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J Can Chiropr Assoc. 2011 Jun;55(2):69-75.

The importance of diagnostic test parameters in the interpretation of clinical test findings: The Prone Hip Extension Test as an example.

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Assistant Professor and CCRF Research Chair in Neuromusculoskeletal Health. Faculty of Kinesiology and Health Studies, University of Regina. Email: . Faculty of Kinesiology and Health Studies. University of Regina, Regina, SK S4S 0A2. Canada. Tel: (306) 337-3343, fax: (306) 585-4854.


The use of diagnostic tests is a crucial aspect of clinical practice since they assist clinicians in establishing whether a patient has or does not have a particular condition. In order for any clinical test to be used most appropriately, it is essential that several parameters be established regarding the test and that these are made known to clinicians to inform their clinical decision making. These include the test's sensitivity, specificity, predictive values, and likelihood ratios. This article reviews their importance as well as provides an illustrative example that highlights how knowledge of the parameters for a given test allows clinicians to better interpret their test findings in practice.


clinical test; diagnostic test; practice

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