1. What is the eAG Calculation?

The eAG (estimated Average Glucose) calculation converts HbA1c percentage values to average glucose levels in mg/dL. This provides a more intuitive understanding of blood glucose control over the previous 2-3 months.

2. How Does the Calculator Work?

The calculator uses the ADAG (A1c-Derived Average Glucose) formula:

Where:

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

Explanation: This linear equation was derived from extensive clinical studies correlating HbA1c levels with continuous glucose monitoring data.

3. Importance of eAG Calculation

Details: Converting HbA1c to eAG helps patients better understand their diabetes control by relating it to daily glucose meter readings, improving diabetes management and treatment adherence.

4. Using the Calculator

Tips: Enter the HbA1c percentage value. The calculator will provide the corresponding estimated average glucose level in mg/dL.

5. Frequently Asked Questions (FAQ)

Q1: What is the relationship between HbA1c and average glucose?
A: HbA1c represents the average blood glucose level over the past 2-3 months, with each 1% change corresponding to approximately 29 mg/dL change in average glucose.

Q2: What are target eAG levels for diabetes management?
A: For most adults with diabetes, target eAG is typically below 154 mg/dL (HbA1c < 7%), though individual targets may vary based on health status.

Q3: How accurate is the eAG calculation?
A: The formula provides a good estimate for most people, but individual variations in red blood cell lifespan and other factors can affect accuracy.

Q4: Can eAG be used for diagnosis?
A: No, eAG is derived from HbA1c and should not be used for diabetes diagnosis. Diagnosis should be based on actual glucose measurements or HbA1c.

Q5: Are there limitations to this conversion?
A: The formula may be less accurate in conditions affecting red blood cell turnover, such as anemia, hemoglobinopathies, or recent blood transfusions.