Evaluating the analytical quality control of urinary albumin measurements using sigma metrics

There is no worldwide recognized reference system and standard for urinary albumin measurement until now, so the analytical quality from different laboratories has always varied. In this study, we aimed to evaluate the analytical performance of a urinary albumin assay system using Sigma-metric, and thereby choose a suitable control rule to guarantee the analytical quality of the assays. Two levels of diluted reference material (ERM-DA47OK/IFCC)...