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为探讨我国儿童与青少年的生长发育特征及发展趋势，用ＪＰＡ２模型对我国８０年代和９０年代的身高资料（不含台湾省和香港）作生长曲线拟合，并与发达国家和地区的生长标准进行比较。结果显示，生长曲线拟合使不同来源的资料具有可比性。比较结果，８０年代我国城市儿童身高的生长差距以青春发育期最为明显。９０年代，北京市７岁以上至成熟期之前男女儿童各年龄组的身高已高于香港和日本，基本达到美国健康统计中心（ＮＣＨＳ）标准，但成年高度仍比ＮＣＨＳ低３～４ｃｍ。与８０年代相比，北京市青少年成年高度趋于稳定。
In order to explore the growth and development characteristics of children and adolescents in China, we used JPA2 model to fit the growth curve of height data (excluding Taiwan Province and Hong Kong) of China in the 1980s and 1990s and compared them with the growth standards of developed countries and regions Compare. The results show that the growth curve fitting makes the data from different sources comparable. Compared with the results, the growth gap between the height of urban children in our country in the 1980s is most obvious in the period of puberty. In the 1990s, boys and girls of all ages before reaching the maturity stage in Beijing were higher than those in Hong Kong and Japan and basically reached the standard of National Institute of Health Statistics (NCHS). However, the height of adults was still 3 to 4 cm lower than that of NCHS. Compared with the 1980s, adolescents in Beijing adult height tends to be stable.