【摘要】 纵向观察是研究生长发育动态规律的好方法,但由于观察期间难免出现失访、退出等情况,使观察资料不完全,用常规统计方法不便处理。本文介绍了寿命表法怎样用于完整数据和有缺失数据的资料,例举了婴儿神经发育月龄的估计,提出了所述寿命表法的适用包围、注意事项等应用中应考虑的问题,为纵向资料估计发育年龄和不同人群间的比较提供统计手段。更多还原

【Abstract】 The longitudinal study is a useful tool in the research of the growth and developmeat of children. One of problems occuring in this kind of study is the cencring of observations duriug tht study period, which causes some statistical problems. This paper introduces the life table method to deal with the data both with and without cencered observations Calculations were given in estimating the developmental event age and its sampling error of infants.更多还原