Multivariable model after backward selection for predicting 30-day mortality in patients who underwent aortic valve replacement
| Covariate | Parameter | Standard error | OR (95% CI) |
|---|---|---|---|
| Intercept | −6.4791 | 0.6230 | 0 (0.00–0.01) |
| Sex, female | 0.3500 | 0.4091 | 1.42 (0.64–3.16) |
| Hospital Frailty Risk Score | |||
| 0 to < 1.0 | Ref. | ||
| 1.0 to 3.0 | 0.0775 | 0.7554 | 1.08 (0.25–4.75) |
| > 3.0 | 1.4117 | 0.5332 | 4.10 (1.44–11.67) |
| Leukocytes, per 103 | 0.1191 | 0.0459 | 1.13 (1.03–1.23) |
| Liver disease | 1.8277 | 0.7377 | 6.22 (1.46–26.41) |
| Shock; preoperative ECMO, IABP or CBA; resuscitation within 1 day or on admission; or ventricular tachycardia or fibrillation within 30 days | 3.3448 | 0.4437 | 28.36 (11.88–67.66) |
Note: CBA = catheter-based assist device, CI = confidence interval, ECMO = extracorporeal membrane oxygenation, IABP = intra-aortic balloon pump, OR = odds ratio, Ref. = reference category.