However, the studies covered a diverse spectrum from 4.1 mM in a study of healthy adults83 to 7.6 mM in a study of type 2 diabetes patients aged 40–80 years.72 Baseline insulin and HbA1c levels averaged 51.5±44.1 pM and 4.4%±0.6% were also quite variable across studies (table 3 and online supplementary table S5). The gene discussed is INS; the disease is type 2 diabetes mellitus.