TCF7L2 and type 2 diabetes mellitus: Among these, ADCY3 rs17799872 and LINC02227 rs2149954 were associated with T2D, MOD, SIRD, and SIDD; AVPR1B rs33911258 and TCF7L2 rs7903146 showed associations with T2D, MARD, MOD, and SIRD.