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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...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2017
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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 |