Fig. 2

Kaplan-Meier estimates for IDFS and DDFS according to RS group. Rate of Invasive disease-free survival (a) and Distant disease-free survival (b) for the entire cohort. Rate of Invasive disease-free survival (c) and Distant disease-free survival (d) for the lymph node-negative cohort. The box under each graph presents the number of patients at risk at each time point