BTLA and non-small cell lung carcinoma: Adjusting the risk factors (age, sex, smoking, drinking, and BMI status), the genotypes of BTLA rs3112270 polymorphism were not closely correlated with NSCLC susceptibility, whereas the GA genotype of BTLA rs1982809 SNPs still decreased the susceptibility of NSCLC patients (GA: adjusted OR = 0.81, 95%CI = 0.66‐0.99, and P = 0.043; Table 4).