Assessing the Validity of Diagnostic Tests
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15 صفحه اولAssessing the usefulness of diagnostic tests.
Ideally, to ascertain the usefulness of a given medical treatment, investigators organize broad multicenter trials, such as the North American Symptomatic Carotid Endarterectomy Trial (NASCET) (1), in which they can compare outcomes in a sufficiently large number of patients. One could argue that a comparable method should be used for the evaluation of diagnostic tools. After all, it ultimately...
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full textAssessing the diagnostic accuracy of a sequence of tests.
We consider the assessment of the overall diagnostic accuracy of a sequence of tests (e.g. repeated screening tests). The complexity of diagnostic choices when two or more continuous tests are used in sequence is illustrated, and different approaches to reducing the dimensionality are presented and evaluated. For instance, in practice, when a single test is used repeatedly in routine screening,...
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Journal title
volume 37 issue 1
pages 2-
publication date 2012-03-01
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