IL6 and type 2 diabetes mellitus: The serum levels of IL-6 were significantly elevated in the CAD (8.31 ± 3.56 pg/mL) and T2DM (8.96 ± 3.33 pg/mL) groups compared to the control group (5.37 ± 1.8 pg/mL) (p < 0.001 for both).