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The Johns Hopkins ACG® System Bibliography provides links to more than 900 papers and reports from across the globe detailing various studies utilizing the ACG System in a variety of locations, populations, and innovative applications.
Please use the below search box to find articles on specific topics or keywords. You can also use the filters below to refine further.
Health Serv Res 37:1345-1364. Centre for Health Services and Policy Research, University of British Columbia, Vancouver, BC, Canada OBJECTIVES: To assess the ability of an […]
Health Care Financ Rev 24:43-61. Rollins School of Public Health, Emory University, Atlanta, GA, USA Actuarial split-sample method were used to assess predictive accuracy of […]
BMJ 325:370-371. Health Services Research and Development Center, Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA […]
Greifswald, Germany: Ernst Moritz Arndt University of Greifswald. Ernst Moritz Arndt University of Greifswald, Greifswald, Germany OBJECTIVES: To contribute to the policy discussion of equity […]
Med Care 40:IV-26-IV-35. Health Services and Economics Branch, Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD, USA Comorbidity, […]
Med Care 40:717-724. Department of Family and Community Medicine, University of California School of Medicine, Davis, CA, USA BACKGROUND: Previous research shows patient socioeconomic status […]
Int J Health Plann Manage 17:269-282. Centre for Development of Health Services, Stockholm County Council, Sweden Patients from one municipality in Sweden utilizing primary health […]
In: Wrightson CW, eds. Financial strategy for managed care organizations: rate setting, risk adjustment, and competitive advantage. Ann Arbor, MI, USA: Health Administration Press:165-225. Health […]
Minneapolis, MN, USA: Milliman USA and Park Nicollet Institute Health Research Center. Milliman USA and Park Nicollet Institute Health Research Center, Minneapolis, MN, USA The […]
Healthc Manage Forum 15:11-16. Department of Healthcare and Epidemiology, University of British Columbia, Vancouver, BC, Canada This article reviews the Adjusted Clinical Group Case-Mix System […]
Health Serv Outcomes Res Methodology 3:95-106. Houston Center for Quality of Care and Utilization Studies, Veterans Affairs Medical Center, Houston, TX, USA; Baylor College of […]
Am J Manag Care 8:413-422. HealthPartners Research Foundation, Minneapolis, MN, USA OBJECTIVE: To learn whether the healthcare costs for patients of various care delivery systems […]
J Neurol Neurosurg Psychiatry 72:615-620. Department of Psychiatry, University of Washington, Seattle, WA, USA OBJECTIVE: To determine whether psychiatric illness is a risk factor for […]
Health Serv Manage Res 15:116-125. Departamento de Estumatologia, Facultad de Odontologia, Universidad de Granada, Campus Univeristario de Cartuja, Granada, Spain This study analyses how both […]
J Health Econ 21:515-530. Center for Health Quality, Outcomes and Economic Research, Boston University School of Public Health, Bedford, MA, USA Conventional risk adjustment, which […]
Med Care 40:303-314. Institute for Health Care Research and Policy, Georgetown Public Policy Institute, Georgetown University, Washington, DC, USA OBJECTIVE: To compare the process of […]
Health Serv Outcomes Res Methodology 3:57-73. Academic Technology Center, Bentley College, Waltham, MA, USA; Center for Health Quality, Outcomes and Economic Research, Veterans Administration Medical […]
Health Econ 11:165-174. Department of Health Services, Boston University School of Public Health, Boston, MA, USA To mitigate selection triggered by capitation payments, risk-adjustment models […]
Barcelona, Spain: University of Barcelona (doctoral dissertation). Published in Spanish. University of Barcelona, Barcelona, Spain El objetivo general de este trabajo es medir el impacto […]
Health Aff 21:89-102. Health Systems Management Faculty, School of Public Affairs, University of Baltimore, Baltimore, MD, USA. This paper presents the first empirical analysis of […]
J Formos Med Assoc 101:52-59. Graduate Institute of Health Care Organization Administration, College of Public Health, National Taiwan University, Taipei, Taiwan BACKGROUND AND PURPOSE: Some […]
Vancouver, BC, Canada: University of British Columbia (masters thesis). University of British Columbia, Vancouver, BC, Canada The BC Ministry of Health has developed a Population […]
