Table 3 The AUCs of the ROC curves for the nomogram and variables from the logistic regression model for the development group and validation group
| Â | Development group | Validation group | ||||
|---|---|---|---|---|---|---|
AUC | 95%CI | P value | AUC | 95%CI | P value | |
Nomogram variable | 0.900 | 0.885–0.913 | < 0.001 | 0.908 | 0.876–0.935 | < 0.001 |
Age | 0.707 | 0.685–0.728 | < 0.001 | NA | NA | NA |
Weight | 0.700 | 0.678–0.721 | < 0.001 | NA | NA | NA |
RACHS-1 | 0.721 | 0.700–0.742 | < 0.001 | NA | NA | NA |
Preoperative hospital stay | 0.683 | 0.661–0.704 | < 0.001 | NA | NA | NA |
Cardiopulmonary bypass time | 0.786 | 0.766–0.804 | < 0.001 | NA | NA | NA |
Intraoperative blood transfusion | 0.658 | 0.636–0.680 | < 0.001 | NA | NA | NA |