Figure 1. Receiver Operator Characteristic (ROC) curves of CSF biomarkers. Areas under the curve (AUC) of cerebrospinal fluid markers of bacterial meningitis were: CSF lactate (AUC 0.944; 95% CI 0.929 – 0.959), CSF leukocytes (AUC 0.620; 95% CI 0.588 – 0.653), CSF protein (AUC 0.889; 95% CI 0.869 – 0.909) and CSF glucose (AUC 0.225; 95% CI 0.196 – 0.254).