INS and type 2 diabetes mellitus: However, serum fetuin-A concentrations were not significantly different between the participants with NGT and those with IGR and among all sub-groups with IGR, including Iso-IFG, Iso-IGT, IFG and IGT group (Iso-IFG vs Iso-IGT, 290.7 vs 290.5 mg/l, P = 0.46; Iso-IFG vs IFG and IGT, 290.7 vs 291.0 mg/l, p = 0.95; Iso-IGT vs IFG and IGT, 290.5 vs 291.0 mg/l, p = 0.79) Among 1598 type 2 diabetic patients, 611 were given the treatment of oral antidiabetic drugs or insulin injection.