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Re: st: Conditional logistic needed?

From   Ricardo Ovaldia <>
Subject   Re: st: Conditional logistic needed?
Date   Fri, 5 Sep 2003 10:56:50 -0700 (PDT)

--- Nada Wasi <> wrote:

> I guess you need to interact "practice" with other
> variables, say x, which vary within doctorid, i.e.
> clogit referred x x*practice, group(doctorid)

Thank you, but this will not work for me. All
covariates are doctor specific, that is they do not
vary by doctor.


Ricardo Ovaldia, MS
Oklahoma City, OK

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