On 04/07/2012 05:00 AM, r-help-requ...@r-project.org wrote:
It is possible to calculate the c-index for time dependent outcomes (such as
disease) using the survivalROC package in R. My question is : is it possible to
produce a p-value for the c-index that is calculated (at a specific point in
time)?How to get the confidence interval of area under then time dependent roc
curve (or by bootstrap)?
The current version of survival computes the c-index and it's standard
error for time-dependent covariates.
Use summary(cox model fit) or the survConcordance function.
Terry T.
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