GPT and diabetes mellitus: By comparing with patients in the non-progressive liver fibrosis subgroup,patients with advanced liver fibrosis were older, with longer course of diabetes,and the fact that the levels of AST, CR, UA and CysC were very high, but the amount of ALT and 25-(OH) D were much lower in patients in the advanced liver fibrosis subgroup (p < 0.05 or p < 0.01) .