E • Technical Information | Dexcom G7 User Guide 129
Table 1-D. G7 accuracy to comparator method within comparator method
glucose ranges (adults; n=308)
YSI
glucose
range
(mg/dL)
Number
of paired
CGM-YSI
Percent
within
15
mg/dL
YSI
Percent
within
20
mg/dL
YSI
Percent
within
40
mg/dL
YSI
Percent
within
15% YSI
Percent
within
20% YSI
Percent
within
40% YSI
Mean
bias
(mg/dL)
MARD
(%)
<54 732 91.0 93.7 98.8 --- --- --- 4.0 14.0
54-69 4,530 92.0 97.0 99.8 --- --- --- 1.1 10.7
70-180 17,910 --- --- --- 84.6 92.6 99.3 1.1 8.6
181-250 5,905 --- --- --- 89.9 95.0 99.6 -1.9 7.4
>250 10,116 --- --- --- 92.8 97.1 99.9 -6.6 6.4
Table 1-E. G7 accuracy to comparator method within comparator method
glucose ranges (pediatrics*; n=122)
YSI
glucose
range
(mg/dL)
Number
of paired
CGM-YSI
Percent
within
15
mg/dL
YSI
Percent
within
20
mg/dL
YSI
Percent
within
40
mg/dL
YSI
Percent
within
15% YSI
Percent
within
20% YSI
Percent
within
40% YSI
Mean
bias
(mg/dL)
MARD
(%)
<54 66 92.4 98.5 100.0 --- --- --- 2.0 10.4
54-69 811 91.0 96.9 100.0 --- --- --- 0.7 9.8
70-180 3,936 --- --- --- 85.5 92.4 98.6 -0.4 8.5
181-250 1,275 --- --- --- 88.0 94.7 99.8 -2.3 7.6
>250 1,980 --- --- --- 90.9 97.8 99.9 -7.9 6.8
* Includes pediatric subjects 7-17 years of age; no YSI measurements were taken for
pediatric subjects 2-6 years of age.