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st: Proportional Hazard Model


From   ajimenez@correo.insp.mx
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   st: Proportional Hazard Model
Date   Thu, 9 Sep 2004 17:43:03 -0500

Hello,

I am using a Proportional Hazard Model with time-dependent variables like 
diabetes duration. Can I get a coef with an opposite (negative) direction 
-contrary to what I expected- if I am using time-dependent variables? Why the 
coef for the same variable is positive if I am using Exponential Regression?

Thank you,

Aida               


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