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Re: st: Kaplan Meier

From   Philip Ryan <[email protected]>
To   [email protected]
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.


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

Quoting "Butt, Adeel" <[email protected]>:

> 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
CRICOS Provider Number 00123M
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