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. 2016 Feb 1;18(Suppl 2):S2-23–S2-33. doi: 10.1089/dia.2015.0380

FIG. 2.

FIG. 2.

Clarke Error Grids for continuous glucose monitoring (CGM) versus reference YSI (a and b) and self-monitoring of blood glucose (SMBG) (c and d) for the G4 Platinum (a and c) and G4P Platinum with Software 505 algorithm (b and d). The Clarke error grid results indicate superior performance with the Software 505 algorithm compared with the G4 Platinum in the comparison of CGM versus reference YSI glucose values and CGM versus SMBG. For the G4 Platinum, 68% of values fell in Zone A, and 98% fell in Zones A and B; for the Software 505 algorithm, 90% of values fell in Zone A, and 99% fell in Zones A and B. For the comparison of CGM with SMBG values, 75% of values fell in Zone A, and 98% fell in Zones A and B for the G4 Platinum; 86% fell in Zone A, and 98% fell in Zones A and B for the Software 505 algorithm.