NCR1 is a prognostic factor in PD-L1 positive NSCLC. Hazard ratios of progression-free survival (PFS) and overall survival (OS) according to the median values, unless otherwise specified, of absolute expression of NKp30 isoforms A, B, C and relative expression of NKp30 Δ ratios, NCR3 and NCR1 are shown for PD-L1-negative (upper panel) and PD-L1 positive (lower panel) tumor cells (cut-off value of 5%).