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A comparative study of Tosoh G11 and Bio-Rad D-100 analyzers for HbA1c analysis
Jönköping University, School of Health and Welfare, HHJ, Department of Natural Science and Biomedicine.
Jönköping University, School of Health and Welfare, HHJ, Department of Natural Science and Biomedicine.
2023 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
En jämförande studie av Tosoh G11 och Bio-Rad D-100 för HbA1c -analys (Swedish)
Abstract [en]

Diabetes mellitus is one of the most common diseases worldwide. The continued prevalence increase, together with the complexity of the disease with severe long-term complications makes efficient diagnostical and monitorial methods very important. The determination of glycated hemoglobin, HbA1c, plays an important role in both, underlying the importance of high-quality analytical instruments. Whenever a new instrument is introduced into routine clinical use an evaluation is needed. This study evaluated the agreement between the new Tosoh G11 HbA1c high performance liquid chromatography system as a replacement for the Bio-Rad D-100 at the Chromatographic Department of the Institute of Laboratory Medicine, Faculty of Medicine, University of Debrecen. In total, 66 samples were analyzed using both analyzers and a Bland-Altman comparison was performed together with a correlation study. Additionally, a linearity check, optimal error and routine error testing was carried out specifically for the Tosoh G11. The results showed high agreement between measurements, r=0.9975 (p<0.001) for HbA1c mmol/mol and r=0.9971 (p<0.001) for HbA1c %. High repeatability and accuracy were observed of the Tosoh G11 with the highest variation coefficient of 1.50 % and linearity r =0.9999. The conducted study supports the replacement of the Bio-Rad D-100 to the Tosoh G11.  

Abstract [sv]

Diabetes mellitus är en av de vanligaste världsomfattande sjukdomarna. Fortsatt prevalensökning, tillsammans med den komplexa sjukdomsbilden innefattande allvarliga långsiktiga komplikationer gör effektiva diagnostiska och övervakande metoder väldigt viktiga. Bestämning av glykerat hemoglobin, HbA1c, spelar en viktig roll i båda, vilket kräver att analysinstrument av hög kvalitet finns. När ett nytt instrument introduceras inom kliniska rutinanalyser krävs utvärdering. Denna studie utvärderade överrensstämmelsen mellan det nya Tosoh G11 HbA1c högupplösande vätskekromatografisystemet som en ersättning för Bio-Rad D-100 på den kromatografiska enheten av laboratoriemedicin på Debrecens universitet. Totalt analyserades 66 prov med respektive instrument och Bland-Altman jämförelse genomfördes tillsammans med en korrelationsstudie. Dessutom utfördes ett linjäritetstest, optimal- och rutinfeltest specifikt för Tosoh G11. Resultaten visade en hög överrensstämmelse mellan mätningarna, r=9975 (p<0.001) för HbA1c mmol/mol och r =9971 (p<0.001) för HbA1c %. Tosoh G11 visade hög repeterbarhet och noggrannhet, med den högsta variationskoefficient på endast 1.50 % och en linjäritet på r=0.9999. Den genomförda studien stödjer Tosoh G11 som ersättning för Bio-Rad D-100. 

Place, publisher, year, edition, pages
2023.
Keywords [en]
Analyzer evaluation, Diabetes mellitus, glycated hemoglobin, high performance liquid chromatography, instrument comparison
National Category
Biomedical Laboratory Science/Technology
Identifiers
URN: urn:nbn:se:hj:diva-61403ISRN: JU-HHJ-BLA-1-20230138OAI: oai:DiVA.org:hj-61403DiVA, id: diva2:1771700
External cooperation
University of Debrecen
Subject / course
HHJ, Biomedical Laboratory Science
Available from: 2023-06-21 Created: 2023-06-20 Last updated: 2025-10-13Bibliographically approved

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