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Re: st: Left truncation in survival analysis


From   Steven Samuels <[email protected]>
To   [email protected]
Subject   Re: st: Left truncation in survival analysis
Date   Wed, 27 Apr 2011 18:47:36 -0400

Yagit:

"My question: is there any way to introduce this situation to Stata? 

If you do not know anything about when unemployment started (such as the year), the answer is "No".  I don't think that a method for handling this kind of data exists. At least I couldn't find one in Klein, John P., and Melvin L. Moeschberger. 2003. Survival Analysis : Techniques for Censored and Truncated Data. 2nd ed. ed. New York: Springer

Steve
[email protected]




On Apr 27, 2011, at 1:31 PM, Yigit Aydede wrote:

Hi,
I am new to Stata.  I am estimating a hazard model of unemployment duration.  The dataset is a two-year monthly panel.  The first observation starts in 01/2006 for each individual and indicates if the person is unemployed or not.  However, if she is unemployed in 01/2006, there is no way to know how long she has been unemployed. That is, I have lots of individuals without information on their true onset of risk.  My question: is there any way to introduce this situation to Stata?  Any help would be much appreciated. Thanks

Yigit Aydede
Department of Economics
Saint Mary's University  

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