Table 3. Predictors of AF recurrence in Cox multivariate survival regression analysis.
| Variables | β | SEM | HR | 95% CI | P value |
|---|---|---|---|---|---|
| Persistent AF duration (month) | 0.014 | 0.003 | 1.014 | 1.008–1.020 | <0.001 |
| Preoperative LA diameter (mm) | 0.071 | 0.019 | 1.073 | 1.033–1.115 | <0.001 |
| Preoperative RA area (cm2) | 0.036 | 0.015 | 1.037 | 1.006–1.068 | 0.020 |
| Preoperative beta-blocker | 1.173 | 0.413 | 3.231 | 1.438–7.259 | 0.005 |
AF, atrial fibrillation; β, regression coefficient; LA, left atrial; RA, right atrial; SEM, standard error of the mean; HR, hazard ratio; CI, confidence interval.