Hi, I want to show the difference in cumulative incidence of tumor recurrence between two groups (strata "variable" in the code below), treating death as a competing event. I am having trouble displaying censoring marks on cumulative incidence function plots when using competing risks analysis. I am also having trouble displaying the number of patients at risk at each time point (but I realize that the OUTCIF function can compute a table with number at risk at each time point which can then be manually entered underneath the CIF plot). I have no trouble showing censoring marks using the cumulative incidence capabilities of the Kaplan-Meier analysis; however, Kaplan-Meier overestimates cumulative incidence because it censors death instead of treating it as a competing event. I would therefore prefer not to use Kaplan-Meier. Below is the code for CIF and for the Kaplan-Meier method, respectively. Any help to display censoring marks for CIF in SAS 9.4 would be greatly appreciated. proc lifetest data=filename plots=cif(test); time Months*censor(0) / eventcode=1; strata variable; run; proc lifetest data=filename plots=(survival(outside f ATRISK PVALUE)); strata variable; time Months*censor(0); run; Thanks!
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