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The relationship between effectiveness and costs measured by a risk-adjusted case-mix system: multicentre study of Catalonian population data bases

BMC Public Health 9:202. Directorate of Planning, Badalona Serveis Assistencials SA, Badalona, Barcelona, Spain BACKGROUND: The main objective of this study is to measure the […]

Adjusted Clinical Groups use at a Spanish primary care center: a retrospective, population-based study

Rev Panam Salud Publica 27:49-55. Published in Spanish. Dirección de Planificación, Badalona Serveis Assistencials, S.A., Barcelona, Spain OBJECTIVES: To evaluate the results of implementing a […]

What is the comparative health status and associated risk factors for the Metis? A population-based study in Manitoba, Canada

BMC Public Health 11:814. Manitoba Centre for Health Policy, University of Manitoba, Winnipeg, MB, Canada BACKGROUND: Métis are descendants of early 17th century relationships between […]

Impact of bariatric surgery on health care utilization and costs among patients with diabetes

Med Care 50:58-65. Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA BACKGROUND: The effect of bariatric surgery […]

Case-mix adjusting performance measures in a veteran population: pharmacy- and diagnosis-based approaches

Health Serv Res 38:1319-1337. VA Puget Sound Health Care System, Seattle, WA, USA OBJECTIVE: To compare the rankings for health care utilization performance measures at […]

Risk adjusting capitation: applications in employed and disabled populations

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 […]

Use of risk adjustment in setting budgets and measuring performance in primary care I: how it works

BMJ 323:604-607. School of Public Policy, University College London, London, UK No abstract PMID: 11557709 PMCID: PMC55577

Are low-income elderly patients at risk for poor diabetes care?

Diabetes Care 27:1060-1065. Colorado Foundation for Medical Care, Denver, CO, USA OBJECTIVE: Diabetes is common among low-income elderly, dual-eligible (DE) Medicare/Medicaid patients resulting in significant […]

Obtaining the mean relative weights of the cost of care in Catalonia (Spain): retrospective application of the Adjusted Clinical Groups case-mix system in primary health care

J Eval Clin Pract 19:267-276. Directorate of Planning, Badalona Serveis Assistencials SA, Badalona, Spain OBJECTIVE: The study aims to obtain the mean relative weights (MRWs) […]

Exploratory analysis of high CT scan utilization in claims data

J Am Coll Radiol 11:51-58. University of Minnesota, Minneapolis, MN. USA; Arizona State University, Tempe, AZ, USA PURPOSE: This study explores characteristics that distinguish higher […]

Increased risk of complications following total joint arthroplasty in patients with rheumatoid arthritis

Arthritis Rheumatol 66:254-263. University of Toronto, Toronto, ON, Canada OBJECTIVE: Most of the evidence regarding complications following total hip arthroplasty (THA) and total knee arthroplasty […]

High-risk case identification for use in comprehensive complex care management

Popul Health Manag. Clalit Research Institute , Chief Physician’s Office, Clalit Health Services, Tel Aviv, Israel . The current study aimed to develop a patient […]

Association of the Hospital Volume of Frail Surgical Patients Cared for with Outcomes after Elective, Major Noncardiac Surgery

Background: Frailty is a risk factor for adverse postoperative outcomes. Hospitals that perform higher volumes of surgery have better outcomes than low-volume providers. We hypothesized […]

A health insurance plan with wellness features

Ithaca, NY, USA: Cornell University (doctoral dissertation). Cornell University, Ithaca, NY, USA Employers are increasingly using wellness programs to improve health and lifestyle of employees. […]

Medi-Cal and managed care: risk, costs, and regional variation

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 […]

Impact of center case volume on cardiotoxicity during adjuvant trastuzumab in breast cancer

2013 American Society of Clinical Oncology Annual Meeting. Abstract 6625. J Clin Oncol 31 (suppl; abstr 6625). University of Toronto, Toronto, ON, Canada; St. Michael’s […]

Mesurer la morbidite chez les patients diabetiques a Montreal.

