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Using the ACG case-mix adjustment system to evaluate veteran’s morbidity burdens and medical utilizations in Taiwan

J Healthc Manag 8:67-84. Published in Chinese. Department of Medical Affairs and Planning, Taipei Veterans General Hospital, Taipei City, Taiwan, ROC OBJECTIVES: Veterans have been […]

Performance of risk adjusted capitated systems in allocating a global budget

Baltimore, MD, USA: Johns Hopkins University (doctoral dissertation). Johns Hopkins University, Baltimore, MD, USA Rapidly rising health care costs in the United States have led […]

The Adjusted Clinical Groups (ACGs) system in Osakidetza

Final report (1/05/2003 – 30/04/2003). Vitoria-Gasteiz, Spain: Osakidetza Servicio vasco de salud. Published in Spanish. Osakidetza Servicio vasco de salud, Vitoria-Gasteiz, Spain No abstract

How are Manitoba’s children doing?

Winnipeg, MB, Canada: Manitoba Centre for Health Policy. Manitoba Centre for Health Policy, Winnipeg, MB, Canada The health and development of Manitoba’s children were examined […]

Using selected diagnoses to improve the Chilean capitation formula

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 […]

Home health services in British Columbia: a portrait of users and trends over time

Home health services in British Columbia: a portrait of users and trends over time. Vancouver, BC, Canada: University of British Columbia. University of British Columbia, […]

The effect of a coordinated care program on uninsured, chronically ill patients

Richmond, VA, USA: Virginia Commonwealth University (doctoral dissertation). Virginia Commonwealth University, Richmond, VA, USA This study explored how being enrolled in a program that both […]

Equity in the use and financing of medicines in British Columbia before and after the move to income-based pharmacare

Vancouver, BC, Canada: University of British Columbia (doctoral dissertation). University of British Columbia, Vancouver, BC, Canada BACKGROUND: In May 2003, the B.C. government introduced an […]

Utilizacion de servicios de salud en atencion primaria del area 11 de Madrid y nivel psicobioquimico de estres y de salud bucodental en su poblacion immigrante y autoctona

Madrid, Spain: Universidad Complutense de Madrid (masters thesis). Published in Spanish. Universidad Computense de Madrid, Madrid, Spain La naturaleza trashumante de la Humanidad le es […]

Developing decision trees to classify patients suited for similar interventions by combining clinical judgments with Leeds Risk Stratification Tool

London, UK: London School of Economics and Political Science. London School of Economics and Political Science, London, UK The objectives of the project are to […]

What is most important: social factors, health selection, and adolescent educational achievement

Soc Indic Res 110:385-414. Department of Community Health Sciences, Faculty of Medicine, Manitoba Centre for Health Policy, University of Manitoba, Winnipeg, MB, Canada This paper […]

Case Finding & Population Profiling – Separate Disciplines or Both Sides of the Same Coin?

This award-winning document presented at the 2015 PCSI conference highlights work undertaken with Slough Clinical Commissioning Group in the UK. The work has challenged some […]

Leicester City CCG Case Study 2

 Use of ACG® System output to support practices in participating in a medicines management scheme – STOPP-START

Care Management Program Case Study-Payer

Clalit Health (an integrated delivery system in Israel) used the ACG System to identify high-risk patients for enrollment in a comprehensive complex care management program […]

Case-Mix Information Uses and Health Services Sustainability

Iasist Casemix Information Uses and Health Services Sustainability: A Few Examples From Current Spanish Downturn Mercè Casas Carles Illa

Options for Concurrent Risk Assessment

DST Health Solutions Options for Concurrent Risk Assessment Amy Salls

Monday(C2)-Steep Increase of Registered Diagnosis Due to New Primary Care Funding Model-Martin Fredriksson

Steep Increase of Registered Diagnosis Due to New Primary Care Funding Model —Martin Fredriksson Region Västra Götaland Medical Advisor at Healtcare Department M.D. Ph.D.

Wednesday(P4)-Population Health Emerging Risk-Medscheme

Population Health Emerging Risk-Medscheme

PREDICTING HEALTHCARE COSTS IN VENETO REGION WITH ACG SYSTEM: VALIDATION AND COMPARISON OF DIAGNOSIS-BASED AND DRUG-BASED MORBIDITY GROUPS IN A NORTHERN ITALIAN POPULATION 

F. Avossa, 1, M.C. Corti, 2 , E. Schievano1, C. Abrams, 3 , N. Alba,  4 , S. Elvini, 5 , P. Gallina,  5, C. […]

Cost Risk Scores: Amy Salls, DST Health Solutions

ACG System The Johns Hopkins ACG® System Cost Risk Models Amy Salls

The ACG System and Public Health

Joshua Sharfstein, MD, Associate Dean of the Office of Public Health Practice & Training, Johns Hopkins Bloomberg School of Public Health and former Secretary of […]

Provider Profiling and Engagement Case Study – Payer

Johns Hopkins HealthCare (JHHC), the managed care arm of Johns Hopkins, created Provider Profile reports leveraging outputs from the Johns Hopkins ACG System to build a comprehensive Provider Engagement program.

