Popul Stud (Camb). 1976 Mar;30(1):59-76. doi: 10.1080/00324728.1976.10412720.
Summary Ledermann's one- and two-parameter model life tables are used in order to summarize and compare adult mortality estimates derived from parental survival data, and also to link parental survival with child survival data. The Ledermann models provide an alternative to the logit model used by Brass and Hill. Examination of life tables derived from actual child and adult mortality estimates reveals that although the two types of models yield similar overall levels of mortality, they show marked differences in the estimated patterns by sex and age. It has not been possible to disentangle completely how much of this divergence is due to the models themselves and how much to inadequacies in the data available. Finally, we question whether it is always wise to establish a full life table from child and adult mortality estimates when these are based on data which refer to different periods of exposure to the risk of dying, without allowance for possible distortions resulting from mortality change.
为了总结和比较从父母生存数据得出的成人死亡率估计值，并将父母生存数据与儿童生存数据联系起来，使用了 Ledermann 的单参数和双参数寿命表模型。Ledermann 模型为 Brass 和 Hill 使用的对数模型提供了替代方法。对从实际儿童和成人死亡率估计值中得出的寿命表进行的检查表明，尽管这两种类型的模型得出的死亡率总体水平相似，但它们在性别和年龄上的估计模式存在显著差异。尚无法完全确定这种差异有多少是由于模型本身造成的，有多少是由于现有数据的不足造成的。最后，我们质疑在基于不同死亡风险暴露期的数据（未考虑死亡率变化可能导致的扭曲）的基础上，从儿童和成人死亡率估计值中建立完整的寿命表是否总是明智的。
