The following figure is a correlation plot of Guardian RT readings versus readings from the reference
method, the blood glucose meter
. It is overlaid with the Clarke Error Grid. The total number of paired data
points is 2599.
Meter BG (mg/dL)
Sensor BG (mg/dL)
A (1733, 66.7%)
B (665, 25.6%)
C (7, 0.3%)
D (193, 7.4%)
E (1, 0.0%)
The percent of Guardian RT readings in the above graph are presented in the table below according to the
percentage of points falling within each zone (A-E). Results are further broken down (stratified) according
to the range of glucose concentrations.
Sensor accuracy 225
Appendix A
Commentaires sur ces manuels