Table 3.
Cardiopulmonary Exercise Testing Data
| Characteristic | All (n=1340) | AF (n=220) | No AF (n=1120) | P Value |
|---|---|---|---|---|
| VO2 predicted, % | 65 (20) | 60 (20) | 65 (19) | <0.001 |
| Peak VO2, mL/kg per minute | 20 (7) | 17 (6) | 21 (7) | <0.001 |
| Peak double product, mm Hg×beats/min | 19 635 (7015) | 17 205 (6416) | 20 129 (7034) | <0.001 |
Cardiopulmonary exercise data were available for only a subset of the examined population. Variables are shown as mean (SD). AF indicates atrial fibrillation.