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Re: st: Offset variable


From   David Hoaglin <dchoaglin@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Offset variable
Date   Mon, 9 Dec 2013 07:11:11 -0500

Hi, Stephen.

You have not described your data, but the usual approach would be to
simply include that independent variable in the model.  Then the
coefficients of the other independent variables will be adjusted for
the contribution of that variable.  I say "adjusted for" because that
is what regression does.  In observational data, regression generally
does not "control" any of the predictor variables.

David Hoaglin

On Sun, Dec 8, 2013 at 10:53 PM, Stephen A. Crowder <scrowder@umc.edu> wrote:
> I am developing an ordinal logistic regression model examining a factor with several levels on my dependent variable. That part is straight forward enough but I have a main independent variable that ide like to control for in the examination of all of the other independent variables. My question is would I need to make this an "offset variable" in my models? I've been looking through the literature and there's no clear answer available.

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