Results illustrated for DeepSurv (A, B), neural network multitask logistic regression (N-MLTR) (C, D), and random survival forest (RSF) (E, F) models. Panels on the left examine the subgroup of patients who were recommended to receive radiation alone by each of the 3 models, with no survival difference (per log-rank test) seen between patients who did or did not receive chemotherapy. A benefit to chemotherapy is seen for patients recommended for CRT by the DeepSurv and N-MTLR models (B, D).