ALDH2 rs671 exhibited a protective role in terms of alcohol‐related disorder (OR = 0.04, p = 1.12 × 10−3), alcoholism (OR = 0.05, p = 2.46 × 10−3), and alcoholic liver damage (OR = 0.06, p = 2.86 × 10−3) (Figure 1B). This evidence concerns the gene ALDH2 and alcohol dependence.