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 average blood glucose levels 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: The equation provides an estimated average glucose level that corresponds to the HbA1c measurement, giving a more intuitive understanding of glucose control.

3. Importance of eAG Calculation

Details: Converting HbA1c to eAG helps patients better understand their glucose control in familiar units (mg/dL) and facilitates more effective 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: What is the relationship between HbA1c and average glucose?
A: HbA1c reflects average blood glucose levels over the previous 2-3 months. The eAG conversion provides this average in daily glucose monitoring units.

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

Q3: What are target eAG values?
A: Target eAG values correspond to HbA1c targets. For example, an HbA1c of 7% corresponds to an eAG of approximately 154 mg/dL.

Q4: Can eAG replace daily glucose monitoring?
A: No, eAG provides an average but doesn't show glucose variability. Both HbA1c/eAG and daily glucose monitoring are important for comprehensive diabetes management.

Q5: Are there limitations to this conversion?
A: The conversion may be less accurate in certain conditions such as anemia, hemoglobin variants, or renal disease that affect red blood cell turnover.