Among those showing AF, the prevalence of ALDH2 Vt was comparable to the non-AF counterparts (40.0 vs. 33.9%, p = 0.55) with significantly higher daily alcohol consumption (14.3 [8.6~28.6] gday vs. 10.0 [1.7~23.0] gday, p = 0.016). Here, ALDH2 is linked to atrial fibrillation.