Furthermore, adjustment for BMI slightly strengthened the T2D association with TCF7L2 [OR (95%CI) 1.35 (1.1–1.64) p-value = 0.003], slightly weakened the association with HHEX [OR (95%CI) 1.38 (1.13–1.69) p-value = 0.002] and FTO [OR (95% CI) 1.33 (1.08–1.63) p-value = 0.006] and significantly weakened the association with SLC30A8 [OR (95% CI) 1.31 (1.05–1.63) p-value = 0.02]. This evidence concerns the gene FTO and type 2 diabetes mellitus.