Introduction to Survival Analysis Procedures

Survival Analysis Procedures

There are three SAS procedures for analyzing survival data: LIFEREG, LIFETEST and PHREG. PROC LIFETEST is a nonparametric procedure for estimating the distribution of survival time and testing the association of survival time with other variables. PROC LIFEREG and PROC PHREG are regression procedures for modeling the distribution of survival time with a set of concomitant variables.

The LIFEREG Procedure

The LIFETEST Procedure

The PHREG Procedure

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