Effect of a New International Reference Preparation for Proteins in Human Serum (Certified Reference Material 470) on Results of the College of American Pathologists Surveys for Plasma Proteins

Autor: Per Hyltoff Petersen, Anders Carlström, Thomas B. Ledue, A. Myron Johnson, John T. Whicher, Yoshihisa Itoh
Rok vydání: 2000
Předmět:
Zdroj: Archives of Pathology & Laboratory Medicine. 124:1496-1501
ISSN: 1543-2165
0003-9985
DOI: 10.5858/2000-124-1496-eoanir
Popis: Objective.—To examine the impact of a new international reference preparation for serum proteins on the among-manufacturer variance in the College of American Pathologists Surveys. Data Source.—The results of the Surveys for the years 1993–1998, supplied by the College of American Pathologists. Data Extraction and Synthesis.—Mean values for manufacturers' assays were compared for each protein in the quality control samples. Results were separated by the reported reference material from which values for calibrators had been transferred. Standard statistical parameters (means, standard deviations, and coefficients of variation) were calculated from the reported means. Conclusions.—Among-manufacturer coefficients of variation have dropped significantly for most serum proteins since the introduction of the new reference material. Possible reasons for continued differences are discussed.
Databáze: OpenAIRE