Dexcom G4 Professional User Manual page 192

Table 4-A. System Difference to YSI within CGM
Glucose Ranges
CGM
Glucose Number
Ranges of Paired
mg/dL CGM-YSI
(mmol/L)
Overall 9152
*40-60
(2.2-3.3)
*61-80
(3.4-4.4)
81-180
3853
(4.5-10.0)
181-300
2784
(10.1-16.7)
301-350
(16.7-19.4)
351-400
(19.4-22.2)
* F or CGM ≤ 80 mg/dL (4.4 mmol/L), the differences in mg/dL (mmol/L)
are included instead of percent differences (%).
NOTE: CGM readings are within 40 to 400 mg/dL (2.2- 22.2 mmol/L),
inclusive.
Table 4-A is categorized within CGM glucose ranges. For example, on
average, CGM reads 10.0 mg/dL (0.6 mmol/L) lower than the reference
at CGM glucose levels of 40-60 mg/dL (2.2-3.3 mmol/L) and reads 2.4
mg/dL (0.1 mmol/L) lower than the reference at CGM glucose level of
61-80 mg/dL (Mean Difference, i.e. 3.4-4.4 mmol/L), 9.8% different than
the reference at CGM glucose values of 301-350 mg/dL (Mean Absolute
Percent Difference, i.e. 16.7-19.4 mmol/L), and 12.8% different than
Mean
Percent
Difference
(%)
2.9
-10.0
512
(-0.6)
-2.4
781
(-0.1)
4.8
2.1
775 3.8
447 10.4
Dexcom G4 PLATINUM Professional System User's Guide
Median
Mean
Percent
Absolute
Difference
Percent
(%)
Difference
(%)
1.7 13.3
-8.2 13.5
(-5.2) (0.8)
-0.4 11.4
(-0.0) (0.6)
3.0 13.8
0.0 11.9
2.8 9.8
7.7 12.8
Median
Absolute
Percent
Difference
(%)
9.8
9.7
(0.5)
8.6
(0.5)
9.8
9.2
7.9
9.1
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