TITLE

Outlier detection for a hierarchical Bayes model in a study of hospital variation in surgical procedures

AUTHOR(S)
Farrell, Patrick J.; Groshen, Susan; MacGibbon, Brenda; Tomberlin, Thomas J.
PUB. DATE
December 2010
SOURCE
Statistical Methods in Medical Research;Dec2010, Vol. 19 Issue 6, p601
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
One of the most important aspects of profiling healthcare providers or services is constructing a model that is flexible enough to allow for random variation. At the same time, we wish to identify those institutions that clearly deviate from the usual standard of care. Here, we propose a hierarchical Bayes model to study the choice of surgical procedure for rectal cancer using data previously analysed by Simons et al.1 Using hospitals as random effects, we construct a computationally simple graphical method for determining hospitals that are outliers; that is, they differ significantly from other hospitals of the same type in terms of surgical choice.
ACCESSION #
55563389

 

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