| CSF parameters | Serum parameters | CSF/serum ratio | |||||
---|---|---|---|---|---|---|---|---|
 | Neutrophil/mm3 | Protein g/L | Glucose mmol/L | Lactate mmol/L | PCT ng/ml | CRP mg/l | Glucose CSF/serum | Lactate CSF/serum |
AUC | 0.86 | 0.93 | 0.69 | 0.96 | 0.99 | 0.92 | 0.87 | 0.84 |
[CI 95%] | [0.86-0.94] | [0.92-0,98] | [0.69-0.76] | [0.95-1] | [0.99-1] | [0.92-0.98] | [0.86-0.91] | [0.84-0.93] |
Optimal cut-point | 118 | 1.88 | 2.2 | 3.8 | 0.28 | 37 | 0.48 | 2.22 |
Sensitivity | 0.80 | 0.89 | 0.97 | 0.94 | 0.97 | 0.86 | 0.84 | 0.79 |
Specificity | 0.85 | 0.93 | 0.49 | 0.97 | 1 | 0.84 | 0.89 | 0.89 |
Positive predictive value | 0.47 | 0.67 | 0.92 | 0.82 | 0.97 | 0.46 | 0.98 | 0.52 |
Negative predictive value | 0.96 | 0.98 | 0.71 | 0.99 | 1 | 0.97 | 0.66 | 0.97 |
Global value | 0.84 | 0.92 | 0.90 | 0.96 | 0.99 | 0.84 | 0.76 | 0.87 |