Relationship between HbA1c and average glucose from the A1c Derived Average Glucose (ADAG) Study

From:

'Translating the A1C Assay Into Estimated Average Glucose Values'
Nathan DM, Kuenen J, Borg R, Zheng H, Schoenfeld D, Heine RJ; A1c-Derived Average Glucose Study Group.
Diabetes Care . 2008 Aug; 31(8): 1473-8.
Read abstract on Pubmed

Click image to enlarge

Figure 1—Linear regression of A1C at the end of month 3 and calculated AG during the preceding 3 months. Calculated:

• AG (mg/dl) = 28.7 x A1C - 46.7
• AG (mmol) = 1.59 x A1C - 2.59

(R2 = 0.84, P < 0.0001).

Please also see the estimated Average Glucose (eAG) calculator on the American Diabetes Association website:
http://professional.diabetes.org/glucosecalculator.aspx