Dexcom G6 User Manual page 319

Precision of System Readings
A subset of randomly selected subjects wore two Systems at the same time (n=67).
This was to look at how similarly two Systems function on the same subject (sensor
precision) under the same condition. Precision was evaluated by comparing the glucose
readings from the two Systems worn on the same subject at the same time on the
same location.
Table 9 shows that the readings from the two sensors generally agreed with each
other. For adults (18+ years old) on abdomen, absolute relative difference (ARD)
between the two Systems was 8.9% with coefficient of variation (CV) of 7.9%. For
pediatrics (2-5 years old) on upper buttocks, paired ARD was 5.2% with CV of 4.8%.
Table 9. Precision by Wear Location
CGM-CGM
Matched Pairs (n)
Paired Absolute
Difference (mg/dL)
Paired Absolute
Relative
Difference (%)
Coefficient of
Variation (%)
Dexcom G6 ® System User Guide
Appendix F: Technical Information
Adults Pediatrics
(18+ YO) (6-17 YO)
Abdomen Abdomen
23,019 1,255
14.0 14.5
8.9 9.4
7.9 7.6
Pediatrics Pediatrics
(6-17 YO) (2-5 YO)
Upper Upper
Buttocks Buttocks
12,230 2,638
16.4
10.7
8.5
9.4
5.2
4.8
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