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Influence of compliance on the incidence of cardiovascular events and health costs when using single-pill fixed-dose combinations for the treatment of hypertension

Med Clin (Barc) 136:183-191. Directorate of Planning, Badalona Serveis Assistencials SA, Badalona, Spain BACKGROUND AND OBJECTIVE: To determine the incidence of cardiovascular events (CVE) and […]

High mortality and low access to care following incident acute myocardial infarction in individuals with schizophrenia

Schizophr Res 142:52-57. Centre for Addiction and Mental Health, Toronto, ON, Canada OBJECTIVES: The primary objective of this study was to compare mortality following incident […]

Attention-deficit/hyperactivity disorder after early exposure to procedures requiring general anesthesia

Mayo Clin Proc 87:120-129. Mayo Clinic, Rochester, MN, USA OBJECTIVE: To study the association between exposure to procedures performed under general anesthesia before age 2 […]

Are cervical and breast cancer screening programmes equitable? The case of women with intellectual and developmental disabilities

J Intellect Disabil Res 57:478-488. School of Nursing Sciences, University of East Anglia, Norwich, UK BACKGROUND: Effective cancer screening must be available for all eligible […]

Socioeconomic variation in the burden of chronic conditions and health care provision–analyzing administrative individual level data from the Basque Country, Spain

BMC Public Health 13:870. Oberri (The Basque Institute for Health Innovation), Sondika, Bizkaia, Spain BACKGROUND: Chronic diseases are posing an increasing challenge to society, with […]

Impact of bariatric surgery on health care costs of obese persons: a 6-year follow-up of surgical and comparison cohorts using health plan data

JAMA Surg 148:555-561. Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA IMPORTANCE: Bariatric surgery is a well-documented […]

Waiting to see the specialist: patient and provider characteristics of wait times from primary to specialty care

BMC Fam Pract 15:16. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada BACKGROUND: Wait times are an important measure of access to various health care […]

Comparison of the predictive validity of diagnosis-based risk adjusters for clinical outcomes

Med Care 43:61-67. Houston Center for Quality of Care and Utilization Studies, Houston VA Medical Center, Houston, TX, USA OBJECTIVES: Many possible methods of risk […]

State funding for health information technology and selected ambulatory healthcare quality measures

Appl Clin Inform 5:594-602. Weill Cornell Medical College, New York, NY, USA BACKGROUND: Previous studies on the effects of health information technology (health IT) on […]

Evaluation of the Maryland Multi-Payer Patient Centered Medical Home Program

First Annual Report. Baltimore, MD, USA: Maryland Health Care Commission. IMPAQ International, Columbia, MD, USA The Maryland Health Care Commission (MHCC), an agency of the […]

Primärvårdens ersättnings- och styrsystem i förändring: ACG – kejsarens nya kläder?

Socialmedicinsk tidskrift Socialmedicinsk tidskrift:200-215. Published in Swedish Academy of Health and Welfare, Mälardalen University, Eskilstuna, Sweden The SALAR-project ‘Care on Equal Terms’ evaluation showed that […]

Determinants of delayed discharge from acute care among patients with hypoxic-ischemic brain injury

Arch Phys Med Rehabil 96:e15. Toronto Rehabilitation Institute, Toronto, ON, Canada Objective(s): To describe key demographic and acute care characteristics  of patients admitted with a […]

The use of drugs in Montrealers aged 65 years and older in 2005-2006

Montreal, QC, Canada: Montreal Health and Social Services Agency. Published in French; also have English translation. Montreal Health and Social Services Agency, Montreal, QC, Canada […]

Center for Health Program Development and Management, University of Maryland, Baltimore County, and Actuarial Research Corporation

A guide to implementing a health-based risk-adjusted payment system for Medicaid managed care programs. Annandale, VA, USA: Center for Health Program Development and Management, University […]

Pharmaceutical use in Manitoba: opportunities to optimize use

Winnipeg, MB, Canada: Manitoba Centre for Health Policy. Manitoba Centre for Health Policy, University of Manitoba, Winnipeg, MB, Canada This report provides a snapshot of […]

The Florida MediPass program

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, […]

Assessment of Ambulatory Care Groups with comparison to existing ambulatory case-mix classification systems

Systems Research and Applications Corporation. Arlington, VA, USA: Systems Research and Applications Corporation. Systems Research and Applications Corporation, Arlington, VA, USA The Office of the […]

L’utilisation des services de sante par les Montrealais atteings de diabete, annees 2001-2002 a 2009-2010

Montreal, QC, Canada: Montreal Health and Social Services Agency. Montreal Health and Social Services Agency, Montreal, QC, Canada No abstract

Evaluation of diagnosis-based risk adjustment among specific subgroups: can existing adjusters be improved by simple modifications?

