Hi all, I want to calculate hazard ratio within each covariate
Example, one covariate has 3 classes (1,2 and 3) and x2 has 2 classes I want to compare the relative risk ratio within each class of the covariate. How do I get this result ? . The other question is that how do I interpret the second column in the second panel (i.e., exp(-coef)) I used the model coxfit1 <- coxph(Surv(sdat$time, sdat$cens)~ y1+x2) coef exp(coef) se(coef) z Pr(>|z|) y1 -0.024084 0.976204 0.003077 -7.828 5.00e-15 *** x2 0.036161 1.036822 0.083921 0.431 0.6665 exp(coef) exp(-coef) lower .95 upper .95 y1 0.9762 1.0244 0.9703 0.9821 x2 1.0368 0.9645 0.8796 1.2222 Thanks in advance ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.