Age at onset [H(2) = 15.97, P = <.001), BMI (H(2) = 14.6, P = <.001], percentage of patients with DK/DKA (P = <.001), HbA1C [H(2) = 48.57, P = <.001], fasting glucose [H(2) = 6.307, P = .043], 2-hour postload glucose [H(2) = 47.74, P = <.001], △2-hour glucose [H(2) = 44.38, P = <.001], TG [H(2) = 20.59, P = <.001], and percentage of patients receiving insulin (P = <.001) and oral hypoglycemic agents (P = <.001) were significantly lower in the GCK-MODY group when compared to both non-GCK-MODY and MODYX groups. Here, INS is linked to MODY.