Cox regression output in xtable - choosing rows/columns and adding a confidence interval

Question

I wan\'t to export the output from a cox regression to a table that I then can put into my article. I guess the best way to go about it is with xtable:

library(s         


        

Answer 1

xtable(round(summary(fit.pbc)$conf.int[c(1,3),],3))
#-----------------------------#
% latex table generated in R 2.13.1 by xtable 1.5-6 package
% Sat Oct 15 18:36:04 2011
\begin{table}[ht]
\begin{center}
\begin{tabular}{rrrrr}
  \hline
 & exp(coef) & exp(-coef) & lower .95 & upper .95 \\ 
  \hline
age & 1.04 & 0.96 & 1.02 & 1.06 \\ 
  log(bili) & 2.37 & 0.42 & 2.02 & 2.79 \\ 
   \hline
\end{tabular}
\end{center}
\end{table}

This shows what you see with str on the summary-object

str(summary(fit.pbc))
# snipped
 $ conf.int    : num [1:5, 1:4] 1.0404 2.4505 2.3716 10.8791 0.0815 ...
  ..- attr(*, "dimnames")=List of 2
  .. ..$ : chr [1:5] "age" "edema" "log(bili)" "log(protime)" ...
  .. ..$ : chr [1:4] "exp(coef)" "exp(-coef)" "lower .95" "upper .95"