Question

What is the degree of agreement (accuracy) between the screening test (for factor x) and the definitive diagnosis

Answer 1

correct disease status depends on the accuracy of the ... The diagnostic test is performed after a positive screening ... Use a 2 x 2 table to compare the performance of the new test.

Answer 2

ANSWER

Screening tests are offered to asymptomatic people who may or may not have early disease or disease precursors and test results are used to guide whether or not a diagnostic test should be offered. ... The result of the test is an estimate of the level of risk and determines whether a diagnostic test is justified.

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