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

The actual versus expected health care use among Healthy Kids enrollees

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 […]

Ambulatory case-mix methodologies: applications to primary care research

In: Grady M, eds. Primary care research: theory and methods. Washington, DC: USDHHS. AHCPR Pub 91-0011:75-81. Johns Hopkins University, Baltimore, MD, USA This paper describes […]

Differences in case mix between CHC users and non users: Washington and Missouri

MDS Associates, Laguna Research Associates. Final report to the Bureau of Primary Health Care. Wheaton, MD, USA: MDS Associates. Wheaton, MD, USA; San Francisco, CA, […]

A comparative analysis of claims-based methods of health risk assessment for commercial populations

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 […]

Effect of patient cost sharing in South Korea: ACG risk-adjusted differences in health care utilization and expenditures among National Health Insurance and Medical Aid enrollees, 2004-2005

Baltimore, MD, USA: Johns Hopkins University (doctoral dissertation). Johns Hopkins University, Baltimore, MD, USA Korea has experienced a period of rapid economic development and industrialization […]

Provider profiling: implementation issues within Florida MediPass

Gainesville, FL, USA: University of Florida. University of Florida, Gainesville, FL, USA Provider profiling use epidemiological methods to compare physician practice  patterns across various dimensions […]

Using the ACG casemix system in population health management programs at Johns Hopkins

BMC Health Serv Res 9:A16. Johns Hopkins HealthCare, Glen Burnie, MD, USA   Introduction: Johns Hopkins HealthCare contracts with the US Department  of Defense (DOD) […]

Who uses exenatide for glucose control in diabetes mellitus?

A retrospective cohort study of a new therapy? Rockville, MD, USA: Agency for Healthcare Research and Quality. Johns Hopkins University, Baltimore, MD, USA BACKGROUND: Exenatide […]

Direct costs of hip fractures among seniors in Ontario

Toronto, ON, Canada: University of Toronto (masters thesis). University of Toronto, Toronto, ON, Canada Osteoporosis is a major public health problem resulting in substantial hip […]

Electronic patient provider communication in diabetes care

Seattle, WA, USA: University of Washington (doctoral dissertation). University of Washington, Seattle, WA, USA Diabetes is a chronic illness of increasing public health importance affecting […]

Measuring health status for risk adjusting capitation payments

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 […]

Asthma drug regimen optimality and health services utilization: a population-based analysis in British Columbia

Vancouver, BC, Canada: University of British Columbia (doctoral dissertation). University of British Columbia, Vancouver, BC, Canada BACKGROUND: Drug therapy is the mainstay medical treatment for […]

Identifying People at Increased Risk of Severe Illness from COVID-19 in the UK

During the current pandemic, NHS stakeholders need to identify their most vulnerable patient populations. This short report shares how insights from the ACG System can […]

Introduction to the ACG System

Johns Hopkins Bloomberg School of Public Health Population Based Casemix- An Introduction to the ACG System Dr Peter F. S. Lee

Tuesday-Re-thinking ACG fundamentals-Low

Clalit Profiling Morbidity Burden in Primary Care: Local Calibration of a Case-Mix Model to Account for the Burden Israeli Primary Care Physicians Face Ran D. […]

Monday-US Health Reform-Gootee

MZI HealthCare A Population Health Model for Physician Reimbursement: A Hybrid Approach Greg Gootee, MBA

Monday-Care Coordination II-Jabaar

Discovery Health A Virtually Integrated Care Delivery Model for Complex, High-Needs Patients Riedwaan Jabaar

LookingBackLookingForward

Johns Hopkins Bloomberg School of Public Health Looking Back, Looking Forward: Johns Hopkins ACG System Improving Health Care Worldwide for 30 Years Professor Jonathan P. […]

2014 Reform Preparation: What Health Plans Need to Know Now!

DST Health Solutions 2014 Reform Preparation: What Health Plans Need to Know Now! Teri Mullaney, Chief Strategy Officer

