Fig. 2 : Kaplan-Meier survival curves.

A OS Kaplan–Meier survival curves according to the ESS70+ risk categories at up to 5 years (Training set complete cases). B RFS Kaplan–Meier survival curves according to the ESS70+ risk categories at up to 5 years (Training set complete cases). C OS Kaplan–Meier survival curves at up to 5 years for the training and validation sets. D OS Kaplan–Meier survival curves according to the ESS70+ risk categories at up to 5 years (validation set complete cases).