Variable

Optimum critical value

Sensitivity (%)

Specificity (%)

Youden index

AST (U/L)

72

0.864

0.15

0.714

LDH (U/L)

348.5

0.909

0.1

0.809

CSF protein (g/L)

0.39

0.682

0.0

0.682

CSF LDH (U/L)

31.5

0.682

0.05

0.632