- To determine the frequency and temporal changes in application of seven accepted methodological standards for the evaluation of diagnostic tests.
- A search of the MEDLINE database yielded 1302 articles about diagnostic test studies, during a 16-year secular interval, 1978 through 1993, in four prominent general medical journals.
- In the 112 eligible studies, the test was intended for clinical use, indexes of accuracy (sensitivity and specificity or likelihood ratios) were provided, and more than 10 patients were enrolled.
- Although each study was critically reviewed by one primary observer, a subset was independently evaluated for interrater consistency.
Secular increases were found for six of the seven standards in ranges of use from 14% to 31% during 1978-1981 to 1990-1993.
Nevertheless, only one standard, avoidance of workup bias, was fulfilled by more than 50% of studies in the most recent secular interval.
- These results indicate that most diagnostic tests are still inadequately appraised.
The routine demand for methodological standards could raise the quality of diagnostic test information, and the careful predissemination evaluation of diagnostic tests could eliminate useless tests before they receive widespread application.
Mots-clés Pascal : Qualité, Essai, Diagnostic, Méthodologie, Etalon
Mots-clés Pascal anglais : Quality, Test, Diagnosis, Methodology, Standard
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 95-0503859
Code Inist : 002B30A01C. Création : 01/03/1996.