INS and metabolic syndrome: Compared to the non-MetS group (n = 3,453), the MetS group (n = 414) was significantly older and male predominant, with higher systolic BP, diastolic BP, WC, BMI, FPG, HbA1c, fasting insulin, HOMA-IR, HOMA-B, T-cho, and TG values, and lower HDL-cho values.