Associations of Hemoglobin A1c With Cardiovascular Disease and Mortality in Chinese Adults With Diabetes

In patients with type 2 diabetes, hemoglobin A1c (HbA1c) is a strong predictor of microvascular complications, with the incidence of retinopathy, nephropathy, and neuropathy increasing curvilinearly as the HbA1c increases above 6.5% to 7.0%. However, no universal consensus about optimal HbA1c for