糖尿病的患病率不断增加 ,其慢性合并症心脑血管疾病是 2型糖尿病患者致残致死的主要原因 ,糖尿病已成为全球性疾病 ,是世界死亡原因的第五位。我国糖尿病患病率在1980至 1994年的 14年期间增长了 3倍以上 ,在目前大多数的调查中糖尿病患病率为 1.15 %～ 4.74% ;糖耐量受损为 1 The prevalence of diabetes is increasing. Its chronic comorbid cardiovascular and cerebrovascular diseases are the main cause of disability and death in type 2 diabetic patients. Diabetes has become a global disease and is the fifth leading cause of death in the world. The prevalence of diabetes in our country increased more than three-fold over a 14-year period from 1980 to 1994, with a prevalence of 1.15% to 4.74% in most surveys at present; impaired glucose tolerance