The ORs of variables included in the LASSO-logistic regression analysis to predict in-hospital mortality in the training set, and their optimal cut-off values determined by Youden’s Index
| Variables | OR (95% CI) | Cut-off values |
| ALB | 0.93 (0.91 to 0.94) | 40 g/L |
| LDH | 1.0003 (1.0002 to 1.0005) | 452 U/L |
| Lactate | 1.08 (1.04 to 1.13) | 3.2 mmol/L |
| Urea | 1.11 (1.07 to 1.16) | 5.6 mmol/L |
| Arterial PH | 0.25 (0.08 to 0.78) | 7.3 |
| Glucose | 1.06 (1.03 to 1.09) | 6.9 mmol/L |
ALB, albumin; LASSO, least absolute shrinkage and selection operator; LDH, lactate dehydrogenase.