Characteristics of patients with fine or coarse atrial fibrillation. Figures expressed as proportions or means where appropriate
| Variable | Fine (n = 76) | Coarse (n = 36) | Difference |
|---|---|---|---|
| Male | 36 (47%) | 22 (61%) | p = 0.23 |
| Age | 71.2 | 70.5 | p = 0.72 |
| β-blocker | 62 (81.6%) | 34 (94.4%) | p = 0.08 |
| Amiodarone | 13 (17.1%) | 3 (8.3%) | p = 0.26 |
| Ca2+ Channel blocker | 4 (5.2%) | 0 | p = 0.30 |
| Digoxin | 17 (22.3%) | 5 (13.9%) | p = 0.44 |
| Flecainide | 2 (2.6%) | 0 | p = 0.98 |
| Max energy used (J) | 209.5 | 190.3 | p = 0.06 |
| Mean No of shocks | 1.25 | 1.06 | p = 0.03 |
| LA size (cm) | 4.4 | 4.2 | p = 0.3 |
| LA volume (mls) | 54 | 59 | p = 0.5 |
| Indexed LA volume (mls/m2) | 38.96 | 41.79 | p = 0.34 |
| Normal LV function | 37 (48.7%) | 18 (50%) | p = 0.98 |