Table 5.
Cox regression analyses.
| Univariable Cox regression | Multivariable Cox regression | |||||
|---|---|---|---|---|---|---|
| HR | 95% CI | P | HR | 95% CI | P | |
| Age | 1.027 | 1.011-1.043 | 0.001 | 1.004 | 0.988-1.021 | 0.587 |
| Hemorrhagic shock | 2.124 | 1.444-3.123 | <0.001 | 1.824 | 1.217-2.735 | 0.004 |
| Contrast leak in CT† | 2.102 | 1.134-3.897 | 0.018 | |||
| Aneurysm size† | 1.155 | 1.044-1.279 | 0.005 | |||
| Sepsis | 1.900 | 1.291-2.795 | 0.001 | 1.714 | 1.112-2.641 | 0.015 |
| Multiorgan failure | 3.544 | 1.872-6.710 | <0.001 | 3.060 | 1.470-6.368 | 0.003 |
| Aortic rupture | 3.186 | 1.289-7.786 | 0.012 | 2.410 | 0.949-6.117 | 0.064 |
| Conservative treatment | 6.570 | 4.459-9.681 | <0.001 | 5.257 | 3.405-8.116 | <0.001 |
| Aortic graft+esophagectomy | 0.214 | 0.099-0.460 | <0.001 | 0.319 | 0.125-0.813 | 0.017 |
| TEVAR+aortic graft±esophageal treatments | 0.424 | 0.186-0.968 | 0.042 | 0.493 | 0.172-1.415 | 0.189 |
AEF: aortoesophageal fistula; TEVAR: thoracic endovascular aortic repair; CT: computed tomography; HR: hazard ratio; CI: confidence interval.
†Contrast leak in CT and aneurysm size were excluded from multivariate regression analysis due to the lack of information in more than 15% of patients with AEF.