Receiver operator characteristic (ROC) analysis of central venous oxygen saturation (ScvO2) and Simplified Acute Physiology Score (SAPS II). Outcome parameter for ROC curves of (a) ScvO2 and (b) SAPS II was 28-day mortality. Area under the curve (A) values were 0.53 for ScvO2 and 0.89 for SAPS II.
Bracht et al. Critical Care 2007 11:R2 doi:10.1186/cc5144