Journal: Diabetes Care
Article Title: Glucose Management Indicator (GMI): A New Term for Estimating A1C From Continuous Glucose Monitoring
doi: 10.2337/dc18-1581
Figure Lengend Snippet: Plot of CGM-measured mean glucose concentration vs. central laboratory–measured A1C used to compute the formula to estimate GMI, combining data from four randomized trials using the Dexcom G4 sensor with 505 software ( N = 528) described in the Supplementary Data . The shaded area represents the 95% CI of the regression line. The regression equation to compute GMI (%) = 3.31 + 0.02392 × [mean glucose in mg/dL] or GMI (mmol/mol) = 12.71 + 4.70587 × [mean glucose in mmol/L]. A calculator to compute GMI is available at www.jaeb.org/gmi and www.AGPreport.org/agp/links .
Article Snippet: More recently, Beck et al. ( ) published an equation (3.38 + 0.02345 × [mean glucose in mg/dL]) to estimate A1C from CGM-measured mean glucose concentration using modern CGM technology (Dexcom G4 Platinum CGM System with software 505; Dexcom, Inc., San Diego, CA) and using up to 91 days of CGM data (median 66 days) from 387 individuals with diabetes, combining data from three clinical trials (315 with T1D and 72 with T2D) ( – ).
Techniques: Concentration Assay, Software