Analysis on epidemiologic characteristics of diabetes mellitus and impaired glucose regulation among rural residents in Shandong province, China

Objective To analyze epidemiolog ic character istics of diabetes mellitus(DM)and impaired glucose regulation(IGR)among rural residents aged>25 years in midwestern area of Shandong province.Methods By multi- stage and randomization sampling method,a sample of 16 388 rural residents was selected and investigated.All participants were interviewed with a standard questionnaire.Height,weight,waist circumference and fasting plasma glucose(FPG)were measured using standardized method.Oral glucose tolerance test(OGTT)were performed for subjects with FPG valued from 6.1 to 7.0 mmol/L.Isolated IFG(I-IFG),impaired fasting glucose with impaired glucose tolerance(IFG/IGT)and DM were defined according to the criteria of WHO 1999.Results Age-adjusted prevalence rate for IFG,DM,-IIFG,IFG/IGT was 6.85%,3.38%,4.41%,0.83%,respectively.With the increasing of age,waist circumference,BMI(body mass index),the prevaleace of I-IFG,IFG/IGT and DM increased.Measurements of -IIFG and IFG/IGT showed higher prevalence among those aged >35 years,while DM was higher among those aged >45 years.IFG/IGT and DM were higher among those with waist circumference≥85 cm in male and ≥80 cm in female.The prevalence of I-IFG,IFG/IGT and DM increased significantly for those BMI ≥24.Age,waist circumference,BMI,waist to height radio,systolic pressure,diastolic pressure increased in the order of normal population,I-IFG,IFG/IGT and DM group.There was no difference between IFG/IGT and DM groups.Conclusion-IIFG,IFG/IGT and DM showed same prevalence char acters in the study population.DM and IGT should be set for publicity and early prevention.