Hi,   I'm trying to compare the survival estimates of multiple groups to a control group. Eg I have groups A, B, C, and D. I want to see if there is a difference between A vs BCD.  This is the current code I have, however, I don't want a complete pairwise comparison (A v B, B v D, etc) just the control compared to the combined 3 groups (A vs BCD).   proc lifetest plots=survival (atrisk) data=E2y; where AGE > 18; time PTIMEYrsT10y*PSTATUST10y(0); strata Group/adjust=sidak; label PTIMEYrsT10y='Years Post Treatment'; run;   Thanks ... View more