Proc Lifetest vs Proc phreg

Babloo — Mon, 29 Aug 2016 13:44:00 GMT

Appreciate if someone helps me to understand the difference between Proc Lifetest vs Proc Phreg.

Thank you.

Re: Proc Lifetest vs Proc phreg

Rick_SAS — Mon, 29 Aug 2016 14:02:48 GMT

I recommend the section "Introduction to Survival Analysis Procedures" in the SAS/STAT documentation. It describes both procedures and compares them.

Briefly, LIFETEST provides a nonparametric estimate of the survival times. PHREG fits a (semi)parametric Cox model. In the Cox model you get parameter estimates that you can use to interpret the strength and significane of effects.

topic Proc Lifetest vs Proc phreg in Statistical Procedures

Proc Lifetest vs Proc phreg

Re: Proc Lifetest vs Proc phreg