ArticleJournal of clinical laboratory analysis2019
Comparative analysis of calculating sigma metrics by a trueness verification proficiency testing-based approach and an internal quality control data inter-laboratory comparison-based approach.
Article in Journal of clinical laboratory analysis, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
9 citing papers in PubMed.
- Evaluation of clinical chemistry using diluted sera in mice and rats.BMC veterinary research · 2026Article
- The Application of Six Sigma to Assess the Analytical Performance of Plasma Proteins and Design a Risk-Based Statistical Quality Control Strategy: A Multicenter Study.Journal of clinical laboratory analysis · 2025Article
- The application of sigma metrics in the laboratory to assess quality control processes in South Africa.African journal of laboratory medicine · 2022Article
- Application of Sigma metrics in the quality control strategies of immunology and protein analytes.Journal of clinical laboratory analysis · 2021Article
- Internal Quality Control Data of Urine Reagent Strip Tests and Derivation of Control Rules Based on Sigma Metrics.Annals of laboratory medicine · 2021Article
- Sigma metrics of Alinity ci system - a study on thirty-nine clinical chemistry and immunoassay parameters.Advances in laboratory medicine · 2021Article
- Sigma metrics application for validated and non-validated detecting systems performance assessment.Journal of clinical laboratory analysis · 2021Article
- Evaluation of the analytical performance of endocrine analytes using sigma metrics.Journal of clinical laboratory analysis · 2021Article
- Comparative analysis of calculating sigma metrics by a trueness verification proficiency testing-based approach and an internal quality control data inter-laboratory comparison-based approach.Journal of clinical laboratory analysis · 2019Article
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
introductionTwo methods were compared for evaluating the sigma metrics of clinical biochemistry tests using two different allowable total error (TEa) specifications. MATERIALS AND
methodsThe imprecision (CV%) and bias (bias%) of 19 clinical biochemistry analytes were calculated using a trueness verification proficiency testing (TPT)-based approach and an internal quality control data inter-laboratory comparison (IQC)-based approach, respectively. Two sources of total allowable error (TEa), the Clinical Laboratory Improvement Amendments of 1988 (CLIA '88) and the People's Republic of China Health Industry Standard (WS/T 403-2012), were used to calculate the sigma metrics (σ
resultsFor both approaches, σ
conclusionsBoth methods can be used as references for calculating sigma metrics and designing QC schedules in clinical laboratories. Sigma metrics should be evaluated comprehensively by different approaches.
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Registered trials
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