儿童早期的生长过程中可表现线性生长(lineargrowth)即身高的发育“偏离”出生时水平,或出现波动,即发生“追赶生长”(catch-up growth)或“生长减速”(catch-down growth)现象[1]。2000年KKL Ong等[2]的研究显示约1/4或1/5的儿童2岁时身长出现“追赶生长”或“生长减速”。200 Early childhood growth can manifest as linear growth, ie, the development of height “deviates” at birth or fluctuates, ie catch-up growth or catch-down growth (catch-up growth) ) Phenomenon [1]. A 2000 study by KKL Ong et al. [2] showed that about one-quarter or one-fifth of children showed “catch-up” or “growth retardation” at 2 years of age. 200