Table 2.
Independent risk factors included in the UK aortic score
| Characteristic | OR | 95% CI | P-value |
|---|---|---|---|
| Age | 1.02 | 1.02–1.03 | <0.001 |
| Malperfusiona | 1.79 | 1.51–2.12 | <0.001 |
| LVEF | |||
| Good (≥50%) | – | – | |
| Moderate (30–49%) | 1.40 | 1.14–1.71 | 0.001 |
| Poor (<30%) | 2.83 | 1.89–4.20 | <0.001 |
| Previous cardiac surgery | 2.29 | 1.70–3.06 | <0.001 |
| Preoperative ventilation | 2.76 | 1.99–3.79 | <0.001 |
| Preoperative resuscitation | 3.36 | 1.16–10.4 | 0.028 |
| CABG | 2.29 | 1.85–2.82 | <0.001 |
CABG, coronary artery bypass grafting; CI, confidence interval; LVEF, left ventricular ejection fraction; OR, odds ratio.
a
Defined as one of the following conditions: coronary malperfusion, renal malperfusion, cardiogenic shock (cardiac tamponade, low cardiac output), cerebral perfusion (cerebrovascular accident in the previous 24 h), and any pulse deficit/limb ischaemia.