Table 2

 VEP features in HIV infected patients with neurological manifestations (symptomatic patients), without neurological manifestations (asymptomatic patients), and laboratory reference values

Symptomatic patients (n = 75)Asymptomatic patients (n = 53)References
*Significantly different from reference values, †significantly different from asymptomatic patients, ‡not significantly different from asymptomatic patients.
Abnormal VEPs, n (%)43 (57%)‡22 (42%)
Mean latency (SD) (ms)115 (14)*,†109 (9)*100 (5)
Mean amplitudes (SD) (μV)8 (3)*,†9 (5)*15 (5)