Table 1.

Prevalence of hepatic injury among hepatic samples

Injury	Definition	Per cent (N samples)
Steatosis
Grade 0	0%	24.4% (57)
1	>0–5%	30.8% (72)
2	>5–33%	26.9% (63)
3	>33–66%	12.0% (28)
4	>66%	6.0% (14)
Sinusoidal injury
Grade 0	Nil	70.5% (165)
1	up to 1/3 lobular involvement	14.1% (33)
2	>1/3–2/3 lobular involvement	6.8% (16)
3	>2/3 to complete lobular involvement	8.6% (20)
Steatohepatitis
Presence	steatosis > 5%, NAFLD activity score* > 2	4.3% (10)

^*NAFLD activity score = sum of scores for: Mallory bodies + lobular inflammation + hepatocyte ballooning + perisinusoidal fibrosis (each factor scored 0 = absent, 1 = focal involvement of some lobules, 2 = focal involvement of most lobules, 3 = focal involvement of most or all, with diffuse involvement of some or most).²³