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General Internal Medicine: Clinical Epidemiology 

General Internal Medicine: Clinical Epidemiology
General Internal Medicine: Clinical Epidemiology

Scott C. Litin

and John B. Bundrick

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date: 17 January 2021

This chapter has four goals: describe the diagnostic test characteristics of sensitivity and specificity, demonstrate the influence of disease prevalence on positive and negative predictive values, illustrate how clinicians may use likelihood ratios to analyze the results of a diagnostic test, and review common measures for reporting the magnitude of benefit and harm from a therapeutic intervention.

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