INS and type 1 diabetes mellitus: Comparatively, the T1DM group also differed from T2DM group in FPGC-peptide (P = 3.90 × 10-5, Wilcoxon test), FPG (P = 0.006, Wilcoxon test), and insulin (P = 0.0037, Wilcoxon test) (Table 1).