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st: Variables in logistic regression


From   "Alex Asiimwe" <Alex.Asiimwe@port.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Variables in logistic regression
Date   Wed, 11 Jun 2008 14:00:46 +0100

Dear STATA users,
Assuming I have age and gender, then I transform age to age*age to
normalise it. From here, I want logistic regression model to predit an
outcome- lets say mortality. Will I be wrong to use age, age*age and
gender all at the same time in the model? If so, what are the
implications?
e.g logistic outcome age age*age gender; In otherwords is acceptable to
use a variable and its transform in MLR (step wise)?
Can soemone help please
Thanks
alx
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