	Cirrhotic patients with No HE N = 17	Cirrhotic patients with MHE N = 13	Healthy controls N = 30	P value
	Cirrhotic patients with No HE N = 17	Cirrhotic patients with MHE N = 13	Healthy controls N = 30	No HE versus healthy controls	MHE versus healthy controls	No HE versus MHE
Age (years)	50.29 ± 7.36	49.23 ± 4.01	50.80 ± 10	0.844	0.467	0.617
Sex: male/female	7/10	8/5	16/14	0.423	0.619	0.269
Serial dotting test (sec)	142.0 ± 64.99	164.46 ± 56.42	68.40 ± 15.86	0.000^***	0.000^***	0.330
Line tracing test (sec)	196.24 ± 105.16	193 ± 69.77	95.17 ± 31.56	0.001^**	0.000^***	0.920
Number of errors	5.88 ± 3.21	11.23 ± 11.70	5.90 ± 7.35	0.991	0.148	0.133
P300 latency (m.sec)	300.76 ± 9.14	338.23 ± 16.81	294.3 ± 7.41	0.483	0.000^***	0.000^***
Serum zinc (PPM)	0.36 ± 0.20	0.25 ± 0.19	0.68 ± 0.37	0.000^***	0.000^***	0.136