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A glucose meter accuracy and precision comparison: the FreeStyle Flash Versus the Accu-Chek Advantage, Accu-Chek Compact Plus, Ascensia Contour, and the BD Logic



A glucose meter accuracy and precision comparison: the FreeStyle Flash Versus the Accu-Chek Advantage, Accu-Chek Compact Plus, Ascensia Contour, and the BD Logic



Diabetes Technology and Therapeutics 10(2): 102-110



This study compared the accuracy and precision of five blood glucose (BG) meters. Diabetes patients undergoing venipuncture for glucose testing were randomized to one of two groups consisting of three meters: FreeStyle Flash (Abbott Diabetes Care, Alameda, CA), Accu-Chek Advantage (Roche Diagnostics Corp., Indianapolis, IN), and Accu-Chek Compact Plus (Roche Diagnostics) or FreeStyle Flash, Ascensia Contour (Bayer Healthcare, Diagnostic Division, Tarrytown, NY), and BD Logic (BD Diabetes Care, Franklin Lake, NJ). Within 5 min following venipuncture, duplicate finger BG measurements from three ipsilateral fingers were taken. Finger glucose measurements were compared with laboratory reference values. Accuracy was assessed by a Clarke error grid analysis (EGA) and within 10% of the laboratory value criteria. Meter precision was determined by calculating the absolute mean differences in glucose values between duplicate samples. Finger sticks were obtained from 202 patients. Mean venipuncture BG was 148 mg/dL (SD +/- mg/64 dL; range 25-439 mg/dL). Accuracy by Clarke EGA (Zone A results) was demonstrated in 69% of Advantage samples, 75% of Compact Plus, and 96% of the first group of Flash versus 88% of the Contour, 67% of the Logic, and 91% of the second Flash samples (P < 0.05 for both Flash and Contour). Meter accuracy using the 10% criteria was demonstrated in 30%, 38%, 70%, 46%, 48%, and 68% of the samples, respectively (P < 0.05 for both Flash groups compared to each of the other meters). There were no differences in meter precision. No statistically significant differences in accuracy were evident using the Clarke EGA criteria (pooled results of Zone A and B), though the more strict 20% accuracy criteria (Zone A results only) found the Flash and Contour to have significantly greater accuracy compared to the Advantage, Compact Plus, and the Logic. Using the 10% accuracy criteria found the Flash to have significantly greater accuracy than each of the other four meters. All five meters demonstrated similar precision.

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Accession: 051141708

Download citation: RISBibTeXText

PMID: 18260773

DOI: 10.1089/dia.2007.0244


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