1. What is the eAG Equation?

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

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 better understand their glucose control in familiar units (mg/dL) and facilitates diabetes management discussions between patients and healthcare providers.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why convert HbA1c to eAG?
A: eAG translates the HbA1c percentage into average glucose levels that patients can relate to their daily glucose meter readings.

Q2: What is the correlation 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 28.7 mg/dL change in average glucose.

Q3: Are there limitations to this conversion?
A: The conversion is based on population averages and may not perfectly reflect individual glucose patterns. Individual variations in red blood cell lifespan can affect accuracy.

Q4: What are target eAG levels?
A: For most adults with diabetes, target eAG is below 154 mg/dL (HbA1c < 7%). Individual targets may vary based on age, diabetes duration, and other health factors.

Q5: How often should HbA1c be tested?
A: Typically every 3-6 months for diabetes management, or as recommended by your healthcare provider based on your treatment plan and glucose control.