Table 1:
Baseline characteristics of participants stratified by PVC frequency
| (Total participants = 316) | |
|---|---|
| Mean age (yrs) | 72.2 ± 5.1 |
| Female sex | 131 (41%) |
| Race | |
| - white | 294 (93%) |
| - black | 22 (7%) |
| Mean BMI (kg/m2) | 26.8 ± 4.0 |
| Diabetes | 52 (17%) |
| Hypertension | 179 (57%) |
| History of myocardial infarction | 45 (14%) |
| Smoking | |
| - non-smoker | 117 (37%) |
| - ex-smoker | 164 (52%) |
| - current smoker | 33 (11%) |
| Taking class Ia, Ib, and Ic antiarrhythmics | 10 (3%) |
| Taking class II antiarrhythmics | 1 (0.3%) |
| Taking class III antiarrhythmics | 0 (0%) |
| Taking class IV antiarrhythmics | 20 (6%) |
| PVC frequency (%) | 0.11 ± 0.28 |
| Mean PVC duration (ms) | 155.9 ± 24.3 |
| Mean coupling interval (ms) | 482.5 ± 73.5 |
| Mean coupling interval heterogeneity | 0.11 ± 0.06 |
BMI denotes Body Mass Index