Health Care Financ Rev 23:53-68. Center for Health Program Development and Management, University of Maryland Baltimore County, Baltimore, MD, USA Managed care organizations (MCOs) may […]
Cell Mol Biol 47:1209-1215. Hawaii Medical Service Association, Care Management, Honolulu, HI, USA Despite the fact that Asian Americans and Pacific Islanders are the fastest […]
Med Care 39:1170-1181. Department of Community and Family Medicine, Duke University Medical Center, Durham, NC, USA BACKGROUND: Utilization risk assessment is potentially useful for allocation […]
Pediatrics 108:851-855. University of Virginia Children’s Medical Center, Charlottesville, Virginia, USA OBJECTIVE: Hospital care for children with viral lower respiratory illness (VLRI) is highly variable, […]
Pediatrics 108:906-912. Center for Child and Adolescent Health Policy, MassGeneral Hospital for Children, Boston, MA, USA OBJECTIVE: To estimate generalist, pediatric subspecialist, and any subspecialist […]
BMJ 323:607-610. School of Public Policy, University College London, London, UK Risk adjustment could help to improve decisions about budgets as well as help measure […]
BMJ 323:604-607. School of Public Policy, University College London, London, UK No abstract PMID: 11557709 PMCID: PMC55577
Inquiry 38:299-309. Department of Economics, Boston University, Boston, MA, USA This paper explores explanations for why few private employers have adopted formal risk adjustment. The […]
Am J Manag Care 7:389-398. MEDTAP International, Bethesda, MD, USA OBJECTIVE: To examine the relation between blood pressure (BP) control and utilization and cost of […]
J Fam Pract 50:676-680. University of Washington, Department of Family Medicine, Seattle, WA, USA OBJECTIVE: Our goal was to compare the quality of diabetic care […]
Health Serv Res 36:793-811. UCLA Department of Medicine, Los Angeles, CA, USA OBJECTIVE: To compare the performance of various risk adjustment models in behavioral health […]
Ambul Pediatr 1:217-224. Department of Health Policy and Management, School of Hygiene and Public Health, Johns Hopkins University, Baltimore, MD, USA OBJECTIVE: Several capitation payment […]
Winnipeg, MB, Canada: Manitoba Centre for Health Policy. Manitoba Centre for Health Policy, Winnipeg, MB, Canada Canadian policy makers are considering a variety of new […]
British Columbia Med J 43:328-333. Ministry of Health and Ministry Responsible for Seniors, Province of British Columbia; UBC Centre for Health Services & Policy Research, […]
Med Care 39:692-704. Center for Health Quality, Outcomes and Economic Research, Bedford VAMC, MA, USA BACKGROUND: Diagnosis-based case-mix measures are increasingly used for provider profiling, […]
Minneapolis, MN, USA: Park Nicollet Institute, Minnesota Department of Health, Minnesota Department of Human Services. Park Nicollet Institute and Minnesota Department of Health, Minneapolis, MN, […]
Gainesville, FL, USA: Institute for Child Health Policy, University of Florida. Institute for Child Health Policy, University of Florida, Gainesville, FL, USA Increasing numbers of […]
Bethesda, MD, USA: Project Hope Center for Health Affairs. Project Hope, Bethesda, MD, USA This report contains findings from a project conducted by the Project […]
Hamilton, NJ, USA: Center for Health Care Strategies. Center for Health Care Strategies, Hamilton, NJ, USA In this report we describe six health status grouping […]
Working paper: Informed Purchasing Series. Hamilton, NJ, USA: Center for Health Care Strategies. Center for Health Programs Development and Management, University of Maryland, Baltimore County, […]
Washington, DC, USA: NRH Center for Health and Disability Research. NRH Center for Health & Disability Research, Washington, DC, USA As a group, people with […]
Gainesville, FL, USA: Institute for Child Health Policy, University of Florida. Institute for Child Health Policy, University of Florida, Gainesville, FL, USA As part of […]
Med Care 39:551-561. MDS Associates, Wheaton, MD, USA BACKGROUND: Federally Qualified Health Centers (FQHCs) serve as regular sources of preventive and primary care for low-income […]
J Fam Pract 50:427-432. Health Services Research and Development Center, Department of Health Policy and Management, Johns Hopkins School of Hygiene and Public Health, Baltimore, […]
JAMA 285:2223-2231. Department of Health Policy and Management, Johns Hopkins School of Hygiene and Public Health, Baltimore, MD, USA CONTEXT: Most health maintenance organizations offer […]
