I think you will not have problem to but a transformation in a MLR, but the implications could be in the interpretation. You couldn't talk about the age, you have to talk about the age*age in all the estimation or odds.
Isaac A. Vargas Naranjo.
Gesti�n Financiera - Divisi�n Clientes
-----Mensaje original-----
De: [email protected] [mailto:[email protected]] En nombre de Alex Asiimwe
Enviado el: mi�rcoles, 11 de junio de 2008 07:01 a.m.
Para: [email protected]
Asunto: st: Variables in logistic regression
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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