Evaluation of home glucose measuring devices

Area of Science:

• Clinical Chemistry
• Medical Devices
• Diabetes Management

Background:

• Numerous home glucose-monitoring systems are available for diabetes self-management.
• Evaluating the accuracy and reliability of these devices is crucial for patient care.

Purpose of the Study:

• To assess the accuracy, precision, and variability of various home glucose-monitoring systems.
• To determine the suitability of different systems for patient use in home glucose monitoring.

Main Methods:

• Comparison of whole blood glucose measurements from home systems against a reference method in a clinical setting.
• Evaluation of accuracy (mean difference) and precision (standard deviation of differences).
• Assessment of model and operator variability for each system.

Main Results:

• The 20-800 BM Glycemia strips showed good performance with experienced operators but high interoperator variability.
• Machine-based systems demonstrated reduced interoperator differences compared to strip-only methods.
• The Glucochek Mk I system did not meet satisfactory performance standards.
• All tested systems exhibited decreased accuracy and precision at blood glucose levels exceeding 15.0 mmol/L.

Conclusions:

• A dedicated machine is not essential for all home glucose-monitoring systems.
• Patient training and regular verification of results against a reference method are vital for reliable home monitoring.
• Home glucose monitoring is unreliable in patients with significant hyperglycemia.