topic PROC LIFETEST survivalplot, plot all subjects and subgroups on same plot in SAS Programming

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

LzyButEfficient — Wed, 22 Jul 2020 17:19:13 GMT

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.

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

FreelanceReinh — Wed, 22 Jul 2020 18:02:03 GMT

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;

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

LzyButEfficient — Wed, 22 Jul 2020 18:10:51 GMT

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!