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• The results of Cox regression analysis provide key information to interpret, including:
  • Hazard ratio (HR): if the HR = 0.5 then half as many patients are experiencing the event compared to the control group, if the HR = 1 the event rates are the same in both groups, and if the HR = 2 then twice as many are experiencing an event compared to the control group. 
  • HR limit: this is the confidence interval of the hazard ratio. 
  • P-value: the lower the p-value, the greater the significance of the observation. 

(e.g. If you have selected both a co-predictor and strata factor then a comparison using the co-predictors and Type III p-value  for the co-predictor will be generated in the Cox regression report.)

Kaplan-Meier Survival Curve 

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