Table 2.
Multivariate Cox regression of AF recurrence risk for 365-days after the first RFCA for patients with PeAF
| Variables | Hazard ratio (HR) | Lower 95% | Upper 95% | P value |
|---|---|---|---|---|
| Female | 2.21 | 1.25 | 3.91 | 0.007 |
| BMI | 1.09 | 1.00 | 1.19 | 0.041 |
| AF duration | 1.01 | 1.01 | 1.02 | <0.001 |
| Responses after nifekalant | ||||
| AF rhythm | 3.1 | 1.62 | 5.94 | <0.001 |
| AFL or AT | 0.42 | 0.14 | 0.93 | 0.039 |
| LAD | 1.11 | 1.06 | 1.16 | <0.001 |
AF, atrial fibrillation; AFL, atrial flutter; AT, atrial tachycardia; BMI, body mass index; LAD, left atrial diameter; PeAF, persistent atrial fibrillation; RFCA, radiofrequency catheter ablation