Table 2.
Multivariate logistic regression analysis of variables selected with LASSO for predicting AKI
| Variables | β | SE | P | OR | 95% CI |
|---|---|---|---|---|---|
| Preoperative | |||||
| Serum creatinine (µmol/L) | 0.010 | 0.005 | .051 | 1.010 | 1.000, 1.020 |
| Hypertension | 0.831 | 0.224 | <.001 | 2.296 | 1.479, 3.564 |
| Uric acid (μmol/L) | 0.003 | 0.001 | .001 | 1.003 | 1.001, 1.005 |
| NYHA classification III or IV | 0.400 | 0.198 | .044 | 1.492 | 1.011, 2.200 |
| Intraoperative | |||||
| CPB time >120 min | 0.881 | 0.210 | <.001 | 2.412 | 1.599, 3.639 |
| Erythrocyte transfusion (U) | 0.273 | 0.074 | <.001 | 1.314 | 1.137, 1.518 |
| Postoperative | |||||
| Prolonged MV | 1.178 | 0.245 | <.001 | 3.247 | 2.008, 5.249 |
| Constant | −3.538 | 0.559 | <.001 | 0.029 |
Abbreviations: CI, confidence interval; CPB, cardiopulmonary bypass; cardiopulmonary bypass; MV, mechanical ventilation; NYHA, New York Heart Association; OR, odds ratio; SE, standard error.