TCF7L2 and type 2 diabetes mellitus: Even though a previous study, which did not genotype rs7903146 directly, has posited that their best marker SNP at TCF7L2 (rs12255372, r2 = 0.7 in AMR with rs7903146) may capture a secondary BMI signal in Hispanic/Latinos [12], subsequent trans-ethnic fine-mapping studies of BMI and T2D including diverse Hispanic/Latino samples [8, 46] and large Hispanic/Latino studies have not supported the presence of multiple signals [47].