Apples and Oranges: Four Definitions of Multiple Chronic Conditions and their Relationship to 30-Day Hospital Readmission

OBJECTIVES: To determine the extent of agreement between four commonly used definitions of multiple chronic conditions (MCCs) and compare each definition’s ability to predict 30-day […]

Are we making a difference in primary care for adults with intellectual and developmental disabilities?

Abstract Objectives. To examine the impact of the dissemination of guidelines to physicians and of a population-level health communication intervention on the percentage of adults […]

Supplement to “Equilibria in Health Exchanges: Adverse Selection versus Reclassification Risk”

This online appendix has three sections.  The first presents details of the choice model estimation algorithm, as well as additional estimates from our primary specification […]

Repeat Emergency Department Visits for Individuals With Intellectual and Developmental Disabilities and Psychiatric Disorders

Abstract Although individuals with intellectual and developmental disabilities (IDD) and psychiatric concerns are more likely than others to visit hospital emergency departments (EDs), the frequency […]

Integrating Social and Behavioral Determinants of Health into Population Health Analytics: A Conceptual Framework and Suggested Road Map

Abstract There is growing recognition that social and behavioral risk factors impact population health outcomes. Interventions that target these risk factors can improve health outcomes. […]

Frailty, Implantable Cardioverter Defibrillators, and Mortality: a Systematic Review

Abstract   Background Evidence for the benefit of implantable cardioverter defibrillators (ICD) in preventing sudden cardiac death (SCD) in older adults is mixed; age alone […]

Impact of care provider network characteristics on patient outcomes: Usage of social network analysis and a multi-scale community detection

Abstract Objective We assess healthcare provider collaboration and the impact on patient outcomes using social network analysis, a multi-scale community detection algorithm, and generalized estimating […]

MS risk in immigrants in the McDonald era: A population-based study in Ontario, Canada

Abstract OBJECTIVE To determine risk factors for multiple sclerosis (MS) in immigrants and to compare MS risk in immigrants and long-term residents in Ontario, Canada. […]

Preoperative frailty predicts adverse short‐term postoperative outcomes in patients treated with radical nephroureterectomy

Abstract Background To investigate the effect of frailty on short‐term postoperative outcomes and total hospital charges (THCs) in patients with non‐metastatic upper urinary tract carcinoma, […]

Who is discharged to intermediate care facilities? An Italian study in the population of Udine

ABSTRACT The objective of this study was to assess complexity of patients discharged from hospital to intermediate care facility in an Italian setting. Multiple anonymous […]

Alive and at home: Five-year outcomes in older adults following emergency general surgery

Abstract BACKGROUND While the short-term risks of emergency general surgery (EGS) admission among older adults have been studied, little is known about long-term functional outcomes […]

Shorter Diagnosis-to-Treatment Interval in Diffuse Large B-Cell Lymphoma is Associated With Inferior Overall Survival in a Large, Population-Based Registry

Abstract Background Because of prolonged screening requirements, patient and time-dependent selection have been proposed as potential biases in clinical trials. The screening process may exclude […]

Association of Preexisting Disability With Severe Maternal Morbidity or Mortality in Ontario, Canada

Abstract Objective To determine the risk of severe maternal morbidity or mortality among women with a physical, sensory, or intellectual/developmental disability compared with women without […]

Integrating E-Prescribing and Pharmacy Claims Data for Predictive Modeling: Comparing Costs and Utilization of Health Plan Members Who Fill Their Initial Medications with Those Who Do Not

Abstract BACKGROUND Nonfilling of prescribed medications is a worldwide problem of serious concern. Studies of health care costs and utilization associated with medication nonadherence frequently […]

Delay of Pregnancy Among Physicians vs Nonphysicians

Abstract Importance Women physicians may delay childbearing and experience childlessness more often than nonphysicians, but existing knowledge is based largely on self-reported survey data. Objective […]

How different combinations of comorbidities affect healthcare use by elderly patients with obstructive lung disease

Abstract Objective Previous research had shown the number of comorbidities is a major factor influencing the burden of care for elderly patients with obstructive lung […]

