Clinical features of NC patients in 1994 and 2004.

All values are proportions and expressed as percentages, unless designated as a mean(‡). 95% confidence intervals are presented in parentheses.*9 patients did not harbor a cysticercus at the time of diagnosis in INNN, some of them only showed arachnoiditis and others had been treated before in other hospitals.**SAb: SubArachnoidal space of the base of the skull/V: Ventricular/P: Parenchymal/Sas: SubArachnoidal space of the sulci.***Lumbar puncture was performed at time of diagnosis in only 79 NCC patients in 1994, and in 79 patients in 2004.