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st: Re: st: Imputing with ice and using clogit‏


From   daniel klein <klein.daniel.81@googlemail.com>
To   statalist@hsphsun2.harvard.edu
Subject   st: Re: st: Imputing with ice and using clogit‏
Date   Wed, 6 Jun 2012 09:48:19 +0200

Tasha,

I have not (yet) tried to do a -clogit- with -mi- data, but you can
clearly import -ice- data (Royston, available from SSC) into -mi- (see
-help mi import-). Also, the help file for -mi estimate- (help
mi_estimation##estimation_command) states, that -mi estimate- supports
-clogit-, at least in Stata 12.

Can you explain what exactly you mean by "[...]none of them can be
properly combined for an ice-mi estimate clogit type combo"?

Best
Daniel

-- 
Hi all:
I have survival data that requires multiple imputation for a variable
with considerable missingness (>35%). I then need to generate
case-control sets that are individually matched (via the sttocc and
match commands), and then use conditional logistic regression while
properly accounting for the within and between imputation variation
using Rubin's rules.


While Stata 11 and 12 allow the user-written ice command and mi
estimate allows Cox, multinomial and regular logistic models, none of
them can be properly combined for an ice-mi estimate clogit type
combo. Has anyone had success doing a clogit after multiple
imputation? Any help or suggestions would be appreciated.


Thanks!Tasha Amin, PhD student, Epidemiology
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