1. What is the ADA eAG Equation?

The American Diabetes Association (ADA) eAG equation estimates average glucose levels from HbA1c measurements. This conversion helps patients and healthcare providers understand HbA1c results in terms of average daily glucose levels.

2. How Does the Calculator Work?

The calculator uses the ADA equation:

Where:

• \( HbA1c \) — Glycated hemoglobin percentage
• \( eAG \) — Estimated average glucose in mg/dL

Explanation: The equation provides a linear conversion between HbA1c percentage and estimated average glucose levels over the preceding 2-3 months.

3. Importance of eAG Calculation

Details: Converting HbA1c to eAG helps patients better understand their glucose control in familiar units (mg/dL), which may improve diabetes self-management and treatment adherence.

4. Using the Calculator

Tips: Enter HbA1c as a percentage value (e.g., 6.5). The calculator will provide the estimated average glucose in mg/dL.

5. Frequently Asked Questions (FAQ)

Q1: Why convert HbA1c to eAG?
A: Many patients find it easier to understand their glucose control when expressed as average daily glucose levels rather than as a percentage.

Q2: What are normal HbA1c values?
A: Normal HbA1c is below 5.7%. Prediabetes ranges from 5.7% to 6.4%, and diabetes is diagnosed at 6.5% or higher.

Q3: How often should HbA1c be measured?
A: For most people with diabetes, HbA1c should be measured at least twice a year. Those with changing treatment plans may need testing quarterly.

Q4: Are there limitations to this conversion?
A: The equation provides an estimate of average glucose. Individual glucose patterns may vary, and the relationship may differ in certain populations.

Q5: Can eAG replace self-monitoring of blood glucose?
A: No, eAG provides an average but doesn't show glucose variability or hypoglycemic episodes. Self-monitoring remains important for daily management.