The patients with T1D had significantly more males (54.6 vs. 34.7 %; p = 0.013) and had higher glucose levels (9.20 [5.70; 13.2] vs. 5.00 [4.50; 6.00] mmol/L; p < 0.001) and a higher frequency of ZnT8 (17.5 vs. 2.0 %; p = 0.006) and GAD65 AAb positivity (51.3 vs. 2.1 %; p < 0.001) when compared to controls. The gene discussed is GAD2; the disease is type 1 diabetes mellitus.