Fig. 5

Association between the SRRM and PFS. A The SRRM predicts the PFS in the training and B validation cohorts. PFS curves of patients with C high PD-L1 expression (≥ 50%). D Low PD-L1 expression (< 50%). E High TMB score (≥ 10 muts/Mb), and F low TMB score (< 10 muts/Mb). PFS progression-free survival, PD-L1 programmed death-ligand 1, TMB tumor mutational burden, SRRM sub-regional radiomics model, CI confidence interval, HR hazard ratio