Bhattacharya: a new application for quality control
| Autor: | R B Dinkelaar, H J van der Helm, Wytze P. Oosterhuis, T A Modderman, A H Zwinderman |
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| Rok vydání: | 1991 |
| Předmět: |
Systematic error
Quality Control 030213 general clinical medicine medicine.medical_specialty media_common.quotation_subject Clinical Biochemistry Control (management) Normal Distribution 030209 endocrinology & metabolism Sensitivity and Specificity 03 medical and health sciences 0302 clinical medicine Statistics medicine Methods Cluster Analysis Humans Quality (business) media_common Mathematics Quality control Reproducibility of Results General Medicine Internal quality Surgery Reference intervals Blood Coagulation Tests Reagent Kits Diagnostic |
| Zdroj: | Annals of clinical biochemistry. 28 |
| ISSN: | 0004-5632 |
| Popis: | The Bhattacharya method and the ‘average of normals’ method for internal quality control were compared. Both are based on unselected patient test results. The Bhattacharya method is mostly used in clinical chemistry for calculation of reference intervals but could be modified for quality control procedures. Using the data of a coagulation test and simulating systematic errors, it was concluded that the Bhattacharya method is more sensitive to expected shifts and is more flexible than the ‘average of normals’ method. |
| Databáze: | OpenAIRE |
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