Table 1.
Baseline characteristics of participants undergoing cardioversion
| Baseline characteristics | Train (n = 40) | Test (n = 11) | P value |
|---|---|---|---|
| Mean age (y) | 62.8 ± 11.0 | 65.6 ± 14.4 | .48 |
| Male | 30 (75%) | 10 (91%) | .26 |
| White | 36 (90%) | 9 (82%) | .46 |
| Body mass index (kg/cm2) | 30.2 ± 6.2 | 30.0 ± 6.3 | .91 |
| Medical characteristics | |||
| Hypertension | 20 (50%) | 8 (73%) | .18 |
| Diabetes mellitus | 10 (25%) | 1 (9%) | .26 |
| Coronary artery disease | 4 (10%) | 0 (0%) | .27 |
| Congestive heart failure | 4 (10%) | 1 (9%) | .91 |
| Obstructive sleep apnea | 17 (43%) | 4 (36%) | .71 |
| Myocardial infarction | 3 (8%) | 1 (9%) | .86 |
| Cardiomyopathy | 4 (10%) | 1 (9%) | .93 |
| Valvular heart disease | 2 (5%) | 0 (0%) | .45 |
| Chronic obstructive pulmonary disease | 1 (3%) | 0 (0%) | .60 |
| Previous cardioversion | 19 (48%) | 6 (55%) | .68 |
| Stroke | 2 (5%) | 1 (9%) | .61 |
| Treatment characteristics | |||
| Beta-blocker | 22 (55%) | 9 (82%) | .11 |
| Antiarrhythmic drug | 25 (63%) | 4 (36%) | .12 |
| Anticoagulant drug | 38 (95%) | 11 (100%) | .45 |
| Procedural characteristics | |||
| No. of shocks | 1.3 ± 0.9 | 1.1 ±0.3 | .22 |
| Successful cardioversion | 34 ± 0.4 | 9 ± 0.4 | .80 |
| Joules delivered | 306.5 ± 312 | 242.7 ± 117 | .30 |
Demographic, medical, and procedural characteristics for all participants in train and test sets undergoing cardioversion are listed. Values are given as mean ± SD or n (%), unless otherwise indicated.