Validation of a Simple Score for Mortality Prediction in a Cohort of Unselected Emergency Patients

Figure 3

Receiver operating characteristic (ROC) curves. This figure shows ROC curves for emergency severity index (ESI) and the simple prognostic score (SPS) for 7-day, 30-day, and 1-year mortality. The ESI level was coded inversely for the ROC curve to lie above the diagonal. SPS, simple prognostic score,; ESI, emergency severity index; AUC, area under the curve.