The median patient age was 65.5 years (58–68), 90% (38/42) of patients were male, 81% (34/42) of patients had squamous cell carcinoma, 73.8% (31/42) of patients had a smoking history, and 69% (29/42) of patients had baseline tissue PD-L1 data. Here, CD274 is linked to squamous cell carcinoma.