Figure 5From: Collaborative care for patients with depression and diabetes mellitus: a systematic review and meta-analysis Diabetes clinical outcomes (HbA1c values) at 6 and 12Â months. HbA1c values were estimated from meta-analysis of diabetic depression patients with collaborative care (intervention group) versus usual care (control group). (A) HbA1c values at 6Â months. (B) HbA1c values at 12Â months.Back to article page