title: How to get 95% CI from R's coxph?
body: <p>I have used the following function in R's coxph() to fit a cox hazard model. I want to report the proper statistics; however, there is no 95% CI in the output.</p>
  
  <p><code>Surv(days, censor) ~  gender + age + treatment, data_1)</code></p>
  
  <p>I only get the following columns.</p>
  
  <p><code>coef exp(coef)  se(coef)     z       p</code></p>