Estimating survival?
Min-Han Tan wrote:
Hi, Sorry to trouble the list. I have a problem which I'm not sure how to resolve. I have a Cox model with 1 independent variable with 2 categories (and thus 2 survival curves on plotting survfit) How can I get an estimate of survival for each category at a particular time point, with standard error? Looking through ?cph and ?coxph, I'm not quite sure how to go about that. I would really appreciate any direction here. Thanks a million! Min-Han
The survest function in the Design package makes this easy. You can also probably do it without a lot of hassle using standard survival package routines. With survest you can easily specify covariate combinations for which to obtain predictions.
Frank E Harrell Jr Professor and Chair School of Medicine
Department of Biostatistics Vanderbilt University