1. What is eAG Calculation?

The eAG (estimated Average Glucose) calculation converts HbA1c percentage values into average blood glucose levels in mg/dL. This provides a more intuitive understanding of glucose control over the previous 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 constant

Explanation: This linear equation translates the HbA1c percentage into an estimated average glucose value that represents mean blood glucose levels over time.

3. Importance of eAG Calculation

Details: eAG helps patients and healthcare providers better understand what HbA1c results mean in terms of daily glucose levels, making diabetes management more relatable and actionable.

4. Using the Calculator

Tips: Enter HbA1c value as a percentage (e.g., 6.5, 7.0, 8.2). The value must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: Why convert HbA1c to eAG?
A: eAG provides glucose values in familiar units (mg/dL) that patients use with their glucose meters daily, making HbA1c results more understandable.

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 the previous 2-3 months.

Q3: What are target eAG values?
A: Generally, eAG below 154 mg/dL corresponds to HbA1c < 7%, which is the target for most adults with diabetes.

Q4: Does eAG replace self-monitoring?
A: No, eAG complements but does not replace regular blood glucose monitoring, which shows daily fluctuations and patterns.

Q5: Are there limitations to eAG?
A: eAG represents an average and doesn't show glucose variability. Individual results may vary based on glucose patterns.