采用HOMA模型以空腹血糖和空腹胰岛素评价胰岛素抵抗指数和胰岛β细胞功能指数,以身高、体重计算BMI,以糖化血红蛋白评价平均血糖水平。Calculate insulin resistance index and pancreatic βcell function index using fasting blood glucose and fasting insulin according to HOMA pattern. Calculate BMI using weight and height. Calculate average blood glucose using glycosylated hemoglobin.