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Re: st: RE: Violation of porportional hazard assumption in Cox duration model - consequences?


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: Violation of porportional hazard assumption in Cox duration model - consequences?
Date   Tue, 18 Mar 2008 10:47:07 +0000 (GMT)

--- Nils Braakmann <nilsbraakmann@googlemail.com> wrote:
> Would there have been any remedy if the results differed much between
> the stratified and non-stratified results, e.g. introducing
> interactions of the respective variable with (some function of)
> analysis time?

Yes, see for instance (Cleves et al. 2004, pp. 167--169)

Hope this helps,
Maarten

Mario Cleves, William W. Gould, and Roberto G. Gutierrez (2004) "An
Introduction to Survival Analysis Using Stata", College Station: Stata
Press. http://www.stata-press.com/books/saus.html



-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


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