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Re: st: analysis on PSM matched control group
From
Neha Nanda <[email protected]>
To
[email protected]
Subject
Re: st: analysis on PSM matched control group
Date
Mon, 02 Aug 2010 11:41:23 -0700
Hi Sara
When you use psmatch2, several variables are created, one of them is called _treated. You should see this variable through the data browser once. It mentions treated or untreated for every treated or control observation on or off the common support.
I guess this should enable you to identify the control observations.
Hope this helps.
Neha Nanda
Ph.D Candidate
Florida State University
Tallahassee
Fl-32304
----- Original Message -----
From: Sara Abrams <[email protected]>
Date: Monday, August 2, 2010 11:29 am
Subject: st: analysis on PSM matched control groupS
To: [email protected]
> I've conducted some PSM analysis using the psmatch2 procedure (1:3
> nearest neightbor matching, logit model). I need to run
> frequencies and
> crosstabs for covariates used in matching by my outcome variable for
> both the unmatched and matched control groups. How do you identify
> thematched controls in the dataset after PSM in order to conduct
> analysiswith just this susbset of cases? How do you handle matched
> cases that
> have been matched with more that one treatment case (with
> replacement)?
>
> Thanks,
>
> -Sara
>
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