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Understanding diagnostic tests 2: likelihood ratios, pre‐ and post‐test probabilities and their use in clinical practice

Acta Paediatrica · 2007 · Vol. 96(4) · pp. 487–491
Anthony K Akobeng

Abstract

Likelihood ratios summarize information about a diagnostic test by combining sensitivity and specificity. The Fagan's nomogram is a useful and convenient graphical tool that allows likelihood ratios to be used in conjunction with a patient's pre-test probability of disease to estimate the post-test probability of disease.

Celiac Disease Research and ManagementGenetic factors in colorectal cancerGenetic Associations and EpidemiologyNomogramPre- and post-test probabilityBayes' theoremLikelihood-ratio testLikelihood ratios in diagnostic testingMedicineStatisticsLikelihood principleTest (biology)Score test

MeSH terms

Celiac DiseaseChildDiagnostic Tests, RoutineFemaleHumansInfantMalePredictive Value of TestsProbabilityLikelihood FunctionsRisk Assessment
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