Table 3.
Predictors of atrial fibrillation
| Variables | Study population n=192 | Arrhythmia recurrences | P-value | |
|---|---|---|---|---|
| No (n=160) | Yes (n=32) | |||
| Age (years) | 61.77±9.188 | 61.7±9.1 | 62.1±9.8 | 0.848 |
| Males (%) | 76 | 76.7 | 72.4 | 0.640 |
| Heart failure (%) | 5.2 | 4.9 | 6.9 | 0.649 |
| Persistent AF (%) | 39.6 | 36.8 | 55.2 | 0.068 |
| Hypertension (%) | 47.9 | 47.2 | 51.7 | 0.691 |
| Diabetes (%) | 8.3 | 9.2 | 3.4 | 0.474 |
| History of stroke/TIA (%) | 10.4 | 10.4 | 10.3 | 1.000 |
| CAD (%) | 10.4 | 9.8 | 13.8 | 0.513 |
| LA size >42 mm (%) | 53.6 | 50.9 | 69 | 0.105 |
| LA size (mm) | 43.67±6.8 | 43.3±6.8 | 45.9±6.8 | 0.068 |
| EF <50% (%) | 11.5 | 10.4 | 17.2 | 0.339 |
| EF (%) | 58.52±8.06 | 58.7±7.5 | 57.3±10.9 | 0.420 |
| SHD (%) | 7.3 | 6.6 | 11.1 | 0.419 |
| Creatinine (µmol/L) | 91.74±18 | 91.1±17.2 | 95.1±22.8 | 0.279 |
| eGFR <60 mL/min/1.73 m2 (%) | 27.1 | 25.2 | 37.9 | 0.175 |
| eGFR (mL/min/1.73 m2) | 71.25±16.8 | 71.8±16.9 | 68.3±16.8 | 0.306 |
| Previous ablation (%) | 33.3 | 31.3 | 44.8 | 0.199 |
| BMI (kg/m2) | 27.67±4.23 | 27.6±4.4 | 27.8±3.5 | 0.844 |
| Time to procedure (years) | 5.81±4.3 | 5.6±4.3 | 7.2±4.5 | 0.066 |
| Total ablations | 1.38±0.57 | 1.3±0.5 | 1.6±0.7 | 0.098 |
| CHADS2 score | 0.91±0.96 | 0.9±1.0 | 0.9±0.8 | 0.881 |
| CHA2D2-VASc score | 1.67±1.43 | 1.6±1.5 | 1.8±1.3 | 0.608 |
| R2CHADS2 score | 1.45±1.86 | 1.4±1.4 | 1.7±1.3 | 0.302 |
| APPLE score | 1.73±1.2 | 1.6±1.7 | 2.2±1.4 | 0.014 |
AF – atrial fibrillation; BMI – body mass index; CAD – coronary artery disease; eGFR – estimated glomerular filtration rate; EF – ejection fraction; LA – left atrium; TIA – transient ischemic attack; SHD - structural heart disease