区间删失数据的3种统计模型分析及其SAS实现

SAS-based study on three statistical models for interval censored data analysis

借助SAS9.4中PROC ICLIFETEST、PROC ICPHREG过程步编写宏程序,同步实现了区间删失数据的生存函数估计、广义Log-Rank检验和PH类型回归模型的统计推断。结合回溯研究中368个样本HIV-1感染时间的区间删失数据给出实证分析。

Applying the procedures such as PROC ICLIFETEST and PROC ICPHREG in SAS9.4, we realize the statistic deduction for the survival function, Generalized log-rank test and PH regression for the interval censored data by means of macro programming. Interval censored data during the infection time from 368 samples are analyzed in the prospectively study.