Assessing the analytical performance of systems for self-monitoring of blood glucose: concepts of performance evaluation and definition of metrological key terms.

Abstract

Reliability of blood glucose (BG) measurements is a prerequisite for successful diabetes management. Publications on the evaluation of self-monitored glucose values, however, are frequently characterized by a confusion in terminology. We provide an inventory of key terms such as accuracy, trueness, precision, traceability, calibration, and matrix effect to avoid future misunderstanding. Definitions are taken from the metrological literature and international norms and explained in a language intended for nonspecialists in metrology. The terms are presented in light of the need to apply generally accepted definitions. In addition, a description of requirements and components for a sound evaluation of BG measurement systems is presented. These factors will also enable improvement in future comparisons of study results.

• Authors: Oliver Schnell, Rolf Hinzmann, Bernd Kulzer, Guido Freckmann, Michael Erbach, Volker Lodwig, Lutz Heinemann
• Journal: Journal of diabetes science and technology (J Diabetes Sci Technol) Vol. 7 Issue 6 Pg. 1585-94 (Nov 01 2013) ISSN: 1932-2968 [Electronic] United States
• PMID: 24351185 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Review)
• Copyright: © 2013 Diabetes Technology Society.

Chemical References

• Blood Glucose

Topics

• Blood Glucose (analysis)
• Blood Glucose Self-Monitoring (instrumentation, methods, standards)
• Calibration
• Diabetes Mellitus (blood)
• Humans
• Reference Standards
• Reproducibility of Results
• Terminology as Topic