Monday(C5)-Expanding the clinical toolbox for progressive healthcare intervention —Lizelle Steenkamp

Expanding the clinical toolbox for progressive healthcare intervention —Lizelle Steenkamp, Discovery Health 

Tuesday(P2)-Reaching The EMR / e-Health Tipping Point: Implications for the Future of Health Care and Population Health-Jonathan P. Weiner DrPH

Reaching The EMR / e-Health Tipping Point:  Implications for the Future of Health Care and Population Health  —Jonathan P. Weiner, DrPH  Professor of Health Policy […]

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About the ACG System V11.0 Release

In this video, Chad Abrams, M.A.; Director of U.S. Operations, ACG System; briefly describes the Johns Hopkins ACG System highlighting features included in the software’s version 11 release. Learn more.

The uptake of active surveillance for the management of prostate cancer: A population-based analysis

Introduction: Active surveillance (AS) is a strategy for the management of low-risk prostate cancer (PCa). However, few studies have assessed the uptake of AS at […]

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

Health Innovation Program, the University of Wisconsin School of Medicine and Public Health from The Wisconsin Partnership Program, and the Community–Academic Partnerships core of the […]

Primary care utilization in people who experience imprisonment in Ontario, Canada: a retrospective cohort study

Abstract Background Access to primary care is an important determinant of health, and data are sparse on primary care utilization for people who experience imprisonment. […]

Vulnerable And Less Vulnerable Women In High-Deductible Health Plans Experienced Delayed Breast Cancer Care

ABSTRACT The effects of high-deductible health plans (HDHPs) on breast cancer diagnosis and treatment among vulnerable populations are unknown. We examined time to first breast […]

Patient-reported symptoms after breast cancer diagnosis and treatment: A retrospective cohort study

Abstract Aim Breast cancer and its treatment are associated with varying symptoms. The province of Ontario (13.6 million) has implemented a provincial programme to screen for symptoms among […]

Performance on the Operant Test Battery in young children exposed to procedures requiring general anaesthesia: the MASK study

Abstract Background It is not known whether the neurotoxicity produced by anaesthetics administered to young animals can also occur in children. Exposure of infant macaques […]

Prevalence of intellectual and developmental disabilities among first generation adult newcomers, and the health and health service use of this group: A retrospective cohort study

Abstract Background Attention to research and planning are increasingly being devoted to newcomer health, but the needs of newcomers with disabilities remain largely unknown. This […]

Multimorbidity Patterns in Patients with Back Pain: A Study of Patient Records at a Primary Health Care Centre in Sweden

Abstract In Primary Care, multimorbidity is the norm in most patients. A large part of these have pain disorders, very often related to the spine. […]

Changes in primary care provider utilization by phase of care for women diagnosed with breast cancer: a CanIMPACT longitudinal cohort study

Abstract Background Primary care providers (PCPs) have always played an important role in cancer diagnosis. There is increasing awareness of the importance of their role […]

Does early palliative identification improve the use of palliative care services?

Abstract Purpose To evaluate whether the early identification of patients who may benefit from palliative care impacts on the use of palliative, community and acute-based […]

Predicting the Cost of Health Care Services : A Comparison of Case-mix Systems and Comorbidity Indices That Use Administrative Data

Abstract Background: Case-mix systems and comorbidity indices aggregate clinical information about patients over time and are used to characterize need for health care services. These […]

Use of administrative record linkage to measure medical and social risk factors for early developmental vulnerability in Ontario, Canada

Abstract Background Linkage of demographic, health, and developmental administrative data can enrich population-based surveillance and research on developmental and educational outcomes. Transparency of the record […]

Analysis of the relationship between surgeon procedure volume and complications after total knee arthroplasty using a propensity-matched cohort study

Abstract Objectives This study aimed to identify a threshold in annual surgeon volume associated with increased risk of revision (for any cause) and deep infection […]

Determinants of vaccination uptake, and influenza vaccine effectiveness in preventing deaths and hospital admissions in the elderly population; Treviso, Italy, 2014/2015-2016/2017 seasons

