DISCOVERING INTERACTIONS USING COVARIATE INFORMED RANDOM PARTITION MODELS

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dc.contributor.authorPage, Garritt L.
dc.contributor.authorQuintana, Fernando A.
dc.contributor.authorRosner, Gary L.
dc.date.accessioned2025-01-20T23:51:27Z
dc.date.available2025-01-20T23:51:27Z
dc.date.issued2021
dc.description.abstractCombination chemotherapy treatment regimens created for patients diagnosed with childhood acute lymphoblastic leukemia have had great success in improving cure rates. Unfortunately, patients prescribed these types of treatment regimens have displayed susceptibility to the onset of osteonecrosis. Some have suggested that this is due to pharmacokinetic interaction between two agents in the treatment regimen (asparaginase and dexamethasone) and other physiological variables. Determining which physiological variables to consider when searching for interactions in scenarios like these, minus a priori guidance, has proved to be a challenging problem, particularly if interactions influence the response distribution in ways beyond shifts in expectation or dispersion only. In this paper we propose an exploratory technique that is able to discover associations between covariates and responses in a general way. The procedure connects covariates to responses flexibly through dependent random partition distributions and then employs machine learning techniques to highlight potential associations found in each cluster. We provide a simulation study to show utility and apply the method to data produced from a study dedicated to learning which physiological predictors influence severity of osteonecrosis multiplicatively.
dc.fuente.origenWOS
dc.identifier.doi10.1214/20-AOAS1372
dc.identifier.eissn1941-7330
dc.identifier.issn1932-6157
dc.identifier.urihttps://doi.org/10.1214/20-AOAS1372
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/94817
dc.identifier.wosidWOS:000631414500001
dc.issue.numero1
dc.language.isoen
dc.pagina.final21
dc.pagina.inicio1
dc.revistaAnnals of applied statistics
dc.rightsacceso restringido
dc.subjectMultiplicative associations
dc.subjectdependent random partition models
dc.subjectnonparametric Bayes
dc.subjectexploratory data analysis
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleDISCOVERING INTERACTIONS USING COVARIATE INFORMED RANDOM PARTITION MODELS
dc.typeartículo
dc.volumen15
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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