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st: How to svyset when strata are used in some groups and not others


From   "Louise Linsell" <Louise.Linsell@npeu.ox.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: How to svyset when strata are used in some groups and not others
Date   Fri, 02 Jul 2010 17:00:16 +0100

I have a dataset with 4 different types of hospital, and would like to compare binary outcomes between them using logistic regression.  However for the first type  (the most common), hospitals were divided into 6 strata (based on size and SES) and a random sample was taken from each strata.  For the other 3 types of hospital we sampled all hospitals. My question is, how to use the svyset command when a different sampling strategy was used in one group? 

LL




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