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st: Re: comparing OR (coefficients) across equations


From   "R.E. De Hoyos" <redeho@hotmail.com>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Re: comparing OR (coefficients) across equations
Date   Mon, 1 Nov 2004 20:19:36 -0000

Ricardo,

According to the Statalist archives you have asked this question before (30/Aug/04) and received several informed replies.

http://www.stata.com/statalist/archive/2004-08/msg00870.html

Did I miss something?

Rafa
________________________
R.E. De Hoyos
Faculty of Economics
University of Cambridge
CB3 9DE, UK
<red29@cam.ac.uk>


----- Original Message ----- From: "Ricardo Ovaldia" <ovaldia@yahoo.com>
To: <statalist@hsphsun2.harvard.edu>
Sent: Monday, November 01, 2004 6:43 PM
Subject: st: comparing OR (coefficients) across equations



Dear _all
I though I read something about this subject on
statalist but I could not find it in the archives.

I have fitted two logistic regression models using the
same control population and covariates on two
different groups of cancer patients. I am interested
in comparing the OR obtained for smoking in the two
models. They were both significant at 0.05, but I want
to test if they are the same for the two models.

Anyway to do this in Stata?

Thank you in advance,
Ricardo.

=====
Ricardo Ovaldia, MS
Statistician
Oklahoma City, OK



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