Hello,
I am trying to find an R function to compute 'direct adjusted survival'
with standard errors. A SAS-macro to do this is presented in Zhang X,
Loberiza FR, Klein JP, Zhang MJ. A SAS macro for estimation of direct
adjusted survival curves based on a stratified Cox regression model.
Comput Methods Programs Biomed 2007;88:95-101. It appears that this
method is not implemented in R. Can anyone prove me wrong?
Thank you for your time and assistance,
Peter.
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