ABSTRACT Objective Seasonal influenza is an important cause of morbidity and mortality, particularly among the elderly population. Determinants of vaccination uptake and its impact on […]

Frailty impact on postoperative complications and early mortality rates in patients undergoing radical cystectomy for bladder cancer: a systematic review

Abstract Objective To assess the prevalence of frailty, a status of vulnerability to stressors leading to adverse health events, in bladder cancer patients undergoing radical […]

Medical use of cocaine and perioperative morbidity following sinonasal surgery—A population study

Abstract Background Topical cocaine is favoured by many surgeons for sinonasal surgery due to its superior vasoconstrictive and anesthetic properties. However, historical reports suggesting cocaine […]

Congestive heart failure and comorbidity as determinants of colorectal cancer perioperative outcomes

Abstract Objective There has been an increase in surgical interventions in frailer elderly with concomitant chronic diseases. The purpose of this paper was to evaluate […]

Real-world Safety of Bevacizumab with First-line Combination Chemotherapy in Patients with Metastatic Colorectal Cancer: Population-based Retrospective Cohort Studies in Three Canadian Provinces

Abstract Aims To examine the real-world safety of adding bevacizumab to first-line irinotecan-based chemotherapy for patients with metastatic colorectal cancer (mCRC). Materials and methods Patients diagnosed with CRC in […]

The receipt of information by family physicians about their patient’s emergency department visits: a record linkage study of electronic medical records to health administrative data

Abstract Background Canadians are known to be frequent users of emergency department (ED) care. However, the exchange of information from ED visits to family physicians […]

The effect of frailty on post-operative outcomes and health care expenditures in patients treated with partial nephrectomy

Abstract Objective To examine the effect of frailty on short-term post-operative outcomes and total hospital charges (THCs) in patients with non-metastatic renal cell carcinoma, treated […]

Improving patient well-being in the United States through care coordination interventions informed by social determinants of health

Abstract Health and well-being are promoted when primary care teams partner with patients and provide care coordination to mitigate risks and promote optimal health. Identification […]

Performance of administrative database frailty instruments in predicting clinical outcomes and cost for patients undergoing transcatheter aortic valve implantation: a historical cohort study

Abstract Purpose Frailty instruments may improve prognostic estimates for patients undergoing transcatheter aortic valve implantation (TAVI). Few studies have evaluated and compared the performance of […]

Predicting Provider Workload Using Predicted Patient Risk Score and Social Determinants of Health in Primary Care Setting

Abstract Background Provider burnout due to workload is a significant concern in primary care settings. Workload for primary care providers encompasses both scheduled visit care […]

Evaluating the impact of capitation funding top-up payments in primary care

Abstract Background Capitation payments account for approximately half of core funding for General Practitioner (GP) practices in England, allocated via the Global Sum Allocation (‘Carr-Hill’) […]

Longitudinal costs and health service utilisation associated with primary care reforms in Ontario: a retrospective cohort study protocol

ABSTRACT Introduction Over the last 20 years, the Canadian province of Ontario implemented several new models of primary care focusing on changes to physician remuneration, […]

Influence of socioeconomic status on health outcomes after treatment of spinal metastases

ABSTRACT OBJECTIVE The aim of this study was to investigate the association of home socioeconomic status (SES) with days at home and survival after treatment […]

Impact of frailty on outcomes following percutaneous coronary intervention for acute myocardial infarction: A propensity-score matched analysis of 45,362 pairs

Introduction Percutaneous coronary intervention (PCI) is the cornerstone of rapid revascularization in acute myocardial infarction (AMI) [1]. Patients undergoing PCI frequently present with multiple comorbidities, […]

Social inequalities in COVID-19 death by area-level income in 11.2 million people in Ontario, Canada: patterns over time and the mediating role of vaccination

Abstract Knowledge of patterns in COVID-19 deaths by area-level income over time and the mediating role of vaccination in inequality patterns remains limited. We used […]

