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Error Rate, Precision, and Accuracy in Immunohematology
Author(s) -
Grindon A. J.,
Eska P. L.
Publication year - 1977
Publication title -
transfusion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.045
H-Index - 132
eISSN - 1537-2995
pISSN - 0041-1132
DOI - 10.1046/j.1537-2995.1977.17578014578.x
Subject(s) - reproducibility , statistics , word error rate , accuracy and precision , computer science , range (aeronautics) , observational error , measure (data warehouse) , type i and type ii errors , quality (philosophy) , mathematics , data mining , artificial intelligence , engineering , philosophy , epistemology , aerospace engineering
Quality control in the blood bank has traditionally been concentrated in the areas of reagents, equipment, and components. We have found that it can be extended to the measurement of error rate, accuracy, and reproducibility as well. We propose the use of a “correction rate” as a correlate of actual error rate, since numbers of errors in final ABO interpretations are infrequent and difficult to accumulate. We have measured accuracy as the frequency of false positive and false negative results, using weakly active antibodies both in the test situation and in actual practice. Finally, reproducibility can be measured with a series of coded duplicate samples covering the range of immunohematologic reactivity. By using these methods, a laboratory can regularly measure error rate, accuracy, and reproducibility as part of its quality control program.