[R] Cox regression for prevalence estimates

Bernardo Rangel Tura tura at centroin.com.br
Tue Sep 7 14:14:45 CEST 2004

At , The Michaelson Institute wrote:
>How can R be used to calculate the prevalence ratios using Cox regression +
>robust variance estimates ?


In Design package have a command: cph
This command have a option "robsut" with default=FALSE, but in help is write:
" ... robust if TRUE a robust variance estimate is returned. ..."

I think that is your response...


Bernardo Rangel Tura, MD, MSc
National Institute of Cardiology Laranjeiras
Rio de Janeiro Brazil 

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