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Using Radar Plots to Demonstrate the Accuracy and Precision of 6 Blood Glucose Monitoring Systems
Scott Pardo1, Nancy Dunne1, David A Simmons1
11 Ascensia Diabetes Care, Parsippany, NJ.
Journal of Diabetes Science and Technology
|June 13, 2017
Summary
Radar Plots visually compare blood glucose monitoring system (BGMS) accuracy. The CONTOUR®NEXT (CN) BGMS demonstrated high accuracy, with 99.6% of results meeting ISO 15197:2013 criteria, outperforming other systems evaluated.
Area of Science:
- Medical Devices
- Biomedical Engineering
- Clinical Diagnostics
Background:
- Previous evaluations compared fingertip capillary blood glucose monitoring systems (BGMSs) against a YSI glucose analyzer.
- This study introduces Radar Plots for visualizing BGMS accuracy and precision data.
Purpose of the Study:
- To graphically represent accuracy and precision results of BGMSs using Radar Plots.
- To assess if BGMS measurements meet ISO 15197:2013 accuracy criteria.
Main Methods:
- Radar Plots were used to visualize analytical performance data.
- Concentric circles represent error magnitude; data points indicate deviation from reference values.
- The "15-15 Zone" defines acceptable error limits (±15 mg/dL or ±15%).
Main Results:
- The percentage of results within the "15-15 Zone" varied from 83.6% to 99.8% across six BGMSs.
- The CONTOUR®NEXT (CN) BGMS achieved 99.6% of results within the "15-15 Zone".
Conclusions:
- Radar Plots offer a novel method for visually comparing BGMS analytical performance.
- The tight clustering of CN data points on the Radar Plot indicates superior analytical performance compared to other systems.
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