Table 1.

Histological grading of steatosis, inflammation and staging of fibrosis.

Steatosis	Grades
	0	˂ 5% steatosis
	1	5–25% steatosis
	2	26–50% steatosis
	3	51–75% steatosis
	4	More than 75% steatosis
Inflammation	Grades
	0	None
	1	Focal collection of mononuclear cells
	2	Diffuse infiltrates of mononuclear cells
	3	Focal collection of polymorphonuclear cells
	4	Diffuse infiltrates of polymorphonuclear
Fibrosis	Stages
	F0	No evidence of fibrosis
	F1	Mild fibrosis
	F2	Moderate fibrosis
	F3	Advanced fibrosis