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Re: st: OLS regression versus survival analysis


From   Ronan Conroy <rconroy@rcsi.ie>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: OLS regression versus survival analysis
Date   Wed, 12 Jun 2002 15:10:40 +0100

on 12/6/02 1:05 PM, ellen mastenbroek at e.mastenbroek@lycos.com wrote:

> I have set out to do a survival analysis, but it has become clear that only 3
> % of the cases are censored. Is it advisable to then carry out regular OLS
> regression instead (the advantage being that OLS results are more easy to
> interpret)?

No. Your endpoint is binary. You want to figure out what effect does a
particular predictor have on the risk of an event happening. That's a hazard
ratio. 

Start with Kaplan Meier graphs, which are even easier to interpret than OLS
regression, and work from there.

 

Ronan M Conroy (rconroy@rcsi.ie)
Lecturer in Biostatistics
Royal College of Surgeons
Dublin 2, Ireland
+353 1 402 2431 (fax 2329)

--------------------
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