Multivariable model after backward selection for predicting 30-day mortality in patients who underwent combined coronary artery bypass graft surgery and aortic valve replacement
| Covariate | Parameter | Standard error | OR (95% CI) |
|---|---|---|---|
| Intercept | −1.5823 | 1.3567 | 0.21 (0.01–2.94) |
| Sex | 0.1718 | 0.3568 | 1.19 (0.59–2.39) |
| Hospital Frailty Risk Score | |||
| 0 to < 1.0 | Ref. | ||
| 1.0 to 3.0 | 0.8814 | 0.7403 | 2.41 (0.57–10.30) |
| > 3.0 | 2.0618 | 0.6146 | 7.86 (2.36–26.22) |
| Hematocrit, per 10% | −0.9301 | 0.3026 | 0.39 (0.22–0.71) |
| Previous CABG | 0.9574 | 0.6593 | 2.60 (0.72–9.48) |
| Shock; preoperative ECMO, IABP, or CBA; resuscitation within 1 day or on admission; or ventricular tachycardia or fibrillation within 30 days | 2.2722 | 0.4094 | 9.70 (4.35–21.64) |
Note: CABG = coronary artery bypass graft, CBA = catheter-based assist device, CI = confidence interval, ECMO = extracorporeal membrane oxygenation, IABP = intra-aortic balloon pump, OR = odds ratio, Ref. = reference category.