Box plot of necroinflammatory degrees corresponding to the METAVIR fibrosis (F) stages. The Spearman’s rank correlation coefficients were 0.196 (P = .027) between serum alanine aminotransferase (ALT) levels and METAVIR F stages (A); 0.305 (P < .001) between ActiTest A scores and METAVIR F stages (B). Pair-wise comparisons of ActiTest A scores showed significant differences between groups F1, F2, and F3: all P < .005.
Chen et al. BMC Gastroenterology 2012 12:105 doi:10.1186/1471-230X-12-105