TBC1D4 and type 2 diabetes mellitus: We included 240 individuals with type 2 diabetes (of these, 38 individuals were homozygous TBC1D4 p.Arg684Ter variant carriers) and 1969 individuals with normal glucose tolerance as a control group (of these, 28 individuals were homozygous TBC1D4 p.Arg684Ter variant carriers) in a logistic model.