An evaluation of automated methods for measurement of serum 25-hydroxyvitamin D.

作者: Dennis Wagner , Heather E.C. Hanwell , Reinhold Vieth

DOI: 10.1016/J.CLINBIOCHEM.2009.07.013

关键词:

摘要: Abstract Objectives To compare two new automated assays with the well-established reference method, DiaSorin radioimmunoassay (RIA), for quantitation of serum total 25-hydroxyvitamin D [25(OH)D]. Methods 25(OH)D from human sera (n = 158) was measured using RIA and platforms, “LIAISON 25 OH Vitamin TOTAL”, Roche Modular “Vitamin D3 (25-OH)”. were compared by regression Bland–Altman analyses. Results LIAISON demonstrated a stronger correlation (r = 0.918) better agreement (bias = − 0.88 nmol/L) than assay (r = 0.871, bias = − 2.55 nmol/L). Precision ranges (CV%) RIA, LIAISON, assays, respectively, were: within run (6.8–12.9%, 2.8–8.1%, 1.9–5.5%), precision (7.4–14.5%, 7.3–17.5%, 7.6–14.5%). Conclusion displayed best RIA. The TOTAL is an accurate precise tool determination.

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