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specificity
(redirected from test specificity)

   Also found in: Dictionary/thesaurus, Medical, Legal, Wikipedia 0.01 sec.
specificity [‚spes·ə′fis·əd·ē]
(chemistry)
The selective reactivity that occurs between substances, such as between an antigen and its corresponding antibody.


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Usually a cutoff of 30 u/ml is used with test specificity of 75 percent and sensitivity of 81 percent.
5 Asian 1/90 1/32,100 Unk Unk Post-test risk of CF-affected Ethnic group infant Caucasian: All 1/140 Northern European 1/290 Ashkenazi Jew 1/930 Hispanic 1/105 Black 1/207 Asian Unk (a) NPV, negative predictive value = (specificity(1-p))/(specificity (1-p)+(1-sensitivity)p), where test specificity is assumed to be 1.
This important research finding clearly demonstrates significantly better test specificity (the ability to produce a normal result in those persons without cardiac disease) for the EBT coronary artery scan for calcification than had previously been thought.
 
 
 
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