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Event Date: 

Monday, April 8, 2019 - 12:00pmProfessor, Department of Population Health Sciences, and Department of Biostatistics and Medical Informatics

Event Location: 

1335 Health Sciences Learning Center

Contact Info: 

Rosalind Bendix-Lewis, (608) 265-0516

PHS Monday Seminar- Ron Gangon, PhD: "Simultaneous Ranking and Clustering of Counties Based on Health Indices"


A common task is ranking different geographic units (small area), e.g. counties in the United States, based on health (or socioeconomic) outcomes/determinants. We propose a nonparametric empirical Bayes (finite mixture) model for small area health outcomes that is suitable for simultaneous ranking and clustering of small areas. Optimal point estimates of the ranks are obtained to minimize expected integrated squared error loss on the health outcome (mean or proportion) scale. Small areas are simultaneously clustered by assigning each small area to the modal cluster (mixture component) for its estimated rank position. We illustrate our approach with an analysis of percent low birth weight births for Arizona counties, 2008-2014.

Supplemental Materials: 
PDF icon gangnon_cv_jan2019.pdf