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Receiver operating characteristic (ROC) analysis of the prediction of in-hospital mortality. (A) ROC curve of age and laboratory biomarkers. (B) Area under the ROC curve (AUC) with 95% confidence interval (CI) of each variable. CK-MB, creatine kinase-myocardial band; hs-TnI, high sensitivity-cardiac troponin I; hs-CRP, high-sensitivity C-reactive protein.
