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Comparing methods of grouping hospitals.


ABSTRACT: OBJECTIVE:To compare the performance of widely used approaches for defining groups of hospitals and a new approach based on network analysis of shared patient volume. STUDY SETTING:Non-federal acute care hospitals in the United States. STUDY DESIGN:We assessed the measurement properties of four methods of grouping hospitals: hospital referral regions (HRRs), metropolitan statistical areas (MSAs), core-based statistical areas (CBSAs), and community detection algorithms (CDAs). DATA EXTRACTION METHODS:We combined data from the 2014 American Hospital Association Annual Survey, the Census Bureau, the Dartmouth Atlas, and Medicare data on interhospital patient travel patterns. We then evaluated the distinctiveness of each grouping, reliability over time, and generalizability across populations. PRINCIPLE FINDINGS:Hospital groups defined by CDAs were the most distinctive (modularity = 0.86 compared to 0.75 for HRRs and 0.83 for MSAs; 0.72 for CBSA), were reliable to alternative specifications, and had greater generalizability than HRRs, MSAs, or CBSAs. CDAs had lower reliability over time than MSAs or CBSAs (normalized mutual information between 2012 and 2014 CDAs = 0.93). CONCLUSIONS:Community detection algorithm-defined hospital groups offer high validity, reliability to different specifications, and generalizability to many uses when compared to approaches in widespread use today. They may, therefore, offer a better choice for efforts seeking to analyze the behaviors and dynamics of groups of hospitals. Measures of modularity, shared information, inclusivity, and shared behavior can be used to evaluate different approaches to grouping providers.

SUBMITTER: Everson J 

PROVIDER: S-EPMC6736907 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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Comparing methods of grouping hospitals.

Everson Jordan J   Hollingsworth John M JM   Adler-Milstein Julia J  

Health services research 20190613 5


<h4>Objective</h4>To compare the performance of widely used approaches for defining groups of hospitals and a new approach based on network analysis of shared patient volume.<h4>Study setting</h4>Non-federal acute care hospitals in the United States.<h4>Study design</h4>We assessed the measurement properties of four methods of grouping hospitals: hospital referral regions (HRRs), metropolitan statistical areas (MSAs), core-based statistical areas (CBSAs), and community detection algorithms (CDAs  ...[more]

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