Fig 2.

AUROC comparisons by ECM for predicting inhospital mortality at index [A] and at 1 year [B] in high risk patients, and inhospital mortality at index [C] and at 1 year [D] in low risk patients. High risk patients had one or more inpatient stay in the 12 months preceding the index encounter or three or more emergency department visits in the 3 months preceding the index encounter. Patients that did not satisfy the high-risk criteria were assigned to the low risk group. ROC = receiver operating characteristic, AUROC = area under the receiver operating characteristic.