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st: multiple imputation and transformations

From   "E. Michael Foster" <>
Subject   st: multiple imputation and transformations
Date   Thu, 13 May 2004 15:58:57 -0400 (EDT)


 I want to report confidence intervals for odds ratios.  It's clear that 
-MIFIT- is working with the underlying betas even when one uses the
logistic command.  What STATA reports as the MI estimate for the odds
ratio is the exponentiated value of the betas averaged across the

   It makes more sense to me to transform the betas before the
averaging.  My sense is that one should do all steps in the analyses
before implementing Rubin's rules.

   Does this sound right?  Can anyone make a counter-argument?

E. Michael Foster 
Health Policy 
Penn State

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