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 […]

Evaluation of alternative diagnosis based risk adjustment models and morbidity trajectories for application in Taiwan

Baltimore, MD, USA: Johns Hopkins University (doctoral dissertation). Department of Health Policy and Management, Johns Hopkins University, Baltimore, MD, USA OBJECTIVE: The overall goals of […]

Hospitalizations for ambulatory care sensitive conditions among persons with an intellectual disability,

Manitoba, 1999-2003. Toronto, ON, Canada: University of Toronto (doctoral dissertation). University of Toronto, Toronto, ON, Canada This thesis examines hospitalizations for ambulatory care sensitive conditions […]

Nursing home adverse events: further insight into highest risk periods

Journal of the American Medical Directors Association 12:467-474. University of Manitoba, Winnipeg, MB, Canada INTRODUCTION: Adverse events (AEs) occur frequently in nursing homes (NHs). Although […]

The feasibility of an outpatient casemix classification system based on the health insurance database in Thailand

Health Systems Research Institute and Alliances :Published in Thai. The objective of this study was to examine the feasibility of an outpatient casemix classification system […]

Comparing the costs and use of services for military care in military and civilian facilities

Orlando, FL, USA: AcademyHealth Annual Research Meeting. NORC at the University of Chicago, Bethesda, MD, USA RESEARCH OBJECTIVE: The objective is to compare the cost […]

The association between metformin therapy and mortality following breast cancer: a population-based study

Toronto, ON, Canada: University of Toronto (masters thesis). University of Toronto, Toronto, ON, Canada Metformin has been associated with a reduction in breast cancer incidence, […]

Resource Allocation Case Study-Government

The Ministry of Health in Chile used the ACG® System as a risk-adjustment mechanism to improve health care resource allocation and better describe the disease […]

Enhanced Use of Data for Case Management in England

Johns Hopkins Bloomberg School of Public Health The Enhanced Use of Primary Care, Ambulatory Hospital Data to Identify Patients for Case Management Programs in England […]

Customizing the Predictive Model

DST Health Solutions Customizing the Predictive Model Amy Salls

Using the ACG System for population segmentation and casemix adjustment

NHS Central Southern Commissioning Support Unit Using the ACG System for Population Segmentation and Casemix Adjustment Chris Morris Principal Analyst

Monday(C1)-A Model for the Risk of Unplanned Inpatient Readmission-Lemke

A Model for the Risk of Unplanned Inpatient Readmission-Klaus Lemke

Sunday-Workshop: Wrapping Your Hands Around the ACG System Advanced Reporting Options – Steve Sutch

Workshop: Wrapping Your Hands Around the ACG System Advanced Reporting Options – Steve Sutch – ACG International – Product Management Director

Using Case Mix To Improve Equity and the Delivery of Primary Care

Goals of Presentation To introduce concepts surrounding population-based case-mix and “predictive risk” modeling. To show examples of applications worldwide where case-mix has proved information to […]

The ACG System Development Milestones

Jonathan Weiner, DrPH, Professor, Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, and ACG System co-developer provides an insight into the evolution […]

Resource Allocation Case Study-Government

Sweden became one of the first international adopters of the Johns Hopkins ACG System in the mid 1990s and has expanded its use to cover […]

Genetics Consultation Rates Following a Diagnosis of High-Grade Serous Ovarian Carcinoma in the Canadian Province of Ontario

Objective: In 2001, the province of Ontario expanded cancer genetic testing eligibility to include all women with high-grade serous ovarian carcinoma (HGSC) of the ovary, […]

Is case-mix adjustment in primary care at the mercy of coding quality? Yes … and no

BACKGROUND:  Primary care clinicians know that case-mix varies between different physician practices and geographical areas. Leicester City Clinical Commissioning Group (CCG) is now able to quantify […]

Effectiveness of a community care management program for multimorbid elderly patients with heart failure in the Veneto Region

Abstract Background The rapidly growing population of elderly subjects with multimorbidity is at risk of receiving fragmented and uncoordinated care, and have frequent hospitalizations and […]

Population risk and burden of health behavioral–related all-cause, premature, and amenable deaths in Ontario, Canada: Canadian Community Health Survey–linked mortality files

Abstract   Purpose To examine the association of all-cause and premature mortality with four modifiable lifestyle behaviors and quantify the burden of behavioral-related premature death in Ontario, […]

An instrumental variable approach quantifies and confirms the duration of pre-transplant dialysis has negative impact on kidney transplant recipient survival

