摘要
目的 了解西安市儿童青少年身高发育与发达国家的差距及今后的发展趋势 .方法 采用 λ-中位数 -变异系数法 (λ- median- coefficient of variation,L MS)计算各地身高的中位数 ,比较各地身高中位数的差距和各地身高年增长值及男女生身高生长曲线的交叉年龄 .结果 西安市儿童青少年在青春期前均比美国和法国高 ,而在青春期后低于美国和法国 ;农村儿童青少年各年龄组均低于美国和法国 ,青春期后随年龄增长差别更大 .结论 西安市儿童成年后身高低于发达国家 ,主要是由于青春期生长速度减慢所致 ,说明我市儿童青春期营养仍比发达国家差 ,特别是农村儿童 .
AIM To investigate the difference of height development in children and adolescents in Xi'an and other developed countries, and the future growth trend of height for Xi'an children. METHODS Height medians for each group were estimated using λ median coefficient of variation (LMS) method. Height difference, yearly increment and crossing age of centile curve were compared between Xi'an, America and France children and adolescents for each sex. RESULTS Compared with children in America and France, urban children in Xi'an were higher before puberty, but shorter when they reached puberty and rural children and adolescents in Xi'an were shorter in all groups from 0 to18 years, and the height difference became greater after they had reached puberty. CONCLUSION Slower growth speed in puberty is mainly responsible for the shorter height of children in Xi'an by the time of puberty compared with those of developed countries, indicating that the nutrition of urban children in puberty, especially of rural children in Xi'an is not as good as that in developed countries.
出处
《第四军医大学学报》
2000年第1期18-21,共4页
Journal of the Fourth Military Medical University
基金
全军医药卫生科研基金!( 96M0 987)
关键词
儿童
发育
身高
比较
西安市
adolescent medicine
developmental biology
body height