Kaplan-Meier and cumulative incidence curves of the combined markers.

<p>Combined marker (EZH2, BMI1, SUZ12 and H3K27me3) expression groups were divided into three patient groups: group 1, groups 2–4 and group 5. The numbers of patients in the individual patient groups were: group 1 (n = 28), group 2 (n = 59), group 3 (n = 55), group 4 (n = 74) and group 5 (n = 31). Kaplan-Meier curves were made for overall survival (A) and cumulative incidence curves are shown for disease-free survival (B), locoregional recurrence-free survival (C) and distant recurrence-free survival (D). 5-year survival rates are given for each patient group. Tables below the curves indicate the numbers at risk (#) per group for the different time points.