ALDH2 and coronary artery disorder: There was a significant association between ALDH2 gene G487A polymorphism and CAD in the Chinese population under allele (OR: 1.830, 95% CI: 1.560–2.140, P = 1.36 × 10−13), recessive (OR: 1.920, 95% CI: 1.530–2.390, P = 1.20 × 10−8), dominant (OR: 1.593, 95% CI: 1.336–1.900, P = 2.22 × 10−7), homozygous (OR: 2.280, 95% CI: 1.810–2.870, P = 3.17 × 10−12) and heterozygous genetic models (OR: 3.330, 95% CI:2.070–5.370, P = 7.81 × 10−7; Table 2; Figs 1, 2, 3, 4, 5).