The effect of nurse care management on multimorbid patients’ hospital utilization: a comparative-controlled trial and an exploratory cohort study

Abstract Multimorbidity, defined as the presence of two or more chronic conditions in one individual, poses substantial challenges to patients and healthcare systems, yet evidence […]

The value of recovery after spinal cord injury: long-term healthcare costs in relation to home time in a population-based cohort

Abstract BACKGROUND CONTEXT Traumatic spinal cord injury (SCI) is associated with substantial long-term healthcare utilization. While prior studies have quantified costs, few have contextualized expenditures […]

Access to care and outcomes for neuroendocrine tumours: does socioeconomic status matter?

ABSTRACT Introduction Neuroendocrine tumours (nets) are a poorly understood malignancy lacking standardized care. Differences in socioeconomic status (ses) might worsen the effect of non-standardized care. […]

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Analyzing Care Needs for Your Medicare Advantage Enrollees – White Paper

For health plans in the Medicare Advantage space, a strategy for effectively managing the care, quality and risk of members is crucial. This includes understanding […]

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Patient selection based on segmentation and predictive modeling

Patient selection based on segmentation and predictive modeling in the Comprehensive Care for Multimorbid Adults Program (CC-MAP)Presented by:Efrat Shadmi, PhD, RN, Associate Professor at the […]

Similar multimorbidity patterns in primary care patients from two European regions: results of a factor analysis

PLoS One 9:e100375. Aragón Health Sciences Institute, Zaragoza, Spain; Maastricht University, Maastricht, The Netherlands; Department of General Practice, KU Leuven, Belgium. OBJECTIVE: To compare the […]

A retrospective evaluation of the behaviour of groups under out-patient care at a health center

Aten Primaria 21:36-42. Published in Spanish. Escuela Andaluza de Salud Pública de Granada, Granada, Spain OBJECTIVES: To study and analyse the Out-Patient Care Groups (OCGs), […]

Physical health and gender as risk factors for usage of services for mental illness

J Epidemiol Community Health 68:971-978. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada; University of Toronto, Toronto, ON, Canada; St. Michael’s Hospital, Toronto, ON, Canada; […]

Health-related quality of life and multimorbidity in community-dwelling telecare-assisted elders in the Basque Country

Eur J Intern Med 26:169-175. Basque Institute for Healthcare Innovation, Barakaldo, Spain; Osakidetza, Basque Health Service, Erandio, Spain; Osatek S.A., Public Society of the Basque […]

The association between diabetes and breast cancer stage at diagnosis: a population-based study

Breast Cancer ResTreat 150:613-620. Women’s College Research Institute, Women’s College Hospital, Toronto, ON, Canada Women with diabetes have higher breast cancer incidence and mortality. The […]

Cost-minimizing risk adjustment

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 […]

Association of frailty and 1-year postoperative mortality following major elective noncardiac surgery: a population-based cohort study

JAMA Surg. University of Ottawa, Ottawa, ON, Canada; Institute for Clinical Evaluative Sciences, Ottawa, ON, Canada; Ottawa Hospital, Ottawa, ON, Canada; Ottawa Hospital Research Institute, […]

Utilization of clinical tools to understand health-care differences of the Discovery Health population

BMC Health Serv Res 10:A18. Discovery Health, Johannesburg, Gauteng, South Africa INTRODUCTION: Various clinical tools exist that categorize health-care data into homogenous cohorts. The tools […]

Patient-mix differences among ambulatory providers and their effects on utilization and payments for Maryland Medicaid users

Med Care 31:1119-1137. Policy and Health Statistics Administration, Maryland Department of Health and Mental Hygiene, Baltimore, MD, USA Characteristics of the usual source of care […]

Clinical features of high-risk older persons identified by predictive modeling

Dis Manag 9:56-62. Johns Hopkins HealthCare, Glen Burnie, MD, USA The objective of this study was to describe the clinical features of older persons identified […]

Validation of ACG Case-mix for equitable resource allocation in Swedish primary health care

