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Survival analysis

To: <jmp-l@lists.biostat.wustl.edu>
Subject: Survival analysis
From: "Nader Deeb" <Nader.Deeb@sygeninternational.com>
Date: Wed, 1 Feb 2006 21:22:17 -0600
Thread-index: AcYnp95xVLU+SzimT3i+56cyi+llBw==
Thread-topic: Survival analysis

Subject: Survival data analysis using Fixed Censoring (right censoring).

 

I have two treatments and group of subjects within each treatment that some have died during the test period while others survived to the end.

 

Those that died have a `death_age', while all the survivals

(censored) have missing values.

 

I produced a new column called censored where dead animals get a value of 0 and survivals get a value of 1.

 

The objective is to test if there is a difference in survivability between the two treatments.

 

Is this the right way to arrange this data?

Should I give the survival a `fake' death_age (999)?

What option of the survival analysis would work best (proportional hazard, survival, parametric etc.).

 

Thanks.

 

 

 

 

 

 

 

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