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Korean J Health Promot 2017 ; 17 (4) : p.259~268
Accuracy of Capillary Blood Glucose Test When Fasting in Diabetes Patients or General Population: Performance Evaluation of G300 Based on ISO 15197:2013 Standards

Young-min Jee1,2, Min-hee Seo1,2, Byung-wook Yoo1,2, Sung-ho Hong1,2, Choo-yon Cho1,2, Yong-jin Cho1,3, Jung-eun Oh1,3, Kyung-suk Shin1,4

1Department of Family Medicine, Soonchunhyang University College of Medicine, Asan, Korea 2Department of Family Medicine, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea 3Department of Family Medicine, Soonchunhyang University Cheonan Hospital, Soonchunhyang University College of Medicine, Cheonan, Korea 4Department of Family Medicine, Soonchunhyang University Gumi Hospital, Soonchunhyang University College of Medicine, Gumi, Korea


Background: Self-monitoring of blood glucose plays an important role in management of diabetes mellitus. Blood glucose measurement is based on using plasma glucose separated from whole blood, but many people with diabetes and health care providers use a portable glucose meter for convenience. The aim of this study was to evaluate the accuracy and agreement of G300 portable glucose monitoring system against standard venous glucose testing methods, based on ISO 15197:2013 standards.
Methods: This study was the evaluation of G300 system accuracy following ISO 15197:2013 standards. We estimated precision, system accuracy, hematocrit interference, interfering substances, and user performance.
Results: In repeatability precision evaluation of those glucometers, standard deviation was 2.9-3.7 mg/dL at glucose levels under 100 mg/dL and coefficient of variation was 1.7-3.2% at glucose levels over 100 mg/dL, respectively. In accuracy evaluation, 99.5% of difference values between results of G300 portable glucose monitoring system and clinical laboratory were within 95%. Consensus Error grid analysis showed that all values (100%) are within zone A. Hematocrit range between 20% and 60% did not cause interference. These results were acceptable for the ISO15197:2013 criteria in all glucose concentrations.
Conclusions: This study showed that G300 can provide reliable blood glucose results for patients and health care providers to manage diabetes mellitus, satisfying the ISO 15197:2013 criteria.
Korean J Health Promot 2017;17(4):259-268

Keywords: Blood glucose self-monitoring, Diabetes mellitus, Medical device, Electrochemical techniques


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