Table 1: Clinical and echocardiographical characteristics of study population with (Group 1) and without (Group 2) AF recurrence.
| Group 1 | Group 2 | p | |
| Age (years) | 69 ± 9.2 | 66.6 ± 9.3 | n.s. |
| Male gender (%) | 75 | 64.2 | n.s. |
| Underlying heart disease (%) | 36 | 30.0 | n.s. |
| Previous electrical cardioversion (%) | 12.5 | 10.0 | n.s. |
| Duration of last AF episode (months) | 14.5 ± 22.6 | 3.7 ± 2.5 | < 0.05 |
| Left atrial size (mm) | 47.5 ± 7.1 | 43.6 ± 5.8 | n.s. |
| Left ventricular diameter (mm) | 50.1 ± 7.9 | 53.4 ± 4.1 | n.s. |
| Left ventricular ejection fraction (%) | 56.6 ± 7.3 | 60.5 ± 8.1 | n.s. |
| Beta-blockers at the moment of EC (%) | 29 | 25 | n.s. |
| Antiarrhythmic drugs at the moment of EC (%) | 50 | 45 | n.s. |