# Survival analysis: Determining event rate taking into account censoring

I have survival data with 1 column for time, one for survival, and one for treatment group. Time is in units years. I created a cox model

   coxph(Surv(time,event)~treatment_group)


I have obtained the hazard ratio and p-value for treatment group. However, how do I determine the event rate per year, taking into account censoring. Essentially, I'm looking for x%/year in treatment group had the event.

• That's a hazard rate of 0.1/year. Thou get the percentage per 1 year from the cdf as $1-e^{-\lambda \times 1}$. – Björn Sep 24 '17 at 7:08