摘要
目的 利用偏度-中位数-变异系数法(LMS法)建立延边地区0～6岁儿童体质指数(BMI)参照值及生长曲线,评价延边地区0～6岁儿童BMI与中国儿童BMI标准差异,为评价延边地区0～6岁儿童生长发育水平提供参考标准.方法 采用分层随机整群抽样方法,抽取2019年延边地区0～6周岁儿童6 650人,利用LMS法分析,计算各年龄组儿童的各百分位数BMI标准值及各百分位数BMI曲线图.结果 延边地区男童、女童在0～6岁年龄段的BMI增长变化规律较为相似.在3月龄、6月龄、1、1.5、2、2.5、3.5、4.5、5、5.5、6 岁各年龄组男童 BMI 实测值分别为 17.43±1.53、17.89±1.73、17.10±1.44、16.53±1.31、16.46±1.45、16.26±1.32、16.11±1.62、15.80±1.74、16.03±2.10、16.44±2.55、16.77±2.88,均高于同年龄组女童 BMI 实测值的16.77±1.48、17.35±1.62、16.72±1.32、15.94±1.26、16.10±1.50、15.73±1.44、15.66±1.69、15.51±1.70、15.54±1.83、15.69±1.86、16.07±2.76,差异均有统计学意义(均P＜0.05).延边地区男童在1月龄至1岁年龄组的各百分位数BMI曲线均低于中国男童标准;在P3曲线上高于中国男童标准,在高百分位数曲线上尤为显著.延边地区女童在1月龄至1.5岁年龄组的各百分位数BMI曲线均低于中国女童;在P3曲线上总体低于中国女童;1.5岁以后各年龄组的BMI在P25、P50、P75、P97曲线上均高于中国女童,在高百分位数曲线上尤为显著.结论 延边地区0～6岁男童BMI值总体上高于女童BMI值;延边地区0～6岁儿童BMI值总体上已超过中国儿童BMI标准.
Abstract
Objective To establish variation trajectories and reference values of body mass index(BMI)for 0-6 year old children in Yanbian Korean Autonomous Prefecture(Yanbian)using the lambda-mu-sigma(LMS)method,and to analyze disparities between the BMI of local children and those of national references to evaluate the growth and development of children in the Yanbian region.Methods Using stratified random cluster sampling,we collected data from 6 650 children aged 0-6 years(1 557/1 860 and 1 356/1 859 Korean/Han boys and girls)who received a physical examination at five community health centers in five counties/prefectures in Yanbian region in September 2019.Simultaneous modeling of mean(mu),coefficient of variation(sigma),and skewness(lambda)of the children's BMI was performed using the LMS method to calculate percentiles 3,25,50,75,97 of age-specific reference BMI values.Results Variations in BMI showed a similar trend with age among the boys and girls surveyed.There were significant gender differences in age-specific BMI values,with boys having higher mean BMIs than girls at 3 months(17.43±1.53 vs.16.77±1.48),6 months(17.89±1.73 vs.17.35±1.62),1 year(17.10±1.44 vs.16.72±1.32),1.5 years(16.53±1.31 vs.15.94±1.26),2 years(16.46±1.45 vs.16.10±1.50),2.5 years(16.26±1.32 vs.15.73±1.44),3.5 years(16.11±1.62 vs.15.66±1.69),4.5 years(15.80±1.74 vs.15.51±1.70),5 years(16.03±2.10 vs.15.54±1.83),5.5 years(16.44±2.55 vs.15.69±1.86),and 6 years(16.77±2.88 vs.16.07±2.76),respectively(all P＜0.05).The participants'BMI growth trajectories derived from the LMS analysis showed that for the surveyed boys between one month and one year of age and girls between one month and 1.5 years of age,all percentile values of age-specific BMI were lower than those of the national reference values;but for the surveyed boys older than one year of age and girls older than 1.5 years of age,all the percentile values of age-specific BMI of were higher than those of the national reference values,except for the percentile 3 values,which were lower than those of the national reference values.Conclusion For the children aged 0-6 years in Yanbian region,the BMI values of boys are generally higher than those of girls and the overall BMI values of the children have exceeded the national reference values.
基金项目
古林省卫生健康适宜技术扶贫项目(2020FP042)
NETL
NSTL
万方数据