PROC LIFETEST survivalplot, plot all subjects and subgroups on same plot

[LzyButEfficient]

Hi,

I want to plot an overall KM curve and subgroups KM curves on the same plot.  I can't seem to find how to do this, all examples I've seen only have subgroups but not overall.

Thanks.

[FreelanceReinh · Accepted solution]

Hi @LzyButEfficient and welcome to the SAS Support Communities (as a contributor)!

If the graph does not contain statistics about group comparisons, you can simply create a new input dataset from the existing one with a new group "Overall" (in the STRATA variable) comprising all observations. Here's how you would create it from sashelp.bmt (which is used in the PROC LIFETEST documentation):

data want;
set sashelp.bmt;
output;
group='Overall';
output;
run;

[LzyButEfficient]

I just need survival curves without any group comparison statistics and this was such a simple solution that I'm upset I didn't think of it!

Thanks for your help!