User`s guide

Dexcom G4 PLATINUM (Pediatric) System User’s Guide | 165
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Table 4-B. System Difference to YSI within CGM
Glucose Ranges (Adult Study)
CGM
Glucose
Ranges
mg/dL
(mmol/L)
Number
of paired
CGM-YSI
Mean
Percent
Difference
(%)
Median
Percent
Difference
(%)
Mean
Absolute
Percent
Difference
(%)
Median
Absolute
Percent
Difference
(%)
Overall 9152 2.9 1.7 13.3 9.8
*40-60
(2.2-3.3)
512
-10.0
(-0.6)
-8.2
(-5.2)
13.5
(0.8)
9.7
(0.5)
*61-80
(3.4-4.4)
781
-2.4
(-0.1)
-0.4
(-0.0)
11.4
(0.6)
8.6
(0.5)
81-180
(4.5-10.0)
3853 4.8 3.0 13.8 9.8
181-300
(10.1-16.7)
2784 2.1 0.0 11.9 9.2
301-350
(16.7-19.4)
775 3.8 2.8 9.8 7.9
351-400
(19.4-22.2)
447 10.4 7.7 12.8 9.1
*For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.
Low and High Glucose Alerts
The ability of the System to detect high and low glucose levels
(concentrations) is assessed by comparing System results to YSI results
at low and high blood glucose levels and determining if the alert may
have sounded. The System and YSI readings were compared by pairing