Abstract Dialysis prior to kidney transplantation may have a detrimental effect on post-transplant Outcomes. However, prior studies have not fully characterized the nature of this […]

Interaction between neighborhood walkability and traffic-related air pollution on hypertension and diabetes: The CANHEART cohort

Abstract Background Living in unwalkable neighborhoods has been associated with heightened risk for diabetes and hypertension. However, highly walkable environments may have higher concentrations of […]

Understanding those overdue for cancer screening by five years or more: A retrospective cohort study in Ontario, Canada

Abstract Populations that are more than just slightly overdue for breast, cervical and colorectal screening should likely be targeted for policy and practice interventions. We […]

Association of Patient, Prescriber, and Region With the Initiation of First Prescription of Biologic Disease-Modifying Antirheumatic Drug Among Older Patients With Rheumatoid Arthritis and Identical Health Insurance Coverage

Abstract Importance Prescribing the first biologic treatment for rheumatoid arthritis (RA) is an important decision for patients, their physicians, and payers, with considerable costs and […]

Multimorbidity patterns in patients with heart failure: an observational Spanish study based on electronic health records

Abstract Objectives To characterise the comorbidities of heart failure (HF) in men and women, to explore their clustering into multimorbidity patterns, and to measure the […]

A Revised Classification Algorithm for Assessing Emergency Department Visit Severity of Populations

ABSTRACT Objectives: Analyses of emergency department (ED) use require visit classification algorithms based on administrative data. Our objectives were to present an expanded and revised version […]

Health care service usage and costs for high-needs elderly patients with heart failure

Abstract Background Heart failure (HF) has been defined as global disease of pandemic proportions, since it affects around 26 million people worldwide.[1] According to a recent […]

Personalized prediction of early childhood asthma persistence: A machine learning approach

Abstract Objective Early childhood asthma diagnosis is common; however, many children diagnosed before age 5 experience symptom resolution and it remains difficult to identify individuals […]

Association Between Surgical Approach and Major Surgical Complications in Patients Undergoing Total Hip Arthroplasty

Abstract Objective To determine whether an anterior approach is associated with lower risk of complications than either a lateral or posterior approach. Design, Setting, and […]

Effect of frailty on postoperative readmissions and cost of care for ovarian cancer

Abstract Objectives Frailty, defined as loss of reserve and vulnerability to changes in health, affects many ovarian cancer patients who are planned to undergo surgery. […]

Healthcare resource utilization in myeloproliferative neoplasms: a population-based study from Ontario, Canada

Abstract Background Health resource utilization (HRU) and associated factors of high cost are not well understood in myeloproliferative neoplasms (MPNs). Methods In this population-based, retrospective […]

Impact of Coronary Artery Severity and Revascularization Prior to Transcatheter Aortic Valve Implantation

Abstract Objective The prevalence of coexisting coronary artery disease (CAD) is high in patients who underwent transcatheter aortic valve implantation (TAVI). Our objective was to […]

Stratifying for Value: An Updated Population Health Risk Stratification Approach

Abstract Objective Most risk stratification approaches attempt to predict clinical outcomes rather than value. For a provider organization or health system to have financial success […]

Kidney Function and Potassium Monitoring After Initiation of Renin-Angiotensin-Aldosterone System Blockade Therapy and Outcomes in 2 North American Populations

Abstract Background: Clinical practice guidelines recommend routine kidney function and serum potassium testing within 30 days of initiating ACE (angiotensin-converting enzyme) inhibitor or angiotensin II […]

Factors Associated With Nonreceipt of Recommended COPD Medications

Abstract Background COPD medications reduce exacerbations and improve quality of life. Despite this, some individuals do not receive medications recommended by practice guidelines. Research Question […]

Performance of quantitative measures of multimorbidity: a population-based retrospective analysis

Abstract Background Multimorbidity measures are useful for resource planning, patient selection and prioritization, and factor adjustment in clinical practice, research, and benchmarking. We aimed to […]

Identifying Complex Patients Using Adjusted Clinical Groups Risk Stratification Tool

ABSTRACT Objectives To produce an efficient and practically implementable method, based on primary care data exclusively, to identify patients with complex care needs who have […]

Validating and Improving Adjusted Clinical Group’s Future Hospitalization and High-Cost Prediction Models for Dutch Primary Care

Abstract The rise in health care costs, caused by older and more complex patient populations, requires Population Health Management approaches including risk stratification. With risk […]

Effect of periodic health exam on provider management of preventive services

Abstract Rationale and objective To evaluate the relationship between receipt of annual physicals and the receipt of provider recommendation for preventive services, during a period […]

Using Additional Data Sets

This webinar explores the use of data sets from other Health and Social Care providers with the ACG system. In particular, it will focus on […]

Inter-Relationship Between Frailty & Multimorbidity

Presented by: Alan Thompson, MSc
Director of User Support, ACG System

Whilst it is true that resource use increases with an increasing degree of frailty, this presentation will demonstrate that not all frail patients are high cost and not all high cost patients are frail.

