National Healthcare Quality and Disparities Report
Latest available findings on quality of and access to health care
Data
- Data Infographics
- Data Visualizations
- Data Tools
- Data Innovations
- All-Payer Claims Database
- Healthcare Cost and Utilization Project (HCUP)
- Medical Expenditure Panel Survey (MEPS)
- AHRQ Quality Indicator Tools for Data Analytics
- State Snapshots
- United States Health Information Knowledgebase (USHIK)
- Data Sources Available from AHRQ
Search All Research Studies
AHRQ Research Studies Date
Topics
- Consumer Assessment of Healthcare Providers and Systems (CAHPS) (1)
- Electronic Health Records (EHRs) (1)
- Healthcare Costs (1)
- Healthcare Delivery (3)
- Health Information Technology (HIT) (1)
- Health Insurance (1)
- (-) Health Systems (8)
- (-) Hospitals (8)
- Implementation (1)
- Learning Health Systems (1)
- Medicare (2)
- Orthopedics (1)
- Patient Experience (1)
- Payment (2)
- Primary Care (1)
- Provider Performance (1)
- Quality of Care (4)
- Surgery (1)
AHRQ Research Studies
Sign up: AHRQ Research Studies Email updates
Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
1 to 8 of 8 Research Studies DisplayedGraves JA, Nshuti L, Everson J
Breadth and exclusivity of hospital and physician networks in US insurance markets.
The goal of this study was to quantify network breadth and overlap among primary care physician (PCP), cardiology, and general acute care hospital networks for employer-based (large group and small group), individually purchased (marketplace), Medicare Advantage (MA), and Medicaid managed care (MMC) plans. The main outcomes measured were percentage of in-network physicians and/or hospitals within a 60-minute drive from a hypothetical patient in a given zip code (breadth), and the number of physicians and/or hospitals within each network that overlapped with other insurers' networks, expressed as a percentage of the total possible number of shared connections (exclusivity). Networks were categorized by network breadth size and analyzed by insurance type, state, and insurance, physician, and/or hospital market concentration level, as measured by the Hirschman-Herfindahl index. Markets with concentrated primary care and insurance markets had the broadest and least exclusive primary care networks among large-group commercial plans. Markets with the least concentration had the narrowest and most exclusive networks. Rising levels of insurer and market concentration were associated with broader and less exclusive healthcare networks. The authors suggest that this means that patients could switch to a lower-cost, narrow network plan without losing-in-network coverage to their PCP.
AHRQ-funded; HS025976; HS026395.
Citation: Graves JA, Nshuti L, Everson J .
Breadth and exclusivity of hospital and physician networks in US insurance markets.
JAMA Netw Open 2020 Dec;3(12):e2029419. doi: 10.1001/jamanetworkopen.2020.29419..
Keywords: Health Insurance, Learning Health Systems, Health Systems, Primary Care, Hospitals, Healthcare Delivery
Short MN, Ho V
Weighing the effects of vertical integration versus market concentration on hospital quality.
Provider organizations are increasing in complexity, as hospitals acquire physician practices and physician organizations grow in size. At the same time, hospitals are merging with each other to improve bargaining power with insurers. In this study, the investigators analyzed 29 quality measures reported to the Center for Medicare and Medicaid Services' Hospital Compare database for 2008 to 2015 to test whether vertical integration between hospitals and physicians or increases in hospital market concentration influenced patient outcomes.
AHRQ-funded; HS024727.
Citation: Short MN, Ho V .
Weighing the effects of vertical integration versus market concentration on hospital quality.
Med Care Res Rev 2020 Dec;77(6):538-48. doi: 10.1177/1077558719828938.
.
.
Keywords: Consumer Assessment of Healthcare Providers and Systems (CAHPS), Quality of Care, Patient Experience, Hospitals, Medicare, Provider Performance, Health Systems
Machta RM, Reschovsky J, Jones DJ
AHRQ Author: Furukawa MF
Can vertically integrated health systems provide greater value: the case of hospitals under the comprehensive care for joint replacement model?
The authors sought to assess whether system providers perform better than non-system providers under an alternative payment model that incentivizes high-quality, cost-efficient care. Using CMS data linked to AHRQ’s Compendium of US Health Systems, along with secondary sources, they found that when operating under alternative payment model incentives, vertical integration may enable hospitals to lower costs with similar quality scores.
AHRQ-authored; AHRQ-funded; 290201600001C.
Citation: Machta RM, Reschovsky J, Jones DJ .
Can vertically integrated health systems provide greater value: the case of hospitals under the comprehensive care for joint replacement model?
Health Serv Res 2020 Aug;55(4):541-47. doi: 10.1111/1475-6773.13313..
