title: [Evidence-based cardiology: practical applications from epidemiology. III. Diagnostic capacity of a clinical test].
abstract: This article reviews different characteristics of  validity in a clinical diagnostic test. In particular, we emphasize the likelihood ratio as an instrument that facilitates the use of epidemiologic concepts in clinical diagnosis.
authors.affiliation: Division of Cardiovascular Disease, Mayo Clinic Minnesota.
authors.forename: Juan Pablo
authors.initials: JP
authors.lastname: Rodríguez-Escudero
authors.forename: Francisco
authors.initials: F
authors.lastname: López-Jiménez
authors.forename: Jorge F
authors.initials: JF
authors.lastname: Trejo-Gutiérrez
mesh_terms: D000328:Adult; D002309:Cardiology; D003935:Diagnostic Techniques, Cardiovascular / Q000706:statistics & numerical data*; D004813:Epidemiology; D019317:Evidence-Based Medicine; D005260:Female; D006331:Heart Diseases / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D011336:Probability; D012680:Sensitivity and Specificity