OGN and type 2 diabetes mellitus: Moreover, no significant differences in serum osteoglycin levels were found between males and females in the T2D group [1,079 (1,366–2,444) pg/mL vs. 1,953 (1,606–2,449) pg/mL, P = 0.082] and the control group [864 (756–1,047) pg/mL vs. 950 (798–1,247) pg/mL, P = 0.060; Fig. 1A].