Fasting plasma glucose (FPG), insulin (FinS) and C-peptide (FCP) were tested and insulin sensitivity index (ISI) was counted for comparison between both groups.

• 采用清晨时前静脉采血测定空腹血糖、空腹胰岛素水平和空腹C肽，并计算胰岛素敏感指数。