TABLE 3.
Independent predictors of events. Univariate and multivariate Cox analysis
| Variables | Univariates analysis | Multivariate Analysis | ||||
|---|---|---|---|---|---|---|
| Risk of new aortic events during follow‐up | ||||||
| Hazard Ratio | Chi‐Square | p | Hazard Ratio | 95% CI | p | |
| Age | 0.99 | 0.41 | 0.51 | |||
| Gender | 4.91 | 0.026 | ||||
| Stroke Volume | 1.01 | 2.12 | 0.14 | |||
| Hemoglobin | 1.06 | 0.52 | 0.47 | |||
| Percentage of predictive maximal Workload | 0.99 | 1.87 | 0.17 | |||
| LVED diameter > 50 mm | 5.73 | 0.016 | 2.81 | [1.41–5.60] | 0.003 | |
| Descending aorta diameter > 40 mm | 13.37 | 0.0003 | 3.42 | [1.58–7.36] | 0.001 | |
| Peak oxygen uptake<70% predicted value | 7.59 | 0.0059 | ||||
| Peak oxygen pulse<85% predicted value | 8.13 | 0.004 | 2.35 | [1.09–5.04] | 0.027 | |
| Type A aortic dissection | 0.37 | 0.54 | ||||
| Risk of nonaortic major cardiovascular events during follow‐up | ||||||
| Hazard Ratio | Chi‐Square | p | Hazard ratio | 95% CI | p | |
| Age | 0.99 | 0.08 | 0.76 | |||
| Gender | 3.42 | 0.06 | ||||
| Smoking | 0.91 | 0.63 | ||||
| 24‐h SBP > 135 mmHg | 9.94 | 0.0016 | 4.61 | [1.76–12.1] | 0.002 | |
| Percentage of peak oxygen pulse | 0.98 | 2.08 | 0.15 | |||
| Peak oxygen uptake<70% predicted value | 7.59 | 0.0059 | 4.31 | [1.63–11.3] | 0.003 | |
| Type A aortic dissection | 3.79 | 0.05 | ||||
Abbreviations: LVED, left ventricular end‐diastolic diameter; SBP, systolic blood pressure.