Fig. 2

Receiver-operator characteristic (ROC) curve for the multivariable predictive model of one-year mortality in patients with AAD. Area under the ROC curve (AUC) (P value) was 0.906 (P < 0.001). Full: Full model from observed data; MFP: Multiple fractional polynomial models from observed data; Stepwise: Stepwise selected model from observed data; p < 0.0001. AUC, area under curve; ROC, receiveroperating characteristic