Difference for p value log rank test calculated from proc phreg vs proc lifetest

[ArchanaSudhir]

HI,

Is there a difference for p value log rank test calculated from proc phreg vs proc lifetest?

Thanks,

Archana

[rahul88888 · Accepted solution]

Proc Lifetest gives nonparametric product-limit (Kaplan-Meier) or lifetable estimate.
while Proc PHreg does proportional hazards regression to estimate ratio.

Notes to the same can be found at the following link

http://www.ats.ucla.edu/stat/sas/seminars/sas_survival/