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eAG Equation:
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The eAG (estimated Average Glucose) equation converts HbA1c percentage to an estimated average glucose value in mg/dL. This provides a more intuitive understanding of average blood glucose levels over the previous 2-3 months.
The calculator uses the eAG equation:
Where:
Explanation: The equation provides an estimated average glucose level that corresponds to the HbA1c measurement, helping patients understand their glucose control in familiar units.
Details: Converting HbA1c to eAG helps patients better understand their diabetes control by translating the percentage into average daily glucose values that are more familiar from self-monitoring.
Tips: Enter HbA1c value as a percentage. The value must be greater than 0. The calculator will provide the estimated average glucose in mg/dL.
Q1: Why convert HbA1c to eAG?
A: Many patients find glucose values in mg/dL more intuitive and easier to relate to their daily glucose monitoring results than HbA1c percentages.
Q2: How accurate is the eAG conversion?
A: The conversion provides a good estimate of average glucose, though individual variations in glucose patterns may cause some discrepancy between eAG and actual average glucose.
Q3: What are normal eAG values?
A: For non-diabetic individuals, eAG is typically below 140 mg/dL (corresponding to HbA1c < 6.5%). Diabetes treatment goals vary but often aim for eAG below 154 mg/dL (HbA1c < 7%).
Q4: Can eAG replace daily glucose monitoring?
A: No, eAG provides an average but doesn't show glucose variability or hypoglycemic episodes. Daily monitoring remains important for diabetes management.
Q5: Is this conversion valid for all patient populations?
A: The equation was derived from average data and works well for most populations, though individual factors like hemoglobin variants may affect accuracy.