/*-----------------------------------------------------------------
S A S S A M P L E L I B R A R Y
NAME: LIFTGS
TITLE: Getting Started Example for PROC LIFETEST
PRODUCT: STAT
SYSTEM: ALL
KEYS: survival analysis, nonparametric methods,
ODS Graphics
PROCS: LIFETEST
DATA:
SUPPORT: sasycs
REF: 9.2 SAS/STAT User's Guide, PROC LIFETEST Chapter
MISC:
-----------------------------------------------------------------*/
proc format;
value Rx 1='Drug X' 0='Placebo';
run;
data exposed;
input Days Status Treatment Sex $ @@;
format Treatment Rx.;
datalines;
179 1 1 F 378 0 1 M
256 1 1 F 355 1 1 M
262 1 1 M 319 1 1 M
256 1 1 F 256 1 1 M
255 1 1 M 171 1 1 F
224 0 1 F 325 1 1 M
225 1 1 F 325 1 1 M
287 1 1 M 217 1 1 F
319 1 1 M 255 1 1 F
264 1 1 M 256 1 1 F
237 0 0 F 291 1 0 M
156 1 0 F 323 1 0 M
270 1 0 M 253 1 0 M
257 1 0 M 206 1 0 F
242 1 0 M 206 1 0 F
157 1 0 F 237 1 0 M
249 1 0 M 211 1 0 F
180 1 0 F 229 1 0 F
226 1 0 F 234 1 0 F
268 0 0 M 209 1 0 F
;
ods graphics on;
proc lifetest data=Exposed plots=(survival(atrisk) logsurv);
time Days*Status(0);
strata Treatment;
run;
ods graphics off;
proc lifetest data=Exposed notable;
time Days*Status(0);
strata Sex / group=Treatment;
run;
proc lifetest data=Exposed notable;
time Days*Status(0);
test Treatment;
run;
proc lifetest data=Exposed notable;
time Days*Status(0);
strata Sex / test=none;
test Treatment;
run;