Table 1.
Baseline characteristics.
| Characteristic | AF (n = 121) | Stable SR (n = 95) | SR with frequent premature contractions (n = 128) |
|---|---|---|---|
| Age (yrs.), mean ± SD | 65.6 ± 11.2 | 64.0 ± 13.8 | 67.3 ± 14.2 |
| Male, n (%) | 64 (52.9) | 55 (57.9) | 69 (53.9) |
| Paroxysmal: persistent: Permanent AF | 101:14:6 | NA | NA |
| Type and frequency of premature contractions | |||
| Dominant PVC: dominant PAC type | NA | NA | 88:40 |
| Cases with frequent runs of ≥3 PACs/ PVCs, n (%) | 0 (0) | 0 (0) | 12 (9.4) |
| Cases with frequent bigeminy/ trigeminy episodes, n (%) | 0 (0) | 0 (0) | 31 (24.2) |
| PVCs, median beats/min (IQR) | <0.5 | <0.5 | 6.7 (16.4–2.6) |
| PACs, median beats/min (IQR) | <0.5 | <0.5 | 5.5 (14.6–2.9) |
| Total, median beats/min (IQR) | <0.5 | <0.5 | 6.2 (16.1–2.8) |
| CHADS 2 VASc risk score (categorical) | |||
| 0–1, n (%) | 37 (30.6) | 4 (18.2)a | 1 (3.2)b |
| 2–4, n (%) | 64 (52.9) | 14 (63.6)a | 21 (67.7)b |
| ≥5, n (%) | 20 (16.5) | 4 (18.2)a | 9 (29)b |
| CHADS2VASc risk score (quantitative), mean ± SD | 2.7 ± 1.7 | 3.1 ± 1.4a | 3.8 ± 1.7b |
| HAS-BLED score, mean ± SD | 0.9 ± 0.8 | 0.8 ± 0.6a | 1.4 ± 1.0b |
| OAC, n (%) | 91 (75.2) | 19 (20) | 23 (18) |
| DOAC, n (%) | 67 (55.4) | 15 (15.8) | 15 (11.7) |
| Warfarin, n (%) | 23 (19) | 4 (4.2) | 8 (6.3) |
| LMWH, n (%) | 1 (0.8) | 0 (0) | 0 (0) |
a
Calculated for patients with a history of AF, thus the denominator is 22.
b
Calculated for patients with a history of AF, thus the denominator is 31.
AF, atrial fibrillation; SR, sinus rhythm; PVC, premature ventricular contraction; PAC, premature atrial contraction; OAC, oral anticoagulant; DOAC, direct oral anticoagulant; LMWH, low molecular weight heparin; IQR, interquartile range.