Keywords: Health Systems, Hospitals, Orthopedics, Healthcare Costs, Payment, Quality of Care
Fisher ES, Shortell SM, O'Malley AJ
Financial integration's impact on care delivery and payment reforms: a survey of hospitals and physician practices. Health Aff 2020 Aug;39(8):1302-11. doi: 10.1377/hlthaff.2019.01813.
This study looked at whether financial integration of hospitals and physician practices was associated with greater quality. A total of 739 hospitals and 2,189 physician practices were included in the nationally representative survey. They were stratified by whether they were independent or owned by complex systems, simple systems, or medical groups. Nine scales were used to measure the level of adoption of diverse, quality-focused care delivery and payment reforms. While quality scores favored financially integrated systems for 4 of 9 hospital measures and one of 9 practice measures, none of them favored complex systems. Better quality was generally not associated with greater financial integration.
AHRQ-funded; U19 HS024075.
Citation: Fisher ES, Shortell SM, O'Malley AJ .
Financial integration's impact on care delivery and payment reforms: a survey of hospitals and physician practices. Health Aff 2020 Aug;39(8):1302-11. doi: 10.1377/hlthaff.2019.01813.
Health Aff 2020 Aug;39(8):1302-11. doi: 10.1377/hlthaff.2019.01813..
Keywords: Healthcare Delivery, Payment, Hospitals, Health Systems, Quality of Care
Furukawa MF, Machta RM, Barrett KA
AHRQ Author: Furukawa MF
Landscape of health systems in the United States.
This paper describes AHRQ’s development of the Compendium of U.S. Health Systems to help identify and describe health systems. This data resource supports research on comparative health system performance. The authors describe the methods used to create the compendium and create a picture of vertical integration. They identified 626 health systems in 2016, which accounted for 70% of nonfederal general acute care hospitals. The systems varied by key structural attributes, including size, ownership, and geographic prevalence.
AHRQ-authored; AHRQ-funded; 290201600001C.
Citation: Furukawa MF, Machta RM, Barrett KA .
Landscape of health systems in the United States.
Med Care Res Rev 2020 Aug;77(4):357-66. doi: 10.1177/1077558718823130..
Keywords: Health Systems, Healthcare Delivery, Hospitals
Sheetz KH, Chhabra K, Nathan H
The quality of surgical care at hospitals associated with America's highest-rated medical centers.
The objective of this study was to assess whether the quality of surgical care changes as hospitals form networks with established, high-quality medical centers. The investigators concluded that network formation was not associated with a significant improvement in quality or reduction in Medicare expenditures across all procedures studied for hospitals joining the networks of America’s highest rated medical centers.
AHRQ-funded; HS023597.
Citation: Sheetz KH, Chhabra K, Nathan H .
The quality of surgical care at hospitals associated with America's highest-rated medical centers.
Ann Surg 2020 May;271(5):862-67. doi: 10.1097/sla.0000000000003195..
Keywords: Surgery, Hospitals, Quality of Care, Medicare, Health Systems
Niedzwiecki MJ, Machta RM, Reschovsky JD
Characteristics of academic-affiliated health systems.
Changing market forces increasingly are leading academic medical centers (AMCs) to form or join health systems. But it is unclear how this shift is affecting the tripartite academic mission of education, research, and high-quality patient care. To explore this topic, the authors identified and characterized the types of health systems that owned or managed AMCs in the United States in 2016.
AHRQ-authored; AHRQ-funded; 290201600001C.
Citation: Niedzwiecki MJ, Machta RM, Reschovsky JD .
Characteristics of academic-affiliated health systems.
AHRQ-authored; AHRQ-funded; 290201600001C..
Keywords: Health Systems, Hospitals
Rangachari P
Using social knowledge networking technology to enable meaningful use of electronic health record technology in hospitals and health systems.
In this paper, Rangachari (1) reviewed the theoretical literatures on technology use & implementation, and identified a framework for understanding & overcoming unintended adverse consequences of implementing Electronic Health Records; (2) outlined a broad project proposal to test the applicability of the framework in enabling "meaningful use" of Electronic Health Records in a healthcare context; and (3) identified strategies for successful implementation of Electronic Health Records in hospitals & health systems, based on the literature review and application.
AHRQ-funded; HS024335.
Citation: Rangachari P .
Using social knowledge networking technology to enable meaningful use of electronic health record technology in hospitals and health systems.
J Hosp Adm 2014 Dec;3(6):66-78. doi: 10.5430/jha.v3n6p66.
.
.
Keywords: Health Systems, Electronic Health Records (EHRs), Health Information Technology (HIT), Hospitals, Implementation