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Changes in histologic categories (improved, stable, or worse) after a 12-week diet or exercise intervention. Any increase or decrease in score was considered a change in category. (A) Fibrosis, (B) ballooning, (C) steatosis, (D) NAFLD activity, (E) lobular inflammation, and (F) Brunt activity scores. The percent of patients in each category are shown numerically within each category of the bar graph. * p <0.05, ** p <0.01 from baseline, Wilcoxon matched pairs signed-rank test.
