ALDH3B2 and esophageal squamous cell carcinoma: To further evaluate the effects of ALDH3B2 rs34589365, rs3741172, rs4646823, rs78402723, rs7947978, rs866907 and rs9787887 on ESCC risk with different gender, age, smoking and alcohol drinking status, stratification analyses were performed as demonstrated in the Tables 4–10.