Figure 2From: Long-term effect of metformin on blood glucose control in non-obese patients with type 2 diabetes mellitusChanges of HbA1c levels and body mass index in obese and non-obese patients with type 2 diabetes mellitus. Data represent the mean ± SD. Open and closed circles represent the values in obese and non-obese individuals, respectively. * P < 0.05 and ** P < 0.01 vs. 0 M (initiation of metformin). $ P < 0.01 vs. obese.Back to article page