VDR and type 2 diabetes mellitus: Yu et al[14] in 2016 found that the VDR BsmI polymorphism significantly increased T2DM risk only in overall analysis; Zhu et al[15] in 2014 and Li et al[16] in 2013 reported that the VDR BsmI polymorphism was not associated with T2DM risk in overall populations, Asians and Caucasians; Wang et al[17] in 2012 observed that the VDR BsmI polymorphism was associated with an increased T2DM risk in overall populations and Asians, as shown in Table 3, Supplemental Digital Content.