summary.coxph            package:survival            R Documentation

_S_u_m_m_a_r_y _m_e_t_h_o_d _f_o_r _C_o_x _m_o_d_e_l_s

_D_e_s_c_r_i_p_t_i_o_n:

     Produces a summary of a fitted coxph model

_U_s_a_g_e:

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

_A_r_g_u_m_e_n_t_s:

  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

_V_a_l_u_e:

     An object of class 'summary.coxph'.

_S_e_e _A_l_s_o:

     coxph, print.coxph

_E_x_a_m_p_l_e_s:

     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)