The excess medical cost and health problems of family members of persons diagnosed with alcohol or drug problems

Med Care 45:116-122. Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA BACKGROUND: Having a family member with substance use problems affects family functioning, […]

Is socioeconomic status associated with utilization of health care services in a single-payer universal health care system?

Int J Equity Health 13:115. Ben-Gurion University, Beer Sheva, Israel; Clalit Health Services, Tel Aviv, Israel OBJECTIVES: To assess an association of Socio-economic status with […]

Validation of 2 new measures of continuity of care based on year-to-year follow-up with known providers of health care

Ann Fam Med 12:559-567. Montreal Health and Social Services Agency, Montreal, QC, Canada PURPOSE: In a primary care context favoring group practices, we assessed the […]

The healthy migrant effect in primary care

Gac Sanit 29:15-20. Aragón Health Sciences Institute (IACS), Zaragoza, Spain; University of Zaragoza, Zaragoza, Spain; Miguel Servet University Hospital, Zaragoza, Spain; Carlos III Health Institute, […]

Medication oversupply in patients with diabetes

Res Social Adm Pharm 11:382-400. Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, PA, USA; University of Pittsburgh, PA, USA; University of Wisconsin, Madison, WI, USA; Pharmacy […]

Prognostic factors in metastatic gastric cancer: results of a population-based, retrospective cohort study in Ontario

Gastric Cancer 19:150-159. Department of Surgery, Maimonides Medical Center, Brooklyn, NY, USA BACKGROUND: Stage IV gastric cancer is lethal, and little population-based research on prognostic […]

The temporal risk of heart failure associated with adjuvant trastuzumab in breast cancer patients: a population study

J Natl Cancer Inst 108:10. University of Toronto, Toronto, ON, Canada; St. Michael’s Hospital, Toronto, ON, Canada; Institute for Clinical Evaluative Sciences, Toronto, ON, Canada; […]

The origin of variation in primary care process and outcome indicators: patients, professionals, centers, and health districts

Medicine 94:e1314. Centro de Salud de Astrabudua (Primary Health Care Center of Astrabudua), Osakidetza (Basque Health Service), Erandio (Bizkaia), Spain; Primary Care Research Unit-Bizkaia, Osakidetza, […]

Characteristics of physicians and patients who join team-based primary care practices: evidence from Quebec’s Family Medicine Groups

Health Policy 116:264-272. McGill University, Montreal, QC, Canada; Direction de la santé publique de l’Agence de la Santé et des services sociaux de Montréal, Montreal, […]

Adjusted Clinical Groups Method (ACG) to allocate resources according to the disease burden of each health center

Santelices C E, Muñoz P F, Muñiz P, Rojas J. BACKGROUND: Health care must be provided with strong primary health care models, emphasizing prevention and a […]

Determining the morbidity profile, health-service utilization and health-provider efficiency in the Rejang River Basin, Sarawak, based on TPC® data and the Johns Hopkins ACG® System

BMC Health Serv Res 10:A8. Ministry of Health, Malaysia; Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA Introduction: The study focused on the […]

Validating the Johns Hopkins ACG Case-Mix System of the elderly in Swedish primary health care

BMC Public Health 6:171. Blekinge Institute for Research & Development, Karlshamn, Sweden BACKGROUND: Individual based measures for comorbidity are of increasing importance for planning and […]

Use of diagnosis-based risk adjustment models to predict individual health care expenditure under the National Health Insurance system in Taiwan

J Formos Med Assoc 104:883-890. Graduate Institute of Health Care Organization Administration, College of Public Health, National Taiwan University, Taipei, Taiwan. BACKGROUND AND PURPOSE: Diagnostic […]

Risk adjustment using administrative data-based and survey-derived methods for explaining physician utilization

Med Care 48:175-182. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada OBJECTIVES: The objective of this study was to evaluate an administrative data-based risk adjustment […]

An in-depth assessment of a diagnosis-based risk adjustment model based on national health insurance claims: the application of the Johns Hopkins Adjusted Clinical Group case-mix system in Taiwan

BMC Med 8:7. Department of Health Policy & Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA BACKGROUND: Diagnosis-based risk adjustment is […]

Predicting healthcare costs in a population of Veterans Affairs beneficiaries using diagnosis-based risk adjustment and self-reported health status

