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. Author manuscript; available in PMC: 2021 Mar 20.
Published in final edited form as: Aliment Pharmacol Ther. 2015 Jun 29;42(5):582–590. doi: 10.1111/apt.13292

Table 2 |.

Biopsy and MRE characteristics by patient group

Normal (n = 15) Mild NAFL (n = 15) Moderate fibrosis (n = 15) Advanced fibrosis (n = 15) P* P
NAFLD Activity Score, (NAS)
   Mean (s.d.) 3.6 (1.0) 5.2 (0.9) 5.5 (1.2) <0.0001 <0.0001
   2 2 (13.3%) 0 0 0.0059
   3 5 (33.3%) 0 0
   4 5 (33.3%) 3 (20.0%) 4 (26.7%)
   5 3 (20.0%) 7 (46.7%) 4 (26.7%)
   6 0 4 (26.7%) 3 (20.0%)
   7 0 1 (6.7%) 4 (26.7%)
Lobular inflammation (score), (no. foci per 200 × field), n (%)
   None (0) 0 0 0 0.0004
   <2 foci (1) 10 (66.7%) 1 (6.7%) 2 (14.3%)
   2–4 foci (2) 5 (33.3%) 14 (93.3%) 10 (71.4%)
   >4 foci (3) 0 0 2 (14.3%)
Steatosis
  Grade, n (%)
   <5% (0) 0 1 (6.7%) 0 0.2244
   5–33% (1) 9 (60.0%) 3 (20.0%) 6 (40.0%)
   33–66% (2) 5 (33.3%) 8 (53.3%) 5 (33.3%)
   >66% (3) 1 (6.7%) 3 (20.0%) 4 (26.7%)
Ballooning (score), n (%)
   None (0) 6 (40.0%) 1 (6.7%) 0 0.0010
   Few (1) 7 (46.7%) 9 (60.0%) 3 (21.4%)
   Many (2) 2 (13.3%) 5 (33.3%) 11 (78.6%)
MRE, mean (s.d.) 2.2 (0.3) 2.3 (0.3) 2.8 (0.3) 5.6 (1.3) <0.0001 <0.0001
*

Continuous variables were analysed with ANOVA, categorical variables were analysed with Fisher’s exact test. The P values in bold are statistically significant.

Test of linear trend.