Multivariable predictors of death while awaiting surgery
| Variable | Model β-coefficient | OR (95% CI) | Wald χ2 |
|---|---|---|---|
| Demographic characteristics | |||
| Age | 0.0325 | 1.03 (1.02–1.05) | 27.0617 |
| Female sex | 0.0384 | 1.04 (0.79–1.36) | 0.0774 |
| Comorbidities | |||
| CCS grading of angina pectoris41 | |||
| 0 | Reference | Reference | Reference |
| 1 | −0.0793 | 0.92 (0.59–1.46) | 0.1159 |
| 2 | −0.0537 | 0.95 (0.61–1.47) | 0.0582 |
| 3 | −0.0842 | 0.92 (0.58–1.46) | 0.1280 |
| 4 | 0.3933 | 1.48 (0.78–2.82) | 1.4389 |
| Low-risk acute coronary syndrome | −0.1812 | 0.83 (0.51–1.35) | 0.5365 |
| Intermediate-risk acute coronary syndrome | 0.0792 | 1.08 (0.66–1.77) | 0.1002 |
| High-risk acute coronary syndrome | 0.4167 | 1.52 (0.74–3.11) | 1.2934 |
| Left main coronary artery or left main coronary artery equivalent disease | 0.2452 | 1.28 (0.98–1.76) | 2.2699 |
| Left ventricular ejection fraction, % | |||
| ≥ 50 | Reference | Reference | Reference |
| 35–49 | 0.6926 | 2.00 (1.49–2.69) | 20.9352 |
| 20–35 | 0.9147 | 2.50 (1.72–3.62) | 23.2995 |
| < 20 | 1.0086 | 2.74 (1.39–5.43) | 8.3881 |
| Heart failure | 0.5546 | 1.74 (1.31–2.31) | 14.8925 |
| Atrial fibrillation | −0.5502 | 0.58 (0.42–0.79) | 11.6325 |
| Dialysis | 1.3167 | 3.73 (2.56–5.44) | 47.0533 |
| Psychosis | 1.6878 | 5.41 (1.70–17.19) | 8.1826 |
| Operative characteristics | |||
| Surgery type | |||
| Isolated CABG | Reference | Reference | Reference |
| Valvular | 0.7432 | 2.10 (1.33–3.32) | 10.1776 |
| CABG + valvular | 0.8396 | 2.32 (1.58–3.40) | 18.2858 |
| Thoracic aorta | 0.0213 | 1.02 (0.42–2.49) | 0.0022 |
| Operative priority | |||
| Unknown | 0.7940 | 2.21 (1.42–3.45) | 12.2517 |
| Emergent | 0.3014 | 1.35 (0.60–3.04) | 0.5335 |
| Urgent | −0.0096 | 0.99 (0.65–1.50) | 0.0021 |
| Semiurgent | −0.0391 | 0.96 (0.62–1.49) | 0.0309 |
| Elective | Reference | Reference | Reference |
Note: CABG = coronary artery bypass grafting, CCS = Canadian Cardiovascular Society, CI = confidence interval, OR = odds ratio.