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Figure 1 | Critical Care

Figure 1

From: Malabsorption and nutritional balance in the ICU: fecal weight as a biomarker: a prospective observational pilot study

Figure 1

ROC curves for diagnostic accuracy of fecal weight (grams/day) to diagnose malabsorption in ICU patients. The receiver operator characteristic curves (ROCs) for diagnostic accuracy of different cut-off points of fecal wet weight (FWW) (ranging from 230 to 400 g/day) as a biomarker for malabsorption. Based on these ROC curves, the diagnostic accuracy of daily fecal weight of 350 g was most optimal, showing sensitivity of 80%; specificity, 96%; positive predictive value (PPV), 80%; and a negative predictive value (NPV) of 96%. Additionally, the accompanying area under the curve (AUC) and the Youden Index indicated that 350 g FWW was the best cut-off value for energy malabsorption.

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Critical Care

ISSN: 1364-8535