Table 1. Comparison of Different ALF Etiology Groups.

Clinical and demographic features of acute liver failure according to etiologic groups. Acetaminophen-related ALF is considered hyperacute and demonstrates the very high aminotransferase and low bilirubin levels, compared to drug-induced liver injury which is more indolent.

	APAP n=787	Drug n=202	Indeterminate n=219	HepA/HepB n=37/123	All Others N=328
Age (median)	37	47	38	48/43	45
Sex (% F)	76	66	60	46/45	73
Jaundice (Days) (median)	0	8	8	3/5	4
Coma ≥3 (%)	53	37	50	51/55	43
ALT (median)	3846	685	849	2124/1702	677
Bili (median)	4.4	19.8	22.0	12.5/19.1	14.6
Tx (%)	9	40	45	32/41	30
Spontaneous Survival (%)	67	31	27	54/24	38
Overall Survival (%)	75	68	69	84/61	65