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st: RE: Kaplan Meier


From   Zakariya Mohammed <zakariya33@hotmail.com>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: Kaplan Meier
Date   Sun, 20 Apr 2008 13:51:29 +0000

Thanks Maarten

Using stci one can CI for the ristricted mean (rmean), but it doesn't work for me with the extended mean (emain). I am also unclear about how Stata extend the survival curve; is it the simple exponential extension e.g exp(- beta*t)?

Zakariya


----------------------------------------
> Date: Sun, 20 Apr 2008 13:25:45 +0100
> From: maartenbuis@yahoo.co.uk
> Subject: Re:  Kaplan Meier [was: st: Date: Sat, 19 Apr 2008 23:56:52 +0000]
> To: statalist@hsphsun2.harvard.edu
> 
> --- Zakariya Mohammed  wrote:
>> Any idea about how Kaplan-Meier survival curve is been extended? What
>> is the extrapolation function that used and how the  parameter of the
>> extrapolation function are estimated? Can Stata provide a confidence
>> interval for the extended mean?
> 
> The logic behind the Kaplan-Meier estimate is discussed in this paper:
> http://home.fsw.vu.nl/m.buis/wp/survival.htmln)
> 
> You can get confidence intervals with the -sts- command.
> 
> Hope this helps,
> Maarten
> 
> -----------------------------------------
> Maarten L. Buis
> Department of Social Research Methodology
> Vrije Universiteit Amsterdam
> Boelelaan 1081
> 1081 HV Amsterdam
> The Netherlands
> 
> visiting address:
> Buitenveldertselaan 3 (Metropolitan), room Z434
> 
> +31 20 5986715
> 
> http://home.fsw.vu.nl/m.buis/
> -----------------------------------------
> 
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