JAMA 285:60-66. Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA CONTEXT: A shortage of data exists on medical care use by persons with […]
Montreal, QC, Canada: Montreal Health and Social Services Agency. Montreal Health and Social Services Agency, Montreal, QC, Canada No abstract
Med Care 39:86-99. Centre for Health Services and Policy Research, University of British Columbia, Vancouver, BC, Canada BACKGROUND: While the adjusted clinical group (ACG) system […]
J Urban Health 77:645-662. Mathematica Policy Research in Washington, DC, USA Studies have highlighted the tensions that can arise between Medicaid managed care organizations and […]
Value Health 3 Suppl 1:29-38. MEDSTAT Group, Inc., Ann Arbor, MI, USA OBJECTIVES: To estimate relationships between medical care expenditures in 1996 and adherence to […]
Arch Fam Med 9:1111-1118. Department of Family Practice, Medical College of Virginia, Virginia Commonwealth University, Fairfax, VA, USA BACKGROUND: New rulings nationwide require health services […]
JAMA 284:2077-2083. Department of Health Policy and Management, Johns Hopkins School of Public Health, Baltimore, MD, USA CONTEXT: The US primary care safety net is […]
Hamilton, NJ, USA: Center for Health Care Strategies. Center for Health Care Strategies, Hamilton, NJ, USA A complex question has persisted in our minds since […]
Med Care 38:836-846. Department of Family Medicine, University of Rochester, New York, NY, USA BACKGROUND: Primary care physicians (PCPs) exhibit widely varying referral rates, resulting […]
Academia Economic Papers 28:231-261. Published in Chinese. PURPOSE: To explore risk factors that can explain individual medical expenditure. SAMPLE: Subjects included in “1996 NHI Satisfaction […]
Final report to Health Care Financing Administration. Baltimore, MD, USA: Johns Hopkins University. Johns Hopkins University, Baltimore, MD, USA The Balanced Budget Act (BBA) of […]
Cuadernos de Gestión 6:19-24. Published in Spanish. Fundació Jordi Gol i Gurina, Barcelona, Spain No abstract
J Healthc Inf Manag 14:31-57. Vanderbilt University Medical Center, Nashville, TN, USA With the Balanced Budget Act of 1997 mandating that the Health Care Financing […]
Reporting Framework Subcommittee of the Steering Committee of the Minnesota ACG Users Group. Revised by Chad Abrams, Terry Bernhardt, Steven Foldes, Jason Wiley, May 17, […]
Healthplan 41:74-79. Medstat Group, Washington, DC, USA Managed care plans are a type of health insurance. They have contracts with health care providers and medical facilities […]
Gac Sanit 14:195-202. Published in Spanish. Centro de Salud de Astrabudúa (Bizkaia), Osakidetza-Servicio Vasco de Salud, Bilbao, Spain OBJECTIVES: To analyze the relationship between pediatric […]
J Emerg Med 18:289-297. Department of Family Medicine, University of Washington, Seattle, WA, USA This study uses Medicare data to compare emergency department (ED) use […]
J Fam Pract 49:305-310. University of Rochester School of Medicine, New York, NY, USA BACKGROUND: Underrecognition and undertreatment of mental health disorders in primary care […]
J Gen Intern Med 15:163-168. Department of Family Medicine, University of Rochester, Rochester, NY, USA OBJECTIVE: To determine which physician practice and psychological factors contribute […]
Health Care Manag Sci 3:159-169. Division of General Internal Medicine and Health Services Research, UCLA Department of Medicine, Los Angeles, CA, USA This study used […]
Data Strateg Benchmarks 4:21-26. The ABCs of ACGs. Adjusted clinical groups, or ACGs, a risk adjustment system developed by Baltimore-based Johns Hopkins University, are being […]
Health Care Manag Sci 3:101-109. Department of Health Services, University of Washington, Seattle, WA, USA Risk adjustment may be a sensible strategy to reduce selection […]
Am JPublic Health 90:97-102. Department of Family Medicine, University of Washington School of Medicine, Seattle, WA, USA OBJECTIVES: This study sought to determine the rate […]
Sacramento, CA, USA: Public Policy Institute of California. Rollins School of Public Health, Emory University, Atlanta, GA; School of Public Health, University of Alabama at […]
J Fam Pract 49:12-17. Department of Family Medicine, University of Rochester, New York, NY, USA No abstract Comment in: Interspeciality differences in medical resource utilization. […]
Medical College of Virginia Associated Physicians, Mathematica Policy Research. Report prepared for the Health Care Financing Review (HCFA Contract No. 17C-90366/3/01). Washington, DC, USA: Mathematica […]
