1. What is eAG (Estimated Average Glucose)?

eAG (Estimated Average Glucose) is a calculated value that translates HbA1c percentage into average blood glucose levels in mg/dL. This conversion helps patients better understand their diabetes control in familiar glucose units.

2. How Does the Calculator Work?

The calculator uses the eAG formula:

Where:

• \( HbA1c \) — Glycated hemoglobin percentage
• 28.7 — Conversion coefficient
• 46.7 — Adjustment factor

Explanation: This linear equation provides an estimate of average glucose levels over the preceding 2-3 months based on HbA1c measurement.

3. Importance of eAG Calculation

Details: Converting HbA1c to eAG helps patients relate their long-term glucose control to daily blood glucose readings, improving diabetes management and patient understanding.

4. Using the Calculator

Tips: Enter HbA1c value as a percentage (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: eAG provides average glucose levels in familiar units (mg/dL) that patients use for daily monitoring, making HbA1c results more meaningful.

Q2: How accurate is the eAG conversion?
A: The formula provides a good estimate for most patients, but individual variations in glucose patterns may affect accuracy.

Q3: What is the normal range for eAG?
A: For non-diabetic individuals, eAG is typically below 140 mg/dL (HbA1c < 6.0%). Diabetes control targets vary by individual.

Q4: Does eAG replace daily glucose monitoring?
A: No, eAG complements but does not replace daily glucose monitoring, which provides immediate feedback and pattern information.

Q5: Are there limitations to eAG calculation?
A: The formula assumes average glucose-HbA1c relationship. Conditions affecting red cell turnover may affect accuracy.