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st: Dummy Variables vs. Subgroup Models in Logistic Regression


From   [email protected]
To   [email protected]
Subject   st: Dummy Variables vs. Subgroup Models in Logistic Regression
Date   Fri, 22 Oct 2004 13:45:26 +0000

Dear Stata Users,

     I'm creating a logistic regression model with many dichotomous variables along with one term that has 8 categories coded 1,2,..8.  I can create 7 dummy variables and have a very large model.  Would it be legitimate if my sample sizes are large enough to create 8 separate models with each model representing one subgroup?   Can anyone comment on the pros and cons of using dummy variables versus creating separate "subgroup" models based on the remaining independent variables?  Thanks!

   -Brian




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