Figure 4From: HIS-based Kaplan-Meier plots - a single source approach for documenting and reusing routine survival information Kaplan-Meier Plots (Group analysis). These figures show the survival of the prostate cancer patients divided into two groups with numbers at risk. The left figure represents overall survival with no significant difference (p = 0.552) and the right figure event-free survival which shows a significant difference between both patient groups (p < 0.001).Back to article page