New healthcare payment models: risk scores aren’t enough to guide resource allocation

Abstract Around the world, aging populations compel healthcare delivery systems to improve how they allocate increasingly scarce resources. In parallel, economic pressures motivate healthcare payors and policy makers to adopt global budgeting and accountable payment models based on actuarial risk. W...

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Main Authors: Christopher Crowley, Bradley Harner, Amy R. Stuck, Tyler Kent
Format: Article
Language:English
Published: Nature Portfolio 2025-05-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-025-04285-w
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author Christopher Crowley
Bradley Harner
Amy R. Stuck
Tyler Kent
author_facet Christopher Crowley
Bradley Harner
Amy R. Stuck
Tyler Kent
author_sort Christopher Crowley
collection DOAJ
description Abstract Around the world, aging populations compel healthcare delivery systems to improve how they allocate increasingly scarce resources. In parallel, economic pressures motivate healthcare payors and policy makers to adopt global budgeting and accountable payment models based on actuarial risk. We investigated whether these risk-based approaches could apply to healthcare resource allocation. Because a significant portion of healthcare resources for older adults is currently associated with potentially avoidable hospital admissions, we focused our investigation on allocating care coordination resources targeted toward those most likely to be admitted. Using a computational risk-based analysis of claims data, we found the 20% highest expected hospital utilization segment had an average hospitalization rate of over 68% per year, compared to 27% for the overall study population. However, only half of all hospitalizations in the study population were accounted for in the top 20% risk segment. Additionally, 63% of beneficiaries in the top 20% risk segment experienced zero hospitalizations. Our results indicate that risk-based resource allocation may fail to target some high hospital utilizers while allocating resources to many who are never hospitalized. These results further indicate that risk-based expectation of hospital utilization may be insufficient as a basis for effective allocation of care coordination resources.
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spelling doaj-art-e399edbaaf084bf8b0fdcafbce0de19b2025-08-20T02:03:31ZengNature PortfolioScientific Reports2045-23222025-05-011511910.1038/s41598-025-04285-wNew healthcare payment models: risk scores aren’t enough to guide resource allocationChristopher Crowley0Bradley Harner1Amy R. Stuck2Tyler Kent3West Health InstituteWest Health InstituteWest Health InstituteWest Health InstituteAbstract Around the world, aging populations compel healthcare delivery systems to improve how they allocate increasingly scarce resources. In parallel, economic pressures motivate healthcare payors and policy makers to adopt global budgeting and accountable payment models based on actuarial risk. We investigated whether these risk-based approaches could apply to healthcare resource allocation. Because a significant portion of healthcare resources for older adults is currently associated with potentially avoidable hospital admissions, we focused our investigation on allocating care coordination resources targeted toward those most likely to be admitted. Using a computational risk-based analysis of claims data, we found the 20% highest expected hospital utilization segment had an average hospitalization rate of over 68% per year, compared to 27% for the overall study population. However, only half of all hospitalizations in the study population were accounted for in the top 20% risk segment. Additionally, 63% of beneficiaries in the top 20% risk segment experienced zero hospitalizations. Our results indicate that risk-based resource allocation may fail to target some high hospital utilizers while allocating resources to many who are never hospitalized. These results further indicate that risk-based expectation of hospital utilization may be insufficient as a basis for effective allocation of care coordination resources.https://doi.org/10.1038/s41598-025-04285-wHealthcare economicsResource allocationOlder adultsHospital utilizationRisk
spellingShingle Christopher Crowley
Bradley Harner
Amy R. Stuck
Tyler Kent
New healthcare payment models: risk scores aren’t enough to guide resource allocation
Scientific Reports
Healthcare economics
Resource allocation
Older adults
Hospital utilization
Risk
title New healthcare payment models: risk scores aren’t enough to guide resource allocation
title_full New healthcare payment models: risk scores aren’t enough to guide resource allocation
title_fullStr New healthcare payment models: risk scores aren’t enough to guide resource allocation
title_full_unstemmed New healthcare payment models: risk scores aren’t enough to guide resource allocation
title_short New healthcare payment models: risk scores aren’t enough to guide resource allocation
title_sort new healthcare payment models risk scores aren t enough to guide resource allocation
topic Healthcare economics
Resource allocation
Older adults
Hospital utilization
Risk
url https://doi.org/10.1038/s41598-025-04285-w
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