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Re: st: A question on using survival model


From   David Greenberg <dg4@nyu.edu>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: A question on using survival model
Date   Thu, 24 May 2007 19:17:02 -0400

You can't, unless you are confident that those who visited a doctor within the last 30 days did so only once. David Greenberg, Sociology Department, New York University

----- Original Message -----
From: Chunling Lu <chunling_lu@harvard.edu>
Date: Thursday, May 24, 2007 12:26 pm
Subject: st: A question on using survival model
To: statalist@hsphsun2.harvard.edu


> Dear all,
> 
> I have a question "When was the last time you visited doctor" with the
> following categories: (1) in the last 30 days, (2) between 1 month and 
> less
> than 1 year ago. I now would like to derived the average number of visits
> for last 30 days. How should I model it and how can I do it in stata?
> 
> Any suggestions are highly appreciated. 
> 
> Chunling
> 
> 
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