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Impact of correlation of predictors on discrimination of risk models in development and external populations

BACKGROUND: The area under the ROC curve (AUC) of risk models is known to be influenced by differences in case-mix and effect size of predictors. The impact of heterogeneity in correlation among predictors has however been under investigated. We sought to evaluate how correlation among predictors af...

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Detalles Bibliográficos
Autores principales: Kundu, Suman, Mazumdar, Madhu, Ferket, Bart
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5395845/
https://www.ncbi.nlm.nih.gov/pubmed/28420342
http://dx.doi.org/10.1186/s12874-017-0345-1