1. What is the eAG Equation?

The eAG (estimated Average Glucose) equation converts HbA1c percentage to an estimated average glucose value in mg/dL. This helps patients and healthcare providers better understand what HbA1c results mean in terms of daily glucose levels.

2. How Does the Calculator Work?

The calculator uses the eAG equation:

Where:

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

Explanation: The equation provides an estimated average glucose level that corresponds to the HbA1c measurement over the previous 2-3 months.

3. Importance of eAG Calculation

Details: Converting HbA1c to eAG helps patients relate their long-term glucose control to daily glucose meter readings, making diabetes management more intuitive and actionable.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What is the relationship between HbA1c and eAG?
A: eAG translates the HbA1c percentage into the same units (mg/dL) used by glucose meters, making it easier to understand.

Q2: How accurate is the eAG conversion?
A: The conversion is based on large clinical studies and provides a good estimate, but individual variations may occur.

Q3: What are typical eAG values for different HbA1c levels?
A: For example: HbA1c 5% ≈ 97 mg/dL, 6% ≈ 126 mg/dL, 7% ≈ 154 mg/dL, 8% ≈ 183 mg/dL, 9% ≈ 212 mg/dL.

Q4: Why use both HbA1c and eAG?
A: HbA1c is the standard measurement, while eAG helps patients relate to their daily glucose monitoring results.

Q5: Are there limitations to this conversion?
A: The conversion may be less accurate in certain conditions like hemoglobinopathies, anemia, or kidney disease.