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Have a look at the "Discrete" entry in the [ST] Manual.

It is no problem to estimate survival models for interval-censored data in
Stata. See the Lessons available at
http://www.iser.essex.ac.uk/teaching/stephenj/ec968/index.php



Stephen
-------------------------------------------------------------
Professor Stephen P. Jenkins <stephenj@essex.ac.uk> Institute for Social and
Economic Research University of Essex, Colchester CO4 3SQ, U.K.
Tel: +44 1206 873374.  Fax: +44 1206 873151.
http://www.iser.essex.ac.uk   

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of siyama
Sent: 16 June 2004 17:11
To: statalist@hsphsun2.harvard.edu
Subject: st: Varying survival distributions & interval censoring

Dear Stata-listers,

I wish to be able to benefit from the functionality of the "streg" setting
where one can specify the failure event (and time) whilst varying the option
"distribution()" between the six parametric distributions available
(exponential, weibull, gamma, lognormal, loglogistic and gompertz).

But what I have in interval-censored data survival times (as applicable with
"intreg" and "xtintreg").

I colleague of mine advised me that the procedure PROC LIFEREG in SAS
perhaps serves that purpose.

I would very much appreciate any helpful ideas or pointers to the
literature.


Best regards,


Amani





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