
Dear List,
Must be a silly question, but I was wondering whether there is a direct way of calculating "standard error of a HR or exp(coef)" from coxph objects
x <- coxph(Surv(time, status) ~ age + inst, lung)> x        coef exp(coef) se(coef)     z    page   0.0190      1.02  0.00925  2.06 0.04inst -0.0104      0.99  0.01028 -1.01 0.31

cheers,
Ehsan 		 	   		  
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