Effects of Prevalence on Diagnostic Tests
Effects of Prevalence on Diagnostic Tests
Objectives
By the end of this module, you should be able to:
- recall how to construct a 2X2 table and calculate diagnostic test statistics
- define prevalence and pre-test probability
- calculate prevalence
- describe and interpret the effect prevalence has on diagnostic test statistics
References
Users’ guides to the medical literature: a manual for evidence-based clinical practice / The Evidence-Based Medicine Working Group ; edited by Gordon Guyatt, Drummond Rennie. Chicago, IL : AMA Press, c2002.
Fletcher, Robert H. Clinical epidemiology : the essentials / Robert H. Fletcher, Suzanne W. Fletcher. 4th ed. Baltimore : Lippincott Williams & Wilkins, c2005.
Users’ guides to the medical literature: a manual for evidence-based clinical practice / The Evidence-Based Medicine Working Group ; edited by Gordon Guyatt, Drummond Rennie. Chicago, IL : AMA Press, c2002.
Fletcher, Robert H. Clinical epidemiology : the essentials / Robert H. Fletcher, Suzanne W. Fletcher. 4th ed. Baltimore : Lippincott Williams & Wilkins, c2005.