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Re: st: Kaplan Meier


From   Philip Ryan <philip.ryan@adelaide.edu.au>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Kaplan Meier
Date   Sun, 29 Aug 2004 16:20:40 +0930

Welcome to the list.

As  first step, you might  -stdes-  your data set and check the maximum exit
time (or just -stset- without any parameters).  Alternatively, -codebook- your
time-to-event variable.   One has to be suspicious that lurking somewhere in
your data is a t=40 or thereabouts.  I don't think tinkering with the entry or
origin will illuminate the problem.

Phil

ps: probably best you delete an unconnected thread of messages from your own
posts to the list.


Quoting "Butt, Adeel" <ButtA@dept-med.pitt.edu>:

> I am a new statalist user. I had a much simpler question:
> 
> I am working on a Cox model. I stset the dataset appropriately for failure
> (death) and the model ran okay, as expected. The follow-up time in the
> dataset is about 12 years. However, when I ran the Kaplan-Meier survival
> curves, the x-axis shows a follow-up period of almost 40 years. I entered
> the entry time, origin time, but neither fix the problem. 
> 
> Any suggestions.
> 
 

-- 
Philip Ryan
Associate Professor
Department of Public Health
University of Adelaide
5005 South Australia
AUSTRALIA
CRICOS Provider Number 00123M
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