Procalcitonin Levels in Gram-Positive, Gram-Negative, and Fungal Bloodstream Infections

Figure 4

Receiver operating characteristic (ROC) curve of different cut-offs of PCT in differentiating Enterobacteriaceae from nonfermentative Gram-negative bacteria (AUC 0.691, 95% CI 0.593–0.789, ). Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), positive likelihood ratio (+LR), and negative likelihood ratio (−LR) of different cut-off values are reported.