summary.coxph {survival}R Documentation

Summary method for Cox models

Description

Produces a summary of a fitted coxph model

Usage

## S3 method for class 'coxph'
summary(object, conf.int=0.95, scale=1,...)

Arguments

object

the result of a coxph fit

conf.int

level for computation of the confidence intervals. If set to FALSE no confidence intervals are printed

scale

vector of scale factors for the coefficients, defaults to 1. The confidence limits are for the risk change associated with one scale unit.

...

for future methods

Value

An object of class summary.coxph.

See Also

coxph, print.coxph

Examples

fit <- coxph(Surv(time, status) ~ age + sex, lung) 
summary(fit) 
## Not run: 
Call: 
coxph(formula = Surv(time, status) ~ age + sex, data = lung) 
  
  n= 228  
  
      coef exp(coef) se(coef)     z      p  
age  0.017     1.017  0.00922  1.85 0.0650 
sex -0.513     0.599  0.16745 -3.06 0.0022 
  
    exp(coef) exp(-coef) lower .95 upper .95  
age     1.017      0.983     0.999     1.036 
sex     0.599      1.670     0.431     0.831 
  
Rsquare= 0.06   (max possible= 0.999 ) 
Likelihood ratio test= 14.1  on 2 df,   p=0.000857 
Wald test            = 13.5  on 2 df,   p=0.00119 
Score (logrank) test = 13.7  on 2 df,   p=0.00105 

## End(Not run)
[Package survival version 2.41-3 Index]