Table 1: Demographic characteristics and biochemical parameters of the study population.

Control Subjects Obese and Overweight Subjects Diabetic Subjects
N (male/female) 23(9/14) 35 (7/28) 31(10/21)
Age (years) 39±9 40 ±13** 41± 9 b**b
weight (kg) 63.77±3 83.43±5* 93.19±6*
BMI (kg/m2) 22.65 ±1.7 32.98 ± 5.06* 35.25 ± 4.33*a
HbA1c (%) 4.9±2.2 5.3±0.77** 7.2±0.8a*a
Insulin (µU / ml) 6.15±0.93 10.82 ± 4.59* 11.1 ± 5.25 b*
Glucose (mg/dl) 95.6±5.5 100 ± 10.5** 191.7± 61.8a *
HOMA-IR 1.45±0.28 2.66 ± 1.15* 5.14 ± 2.45a*
Obestatin (ng/ml) 12.38±3.74 7.76 ± 2.09* 6.35 ± 2.48a*

Data presented as mean ± standard deviation. BMI, body mass index; HOMA-IR, homeostasis model assessment –insulin resistance index. * P<0.05, ** P>0.05 compared with control group. a P<0.05, b P>0.05 compared with obese subjects.