P<0.0001),城市均高于农村(P<0.0001)。在超重层面,男童和女童界值点集中P 75~P 80(56.50~71.75 cm)、P 80~P 85(54.50~68.50 cm)。在肥胖层面,男童7~11岁和12~14岁的界值点分别是P 85(58.5~72.50 cm)、P 90(75.50~79.50 cm),女生7岁和8~14岁的界值点范围在分别是P 85(56.50 cm)和P 90(59.85~71.50 cm)。结论该地区在超重层面,男童和女童的界值点分别为56.50~71.75 cm和54.50~68.50 cm;肥胖层面,男童和女童的界值点分别是58.50~79.50 cm和56.50~71.50 cm。除了男生7岁和女生9岁超重界值点及女生青春期前8~10岁肥胖界值点外,其他各年龄组超重和肥胖界值点与全国的一致。

Waist circumference cut-off points in children aged 7-14 years and its correlation with obesity in Haikou

Objective To analyze the cut-off point of waist circumference(WC)for overweight and obesity in school children aged 7-14 in Haikou,and to provide a scientific basis for the formulation of prevention and treatment strategies for overweight and obesity in children.Methods Using the 2016-2019“Student Health Record Management System in Hainan Province”,220 primary and secondary schools in Haikou were sampled using the PPS sampling method,and the height,weight and waist circumference of children aged 7-14 were collected and analyzed.Results A total of 283054 children aged 7-14 years old were investigated.The average WC and percentile WC values of children in each age group were lower the national average WC values,and the WC continued to increase with age.The WC of boys was higher than that of the girls in all age groups(P<0.0001),and the WC of urban children was higher than that of rural children of the same age(P<0.0001).The WC cut-off points were P75-P80(56.50-71.75 cm)in boys and P80-P85(54.50-68.50 cm)in girls for overweight.For obesity,the WC cut-off points in boys of 7-11 years old and 12-14 years old were P85(58.5-72.50 cm)and P90(75.50-79.50 cm),respectively,and the WC cut-off points in girls of 7 years old and 8-14 years old were P85(56.50 cm)and P90(59.85-71.50 cm),respectively.Conclusion The cut-off points of WC for overweight are 56.50-71.75 cm in boys and 54.50-68.50 cm in girls,respectively.The cut-off points of WC for obesity are 58.50-79.50 cm in boys and 56.50-71.50 cm in girls,respectively.Except for the cut-off points for overweight in 7-year-old boys and 9-year-old girls and the cut-off points for obesity in 8 to 10-year-old girls before puberty,the cut-off points for overweight and obesity in other age groups are consistent with the national values.