In a discrete-time survival model the occurrence of some event is measured by the end of each time interval. In practice it is not always possible to measure all subjects at the same point in time. In this study the consequences of varying measurement occasions are investigated by means of a simulation study and the analysis of data from an empirical study. The results of the simulation study suggest that the effects of varying measurement occasions are negligible, at least for the scenarios that were covered in the simulation. The empirical example shows varying measurement occasions have minor effects on parameter estimates, standard errors, and significance levels.

中文翻译：

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离散生存分析中各种测量场合的后果

在离散时间生存模型中，某些事件的发生是通过每个时间间隔的结束来衡量的。实际上，并非总是能够在同一时间点测量所有主题。在这项研究中，通过模拟研究和对实证研究数据的分析，研究了不同测量场合的后果。仿真研究的结果表明，至少对于仿真中涵盖的场景，不同测量场合的影响可以忽略不计。经验示例表明，变化的测量时机对参数估计，标准误差和显着性水平影响较小。