BMC Public Health 9:347. Blekinge Centre of Competence, Karlskrona, Sweden BACKGROUND: Adequate resource allocation is an important factor to ensure equity in health care. Previous […]

Review: health care utilization and costs of elderly persons with multiple chronic conditions

Med Care Res Rev 68:387-420. University Medical Center, Hamburg-Eppendorf, Germany This systematic literature review identified and summarized 35 studies that investigated the relationship between multiple […]

How health status affects progress and performance in school: a population-based study

Can J Public Health 99:344-349. Manitoba Centre for Health Policy and Department of Community Health Sciences, Faculty of Medicine, University of Manitoba, Winnipeg, MB, Canada […]

Are cervical cancer screening rates different for women with schizophrenia? A Manitoba population-based study

Schizophr Res 113:101-106. Department of Community Health Sciences, University of Manitoba, Manitoba Centre for Health Policy, Winnipeg, MB, Canada CONTEXT: Barriers to cervical cancer screening […]

Clinical categories of patients and encounter rates in primary health care – a three-year study in defined populations

BMC Public Health 6:35. Center for Family and Community Medicine, Neurotec Department, Karolinska Institute, Stockholm, Sweden BACKGROUND: The objective was to estimate the proportion of […]

Developing and evaluating performance measures for ambulatory care quality: a preliminary report of the DEMPAQ project

Jt Comm J Qual Improv 19:552-565. Department of Health Policy and Management, Harvard School of Public Health, Boston, MA, USA Because of the focus on […]

Adjusting for risk selection in state health insurance exchanges will be critically important and feasible, but not easy

Health Aff 31:306-315. Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA The Affordable Care Act calls for the establishment of state-level health insurance […]

Abdominal fat from spine dual-energy x-ray absorptiometry and risk for subsequent diabetes

J Clin Endocrinol Metab 95:3272-3276. University of Manitoba, Winnipeg, MB, Canada CONTEXT: Abdominal obesity is a major risk factor for diabetes. Dual-energy x-ray absorptiometry (DXA) […]

Reducing the burden of morbidity and medical utilization of older patients by outpatient geriatric services: Implications to primary health-care settings

Geriatr Gerontol Int 12:612-621. Department of Medical Affairs and Planning, National Yang Ming University, Taipei, Taiwan. AIM: That geriatric evaluation and management (GEM) is associated […]

Predicting resource utilization in a Veterans Health Administration primary care population: comparison of methods based on diagnoses and medications

Med Care 42:123-128. Medical Service, Iowa City VA Medical Center, Iowa City, IA, USA BACKGROUND: Valid methods of predicting resource utilization in primary care populations […]

Predictors of children’s healthcare use: the value of child versus parental perspectives on healthcare needs

Med Care 42:232-238. Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA OBJECTIVE: The objective of this study […]

Comparing self-reported health status and diagnosis-based risk adjustment to predict 1- and 2 to 5-year mortality

Health Serv Res 42:629-643. Houston Center for Quality of Care and Utilization Studies, Health Services Research and Development Service, Michael E. DeBakey VA Medical Center, […]

Does the pharmacy expenditure of patients always correspond with their morbidity burden? Exploring new approaches in the interpretation of pharmacy expenditure

BMC Public Health 10:244. Aragon Health Sciences Institute, Zaragoza, Spain BACKGROUND: The computerisation of primary health care (PHC) records offers the opportunity to focus on […]

Influenza vaccination and all-cause mortality in community-dwelling elderly in Ontario, Canada, a cohort study

Vaccine 29:240-246. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada The objective of this study was to evaluate the effectiveness of influenza vaccines in reducing […]

Estimating influenza vaccine effectiveness in community-dwelling elderly patients using the instrumental variable analysis method

Arch Intern Med 172:484-491. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada BACKGROUND: Estimates of influenza vaccine effectiveness in elderly individuals are largely from observational […]

Short-run associations between medical care expenditures and adherence to clinical practice guideline-based measures for diabetes

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 […]