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논문 기본 정보

자료유형
학술저널
저자정보
Choi Yu Jeong (Department of Laboratory Medicine Yonsei University College of Medicine Seoul Korea) Kang Hyein (Department of Laboratory Medicine Yonsei University College of Medicine Seoul Korea) Cho Chan-Ik (Korea Disease Control and Prevention Agency Osong Health Technology Administration Complex Cheongju Korea) Rim John Hoon (Department of Laboratory Medicine Yonsei University College of Medicine Seoul Korea) Lee Sang-Guk (Department of Laboratory Medicine Yonsei University College of Medicine Seoul Korea) Lim Jong-Baeck (Department of Laboratory Medicine Yonsei University College of Medicine Seoul Korea)
저널정보
대한진단검사의학회 Annals of Laboratory Medicine Annals of Laboratory Medicine 제43권 제2호
발행연도
2023.3
수록면
167 - 173 (7page)
DOI
10.3343/alm.2023.43.2.167

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Background: Accurate measurement of glycated hemoglobin (HbA1c) is crucial for a diabetes diagnosis and subsequent patient management. The detection method and presence of variant Hb can interfere with HbA1c measurements. We evaluated the HbA1c-measuring performance of the DxC 700 AU (Beckman Coulter, Brea, CA, USA) immunoassay-based device in comparison with another immunoassay device and the reference method. Methods: A total of 120 normal and 14 variant Hb samples were analyzed using the Cobas c 513 (Roche Diagnostics, Mannheim, Germany) and DxC 700 AU analyzers. Variant Hb samples were also analyzed using the reference method, along with 20 normal samples. The accuracy, precision, linearity, and carryover were determined. Results: DxC 700 AU results strongly correlated with those of Cobas c 513 and exhibited accuracy in comparison with the reference method. The within-run, between-run, between-day, and total imprecision (%CV) values for the low- and high-concentration control materials were below 2%. The results of DxC 700 AU were linear over a wide HbA1c range (3.39%–18.30%). Although DxC 700 AU performed well in the presence of variant Hb, the HbA1c concentration was underestimated in the presence of fetal Hb. The possibility of interference from a high HbH proportion could not be ruled out. Conclusions: The overall analytical performance of DxC 700 AU was acceptable. The device is accurate, precise, and linear over a wide HbA1c concentration range. Although DxC 700 AU results highly correlated with those of Cobas c 513, caution should be exercised in cases of high HbF and HbH concentrations.

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