Figure 1From: Incidence of low central venous oxygen saturation during unplanned admissions in a multidisciplinary intensive care unit: an observational studyReceiver 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.Back to article page