Abstract: The study of 447 cases with normal glucose tolerance(NGT) and 277 cases with impaired glucose regulation aged 30~74 years showed that BMI was better correlated with HOMA-IR than were waist circumference(WC) and waist-to-hip ratio(WHR).The correlation coefficients of WC, WHR and BMI against HOMA-IR(0.45, 0.33,0.47 respectively) were almost in accordance with correlations of WC, WHR and BMI with fasting insulin(0.44,0.33 and 0.45 respectively).