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. 2008 Nov;2(6):932–938. doi: 10.1177/193229680800200603

Figure 1.

Figure 1.

Error grid analysis. The EGA describes the clinical accuracy of self-monitoring BG devices. The obtained BG readings are classified into five zones (A, B, C, D, and E). Whereas zones A and B are clinically acceptable, zones C, D, and E are clinically inaccurate and unacceptable. (Top) Measurements of the Accu-Chek® test sensor (GT) as a function of the ABL® reference sensor (GR): 97.6 and 2.4% lie in zone A and B, respectively. (Bottom) Observations of the HemoCue® test sensor (GT) as a function of the ABL reference sensor (GR) are depicted: 86.9 and 13.1% lie in zone A and B, respectively.