[R] predict risk (% of death) at a certain time point
David Winsemius
dwinsemius at comcast.net
Tue Dec 20 04:55:30 CET 2011
On Dec 19, 2011, at 10:05 PM, Bill Hyman wrote:
> Dear all,
>
> Does any one know how to calculate the risk (death rate) at some
> time point (say 5 yrs) based on Kaplan-Meier curve in coxph model in
> R? I know how to fit the survival data with coxph. But need to
> calculate risk at some time point. Many thanks.
Have you looked at either:
?survfit.coxph
?predict.coxph # with type ="expected"
This seems to be a particularly common question this week. Is there
some sort of class project that is due before the holidays?
--
David Winsemius, MD
West Hartford, CT
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