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 <[email protected]>
Date: Thursday, May 24, 2007 12:26 pm
Subject: st: A question on using survival model
To: [email protected]
> 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
>
>
> *
> * For searches and help try:
> * http://www.stata.com/support/faqs/res/findit.html
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
