Table 1.

Criteria for NAFLD activity scoring

Item	Score	Extent
Steatosis	0	<5%
	1	5%–33%
	2	>33%–66%
	3	>66%
Lobular inflammation	0	No foci
	1	<2 foci/200x
	2	2–4 foci/200x
	3	>4 foci/200x
Hepatocyte ballooning	0	None
	1	Few balloon cells
	2	Many cells/prominent ballooning