Furthermore, significant differences were observed between groups with high PD-L1 expression and low PD-L1 expression levels for NSCLC (15.52 ± 7.72 vs. 11.63 ± 6.18; p=0.001) and ADC (12.91 ± 6.41 vs. 9.24 ± 5.25; p=0.003), respectively. This evidence concerns the gene CD274 and non-small cell lung carcinoma.