*significant difference versus baseline
Figure 2: Effect of metformin on waist circumference. Waist circumference 102.8 ± 14.3 cm significantly reduced at 6 month 95.3 ± 12.2 cm (p=0.004), at 9 month 92.6 ± 12.7 cm (p<0.001) and at 1 year 90.9 ± 12.5 cm (p<0.001).