Predictors of events during follow-up
| HR | P value | |
| Ventricle | ||
| End-diastolic volume reserve | 0.98 (0.93 to 1.03) | 0.437 |
| End-systolic volume reserve | 1.02 (0.95 to 1.08) | 0.647 |
| Stroke volume reserve | 0.95 (0.89 to 1.01) | 0.113 |
| Ejection fraction reserve (%) | 0.95 (0.89 to 1.02) | 0.148 |
| Early filling volume | 1.00 (0.91 to 1.11) | 0.939 |
| Atrial filling volume | 0.88 (0.77 to 1.01) | 0.070 |
| Deceleration time reserve (ms) | 1.00 (1.00 to 1.00) | 0.862 |
| E/A ratio reserve (unitless) | 1.18 (0.62 to 2.27) | 0.612 |
| Atria | ||
| Maximal volume reserve | 1.00 (0.95 to 1.04) | 0.888 |
| Minimal volume reserve | 1.00 (0.95 to 1.06) | 0.908 |
| Cyclic volume change reserve | 0.98 (0.89 to 1.07) | 0.608 |
| Early emptying volume reserve | 1.03 (0.90 to 1.17) | 0.700 |
| Late emptying volume reserve | 1.04 (0.92 to 1.18) | 0.508 |
| Conduit volume reserve | 0.94 (0.88 to 1.00) | 0.043 |
Cox proportional hazards models were used for survival analysis. Reserve is defined as the difference between measurements during dobutamine stress and resting values. All volumes are presented as mL/m2, indexed for body surface area. P values are shown unadjusted for multiple testing. No P values were considered statistically significant after adjusting for multiple testing.