Table 1.

NAFLD activity score (NAS) by NASH-CRN (22)

score	steatosis	inflammation	ballooning
0	<5%	No foci	None
1	5-33%	<2 foci	Few (≤4)
2	>33-66%	2-4 foci	Many (>4)
3	>66%	>4 foci