Abstract: ObjectiveTo compare the body composition of diabetic and non-diabetic subjects and to investigate the relationship between central obesity and type 2 diabetes.MethodsSixty seven diabetic and sixty five non-diabetic were enrolled randomly in the study.They were measured by bioelectrical impedance analysis(BIA)for body fat percentage,the content of protein,mineral matter and fat,lean body mass,waist circumference,hip circumference,and waist-to-hip ratio.And the blood glucose,triglyceride,high density lipoprotein,low density lipoprotein,alkaline phosphatase were also measured.ResultsThe mean of the waist circumference and waist-to-hip ratio of the diabetic were(91.768±5.200)cm,(0.948±0.045),which were higher than that of the non-diabetiic(87.597±9.630)cm,(0.931±0.053)(P<0.05),but the differences of other indexes were not statistically significant.Except weight,lean body mass,body mass index and body fat percentage,the gender was unrelated to other measurements.The waist circumference,waist-to-hipratio of the diabetic were negatively related to high density lipoprotein(P<0.05).There were positive correlations between the waist circumference and blood glucose,waist-to-hip ratio and triglyceride,alkaline phosphatase(P<0.05).ConclusionIndexes except body fat are not significant different between the diabetic and non-diabetic.There may be some relationship between central obesity and diabetes.