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Results of subgroup analysis for repeat procedure.
| Subgroup | RR | 95% CI | I 2 |
|---|---|---|---|
| Termination | |||
| AT+SR | 0.91 | 0.75–1.11 | 89% |
| SR | 0.68 | 0.51–0.90 | 57% |
| Recurrence | |||
| Atrial arrhythmia | 0.66 | 0.52–0.85 | 83% |
| Atrial fibrillation | 0.81 | 0.77–0.97 | 84% |
| Ablation strategy | |||
| Stepwise | 0.58 | 0.44–0.75 | 84% |
| Others | 1.08 | 0.88–1.32 | 0% |
