1. What is the eAG Formula?

The eAG (estimated Average Glucose) formula converts HbA1c percentage values to average blood glucose levels in mg/dL. This provides a more intuitive understanding of glucose control for patients with diabetes.

2. How Does the Calculator Work?

The calculator uses the eAG formula:

Where:

• \( HbA1c \) — Glycated hemoglobin percentage
• 28.7 — Conversion coefficient
• 46.7 — Adjustment factor

Explanation: The formula 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), which can improve diabetes management and adherence to treatment plans.

4. Using the Calculator

Tips: Enter the HbA1c percentage value. The calculator will provide the corresponding estimated average glucose level in mg/dL.

5. Frequently Asked Questions (FAQ)

Q1: What is the relationship between HbA1c and average glucose?
A: HbA1c represents the average blood glucose level over the past 2-3 months. The eAG formula converts this percentage to mg/dL units.

Q2: What are normal eAG values?
A: For non-diabetics, eAG is typically below 115 mg/dL (HbA1c < 5.7%). Diabetes is diagnosed when eAG is above 140 mg/dL (HbA1c ≥ 6.5%).

Q3: How accurate is the eAG conversion?
A: The formula provides a good estimate for most people, but individual variations in red blood cell lifespan and other factors can affect accuracy.

Q4: Can eAG be used for treatment decisions?
A: While eAG is helpful for patient education, clinical decisions should be based on the actual HbA1c measurement and other glucose monitoring data.

Q5: Are there different formulas for different units?
A: Yes, different formulas exist for converting to mmol/L. This calculator uses the standard formula for mg/dL conversion.