| Date: | Fri, 24 Jan 2003 13:46:31 -0600 |
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| Reply-To: | Paul Thompson <paul@WUBIOS.WUSTL.EDU> |
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| Sender: | "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU> |
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| From: | Paul Thompson <paul@WUBIOS.WUSTL.EDU> |
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| Organization: | Washington University in St. Louis |
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| Subject: | LIFETEST - comparing levels from STRATA statement |
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| Content-Type: | text/plain; charset=us-ascii; format=flowed |
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We have a situation in which we are using LIFETEST to do survival
analysis for three groups.
Here is the code:
proc lifetest data=genlimf;
time nmonths*hitf(0);
strata group;
ods output homtests=stratests;
title2 "Estimation of survivor function using LIFETEST";
title3 "Study B cases only";
run;
where group is 1, 2, 3
Does anyone know a simple way of comparing Groups 1 and 3? There does
not appear to be a CONTRAST statement for any of the survival methods in
SAS, which seems odd and unSASlike...
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