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Re: st: Cox regression, one observation
From
Steve Samuels <[email protected]>
To
[email protected]
Subject
Re: st: Cox regression, one observation
Date
Thu, 13 Jun 2013 17:24:37 -0400
Cases with _t0 = 0 and _t = 1 are not excluded.
Steve
On Jun 13, 2013, at 4:41 PM, Lee Savage wrote:
I am running a survival analysis consisting of a dataset with 73 subjects. My duration time is months and three of my cases have durations of just one month meaning that their observed entry and exit is in the same row of the dataset. These cases are seemingly being excluded from the model as stset for the cases is _t=1 and _t0=0. My question is can I do anything to try and include these cases in the model or does survival analysis require that each case has at least two observations to be included?
Thanks
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