Table 1 Characteristics of the study cohort and hazard ratios for the recurrence of a trial fibrillation (AF)
Early Recurrent AF | Late Recurrent AF | ||||
|---|---|---|---|---|---|
Characteristic | HR (95 %) | p | HR (95 % CI) | p | |
Demographics | |||||
Men | 55 (77 %) | 3.62 (1.10 – 11.88) | 0.034 | 1.84 (0.64 – 5.32) | 0.261 |
Age, years * | 52 ± 11 | 1.27 (0.92 – 1.75) | 0.147 | 1.01 (0.97 – 1.05) | 0.621 |
Body surface area, m2 | 2.10 ± 0.22 | 0.68 (0.14-3.39) | 0.634 | 0.36 (0.07 – 1.97) | 0.237 |
Body mass index, kg/m2 | 29.3 ± 5.6 | 0.99 (0.93 – 1.06) | 0.762 | 0.99 (0.92 – 1.06) | 0.780 |
Type of atrial fibrillation | |||||
Paroxysmal | 40 (56 %) | 0.36 (0.18 – 0.73) | 0.004 | 0.36 (0.17 – 0.80) | 0.012 |
Persistent | 25 (35 %) | ||||
Permanent | 6 (8 %) | ||||
Medical history | |||||
Mitral regurgitation † | 33 (46 %) | 1.68 (0.85 – 3.35) | 0.138 | 1.52 (0.71 – 3.25) | 0.280 |
Hypertension | 32 (45 %) | 1.27 (0.64 – 2.52) | 0.488 | 1.38 (0.64 – 2.95) | 0.409 |
Obstructive sleep apnea | 19 (27 %) | 0.79 (0.35 – 1.74) | 0.551 | 1.17 (0.51 – 2.68) | 0.713 |
Diabetes mellitus | 10 (14 %) | 1.38 (0.57 – 3.36) | 0.471 | 2.04 (0.86 – 4.83) | 0.106 |
Coronary artery disease | 7 (10 %) | 1.27 (0.44 – 3.61) | 0.659 | 1.54 (0.46 – 5.15) | 0.489 |
Obstructive lung disease | 3 (4 %) | 0 (not defined) || | 0.991 | 0 (not defined) || | 0.991 |
No comorbidity | 22 (31 %) | 0.71 (0.32 – 1.58) | 0.400 | 0.89 (0.38 – 2.12) | 0.799 |
CMR measurements | |||||
LV ejection fraction, % * | 61 ± 10 | 0.92 (0.66 – 1.28) | 0.609 | 1.22 (0.79 –1.88) | 0.371 |
LV end diastolic volume, ml * | 163 ± 40 | 0.91 (0.82 – 1.01) | 0.067 | 0.92 (0.82 – 1.04) | 0.168 |
LV mass, g * | 129 ± 34 | 1.03 (0.93 – 1.14) | 0.611 | 0.96 (0.86 – 1.08) | 0.516 |
Left atrial dimension (4-chamber), cm | 5.7 ± 0.8 | 1.58 (0.99 – 2.51) | 0.056 | 2.20 (1.38 – 3.49) | <0.001 |