
Table 1b: Accuracy to YSI within CGM Glucose Ranges (Adult; n=144)
CGM
Glucose
Level
†
(mg/dL)
Number
of CGM-
Reference
Pairs
Percent
Within
±15 mg/dL
Percent
Within
±20 mg/dL
Percent
Within
±40 mg/dL
Percent
Within
±15%
Percent
Within
±20%
Percent
Within
±40%
Mean
bias
(mg/dL)
MARD
(%)
<54
518
85.9
93.8
99.4
-6.4
13.8
54-69
3012
89.5
94.2
99.1
-3.3
10.8
70-180
7785
76.5
86.6
99.2
-4.8
10.6
181-250
3037
89.1
95.0
99.9
-10.1
7.8
>250
4383
94.0
97.9
100.0
-6.3
6.1
†
System range is 40-400 mg/dL.
188