Table 1.
Baseline patient characteristics of the study population
| No pre-existing RV dilatation N = 747 |
Pre-existing RV dilatation N = 243 |
P value | |
|---|---|---|---|
| Age (years) | 70.4 ± 12.5 | 70.4 ± 10.9 | 0.95 |
| Female sex | 285 (38.2%) | 92 (37.9%) | 0.94 |
| BMI (kg/m2) | 26.5 ± 4.7 | 26.7 ± 4.7 | 0.67 |
| BSA (m2) | 1.89 ± 0.23 | 1.89 ± 0.23 | 0.63 |
| Single-chamber pacemaker | 158 (23.1%) | 82 (40.8%) | < 0.001 |
| RV pacing threshold (V) | 0.71 ± 0.61 | 0.75 ± 0.63 | 0.80 |
| Coronary artery disease | 420 (56.2%) | 147 (60.5%) | 0.24 |
| Heart failure | 375 (50.2%) | 145 (59.7%) | 0.01 |
| Diabetes | 191 (25.6%) | 68 (28.0%) | 0.46 |
| Myocarditis | 3 (0.4%) | 1 (0.4%) | 0.98 |
| Any atherosclerosis | 498 (66.7%) | 161 (66.3%) | 0.91 |
| Previous stroke or TIA | 94 (12.6%) | 32 (13.2%) | 0.81 |
| Previous CABG | 55 (7.4%) | 38 (15.6%) | < 0.001 |
| Atrial fibrillation | 385 (51.5%) | 169 (69.5%) | < 0.001 |
| Chronic kidney disease | 183 (24.5%) | 95 (39.1%) | < 0.001 |
| Endocarditis | 58 (7.8%) | 22 (9.1%) | 0.52 |
Values are mean ± SD, N (%), or median (interquartile range), unless otherwise indicated. P values < 0.05 in bold
BMI body mass index, BSA body surface area, CABG coronary artery bypass grafting, RV right ventricle, TIA transient ischemic attack, V volt