As expected, those with higher TyG index had higher levels of fasting blood glucose, fasting total glyceride (TG), fasting insulin, HbA1c and HOMA-IR index (all p < 0.001), in addition to higher occurrence rate of diabetes and impaired fasting blood glucose (IFG; p < 0.001) than those with lower TyG index. This evidence concerns the gene INS and diabetes mellitus.