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eAG Equation:
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The eAG (estimated Average Glucose) calculation converts HbA1c percentage values to an average glucose level in mg/dL, providing a more intuitive understanding of blood glucose control over the previous 2-3 months.
The calculator uses the eAG equation:
Where:
Explanation: This linear equation translates the HbA1c percentage, which reflects average blood glucose over approximately 3 months, into an estimated average glucose value in mg/dL.
Details: Converting HbA1c to eAG helps patients and healthcare providers better understand diabetes control in familiar glucose units, facilitating improved diabetes management and treatment decisions.
Tips: Enter the HbA1c value as a percentage (e.g., 6.5 for 6.5%). The value must be greater than 0. The calculator will provide the corresponding estimated average glucose in mg/dL.
Q1: Why convert HbA1c to eAG?
A: Many patients find glucose values in mg/dL more understandable than HbA1c percentages, making it easier to relate to their daily glucose monitoring results.
Q2: How accurate is the eAG calculation?
A: The formula provides a good estimate based on population studies, though individual variations in glucose patterns may cause some discrepancy between eAG and actual average glucose.
Q3: What is the relationship between HbA1c and average glucose?
A: HbA1c represents the percentage of hemoglobin that has glucose attached, which correlates with average blood glucose levels over the previous 2-3 months.
Q4: Are there limitations to this conversion?
A: The relationship may vary in individuals with certain hemoglobin variants, anemia, kidney disease, or other conditions affecting red blood cell turnover.
Q5: What are typical eAG values for good diabetes control?
A: For most adults with diabetes, an eAG below 154 mg/dL (HbA1c < 7%) is generally recommended, though targets should be individualized based on patient factors.