Mean (SD) age (years) | | 56 (16) | | 55 (16) | | 64 (9) | | 0.36 |
Age range (years) | | 31–90 | | 31–90 | | 54–75 | | |
Men | | 21 (64%) | | 18 (58%) | | 3 | | 0.22 |
Previous history | | | | | | | | |
Ischaemic heart disease | | 8 (24%) | | 6 (19%) | | 2 | | 0.13 |
Valvular heart disease | | 11 (33%) | | 10 (32%) | | 2 | | 0.28 |
Hypertension | | 17 (52%) | | 14 (45%) | | 3 | | 0.11 |
History of AF | | 19 (58%) | | 18 (58%) | | 2 | | 0.64 |
Heart failure | | 2 (6%) | | 2 (6%) | | 0 | | 0.83 |
Mean (SD) heart rate on arrival (beats/min) | | 136 (20) | | 137 (21) | | 133 (12) | | 0.79 |
Mean (SD) Systolic bP (mmHg) | | 133 (27) | | 133 (25) | | 127 (37) | | 0.70 |
Range of systolic BP (mmHg) | | 80–210 | | 84–210 | | 80–170 | | |
Mean (SD) diastolic BP (mmHg) | | 83 (17) | | 83 (16) | | 78 (18) | | 0.66 |
Concomitant medical problem | | 5 (15%) | | 4 (13%) | | 1 | | 0.33 |
Pneumonia | | 1 (3%) | | 1 (3%) | | 0 | | |
Viral illness | | 2 (6%) | | 2 (6%) | | 0 | | |
Acute renal failure | | 1 (3%) | | 1 (3%) | | 0 | | |
Acute coronary syndrome | | 1 (3%) | | 0 | | 1 | | |
Use of amiodarone before biphasic cardioversion | | 13 (38%) | | 10 (32%) | | 3 | | 0.05 |