Rev Neurol 29:667-669. Published in Spanish. Fundació Jordi Gol i Gurina, Barcelona, España INTRODUCTION: Ambulatory care groups (ACG) are a system of classification for patients […]
Med Care 37:874-883. Center for Health Studies, Group Health Cooperative of Puget Sound, Seattle, WA, USA BACKGROUND: Although risk assessment models for specific adult populations […]
Reporting Framework Subcommittee of the Steering Committee of the Minnesota ACG Users Group. St. Paul, MN, USA: Minnesota ACG Users Group. Minnesota ACG Users Group, […]
Hamilton, NJ, USA: Center for Health Care Strategies. Center for Health Care Strategies, Hamilton, NJ, USA Washington state began enrolling Medicaid SSI (low income, disabled) […]
Barcelona, Spain: Fundacio Salut, Empresa i Economia. Published in Spanish. Fundacio Salut, Empresa i Economia, Barcelona, Spain No abstract
New York, NY, USA: Commonwealth Fund. Division of Health Policy Research and Education, Harvard University, Boston, MA, USA Almost all observers agree in principle that […]
Winnipeg, MB, Canada: Manitoba Centre for Health Policy. Manitoba Centre for Health Policy, Winnipeg, MB, Canada This study examined the performance of the Johns Hopkins […]
Health Aff 18:217-227. Urban Institute, Washington, DC, USA This paper reports on a new survey of state Medicaid managed care payment rates. We collected rate […]
J Ambul Care Manage 22:41-52. 3M Health Information Systems, Wallingford, CT, USA The Episode Classification System is intended to perform two tasks. First, it will […]
J Fam Pract 48:264-271. Institute for Health Policy, Massachusetts General Hospital/Partners HealthCare System, Harvard Medical School, Boston, MA, USA BACKGROUND: The objective of our study […]
Health Serv Res 34:323-329. University of Rochester, Rochester, NY, USA OBJECTIVE: To examine primary care physician referral rate variations, including their extent and their stability […]
Med Care 37:238-248. Astrabudúa Health Center, Osakidetza/Basque Health Service, Bizkaia, Spain BACKGROUND: Ambulatory Care Groups (ACGs), a US case mix system that uses the patient […]
Arch Fam Med 8:149-155. Johns Hopkins Center for Hospital Finance and Management, Baltimore, MD, USA. In today’s rapidly changing medical marketplace, managed care plans are […]
Eur J Public Health 9:27-35. Unitat d’Investigació Centre del Institut Catalá de la Salut, Barcelona, Spain BACKGROUND: Patient classification systems based on the defining of […]
Annu Rev Public Health 20:125-144. Department of Biostatistics, University of Washington, Seattle, WA, USA Important questions about health care are often addressed by studying health […]
N Engl J Med 339:1952-1956. Risk adjustment refers to the adjustment of payments to health plans (or to doctors) to reflect more accurately the actual […]
Int J Qual Health Care 10:531-538. Center for Health Research, Kaiser Permanente, Northwest Division, Portland, OR, USA OBJECTIVES: To highlight the types and sources of […]
Eff Clin Pract 1:66-72. Center for Health Research, Kaiser Permanente, Northwest Division, Portland, OR, USA. Health care information technology is changing rapidly and dramatically. A […]
Am J Public Health 88:1539-1541. Department of Family Medicine, Medical University of South Carolina, Charleston, SC, USA OBJECTIVES: This study examined the effect of continuity […]
J Ambul Care Manage 21:29-52. School of Public Health, Johns Hopkins University, Baltimore, MD, USA This article describes the risk-adjusted payment methodology employed by the […]
Arch Fam Med 7:352-357. Department of Family and Community Medicine, Christiana Care Health System, Wilmington, DE, USA OBJECTIVES: To examine the association between provider continuity […]
Ambulatory Care Groups. Aten Primaria 22:128. Published in Spanish. Osakidetza Servicio Vasco de Salud, Bizkaia, Spain No abstract Comment on:[A retrospective evaluation of the behaviour […]
Final report. Princeton, NJ, USA: Robert Wood Johnson Foundation.
Minneapolis Star Tribune, January 3:A13. No abstract
Chapter 4. In: Gavin NI, Farrelly MC, ed. Evaluation of Medicaid managed care programs with 1915(b) waivers. Presented to HCFA Office of R&D. Rockville, MD, […]
Chapter 5. In: Gavin NI, Farrelly MC, ed. Evaluation of Medicaid managed care programs with 1915(b) waivers. Presented to HCFA Office of R&D. Rockville, MD, […]
A report to legislature. St. Paul, MN, USA: Minnesota Department of Health. Health Economics Program, Minnesota Department of Health, St. Paul, MN, USA The 1995 […]
