Fig. 2

Kaplan–Meier (K-M) curves plotted for OS and DFS probability to demonstrate the prognostic power of the PD1-TC-PD-L1 scoring system. As it is interpreted from the figures, the scores have significant prognostic potential, and patients with higher scores have benefited from longer DFS and OS. K-M curves show that in the patients with the highest score of PD-1/TC-PD-L1, none of the patients have experienced disease recurrence or death. OS: overall survival, DFS: disease-free survival, TC-PD-L1: PD-L1 expression by tumor cells