Hello, I am trying to use proc iclifetest statement to obtain KM estimates and their 95% pointwise bootstrap confidence interval. I have already been able to obtain my KM estimates survival curve using proc lifetest. The problem is my code is not working based on the options given by SAS for proc iclifetest and there are no examples of using this procedure to obtain the bootstrap confidence interval, only specified options. My code: proc iclifetest data=A bootstrap(nboot=500) (seed=0); time survival*died(0); run; This is the code I used to produce my survival curve: proc lifetest data=A(where=(B<>'High')) plot=survival(cl cb=hw); time survival*died(0); run; Any help is appreciated. Thank you.
... View more