Association of Hospital Consolidation with Cancer Outcomes

Hospital mergers have increased significantly since 2010, driven by factors such as healthcare policy changes, reimbursement, economies of scale, and quality improvement goals. However, limited evidence exists about how these mergers affect the quality of care and cancer outcomes. We conducted a dif...

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Main Authors: Justin Graff MD, Mahnoor Ayub BS, MS, Prashanth Prabakaran MD, Brendan Keelan BS, John D. Cramer MD
Format: Article
Language:English
Published: SAGE Publishing 2025-01-01
Series:Inquiry: The Journal of Health Care Organization, Provision, and Financing
Online Access:https://doi.org/10.1177/00469580251314954
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author Justin Graff MD
Mahnoor Ayub BS, MS
Prashanth Prabakaran MD
Brendan Keelan BS
John D. Cramer MD
author_facet Justin Graff MD
Mahnoor Ayub BS, MS
Prashanth Prabakaran MD
Brendan Keelan BS
John D. Cramer MD
author_sort Justin Graff MD
collection DOAJ
description Hospital mergers have increased significantly since 2010, driven by factors such as healthcare policy changes, reimbursement, economies of scale, and quality improvement goals. However, limited evidence exists about how these mergers affect the quality of care and cancer outcomes. We conducted a difference-in-differences analysis to assess the impact of hospital consolidation on cancer outcomes. Using data from the Surveillance, Epidemiology, and End Results (SEER) program, we identified cancer patients diagnosed between 2008 and 2016, then used the Health Cost Institute’s Healthy Marketplace Index to assess hospital consolidation as measured by the Herfindahl–Hirschman Index (HHI). The HHI is a measure of market concentration and competition between firms in a given industry. We found that increases in hospital consolidation were associated with a higher likelihood of early-stage cancer diagnosis compared to control areas (−1.1%, 95% confidence interval (CI) −2.3 to 0.0%), and improved overall survival (hazard ratio 0.94, CI 0.90-0.98). These improvements were restricted to cancers with screening recommendations. Our study suggests that hospital consolidation may have some benefits for cancer patients. However, these benefits may not be evenly distributed across all cancer types. Further research is needed to confirm these findings and to understand the mechanisms by which hospital consolidation affects cancer outcomes.
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spelling doaj-art-da571ec2aeb747f293dfaaf311ed0d442025-01-28T14:03:33ZengSAGE PublishingInquiry: The Journal of Health Care Organization, Provision, and Financing0046-95801945-72432025-01-016210.1177/00469580251314954Association of Hospital Consolidation with Cancer OutcomesJustin Graff MD0Mahnoor Ayub BS, MS1Prashanth Prabakaran MD2Brendan Keelan BS3John D. Cramer MD4Wayne State University School of Medicine, Detroit, MI, USAWayne State University School of Medicine, Detroit, MI, USAWayne State University School of Medicine, Detroit, MI, USAMichigan State University College of Osteopathic Medicine, East Lansing, MI, USAWayne State University School of Medicine, Detroit, MI, USAHospital mergers have increased significantly since 2010, driven by factors such as healthcare policy changes, reimbursement, economies of scale, and quality improvement goals. However, limited evidence exists about how these mergers affect the quality of care and cancer outcomes. We conducted a difference-in-differences analysis to assess the impact of hospital consolidation on cancer outcomes. Using data from the Surveillance, Epidemiology, and End Results (SEER) program, we identified cancer patients diagnosed between 2008 and 2016, then used the Health Cost Institute’s Healthy Marketplace Index to assess hospital consolidation as measured by the Herfindahl–Hirschman Index (HHI). The HHI is a measure of market concentration and competition between firms in a given industry. We found that increases in hospital consolidation were associated with a higher likelihood of early-stage cancer diagnosis compared to control areas (−1.1%, 95% confidence interval (CI) −2.3 to 0.0%), and improved overall survival (hazard ratio 0.94, CI 0.90-0.98). These improvements were restricted to cancers with screening recommendations. Our study suggests that hospital consolidation may have some benefits for cancer patients. However, these benefits may not be evenly distributed across all cancer types. Further research is needed to confirm these findings and to understand the mechanisms by which hospital consolidation affects cancer outcomes.https://doi.org/10.1177/00469580251314954
spellingShingle Justin Graff MD
Mahnoor Ayub BS, MS
Prashanth Prabakaran MD
Brendan Keelan BS
John D. Cramer MD
Association of Hospital Consolidation with Cancer Outcomes
Inquiry: The Journal of Health Care Organization, Provision, and Financing
title Association of Hospital Consolidation with Cancer Outcomes
title_full Association of Hospital Consolidation with Cancer Outcomes
title_fullStr Association of Hospital Consolidation with Cancer Outcomes
title_full_unstemmed Association of Hospital Consolidation with Cancer Outcomes
title_short Association of Hospital Consolidation with Cancer Outcomes
title_sort association of hospital consolidation with cancer outcomes
url https://doi.org/10.1177/00469580251314954
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