Table 2.
Accuracy measures with the cut off points of HBP and old markers in prediction of bacterial meningitis.
| Biomarker | Cutoff | Sensitivity | Specificity | Overall accuracy (area under the curve 95% C.I) | p value |
|---|---|---|---|---|---|
| CSF WBCs | 877.5 cells/mm3 | 63.3% | 100% | 91.1% (85.1–97.1%) | 0.000 |
| CSF neutrophils % | 59% | 100% | 97% | 99.7% (99.1–100%) | 0.000 |
| CSF protein | 45.5 mg/dl | 83.3% | 70% | 84.6% (76.2–93%) | 0.000 |
| CSF Glucose | 39.5 mg/dl | 50% | 100% | 82.5% (71.7–92.8) | 0.000 |
| CSF Lactate | 29.5 mg/dl | 90% | 87% | 92.7% (86.1–99.4%) | 0.000 |
| CSF HBP | 56.7 ng/ml | 100% | 100% | 100% | 0.000 |
| Serum HBP | 45.3 ng/ml | 100% | 100% | 100% | 0.000 |