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 provides a more intuitive understanding of average blood glucose levels over the past 2-3 months.

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 a linear conversion from HbA1c percentage to estimated average glucose levels in mg/dL.

3. Importance of eAG Calculation

Details: Converting HbA1c to eAG helps patients better understand their glucose control in familiar units (mg/dL) and facilitates communication between patients and healthcare providers.

4. Using the Calculator

Tips: Enter HbA1c value as a percentage (e.g., 6.5). The value must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: Why convert HbA1c to eAG?
A: eAG provides average glucose levels in mg/dL, which is more familiar to patients who monitor their blood glucose daily.

Q2: How accurate is the eAG conversion?
A: The conversion is based on large clinical studies and provides a reliable estimate of average glucose levels over 2-3 months.

Q3: What are normal eAG values?
A: Normal eAG corresponds to HbA1c below 5.7% (eAG < 117 mg/dL). Values between 117-137 mg/dL indicate prediabetes, and above 137 mg/dL may indicate diabetes.

Q4: Are there limitations to this conversion?
A: The conversion may be less accurate in individuals with certain medical conditions that affect red blood cell turnover or hemoglobin variants.

Q5: Should eAG replace HbA1c monitoring?
A: No, eAG is a derived value from HbA1c. HbA1c remains the standard for long-term glucose monitoring in diabetes care.