Fig. 3
From: Reduction in number to treat versus number needed to treat
NNT vs RNT with perturbation-resampling CIs for the prophylactic cranial irradiation trial [24]. a Kaplan-Meier estimates of disease-free survival curves for the prophylactic cranial irradiation (PCI) and observation groups; b NNTs and RNTs calculated from the survival rates with the 95% CIs; c NNTs and RNTs calculated from RMSTs with the 95% CIs