TCF7L2 and type 2 diabetes mellitus: Contrary to previous reports [12, 14, 15], the T2D risk allele (rs7903146-T) at TCF7L2 was not enriched among LADA cases, with a frequency close to that of controls (0.295 vs. 0.298, respectively); indeed, the TCF7L2 signal was the most significantly different signal between LADA and T2D cases (Pdifference = 5.21 × 10–6).