四川省7~18周岁城乡中小学生身高与体重发育现状LMS法分析  

Height and weight among 7–18 years old urban and rural primary and high school students in Sichuan province:a cross-sectional analysis with LMS method

作　　者：师春立 周亮[1] 张丽[1] 陈剑宇[1] SHI Chun-li;ZHOU Liang;ZHANG Li(Institute of Environmental and School Health and Disinfection,Sichuan Provincial Center for Disease Control and Prevention,Chengdu,Sichuan Province 610000,China)

机构地区：[1]四川省疾病预防控制中心环境与学校卫生消毒所,成都610000

出　　处：《中国公共卫生》2021年第6期1003-1007,共5页Chinese Journal of Public Health

基　　金：四川省医学科研青年创新计划(Q17070)。

摘　　要：目的利用偏度–中位数–变异系数法(LMS法)构建儿童青少年身高体重百分位曲线图,评价城乡儿童青少年生长发育差异,推广LMS方法在儿童青少年生长发育领域的应用。方法采用整群抽样方法,抽取2018年四川省7~18周岁中小学生25475人,采用LMS法构建儿童青少年身高体重P_(5)、P_(50)和P_(95)百分位曲线图,分析农村地区与城市地区身高和体重P_(5)、P_(50)、P_(95)差值d变化情况。结果城市与农村地区男生身高的P_(5)、P_(50)、P_(95)差值d分别为0.03、1.20和1.60 cm;城市与农村地区女生身高的P_(5)、P_(50)、P_(95)差值d分别为–0.32、0.88和0.95 cm;P_(50)身高差值d为男生(1.20 cm)>女生(0.88 cm);身高差值d均为P_(95)>P_(50)>P_(5)。城市与农村地区男生体重的P_(5)、P_(50)、P_(95)差值d分别为0.18、0.96和1.85 kg;城市与农村地区女生体重的P_(5)、P_(50)、P_(95)差值d分别为–0.25、0.29和1.55 kg;P_(50)体重差值d为男生(0.96 kg)>女生(0.29 kg);体重差值d均为P_(95)>P_(50)>P_(5)。结论男生身高和体重城乡差异较女生大;高百分位人群身高城乡差别较大,呈现较大差异化;随着年龄组增加,P_(50)、P_(95)人群身高和体重城乡差值d呈现出从小变大再到显著减少的情况。Objective To construct percentile curves for height and weight of child and adolescent students using coefficient of skewness-median-coefficient of variation–Lambda-Mu-Sigma(LMS)method and to analyze rural urban difference in growth and development of the students for the application of LMS method in relevant researches.Methods Using cluster random sampling,we selected 25475 students aged 7–18 years in 110 primary and high schools in urban and rural regions across Sichuan province in 2018.Based on the data of height and weight measurement,the 5th,50th and 95th percentile(P_(5),P_(50) and P_(95))curves for the urban and rural students were constructed using LMS method with the software(LMS chartmaker Light Version 2.54)and the differences between the urban and rural students with the height and weight of P_(5),P_(50) and P_(95) values were analyzed.Results The urban and rural differences in average height for the boy students with the P_(5),P_(50) and P_(95) value were 0.03,1.20 and 1.60 cm,and those for the girl students were–0.32,0.88 and 0.95 cm;while,the urban and rural differences in average weight for the boy students with the P_(5),P_(50) and P_(95) value were 0.18,0.96 and 1.85 kg,and those for the girl students were–0.25,0.29 and 1.55 kg,respectively.Conclusion For the child and adolescent students in Sichuan province,the urban and rural difference in average height and weight are larger in the boy students than in the girl students and both the differences are larger in the students with higher percentile values than in the students with lower percentile values.For the students with 50th and 95th percentile value of height and weight,the urban and rural differences increase first and then decrease with the increment of the sutdents′age.

关 键 词：四川省 中小学生 身高 体重 

分 类 号：R179[医药卫生—妇幼卫生保健]