Figure 5From: Long-term effect of metformin on blood glucose control in non-obese patients with type 2 diabetes mellitusChanges in HbA1c levels in patients who required no additional antidiabetic agents or a reduction in treatment. 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).Back to article page