Table 2. Predictors of Survival in Patients with Positive Stress Tests.
| Variables | Univariate p Value | Univariate Hazard Ratio with 95% Confidence Interval | Multivariate p Value | Multivariate Hazard Ratio with 95% Confidence Interval |
|---|---|---|---|---|
| Age (years) | <0.0001 | 1.09 (1.07–1.10) | <0.0001 | 1.08 (1.05–1.11) |
| Significant CAD | 0.005 | 1.51 (1.15–2) | 0.001 | 1.96 (1.30–2.80) |
| LV ejection fraction (%) | 0.007 | 0.987 (0.978–0.996) | – | – |
| LV end-systolic diameter (cm) | 0.0001 | 1.37 (1.17–1.61) | – | – |
| Ventricular septal thickness (cm) | 0.0008 | 2.0 (1.3–3.1) | – | – |
| PA systolic pressures (mm Hg) | <0.0001 | 1.05 (1.04–1.07) | – | – |
| Resting systolic blood pressures (mm Hg) | 0.002 | 1.011 (1.004–1.019) | – | – |
| Resting pulse pressure (mm Hg | <0.0001 | 1.02 (1.01–1.03) | – | – |
| Stress heart rate (bpm) | <0.0001 | 0.98 (0.97–0.99) | 0.002 | 0.98 (0.97-0.99) |
| MET level reached | <0.0001 | 0.87 (0.83–0.91) | 0.02 | 0.91 (0.83–0.99) |
| Delta heart rate (bpm) | <0.0001 | 0.98 (0.97–0.99) | – | – |
| Delta systolic blood pressures (mm Hg) | 0.0001 | 0.987 (0.981-0.994) | – | – |
CAD, coronary artery disease; LV, left ventricular; PA, pulmonary artery; bpm, beats per minute; MET, metabolic equivalent.