Dexcom G6 Pro - Accuracy Tables

G6 Pro User Guide
115Appendix G: Technical Information
Accuracy
Accuracy of the G6 is characterized by assessing its readings against
blood glucose values from YSI. Accuracy of the G6 was assessed with
paired G6 Pro readings to YSI blood glucose values. For blood glucose
values less than or equal to 70 mg/dL, the absolute difference in mg/
dL between the two glucose results was calculated. For values greater
than 70 mg/dL, the absolute difference (%) relative to the YSI values
was calculated. In addition, the mean absolute relative difference
(MARD) shows the average amount the sensor readings differ from the
YSI glucose. The percentages of total readings within 20 mg/dL or 20%
(20/20%) are provided in Tables 1-A. The tables are further categorized
within CGM glucose ranges, within age groups, and sensor wear
locations (Tables 1-B to 1-E) and categorized within YSI glucose ranges
(Tables 1-F to 1-I). When your patient sees a CGM reading on their
mobile application, these tables show how likely their readings match
their blood glucose level (measured by YSI in the study). These tables
include overall pooled data from both G6 studies.
For example, the total number of data pairs considered in the analysis
was 25,101. Of these, 91.7% of the G6 Pro readings fall within ± 20 mg/
dL of the YSI blood glucose values < 70 mg/dL and within ± 20% of YSI
blood glucose values ≥ 70 mg/dL.