Table 2.

Predictive parameters for definite or probable neurosyphilis

Parameter	Odds ratio	p value*
Serum-RPR-titre ≥32	1.53	0.383
CD4+ cell count ≤350/µl	1.1	0.612
Blood-CSF barrier disturbance in HIV-negatives	9	0.018**
Blood-CSF barrier disturbance in HIV-positives	6	0.027**
Albumin quotient >7.8 mg/dl in HIV-negatives	8.0	0.026**
Albumin quotient >7.8 mg/dl in HIV-positives	23.3	0.006**
Pleocytosis >5 cells/µl in HIV-negatives	6.7	0.006**
Pleocytosis >5 cells/µl in HIV-positives	8.3	0.015**
ITPA index >2 in HIV-negatives	7.6	0.025**
positive IgM-FTA-ABS test in HIV-negatives	13.1	0.022**

Predictive parameters and their p values and odds ratios concerning neurosyphilis

* p values are calculated with binary logistic regression

** Coefficient significant (5 %)