Reevaluation of the power of error detection of Westgard multirules.

摘要: The multirules system for optimizing assay error detection originally developed by James Westgard and others is now widely used in clinical pathology laboratories (1). power of various combinations rules to detect changes performance can be assessed use function charts (2), some which are freely available on the QC website (3). In this report I reassess that require data from more than one quality-control (QC) run. Variables adjusted setting a protocol, modeled charts, include choice rules, number samples run (n), runs over (R). development other variables must also clearly defined so represent actual practice laboratory. Westgard’s divided into within-run where decision-making within run, cross-run required (R >1). Using approved terminology (4), examples n = 2 13s 22s, 41s 10x. Within-run preferable because they will allow as soon possible after change. Cross-run commonly added with aim gaining additional meet quality specifications. In spreadsheet application develop assessing when included. Specifically, …