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st: intracluster correlation coefficient after Cox regression
From
"Elmir" <[email protected]>
To
<[email protected]>
Subject
st: intracluster correlation coefficient after Cox regression
Date
Tue, 9 Jul 2013 15:04:26 +0200
Dear "statalists",
I am cardiologist with interest in statistics and stata (which makes it all
much easier.). I am working with a large hierarchical database (~700 000
patients) and we are interested in different question in regard to
prediction of patients outcome e.g. survival.
I would be very grateful if someone could help me with the following
question. How to calculate ICC (intracluster correlation coefficient) for a
particular set of data (or model). I have try to google this but was unable
to find something appropriate or (that I can understand properly). Perhaps I
have misunderstood the concept. If we model the survival with e.g. shared
frailty Cox-regression (with hospitals as clusters) how do I calculate ICC
from the model?
Thank you!
Elmir Omerovic
Gothenburg, Sweden
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