Event-related evoked potential versus clinical tests in assessment of subclinical cognitive impairment in chronic hepatitis C virus

Table 4 Frequency of abnormal P300 peak-evoked potential latency between HCV patients and control groups

P300 latency	Controls N = 30	Chronic hepatitis			P
P300 latency	Controls N = 30	F0-F1 N = 10	F2 N = 26	F3 N = 24	P
Normal	30 (100%)	6 (60%)	6 (23.08%)	4 (16.7%)	0.029
Abnormal	–	4 (40%)	20 (76.92%)	20 (83.3%)	0.029