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st: Model checking in Cox regression modelling


From   KRISTIEN VERHEYEN <kristien.verheyen@aht.org.uk>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   st: Model checking in Cox regression modelling
Date   Fri, 30 Apr 2004 10:08:54 +0100

Please can I ask the experts' opinions on model checking after Cox
regression including time-varying covariates and shared frailty terms?
Are there useful diagnostics to be done or am I just wasting my time? I have
been told residual plots can indicate poor model fit when the model fits the
data quite well or alternatively, may suggest good model fit for a poor
model. More opinions would be appreciated. 
Many thanks


Kristien Verheyen
PhD student

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