Table 2.

Outcomes of the hyperammonemia and non-hyperammonemia groups.

Outcome	Hyperammonemia group n = 443	Non-hyperammonemia group n = 608	p-values
Mechanical ventilation, n (%)	250(56.4)	326(53.6)	0.365
Renal replacement therapy, n (%)	33(7.4)	29(4.8)	0.055
Vasopressors, n (%)
Norepinephrine	100(22.6)	122(20.1)	0.325
Dopamine	42(9.5)	50(8.2)	0.476
Epinephrine	13(3.0)	23(3.8)	0.455
Delirium, n (%)	60(13.5)	98(16.1)	0.249
Encephalopathy, n (%)	111(25.1)	154(25.3)	0.920
Cerebral edema, n (%)	10(2.3)	18(3.0)	0.485
Coma, n (%)	41(9.3)	64(10.5)	0.479
Length of stay, median [IQR]
In ICU	3.9(1.8–10.8)	3.5(1.8–9.0)	0.328
In hospital	12(6–22)	12(6–23)	0.382
Mortality, n (%)
30 day	102(23.0)	110(18.1)	0.049
90 day	141(31.8)	178(29.3)	0.643
1 year	190(42.9)	248(40.8)	0.495

ICU, intensive care unit; p < 0.05 = statistically significant.