Dexcom G6 User Manual page 304

Trend Accuracy
Trend accuracy explains how well the G6 captures the time-dependent characteristics
of glucose fluctuation.
The following examples quantify G6's Trend Accuracy:
1. When the G6 CGM rate of change is rapidly rising (≥ 2 mg/dL/min), how often is
reference glucose also rising? The answer is 71.3% of the time for adults and
67.1% for pediatrics.
2. When the G6 CGM rate of change is rapidly falling (≤ 2 mg/dL/ min), how often is
reference glucose also falling? The answer is 98.0% of the time.
3. When the G6 CGM rate of change is stable (≥ -1 mg/dL/min and ≤ 1 mg/dl/ min),
how often is glucose changing rapidly (≥ 2 mg/dL/min or ≤ 2 mg/dL/ min)? The
answer is only 1.9% of the time.
Table 4-A. Trend Accuracy Rate of Change (Adults; n=159)
CGM Rate
Range
(mg/dL/min)
<-2 53.3%
[-2,-1)
[-1,0)
[0,1]
(1,2]
>2
Dexcom G6 ® System User Guide
Appendix F: Technical Information
YSI glucose range (mg/dL)
<-2 [-2,-1) [-1,-0)
35.0% 9.9%
7.4% 56.9% 32.5%
0.4% 9.5% 76.9%
0.1% 1.0% 26.2%
0.0% 0.4% 3.1%
0.1% 0.1% 0.8%
[0,1] (1,2]
1.5% 0.0% 0.2%
2.9% 0.3% 0.0%
12.5% 0.6% 0.1%
60.6% 10.6% 1.6%
26.8% 52.9% 16.8%
5.6% 22.1% 71.3%
CGM-YSI
Pairs
(n)
>2
463
2,077
7,986
5,199
1,734
1,367
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