TableĀ 2

Comparison of accuracy for factory calibrated and user calibrated sensor systems

Factory calibratedRequire daily fingerprick calibrations
Accuracy measureFreeStyle LibreGlucoday28Medtronic REALTime2930Dexcom G4 Platinum4Dexcom G4 Platinum with software 505 algorithm4
Mean absolute relative difference, %13.913.918.0, 19.01513
Percentage of results in
zone A of CEG
83.8NANA, 66.78086
Percentage of results in zones A and B of CEG99.498.694.5, 92.399100
  • CEG, consensus error grid; NA, not available.