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 understand what the HbA1c value means 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 diabetes control in familiar glucose units, improving communication and diabetes management.

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: What is the relationship between HbA1c and average glucose?
A: HbA1c reflects average blood glucose levels over the past 2-3 months. The eAG equation converts this percentage to mg/dL for easier understanding.

Q2: What are normal HbA1c values?
A: Normal HbA1c is below 5.7%. 5.7%-6.4% indicates prediabetes, and 6.5% or higher indicates diabetes.

Q3: How accurate is the eAG conversion?
A: The conversion is based on large clinical studies and provides a good estimate, but individual variations may occur.

Q4: Can eAG replace self-monitoring of blood glucose?
A: No, eAG provides an average but doesn't show glucose fluctuations. Self-monitoring is still important for daily management.

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