TABLE 5.
Multivariate analysis for delirium in patients undergoing surgical aortic valve replacement.
| Variable | Odds ratio | 95% Confidence interval | P value |
|---|---|---|---|
| Age (per 1 year) | 1.043 | 1.010–1.078 | .011 |
| Society of Thoracic Surgeons predicted risk of mortality score (per 1 point) | 0.980 | 0.904–1.064 | .630 |
| Previous percutaneous coronary intervention (yes) | 1.531 | 0.761–3.078 | .230 |
| New York Heart Association functional class III–IV (yes) | 1.217 | 0.607–2.443 | .580 |
| Lung disease moderate/severe (yes) | 1.608 | 0.652–3.970 | .300 |
| Preoperative hemoglobin (per 1 unit) | 0.841 | 0.699–1.012 | .070 |
| Mitral regurgitation moderate/severe (yes) | 2.939 | 1.176–7.344 | .021 |
| Intraoperative packed red blood cells (yes) | 1.034 | 0.435–2.460 | .940 |
| Preoperative intra-aortic balloon pump (yes) | 3.509 | 0.878–14.027 | .080 |
| Intubation time < 24 h (yes) | 0.400 | 0.161–0.996 | .049 |