Comparison of 4-Year Health Care Expenditures Associated With Roux-en-Y Gastric Bypass vs Sleeve Gastrectomy

Abstract Objective To compare 4-year health care expenditures after RYGB vs sleeve gastrectomy, identify factors independently associated with 4-year health care expenditures, and compare the […]

No Difference in Outcomes Between Short and Longer-Stay Total Joint Arthroplasty with a Discharge Home

Abstract Background: Outcomes following total hip arthroplasty (THA) and total knee arthroplasty (TKA) with a short length of hospital stay have been reported; however, most […]

Remote, proactive, telephone based management of toxicity in outpatients during adjuvant or neoadjuvant chemotherapy for early stage breast cancer: pragmatic, cluster randomised trial

Abstract Objective To evaluate the effectiveness of remote proactive management of toxicities during chemotherapy for early stage breast cancer. Design Pragmatic, cluster randomised trial. Setting […]

Case Study: The Distilling of a Biased Algorithmic Decision System through a Business Lens

Abstract Technological advances embedded within algorithmic decision systems are being deployed every day. Some of these investments are unquestionably worthwhile, while some others prioritize commercialization […]

The Effect of Depression on Paid Sick Leave due to Metabolic and Cardiovascular Disease in low-wage workers. (Depression and Sick Leave)

Abstract Background Colombia’s health system allows workers to claim paid sick leave due to health conditions, some of this conditions are related to metabolic and […]

Changing patterns of multimorbidity among patients with ambiguous diagnoses: The case of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome

Abstract Introduction Increased attention has been given to multimorbidity. This phenomenon often has been explored through associations between diseases based on the frequency of combinations […]

Readmissions Infographic

Preventing avoidable hospital readmissions is considered by many to be the most important opportunity for reducing waste in health care.  The Johns Hopkins ACG® System can […]

Defining and Assessing Geriatric Risk Factors and Associated Health Care Utilization Among Older Adults Using Claims and Electronic Health Records

Abstract Background: Using electronic health records (EHRs), in addition to claims, to systematically identify patients with factors associated with adverse outcomes (geriatric risk) among older […]

Supporting Clinical Activities

The ACG System UK Team hosts a series of webinars aimed at providing an overview on a number of topics related to risk stratification, population […]

Predictive Modelling in Action

An introduction to the principles of predictive modeling in health care and examples of how predictive models are being used in the NHS in England. Learn more.

Do physicians who diagnose more mental health disorders generate lower health care costs?

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 […]

A cross-sectional, population-based study measuring comorbidity among people living with HIV in Ontario

BMC Public Health 14:161. Primary Health Care Research Centre, Bruyère Research Institute, Ottawa, ON, Canada BACKGROUND: As people diagnosed with HIV and receiving combination antiretroviral […]

Health information exchange and the frequency of repeat medical imaging

Am J Manag Care 20:eSP16-24. Weill Cornell Medical College, New York, NY, USA OBJECTIVES: Medical imaging, which is expensive, is frequently repeated for the same […]

Missed strokes using computed tomography imaging in patients with vertigo: population-based cohort study

Stroke 46:108-113. University of Toronto, Toronto, ON, Canada; University Health Network, Toronto, ON, Canada; Institute for Clinical Evaluative Sciences, Toronto, ON, Canada BACKGROUND AND PURPOSE: […]

The effect of pelvic fractures on future stress incontinence and pelvic organ prolapse surgery

Int Urogynecol J Western University, London, ON, Canad INTRODUCTION AND HYPOTHESIS: Pelvic fractures in women significantly disrupt the pelvic floor, which may cause stress urinary […]

Association between metformin use and mortality after cervical cancer in older women with diabetes

Cancer Epidemiol Biomarkers Prev 25:507-512. University Health Network, Toronto, ON, Canada; University of Toronto, Toronto, ON, Canada; Women’s College Hospital, Toronto, ON, Canada; Institute of […]

Effect of specialized diagnostic assessment units on the time to diagnosis in screen-detected breast cancer patients

Br J Cancer 112:1744-1750. Queen’s University, 10 Stuart Street, Kingston, ON, Canada; Cancer Care Ontario, Toronto, ON, Canada; Kingston General Hospital, Kingston, ON, Canada; University […]

Is the association between physical activity and healthcare utilization affected by self-rated health and socio-economic factors?

