对于人类生长的研究观察到两种模式:一是身体成熟的增长率,最终身高和以身高为标准的最大体重值的长期趋势(Seculartrends)或世代间(in er-generational)的变化;二是这些参数在不同社会经济阶层人群中的分布梯度(social gradients)。来自社会经济上层的儿童比下层者身材高、体重值大,成熟早。英国Goldstein调 Two models were observed for the study of human growth: one is the long-term trends in body growth, final height and height-based maximum body weight values, or changes in in-generational; and secondly, The social gradients of these parameters in different socio-economic groups. Children from the socio-economic upper class are taller, have heavier weight and mature earlier than those in the lower classes. British Goldstein transfer