ADIPOQ and type 2 diabetes mellitus: In the subgroup analysis stratified by T0, the association between adiponectin −11377CG gene polymorphism and T2DM was strengthened but not significant in subgroup 1 (OR: 2.170, 95% CI: 0.840–5.590, P = 0.11) and in subgroup 2 (OR: 1.260, 95% CI: 0.460–3.480, P = 0.65).