Framework To Build Survival Analysis Model On R

survival
cox-ph

#1

Hey, in the interpretation of cox ph model results (in the above article), following conclusions were taken -

  1. Platinum customers have 230% higher chance to make a purchase of more than $20,000.
  2. Last campaign responders have 290% higher chance to make a purchase of more than $20,000.

I think the 230%/290% higher chance is compared to non-platinum/non-responders respectively. correct me if I am wrong.


#2

Yes, you are correct. It is formally called Hazard Ratio. For example, in a study, men turned out to be three times more addicted to alcohol than women, giving a hazard ratio of 3.


#3

Hi there, quick question. How did you transform the hazard rates for the covariates into percentages. ie how did you go from 3.xxx to 230%