However, no significant correlation was found between PD-L1 and sex (OR = 1.23, 95%CI = 0.95 − 1.58, p = 0.114), TNM stage (OR = 1.42, 95%CI = 0.83 − 2.45, p = 0.204), vascular invasion (OR = 1.28, 95%CI = 0.69 − 2.38, p = 0.431), perineural invasion (OR = 1.00, 95%CI = 0.59 − 1.68, p = 0.994), age (OR = 0.90, 95%CI = 0.61 − 1.33, p = 0.609), and tumor size (OR = 0.97, 95%CI = 0.70 − 1.33, p = 0.828). The gene discussed is CD274; the disease is neoplasm.