Table 1. Population characteristics.
| Clinical Variable | Value (n = 322) |
|---|---|
| Age (years) ± SD | 65.4 ± 11.9 |
| Male sex | 233 (72.3%) |
| BMI (kg/m2) | 29.8 ± 6.6 |
| Partial interatrial block | 102 (31.9%) |
| Advanced interatrial block | 21 (6.5%) |
| Prior smoker | 204 (63.4%) |
| Hypertension | 232 (72.0%) |
| Dyslipidemia | 182 (56.5%) |
| Diabetes | 104 (32.3%) |
| Prior transient ischemia attack or stroke | 35 (10.9%) |
| Obstructive sleep apnea | 37 (11.4%) |
| Pulmonary disease | 49 (15.2%) |
| Prior known coronary artery disease | 118 (36.6%) |
| Congestive heart failure | 15 (4.7%) |
| Previous cardiac surgery | 43 (13.4%) |
| Prior atrial flutter | 3 (1.0%) |
| Left ventricular ejection fraction (%) | 55.2 ± 12.7 |
| Body surface area (m2) | 1.97 ± 0.22 |
| Left atrial diameter (mm) | 38.7 ± 6.0 |
| Left atrial volume indexed to BSA (ml/m2) | 31.6 ± 21.1 |
| Right atrial volume indexed to BSA (ml/m2) | 22.6 ± 15.6 |