Risk factors associated with history of thromboembolic events
| Characteristic | Univariate (95% CI) | Multivariate (95% CI) | P value |
| Age | 1.05 (1.00 to 1.11) | 1.06 (1.00 to 1.12) | 0.05 |
| Cirrhosis | 5.22 (1.20 to 22.62) | 5.44 (1.13 to 26.21) | 0.04 |
| Any AA | 1.32 (0.54 to 3.22) | 0.65 (0.22 to 1.93) | 0.44 |
AA, atrial arrhythmia.