In all 141 patients in the diabetic group and 428 patients in the control group, while 66 patients were excluded based on exclusion criteria. Prevalence of osteoporosis was significantly higher in diabetic group (RR 1.2, 95%CI 1.1, 1.2). BMD and T-score values were similar in diabetic and control groups. Z-score values of lumbar spine, L1 and L3 were significantly higher in diabetic group. Obese patients have significantly higher BMD than non-obese in both studied groups. Younger diabetic patient had significantly higher value of BMD, T-score and Z-score in left femur total hip.