The median (IQR) duration of T2DM was 5 (3–6) years; the mean ± SD of HbA1c at baseline was 8.32 ± 1.29; 14.1% used insulin; 45.3% were covered by the CSMBS; and 44.2% were treated by general practitioners. The gene discussed is INS; the disease is type 2 diabetes mellitus.