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Adjusting for partial verification or workup bias in meta-analyses of diagnostic accuracy studies.
de Groot, Joris A H; Dendukuri, Nandini; Janssen, Kristel J M; Reitsma, Johannes B; Brophy, James; Joseph, Lawrence; Bossuyt, Patrick M M; Moons, Karel G M.
Afiliación
  • de Groot JA; Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, P.O. Box 85500, 3508GA Utrecht, the Netherlands. j.degroot-17@umcutrecht.nl
Am J Epidemiol ; 175(8): 847-53, 2012 Apr 15.
Article en En | MEDLINE | ID: mdl-22422923
A key requirement in the design of diagnostic accuracy studies is that all study participants receive both the test under evaluation and the reference standard test. For a variety of practical and ethical reasons, sometimes only a proportion of patients receive the reference standard, which can bias the accuracy estimates. Numerous methods have been described for correcting this partial verification bias or workup bias in individual studies. In this article, the authors describe a Bayesian method for obtaining adjusted results from a diagnostic meta-analysis when partial verification or workup bias is present in a subset of the primary studies. The method corrects for verification bias without having to exclude primary studies with verification bias, thus preserving the main advantages of a meta-analysis: increased precision and better generalizability. The results of this method are compared with the existing methods for dealing with verification bias in diagnostic meta-analyses. For illustration, the authors use empirical data from a systematic review of studies of the accuracy of the immunohistochemistry test for diagnosis of human epidermal growth factor receptor 2 status in breast cancer patients.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Sesgo / Metaanálisis como Asunto / Interpretación Estadística de Datos / Técnicas y Procedimientos Diagnósticos Tipo de estudio: Diagnostic_studies / Prognostic_studies / Systematic_reviews Aspecto: Ethics Límite: Female / Humans Idioma: En Revista: Am J Epidemiol Año: 2012 Tipo del documento: Article País de afiliación: Países Bajos Pais de publicación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Sesgo / Metaanálisis como Asunto / Interpretación Estadística de Datos / Técnicas y Procedimientos Diagnósticos Tipo de estudio: Diagnostic_studies / Prognostic_studies / Systematic_reviews Aspecto: Ethics Límite: Female / Humans Idioma: En Revista: Am J Epidemiol Año: 2012 Tipo del documento: Article País de afiliación: Países Bajos Pais de publicación: Estados Unidos