What is the diagnostic level for H1AC that indicates diabetes?

The diagnostic level for Hemoglobin A1c (HbA1c) that indicates diabetes is greater than or equal to 6.5%. This threshold is based on criteria established by the American Diabetes Association, which uses HbA1c as a reliable indicator of average blood glucose levels over the previous two to three months. When the HbA1c level is at or above this mark, it reflects a significant level of glycemic control impairment, classifying the individual as having diabetes.

The importance of this diagnostic criterion lies in its ability to identify individuals who may be at risk for diabetes-related complications if their blood glucose levels remain uncontrolled. Maintaining the HbA1c below this level is crucial for preventing the long-term effects of diabetes, such as cardiovascular disease, neuropathy, and kidney damage.