1. What is the eAG Equation?

The eAG (estimated Average Glucose) equation converts HbA1c percentage to an average blood glucose value in mg/dL. This helps patients and healthcare providers better understand glucose control in familiar units.

2. How Does the Calculator Work?

The calculator uses the eAG equation:

Where:

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

Explanation: This linear equation provides an estimated average glucose level that corresponds to the HbA1c measurement.

3. Importance of eAG Calculation

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

4. Using the Calculator

Tips: Enter HbA1c value as a percentage. The value must be greater than 0. The calculator will provide the corresponding estimated average glucose in mg/dL.

5. Frequently Asked Questions (FAQ)

Q1: Why convert HbA1c to eAG?
A: Many patients are more familiar with daily glucose readings in mg/dL, so eAG helps them better understand what their HbA1c means in practical terms.

Q2: How accurate is the eAG conversion?
A: The equation provides a good estimate based on population studies, but individual variations in glucose patterns may affect accuracy.

Q3: What is a normal eAG range?
A: For non-diabetic individuals, eAG is typically below 140 mg/dL. Diabetes management targets vary but often aim for eAG below 154 mg/dL (HbA1c < 7%).

Q4: Can eAG replace daily glucose monitoring?
A: No, eAG provides an average but doesn't show glucose variability. Daily monitoring is still essential for managing insulin doses and detecting hypoglycemia.

Q5: Are there different conversion formulas?
A: Yes, some organizations use slightly different coefficients, but the ADA-recommended formula (28.7 × HbA1c - 46.7) is widely accepted.