Table 3.
Frequency | Observed Mortality (%) | Unadjusted OR (95% CI) | Adjusted OR (95% CI) | |
---|---|---|---|---|
Aortic segmenta | ||||
Root/ascending aorta | 6848 | 8.3 | Reference | Reference |
Aortic arch | 762 | 13.3 | 1.75 (1.42, 2.16) | 1.86 (1.47, 2.35) |
Descending aorta | 320 | 15.3 | 1.86 (1.38, 2.51) | 2.30 (1.66, 3.18) |
Thoracoabdominal aorta | 128 | 22.7 | 1.91 (1.18, 3.09) | 2.75 (1.67, 4.56) |
Activity tertileb | ||||
Low‐volume (latest 3 years' activity) | 1308 | 10.6 | Reference | Reference |
Medium‐volume (latest 3 years' activity) | 2159 | 9.5 | 0.89 (0.71, 1.12) | 0.80 (0.62, 1.02) |
High‐volume (latest 3 years' activity) | 4591 | 8.8 | 0.82 (0.67, 1.00) | 0.76 (0.60, 0.95) |
Dominant pathologyc | ||||
Aneurysm | 4422 | 4.9 | Reference | Reference |
Dissection | 1819 | 17.2 | 4.07 (3.39, 4.89) | 2.27 (1.82, 2.82) |
Other | 1284 | 13.2 | 2.97 (2.40, 3.67) | 2.05 (1.61, 2.61) |
Data N/A | 533 | 9.6 | 2.07 (1.50, 2.85) | 1.78 (1.26, 2.52) |
Priorityb | ||||
Elective | 5117 | 4.8 | Reference | Reference |
Nonelective | 2941 | 17.1 | 4.08 (3.47, 4.78) | 2.54 (2.09, 3.08) |
Adjusted for preoperative comorbidities, operative risk factors, and activity tertile.
Adjusted for preoperative comorbidities, operative risk factors, and most distal aortic segment.
Adjusted for preoperative comorbidities, operative risk factors, most distal aortic segment, and activity tertile.