Precision Of System Readings; Precision By Wear Location - Dexcom G6 Pro User Manual

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 (%)
G6 Pro User Guide
Appendix G: Technical Information
Adults Pediatrics
(18+ YO) (6-17 YO)
Abdomen Abdomen
23,019
14.0
8.9
7.9
Pediatrics
(6-17 YO)
Upper
Buttocks
1,255 12,230
14.5 16.4
9.4 10.7
7.6
Pediatrics
(2-5 YO)
Upper
Buttocks
2,638
9.4
5.2
8.5 4.8
142