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st: str2ph and cluster

From   Jane Skinner <>
Subject   st: str2ph and cluster
Date   Thu, 13 Jul 2006 10:07:31 +0100 (BST)

Hi everybody

I have a question about Patrick Royston's str2ph command to
calculate explained variation in survival analysis, which I am using
with stcox.

Are the results of str2ph still valid if the "cluster" option is
used to adjust standard errors for intragroup correlation?

Many thanks,


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