1 A data set has three quartiles: the lower quartile, the median of the data set, and the upper quartile. 2  Median: The median divides a data set into two equal parts. 3  Lower quartile: Median of the lower half of the data. 4  Upper quartile: Median of the upper half of the data.
This chart helps to show how your A1C value relates to estimated Average Glucose (eAG). A1C % eAG mg/dL 6% 126 6.5% 140 7% 154 7.5% 169 8% 183 8.5% 197 9% 212 9.5% 226 10% 240 An A1C of 7% or less, the goal for many people with diabetes, is equal to an eAG of 154 mg/dL.ompare your results to other recent values as well as to the normal range to see if blood sugar control is getting better. It might also be helpful to compare the eAG to your 30 day average blood sugar in your meter.
Eventually that normal range will be standardized to a range of 4-6% but some labs still have ranges that are quite different. To convert the A1c to average blood glucose, consider the high end of the normal range (e.g. if normal is 4-6%, then 6%) is equal to 120 mg/dl.For each change in 1% of A1c, there is a corresponding increase or decrease of approximately 30 mg/dl average plasma glucose.(Please see chart below for examples.) HbA1c is one of 3 hemoglobin molecules that makes up red blood cells. Glucose attaches slowly to this molecule of hemoglobin over 120 days.or each change in 1% of A1c, there is a corresponding increase or decrease of approximately 30 mg/dl average plasma glucose. (Please see chart below for examples.) HbA1c is one of 3 hemoglobin molecules that makes up red blood cells. Glucose attaches slowly to this molecule of hemoglobin over 120 days.