Main baseline characteristics of participants.

Of type 2 diabetic subjects, 12 were receiving other hypoglycaemic treatments. SD: Standard Deviation; IQR: Inter-Quartile Range;£Diabetes was assessed for subjects with fasting blood glucose ≥7.7 mmol/l (140 mg/dl) or under hypoglycaemic drug treatment;££Diabetic subjects treated with metformin alone;£££Diabetics with sulfonylureas or insulin alone or in combination;* Diabetes with renal, ophthalmic, neurological, peripheral arterial disease or atherosclerotic cardiovascular disease;** Among diabetics.在2型糖尿病受试者中，有12人正在接受其他降糖治疗。标准差（Standard Deviation，SD）；四分位距（Inter-Quartile Range，IQR）；糖尿病诊断标准为受试者空腹血糖≥7.7 mmol/L（140 mg/dL）或接受降糖药物治疗；仅使用二甲双胍（Metformin）治疗的糖尿病受试者；仅使用磺脲类药物（sulfonylureas）、胰岛素治疗或二者联合治疗的糖尿病患者；* 合并肾脏、眼部、神经系统、外周动脉疾病或动脉粥样硬化性心血管疾病的糖尿病患者；** 仅针对糖尿病受试者。