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RE: st: trend in ORs across ordered levels of a 3rd variable


From   "Visintainer, Paul" <PAUL_VISINTAINER@NYMC.EDU>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: trend in ORs across ordered levels of a 3rd variable
Date   Tue, 22 Apr 2008 11:37:24 -0400

Thanks, Maarten.

______________________________________
Paul F. Visintainer, PhD
Department of Epidemiology and Biostatistics
School of Public Health
New York Medical College
PH: (914) 594-4804
FX: (914) 594-4853
 

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Maarten buis
Sent: Tuesday, April 22, 2008 10:30 AM
To: statalist@hsphsun2.harvard.edu
Subject: RE: st: trend in ORs across ordered levels of a 3rd variable

--- "Visintainer, Paul" <PAUL_VISINTAINER@NYMC.EDU> wrote:
> Maarten, your model tested the interaction term in the logit.  Am I
> right to assume that, in this situation, the Chow test and the logit
> test of the interaction term are accomplishing similar goals?

Yes, though I would not use -suest- in this case, because it is more
lines of code, and thus more opportunities for making a typo, your
readers are less likely to be familiar with it, and in this case it
doesn't do anything that can't be done with interactions. 

-- Maarten


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