BMC Public Health 15:737. Lund University, Malmö, Sweden BACKGROUND: Physical activity and healthcare utilization has negative association. However, there appears to be limited knowledge of […]

Full-service family practice in British Columbia: policy interventions and trends in practice, 1991-2010

Healthc Policy 9:32-47. University of British Columbia Vancouver, BC, Canada BACKGROUND: British Columbia’s primary care reform (initiated in 2002) aims to promote “full-service family practice” […]

Risk-adjusted Medicare capitation rates using ambulatory and inpatient diagnoses

Health Care Financ Rev 17:77-99. Johns Hopkins School of Public Health, Baltimore, MD, USA Researchers at The Johns Hopkins University (JHU) developed two new diagnosis-oriented […]

Patient ability and willingness to participate in a web-based intervention to improve hypertension control.

J Med Internet Res 13:e1. Group Health Research Institute, Seattle, WA, USA BACKGROUND: Patient-shared electronic health records provide opportunities for care outside of office visits. […]

Measures of multimorbidity and morbidity burden for use in primary care and community settings: a systematic review and guide

Ann Fam Med 10:134-141. Academic Unit of Primary Health Care, School of Social and Community Medicine, Bristol University, Bristol, UK PURPOSE: Many patients consulting in […]

Development of a risk-adjusted capitation model based on principal inpatient diagnoses in Taiwan

J Formos Med Assoc 102:637-643. Graduate Institute of Health Policy and Management, College of Public Health, National Taiwan University, Taipei, Taiwan BACKGROUND AND PURPOSE: Taiwan’s […]

Use of proton pump inhibitors and risk of osteoporosis-related fractures

CMAJ 179:319-326. Department of Gastroenterology, Division of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada BACKGROUND: The use of proton pump inhibitors has been associated […]

Formal risk adjustment by private employers

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 […]

Patient use of secure electronic messaging within a shared medical record: a cross-sectional study

J Gen Intern Med 24:349-355. Group Health Cooperative, Center for Health Studies, Seattle, WA, USA BACKGROUND: Most patients would like to be able to exchange […]

HMO family physicians: men and women differ in their work

HMO Pract 9:155-161. Group Health Cooperative of Puget Sound, Seattle, WA, USA OBJECTIVE: The goal was to identify differences in the type of work and […]

Effect of premium, copayments, and health status on the choice of health plans

Med Care 46:1033-1040. Division of Health Care Policy & Research, Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA OBJECTIVE: Explore effects of comorbidity […]

Patient sharing among physicians and costs of care: a network analytic approach to care coordination using claims data

J Gen Intern Med 28:459-465. Johns Hopkins University School of Medicine, Baltimore, MD, USA BACKGROUND: Improving care coordination is a national priority and a key […]

Case-mix index and length of hospitalization

G Chir 31:211-214. Published in Italian. Department of Surgical Sciences, Sapienza University of Rome, Italy. The ACG (Adjusted Clinical Groups) case-mix system is a classification […]

ACG case-mix system aids contract assessment, improves performance

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 […]

Realigning incentives in fee-for-service Medicare

Health Aff 22:59-70. Schneider Institute for Health Policy, Brandeis University, Waltham, MA, USA This paper proposes Medicare payment reform built on the fee-for-service system, with […]

Work limitations and their relationship to morbidity burden among academic health center employees with diabetes

Workplace Health Saf 60:425-434. Department of Acute and Chronic Care, John Hopkins University School of Nursing, Baltimore, MD, USA The objective of this study was […]

Population-based trends in osteoporosis management after new initiations of long-term systemic glucocorticoids (1998-2008)

J Clin Endocrinol Metab 97:1236-1242. University of Alberta and University of Alberta Hospital, Edmonton, AB, Canada OBJECTIVES: Our objective was to describe changes in glucocorticoid-induced […]

Ambulatory care casemix measures

J Gen Intern Med 10:162-170. HSR&D Field Program, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, MA, USA No abstract PMID: 7769475

Racial and ethnic differences in utilization of health services in patients with diabetes enrolled in Medicaid

J Health Care Poor Underserved 15:562-575. General Internal Medicine and Health Services Research, UCLA School of Medicine, Los Angeles, CA, USA. We evaluated racial and […]

The effect of acupuncture utilization on healthcare utilization

Med Care 46:41-48. Department of Pharmacy Practice, Albany College of Pharmacy, Research Institute for Health Outcomes, Albany, NY, USA OBJECTIVE: To determine whether acupuncture is […]

A systematic review of health care efficiency measures

Health Serv Res 44:784-805. RAND, Arlington, VA, USA OBJECTIVE: To review and characterize existing health care efficiency measures in order to facilitate a common understanding […]

Achieving cost control, care coordination, and quality improvement in the Medicaid program

