User Manual

88 Chapter 5
The percent of Guardian RT readings in the above graph are presented in Table 5.4 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.
Table 5.4: Stratified Clarke Error Grid Analysis
*N/A means that the Clarke Error Grid does not consider the possibility of these zones in that
concentration range.
Glucose
Range
(mg/dl)
Number
and (%)
of Data
Points
Evaluated
A+B A B C D E
40-80 356 (9) 271
(76.1)
214
(60.1)
57
(16.0)
2 (0.6) 80
(22.5)
3 (0.8)
81-120 769 (20) 768
(99.9)
463
(60.2)
305
(39.7)
1 (0.1) N/A* N/A
121-240 2362 (60) 2352
(99.6)
1476
(62.5)
876
(37.1)
4 (0.2) N/A 6 (0.2)
>240 454 (11) 394
(86.8)
277
(61.0)
117
(25.8)
N/A 59
(13.0)
1 (0.2)
Overall 3941
(100)
3785
(96.0)
2430
(61.7)
1355
(34.4)
7 (0.2) 139
(3.5)
10
(0.2)