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  • Title: Precision, accuracy, and user acceptance of the OneTouch SelectSimple blood glucose monitoring system.
    Author: Philis-Tsimikas A, Chang A, Miller L.
    Journal: J Diabetes Sci Technol; 2011 Nov 01; 5(6):1602-9. PubMed ID: 22226284.
    Abstract:
    BACKGROUND: The OneTouch® SelectSimple™ blood glucose monitoring system (BGMS) is a device for self-monitoring of blood glucose designed for ease of use. Alarms alert subjects to low [20-69 mg/dl (1.1-3.8 mmol/liter)], high [180-239 mg/dl (9.9-13.2 mmol/liter)], and very high [240-600 mg/dl (13.3-33.1 mmol/liter)] blood glucose readings. METHODS: Repeatability in blood and intermediate precision with aqueous controls were examined using blood from one donor adjusted to different glucose concentrations, and tested with 10 meters and 1 test-strip lot. System accuracy was evaluated with blood samples from 100 diabetes patients tested on 3 test-strip lots, compared with a reference system (YSI 2300 STAT). To test user accuracy, patients (n = 156) and health care professionals (HCPs) tested subject blood with the SelectSimple twice. Health care professionals evaluated subject BGMS technique after a 3-5 day home-testing period. Users evaluated the instructions for use and responded to a user acceptance questionnaire. RESULTS: In repeatability and intermediate precision testing, the SelectSimple BGMS had a coefficient of variation of ≤ 5% or standard deviation of ≤ 5 mg/dl. In the clinical accuracy study, 100% of measurements <75 mg/dl (4.2 mmol/liter) were within ± 15 mg/dl (0.8 mmol/liter) of reference value, and 99.6% of measurements ≥ 75 mg/dl (4.2 mmol/liter) were within ±20%. Patients were able to use the BGMS appropriately and evaluated it as easy to use. Acceptance of the SelectSimple BGMS was within predefined limits. CONCLUSIONS: In these studies, the SelectSimple BGMS met all criteria for precision, system, and user accuracy, was easy to use, and was well accepted by patients.
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