ADH1C and esophageal squamous cell carcinoma: Logistic regression analyses revealed that all five SNPs were significantly associated with ESCC risk (ADH1B rs1042026: allelic OR = 2.02, 95% CI = 1.66–2.47, P<0.001; ADH1B rs17033: allelic OR = 1.58, 95% CI = 1.18–2.11, P = 0.001; ADH1C rs1614972: allelic OR = 1.65, 95% CI = 1.36–2.00, P<0.001; ADH1C rs1789903: allelic OR = 1.77, 95% CI = 1.33–2.35, P<0.001; ADH7 rs17028973: allelic OR = 1.61, 95% CI = 1.35–1.92, P<0.001) (Table 2).