INS and metabolic syndrome: Glucose metabolism profiles were significantly different between the groups (P < 0.05); the PCOS group had higher values for fasting insulin, 2-h glucose, 2-h insulin, QUICKI, HOMA-IR, fasting glucose/fasting insulin, HOMA-B, Matusda index, ratio of 2-h glucose to 2-h insulin, IR, and MetS than those for the control group.