Effects observed for DISP2 (OR = 1.21, p = 0.021) and HLA-L (OR = 0.90, p = 0.034) were attenuated for adenocarcinoma, but not for squamous carcinoma (DISP2: OR = 1.30, p = 6.2 × 10−3; HLA-L: OR = 0.75, p = 1.6 × 10−6). This evidence concerns the gene HLA-L and squamous cell carcinoma.