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st: A question on using survival model
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.
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