The mean glucose level in T2DM group was 167.33 ± 35.34 mg/dL, and the mean glucose level in HNF1A-MODY group was 143.11 ± 38.07 mg/dL; the groups did not differ in mean glucose level (t-test, p = 0.1037). This evidence concerns the gene HNF1A and type 2 diabetes mellitus.