J Ambul Care Manage 33:38-49; discussion 69-70. ACS Government Healthcare Solutions, Helena, MT, USA As Medicaid spending rises quickly, controlling cost while coordinating care and […]

Bone microarchitecture assessed by TBS predicts osteoporotic fractures independent of bone density: the Manitoba study

J Bone Miner Res 26:2762-2769. Bone Disease Unit, University of Lausanne, Lausanne, Switzerland The measurement of BMD by dual-energy X-ray absorptiometry (DXA) is the “gold […]

Two-year trends in colorectal cancer screening after switch to a high-deductible health plan

Med Care 49:865-871. Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA BACKGROUND: Recent health reform laws might […]

Postoperative health-care utilization in Crohn’s disease: the impact of specialist care

Am J Gastroenterol 107:1522-1529. Mount Sinai Hospital Centre for Inflammatory Bowel Disease, University of Toronto, Toronto, ON, Canad OBJECTIVES: Crohn’s disease (CD) patients frequently require […]

How does complementary private prescription drug insurance coverage affect seniors’ use of publicly funded medications?

Health Policy 110:147-155. School of Public Policy and Governance, University of Toronto, Toronto, ON, Canada BACKGROUND: Like in many other high-income jurisdictions, the public drug […]

Division of primary care services between physicians, physician assistants, and nurse practitioners for older patients with diabetes

Med Care Res Rev 70:531-541. University of Wisconsin–Madison, WI, USA; University of Pittsburgh School of Pharmacy, Pittsburgh, PA, USA Team-based care involving physician assistants and/or […]

Resources allocation and health care needs in diabetes care in Danish GP clinics

Health Policy 113:206-215. Institute of Public Health, Centre of Health Economics Research, Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark BACKGROUND: In several […]

Measuring medical productivity to gauge the value of Medicare

Minn Med 96:46-48. Department of Finance, Medical Industry Leadership Institute, Carlson School of Management, University of Minnesota, Minneapolis, MN, USA. Having a measure of productivity […]

The effect of medical malpractice liability on rate of referrals received by specialist physicians

Health Econ Policy Law 8:453-475. Yale University School of Medicine, New Haven, CT, USA; Wayne State University, Detroit, MI, USA; University of Michigan, School of […]

Determinants of buprenorphine treatment for opioid dependence

J Subst Abuse Treat 46:315-319. Washington State University, Spokane, WA, USA; Group Health Research Institute, Seattle, WA, USA This study assessed the social, demographic and […]

How is the electronic health record being used? Use of EHR data to assess physician-level variability in technology use

J Am Med Inform Assoc Weill Cornell Medical College, New York, NY, USA BACKGROUND: Studies of the effects of electronic health records (EHRs) have had […]

Procedures take less time at ambulatory surgery centers, keeping costs down and ability to meet demand up

Health Aff 33:764-769. University of Louisville, Louisville, KY, USA; University of Minnesota, Minneapolis, MN, USA During the past thirty years outpatient surgery has become an […]

The association between parental depression and children’s health care utilization and expenditures: exploring the dimensions of parental gender and timing of depressive symptoms

Baltimore, MD, USA: Johns Hopkins University (doctoral dissertation). Department of Health Policy and Management, Johns Hopkins University, Baltimore, MD, USA Methods: The study used multiple […]

A descriptive analysis of the Ontario MedsCheck annual pharmacy medication review service

Canadian Pharmacists Journal 148:S27. OBJECTIVES: A MedsCheck Annual (MCA) consultation is a medication review service funded by the Ontario government for people taking three or […]

Associations among socioeconomic status (SES), patterns of care and outcomes in breast cancer (BC) patients (pts) in a universal health care system: Ontario’s experience

2014 American Society of Clinical Oncology Annual Meeting. Abstract 6625. J Clin Oncol 32 (suppl; abstr 6625). University of Toronto, Toronto, ON, Canada; Sunnybrook Health […]

The impact of not having a primary care physician among people with chronic conditions

Toronto, ON, Canada: Institute for Clinical Evaluative Sciences. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada BACKGROUND: Primary care plays a pivotal role in health […]

Using the Adjusted Clinical Groups System to identify high-risk hemodialysis patients in Taiwan

J Healthc Manag 11:311-326. Published in Chinese. OBJECTIVES: There has been a rising number and cost of patients with regular hemodialysis in Taiwan. The objective […]

Risk distribution and risk assessment among enrollees in Washington state’s Medicaid SSI population

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) […]

Risk adjustment and rate setting methods in public programs

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 […]

Updating and calibrating the Johns Hopkins University ACG/ADG risk adjustment method for application to Medicare risk contracting

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 […]

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