For those who haven't looked, this is the abstract from the accuracy test. Given my anecdotal experiences, it is interesting that a MARD of 11.4% was achieved. Based on my sensors vs capillary BG levels, , my average variance has been massively sensor dependent, and in far too many cases, >40% out. I really should look at the data to determine what my MARD is in the period of use.
"Seventy-two adult participants with Type 1 or Type 2 diabetes were prospectively enrolled by 4 US clinical sites. Participants wore two FreeStyle Libre sensors (one on the back of each upper arm) for up to 14 days. Three sensor lots were used, each lot was factory calibrated.
Sensor glucose measurements with the FreeStyle Libre system were recorded over 14 days of sensor wear. About 8 capillary blood glucose (BG) tests, using the blood glucose meter built into the reader, were performed daily by each subject. Tests were completed whether at home or during in-clinic visits.
There were 3 scheduled in-clinic visits of at least 8 hours during the 14-day sensor wear period, each in-clinic visit included venous and capillary sampling at 15 minute intervals.
86.7% of results were in the clinically accurate Zone A of the error grid. Overall, MARD of 11.4% was achieved when compared to capillary BG reference.
No trends in performance of the system were identified with subject characteristics."