Med Care 42:1027-1035. Houston Center for Quality of Care and Utilization Studies, Health Services Research and Development Service, Michael E. DeBakey Veterans Affairs Medical Center, […]

Evaluation of guideline-concordant care for bipolar disorder among privately insured youth

Prim Care Companion J Clin Psychiatry 12:PCC.09m00837. Health Services Research Department, Institute of Psychiatry, King’s College London, London, UK OBJECTIVE: To describe and quantify the […]

Applying population-based case mix adjustment in managed care: the Johns Hopkins Ambulatory Care Group system

Manag Care Q 2:21-34. CSC Healthcare Systems, Inc., Malden, MA, USA When analyzing medical utilization or other health care-related measurements across provider panels, case mix […]

In search of the perfect comorbidity measure for use with administrative claims data: does it exist?

Med Care 44:745-753. Department of Family Medicine, University of Washington, Seattle, WA, USA BACKGROUND: Numerous measures of comorbidity have been developed for health services research […]

The development of Ambulatory Care Groups in primary care

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 […]

Comparison of private for-profit with private community-governed not-for-profit primary care services in New Zealand

J Health Serv Res Policy 9 Suppl 2:17-22. Department of Public Health, Wellington School of Medicine and Health Sciences, Wellington, New Zealand OBJECTIVE: To compare […]

Costs vs quality in different types of primary care settings

JAMA 272:1903-1908. Department of Health Policy and Management, School of Hygiene and Public Health, Johns Hopkins University, Baltimore, MD, USA OBJECTIVE: To determine the relationship […]

The validity of claims-based risk estimation in underinsured populations

Am J Manag Care 18:e468-e476. Institute for Health and Disability Policy Studies, University of Kansas, Lawrence, KS OBJECTIVES: To demonstrate a threat to validity in […]

The post-fracture care gap among Canadian First Nations peoples: a retrospective cohort study

Osteoporos Int 23:929-936. Department of Medicine, University of Manitoba, 409 Tache Avenue, Winnipeg, MB, Canada Despite targeted attempts to reduce post-fracture care gaps, we hypothesized […]

Taking health status into account when setting capitation rates: a comparison of risk-adjustment methods

JAMA 276:1316-1321. Health Research Center, Institute for Research and Education, HealthSystem Minnesota, Minneapolis, MN, USA OBJECTIVE: To compare performance of different health status measures for […]

Cardiology workforce: a shortage, not a surplus

Health Aff W4:64-66. Mayo Clinic College of Medicine, Rochester, MN, USA The United States faces a serious shortage of cardiologists as our population ages and […]

Adjusted Clinical Groups use as a measure of the referrals efficiency from primary care to specialized in Spain

Eur J Public Health 17:657-663. Planning Management, Badalona Serveis Assistencials, SA, Badalona, Barcelona, Spain BACKGROUND: To determine the referral rate (RR) per centre, its main […]

Medicaid managed care payment rates in 1998

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 […]

Chronic care improvement in primary care: evaluation of an integrated pay-for-performance and practice-based care coordination program among elderly patients with diabetes

Health Serv Res 45:1763-1782. Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Johns Hopkins Healthcare LLC, Glen Burnie, MD, USA OBJECTIVE: […]

Implementation of electronic medical records: effect on the provision of preventive services in a pay-for-performance environment

Can Fam Physician 57:e381-e389. Department of Family and Community Medicine, University of Toronto, ON, Canada OBJECTIVE: To study the effect of electronic medical record (EMR) […]

Estimation of chronic co-morbidity on health costs in elderly patients with neurological disorders

Rev Peru Med Exp Salud Publica 28:564-565. Published in Spanish. Directorate of Planning, Badalona Serveis Assistencials SA, Badalona, Spain Sr. Editor. El envejecimiento progresivo de […]

Medical care costs associated with traumatic brain injury over the full spectrum of disease: a controlled population-based study

J Neurotrauma 29:2038-2049. Mayo Clinic, Rochester, MN, USA Data on traumatic brain injury (TBI) economic outcomes are limited. We used Rochester Epidemiology Project (REP) resources […]

The performance of administrative and self-reported measures for risk adjustment of Veterans Affairs expenditures

Health Serv Res 40:887-904. Health Services Research and Development Northwest Center of Excellence, Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA. OBJECTIVE: To […]

Socio-economic position and childhood multimorbidity: a study using linkage between the Avon Longitudinal study of parents and children and the general practice research database

Int J Equity Health 12:66. School of Social and Community Medicine, University of Bristol, Bristol, UK INTRODUCTION: In adults, multimorbidity is associated with social position. […]

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