Return to sender: Unraveling the role of structural and social network ties in patient sharing networks

Daan Westra, Peter Makai and Ron Kemp

Social Science & Medicine, 2024, vol. 340, issue C

Abstract: Healthcare is increasingly delivered through networks of organizations. Well-structured patient sharing networks are known to have positive associations with the quality of delivered services. However, the drivers of patient sharing relations are rarely studied explicitly. In line with recent developments in network and integration theorizing, we hypothesize that structural and social network ties between organizations are uniquely associated with a higher number of shared patients. We test these hypotheses using a Bayesian zero-dispersed Poisson regression model within the Additive and Multiplicative Effects Framework based on administrative claims data from 732,122 dermatological patients from the Netherlands in 2017. Our results indicate that 2.6% of all dermatological patients are shared and that the amount of shared patients is significantly associated with structural (i.e. emergency contracts) and social (i.e. shared physicians) ties between organizations, confirming our hypotheses. We also find some evidence that patients are shared with more capable organizations. Our findings highlight the role of relational ties in the way health services are delivered. At the same time, they also raise some potential anti-trust concerns.

Keywords: Patient sharing; Physician sharing; Integration; Hospital networks; Network analysis; Inter-organizational relations (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1016/j.socscimed.2023.116351

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