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st: Cox multilevel
From
Celine Genty <[email protected]>
To
[email protected]
Subject
st: Cox multilevel
Date
Tue, 16 Nov 2010 16:34:34 +0100
Hello,
I am trying to make a multilevel model of survival data, so with the
-shared()- option.
I have about 5000 patients included by 300 center.
But 45 center have only 1 patient (with a median of 7 patients per
center IQR 3-21).
Is multilevel model appropriate in this case ? Is there too much center
? Is there too much center with only 1 patient ?
Thank you very much.
Best regards.
Céline GENTY
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