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Re: st: Checking Proportional Hazards Assumption in Multiply Imputed Data
From
Steve Samuels <[email protected]>
To
[email protected]
Subject
Re: st: Checking Proportional Hazards Assumption in Multiply Imputed Data
Date
Tue, 20 Aug 2013 18:38:38 -0400
1. In your -mi estimate: stcox- command, add an interaction of a
predictor with time (tvc() and texp() options), and test the
significance of the coefficient.
2. -mi extract- a few imputated data sets; run (non-mi) -stcox-; then
run -estat phtest- with the "plot" option. The purpose here is informal
diagnosis, so just ignore the fact that the data were imputed.
Steve
On Aug 19, 2013, at 9:56 AM, Dr Murray Finkelstein wrote:
Hello all,
Is there a method to check the proportional hazards assumption for Cox regression in multiply imputed data sets?
--
Murray M. Finkelstein PhD MD CCFP
Department of Family and Community Medicine
Mt Sinai Hospital
60 Murray Street, 4th Floor, Box 25
Toronto, Ontario, Canada M5T 3L9
Phone: 416-886-6448
Fax: 416-736-8543
E-Mail: [email protected]
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