TET2 mutations (p = 0.042, HR = 4.361, 95% CI [1.053–18.056]) and increased IL‐1β (p = 0.012, HR = 5.476, 95% CI [1.547–28.123]) were significant risk factors associated with AF (Figure 3, Table S4). Here, IL1B is linked to atrial fibrillation.