CD274 and adenocarcinoma: According to the manual scoring results, there were 65 PD-L1–negative cases (TPS < 1%; 18 squamous cell carcinomas cases, 46 adenocarcinomas cases and one adenosquamous carcinomas cases), 11 low expression cases (1% ≤ TPS < 25%; seven squamous cell carcinomas cases and four adenocarcinomas cases), nine moderate expression cases (25% ≤ TPS < 50%; one squamous cell carcinomas cases and eight adenocarcinomas cases), and 32 high expression cases (TPS ≥ 50%; 21 squamous cell carcinomas cases, eight adenocarcinomas cases, and three adenosquamous carcinomas cases).