KCNJ11 and type 2 diabetes mellitus: We found a significant relationship between KCNJ11 rs5210 A ⟶ G gene polymorphism and T2DM risk under the dominant (OR, 2.07; 95% CI, 1.30–3.27; p − 0.001) and codominant models (OR, 1.76; 95% CI, 1.09–2.84; p − 0.020), whereas no significant relationship was found under the recessive model (OR, 1.54; 95% CI, 0.74–3.20; p − 0.239).