Article ; Online: Comparison of Point Accuracy Between Two Widely Used Continuous Glucose Monitoring Systems.
Journal of diabetes science and technology
2024 Volume 18, Issue 3, Page(s) 598–607
Abstract: Background: Safe and effective self-management of glucose levels requires immediate access to accurate data. We assessed the point accuracy of the Dexcom G7 Continuous Glucose Monitoring System (Dexcom, Inc., San Diego, CA, USA) and FreeStyle Libre 3 ( ... ...
Abstract | Background: Safe and effective self-management of glucose levels requires immediate access to accurate data. We assessed the point accuracy of the Dexcom G7 Continuous Glucose Monitoring System (Dexcom, Inc., San Diego, CA, USA) and FreeStyle Libre 3 (Abbott Diabetes Care, Alameda, CA, USA) sensors in a head-to-head comparison. Method: Multicenter, single-arm, prospective, nonsignificant risk evaluation enrolled adults (≥ 18 years) with diagnosed type 1 diabetes (T1D) or type 2 diabetes (T2D). Accuracy was assessed by comparing sensor data to laboratory reference values Yellow Springs Instrument [YSI] and capillary blood glucose values. Outcome measures were differences in mean absolute relative difference (MARD), number and percentage of matched glucose pairs within ±20 mg/dL/±20 of reference values within glucose ranges: < 54, 54 to 69, 70 to 180, 181 to 250, > 250 mg/dL, and combined. Results: Data from 55 adults were included in the analysis. Analysis showed significantly lower MARD with the FreeStyle Libre 3 sensor vs the Dexcom G7 sensor (8.9% vs 13.6%, respectively, Conclusions: The FreeStyle Libre 3 sensor was more accurate than the Dexcom G7 sensor in all metrics evaluated throughout the study period. This is the first head-to-head study to our knowledge that compares the flagship products currently in widespread use of the two largest CGM manufacturers. |
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MeSH term(s) | Humans ; Blood Glucose Self-Monitoring/instrumentation ; Blood Glucose Self-Monitoring/standards ; Female ; Male ; Blood Glucose/analysis ; Middle Aged ; Diabetes Mellitus, Type 1/blood ; Adult ; Diabetes Mellitus, Type 2/blood ; Diabetes Mellitus, Type 2/diagnosis ; Prospective Studies ; Aged ; Reproducibility of Results ; Continuous Glucose Monitoring |
Chemical Substances | Blood Glucose |
Language | English |
Publishing date | 2024-01-08 |
Publishing country | United States |
Document type | Journal Article ; Comparative Study ; Multicenter Study ; Research Support, Non-U.S. Gov't |
ISSN | 1932-2968 |
ISSN (online) | 1932-2968 |
DOI | 10.1177/19322968231225676 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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