The original code can be accessed from SAS: Analysis of Multivariate Failure Time Data
https://documentation.sas.com/doc/en/statug/15.2/statug_phreg_details45.htm#statug_phreg012597
proc phreg covs(aggregate); model (Tstart,Tstop)*Status(0)=Trt Age; baseline covariates=Pattern out=out2 cmf=_all_; id ID; run;
However, if I add eventcode=1, the code does not work.
proc phreg covs(aggregate); model (Tstart,Tstop)*Status(0)=Trt Age/ evencode=1; baseline covariates=Pattern out=out2 cmf=_all_; id ID; run;
Can anyone help me figure it out? Many thanks!
Doesn't work is awful vague.
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Assuming of course your submitted code was EVENTCODE=1 not the EVENCODE shown in your post.
Quite often the LOG does have related information that you should share.
data is
ID | TStart | TStop | Status | Trt | Age |
174054 | 0 | 293 | 0 | 1 | 38 |
204001 | 0 | 219 | 1 | 2 | 12 |
204001 | 219 | 373 | 2 | 2 | 12 |
204001 | 373 | 414 | 0 | 2 | 12 |
I am sorry for the typo, It should be eventcode=1.
Actually I got some warnings. It seems cmf cannot work with Fine and Gray competing risk analysis together? So how can I write the code to generate mcf and competing risk together?
1)
I think you need to change your data structure(a subject has only one obs/Time/Status) to use EVENTCODE=1.
You can " create a time-varying covariate using programming statements in proc phreg." other than this kind of data structure [TStart, TStop] .
And Here is an example:
(here 'in_hosp' is a time-varying covariate)
proc phreg covs(aggregate);
model Time*Status(0)=Trt Age in_hosp/ evencode=1;
if Time> 219 then in_hosp = 0;
else in_hosp = 1;
run;
2)
If you don't have time-varying covariates, that would be better to use this code:
(Make sure a subject has only an obs and a TIME value and a STATUS value)
proc phreg covs(aggregate);
model Time*Status(0)=Trt Age/ evencode=1;
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