Hyperammonemia Is Associated with Increasing Severity of Both Liver Cirrhosis and Hepatic Encephalopathy

Table 6

Chi-square test statistics of distribution of hyperammonemia across different grades of hepatic encephalopathy (HE).

HE Grade	Patients (%) with hyperammonemia	-score
No HE	1.7%	−6.4
Grade 1	15.7	−3.7
Grade 2	22.6	0.2
Grade 3	34.8	5
Grade 4	25.2	4.1
value	, , Phi = 0.68, and