The CCL20 level of each fibrosis group was also statistically higher (one-way analysis-of-variance-by-ranks Kruskal–Wallis test with Dunn’s adjusted p value p < 0.0001) than the normal group (normal 2.2 pg/ml, grade 1 fibrosis 19.3 pg/ml, grade 2 fibrosis 17.1 pg/ml, grade 3 fibrosis 24.7 pg/ml, grade 4 fibrosis 32.9 pg/ml). This evidence concerns the gene CCL20 and fibrosis.