real prevalence
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real prevalence
A technique of measuring prevalence. It is needed because of the significant errors in estimation of prevalence when the definitive test has high sensitivity but low specificity. When Se = selectivity, Sp = specificity, the real prevalence (RP) can be estimated from the apparent prevalence (AP) by the formula:
$$\hbox{RP}={\hbox{AP\ +\ S}_{\rm p}-1\over \hbox{S}_{\rm p}+ \hbox{S}_{\rm e}-1}}$$
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real prevalence
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Saunders Veterinary Dictionary
Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved.
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