INS and type 2 diabetes mellitus: With regard to antidiabetic drugs (Table 3), 9 out of 12 patients (75.0%) with TD1 used insulin, and the duration of insulin treatment ranged from 0 to 34 years; 8 out of 78 patients (10.3%) with T2D used insulin, and the duration of treatment ranged from 0 to 18 years; 3 out of 12 patients (25.0%) in the T1D group and 58 out of 78 patients (74.4%) in the T2D group used other antidiabetic medications (OAMs).