目的　了解深圳市常住居民糖耐量低减 (IGT)流行特征及影响因素。方法　于 1997年采取多阶段整群随机抽样方法 ,对 2 0～ 74岁常住居民 832 9人进行现场调查。结果　IGT发生率为 11 74 % ,其中男为 9 96 % ,女为 12 84 %。IGT发生率与年龄之间存在一定的线性依从关系 (P <0 0 0 1)。血糖正常与IGT人群的BMI、WHR、血压及血脂间差别均有极显著性的意义 (P <0 0 1)。血糖水平与糖尿病 (DM)家族史、年龄、性别、甘油三酯及收缩压间均有关 (P <0 0 5 )。结论　针对高危人群和全人群适时采取适度运动 ,控制体重和血压 ,合理膳食等综合干预措施 ,是预防和控制IGT及DM的重要手段 Objective To investigate the prevalence and influencing factors of impaired glucose tolerance (IGT) in Shenzhen residents. Methods In 1997, a multistage cluster random sampling method was used to investigate 8329 permanent residents aged 20 ~ 74. Results The incidence of IGT was 11 74%, of which 9 96% were male and 12 84% were female. There was a certain linear relationship between the incidence of IGT and age (P <0.01). There was a significant difference between normal blood glucose and IGT population in BMI, WHR, blood pressure and blood lipid (P <0.01). Blood glucose levels were related to family history of diabetes (DM), age, sex, triglyceride and systolic blood pressure (P <0.05). Conclusion It is an important measure to prevent and control IGT and DM that the appropriate interventions should be taken at appropriate time, such as appropriate exercise, weight control, blood pressure and reasonable diet for the high-risk groups and the general population