CD274 and non-small cell lung carcinoma: The Kaplan–Meier analysis showed that the low N(PD-L1 to PD-1) in TC and high P(PD-L1 to PD-1) in TC (46.93 vs. not reached, P < 0.001) were associated with favorable prognosis in patients with NSCLC (Fig. 4d–g).