Risk factors associated with having any atrial arrhythmia
| Characteristic | Univariate (95% CI) | P value | Multivariate (95% CI) | P value |
| Atriopulmonary Fontan | 6.91 (2.57 to 18.60) | <0.001 | 5.77 (1.80 to 18.48) | 0.003 |
| Age | 1.12 (1.05 to 1.19) | 0.001 | 1.10 (1.03 to 1.18) | 0.006 |
| Number of cardiac surgeries/procedures | 1.22 (0.93 to 1.61) | 0.15 | 1.50 (1.06 to 2.12) | 0.021 |
| Cirrhosis | 6.18 (1.21 to 31.69) | 0.03 | 6.90 (0.96 to 49.60) | 0.06 |