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Re: st: RE: Backward or Forward selection of variables in cox regression


From   Deepa Aggarwal <da.aggarwal@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: Backward or Forward selection of variables in cox regression
Date   Fri, 8 May 2009 07:42:22 -0400

Nick,

Thanks for quick response. But why is it bad?

Deepa

On Thu, May 7, 2009 at 2:17 PM, Nick Cox <n.j.cox@durham.ac.uk> wrote:
> The usual term is Cox regression.
>
> You can use -stepwise- with -stcox-. It's a very bad idea, but it is
> possible. See Frank Harrell, Regression modeling strategies, Springer,
> NY, 2001.
>
> Nick
> n.j.cox@durham.ac.uk
>
> Deepa Aggarwal
>
> I am using stcox command of Stata for the longitudinal analysis in time
> varying cox regression. Is there any command with which I can do
> backward
> or forward selection of variables in cox regression?
>
> *
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>



-- 
Deepa

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