上麵那個是DCCT圖表數據來源於93年的研究。
That chart is based on a study that analyzed data collected during the DCCT, which included quarterly A1C tests and 7-point glucose measurements in 1,400 type 1 diabetes patients.
現在用新的、更準的，數據來源是2008年的ADAG研究。
The International A1C-Derived Average Glucose (ADAG) Study involved people with type 1 and type 2 diabetes as well as people without diabetes, and took advantage of the development of continuous glucose monitors, as well as patients making traditional glucose checks, to generate a much larger pool of data. Both studies showed a linear relationship between A1C and average glucose; the ADAG study presents a more refined and accurate formula describing that relationship。
計算公式：28.7 x A1C － 46.7 = eAG.
