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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 […]

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.

Post-acute pathways among hip fracture patients: a system-level analysis

Background: Hip fractures among older adults are one of the leading causes of hospitalization and result in significant morbidity, mortality, and health care use. Guidelines […]

Examination of Health System Resources and Costs Associated With Transitioning Cancer Survivors to Primary Care: A Propensity-Score–Matched Cohort Study

Background: Transitioning low-risk cancer survivors back to their primary care provider (PCP) has been shown to be safe but the effect on health system resources […]

Using EMRALD to assess baseline body mass index among children living within and outside communities participating in the Ontario, Canada Healthy Kids Community Challenge

Abstract   Objectives The Healthy Kids Community Challenge is a large-scale, centrally-coordinated, community-based intervention in Ontario, Canada that promotes healthy behaviours towards improving healthy weights […]

The Association Between Continuity of Primary Care and Preventive Cancer Screening in Women With Intellectual Disability

Abstract Women with intellectual disability have low screening rates for breast and cervical cancer. This population-based cohort study examined the association between the level of […]

The Lifestyle Medicine Physician’s Case to Self-Insured Employers: A Business Model for Physicians, a Bargain for Companies

Abstract   A majority of Americans have health care insurance through their employers, the cost for which is rising at an alarming rate. Unfortunately, higher […]

Predicting Short-Term Outcomes After Radical Cystectomy Based on Frailty

Abstract Objective To evaluate the impact of frailty on adverse perioperative outcomes in patients treated with radical cystectomy for bladder cancer. Material and Methods We […]

Production of physician services under fee‐for‐service and blended fee‐for‐service: Evidence from Ontario, Canada

Abstract We examine family physicians’ responses to financial incentives for medical services in Ontario, Canada. We use administrative data covering 2003–2008, a period during which […]

Patient frailty predicts worse perioperative outcomes and higher cost after radical cystectomy

Abstract Background Relatively few studies investigated the importance of frailty in radical cystectomy (RC) patients. We tested the ability of frailty, using the Johns Hopkins […]

Patient-reported symptoms following diagnosis in esophagus cancer patients treated with palliative intent

Summary The majority of patients with esophagus cancer have advanced-stage disease without curative options. For these patients, treatment is focused on improving symptoms and quality […]

Peri‐complication diagnosis of hepatitis C infection: Risk factors and trends over time

Abstract Background & Aims Hepatitis C virus (HCV) is a common and treatable cause of cirrhosis and its complications, yet many chronically infected individuals remain […]

Using Health Plan Authorization Data to Predict Hospitalizations and Readmissions in a Combined Commercial and Medicaid Population

Abstract Health plans develop predictive models to predict key clinical events (eg, admissions, readmissions, emergency department visits). The authors developed predictive models of admissions and […]

Association between socioeconomic deprivation and surgical complications in adults undergoing ankle fracture fixation: a population-based analysis

Abstract Background Few studies have investigated the outcomes of surgical fracture care among socially deprived patients despite the increased incidence of fractures and the inequality […]

Breast cancer diagnosis and treatment wait times in specialized diagnostic units compared with usual care: a population-based study

Abstract Background Breast assessment sites (bass) were developed to provide expedited and coordinated care for patients being evaluated for breast cancer (bca) in Ontario. We […]

Epidemiology and Impact of Spinal Cord Injury in the Elderly: Results of a Fifteen-Year Population-Based Cohort Study

Abstract Objective Although experience suggests a shift in the epidemiology of spinal cord injury (SCI) toward an older demographic, population studies are lacking. We aimed […]

Systematic review on the instruments used for measuring the association of the level of multimorbidity and clinically important outcomes

ABSTRACT Objectives There are multiple instruments for measuring multimorbidity. The main objective of this systematic review was to provide a list of instruments that are […]

Inequities in access to primary care among opioid recipients in Ontario, Canada: A population-based cohort study

Abstract Background Stigma and high-care needs can present barriers to the provision of high-quality primary care for people with opioid use disorder (OUD) and those […]

Prevalence, determinants, and outcomes of SARS-COV-2 infection among cancer patients. A population-based study in northern Italy

Abstract Background It is well established that cancer patients infected with SARSCoV-2 are at particularly elevated risk of adverse outcomes, but the comparison of SARS-CoV-2 […]

Outcomes after the regionalization of care for high-grade endometrial cancers: a population-based study

Abstract Background In June 2013, Ontario Health (Cancer Care Ontario), the agency responsible for advancing cancer care in Ontario, Canada, published practice guidelines recommending that […]

Pre-operative wait times in high-grade non-endometrioid endometrial cancer: Do surgical delays impact patient survival?

Abstract Objective Practice guidelines advocating for regionalization of endometrial cancer surgery to gynecologic oncologists practicing in designated gynecologic oncology centres were published in Ontario in […]

Patterns Of Multimorbidity Of Patients In Geriatric Care – A Register-Based Cohort Study In Sweden

Abstract Background Patients in geriatric care display a high degree of multimorbidity. We aimed to explore and visualise various patterns of multimorbidity in a person-oriented […]

Impact of Social Needs in Electronic Health Records and Claims on Health Care Utilization and Costs Risk-Adjustment Models Within Medicaid Population

Abstract Patients enrolled in Medicaid have significantly higher social needs (SNs) than others. Using claims and electronic health records (EHRs) data, managed care organizations (MCOs) […]

Creating a Cost-map From Claims Data to Guide Improvement Actions for Children With Asthma

Abstract Purpose It is difficult to reduce cost and improve quality without knowledge pertaining to the distribution of expenses in the population in question. We […]

Does End-of-Life Care Differ for Anglophones and Francophones? A Retrospective Cohort Study of Decedents in Ontario, Canada

Abstract Background: Approximately half of decedents in Ontario, Canada, receive some palliative care, but little is known about the influence of language on the nature of […]

Identifying High Risk COVID-19 Patients Q&A

During the current health care crisis, health systems, health plans and governments urgently need to identify their most vulnerable patient populations. The Johns Hopkins ACG […]

Predictive Modeling Part I – An Introduction to the Basics

This webinar is an introduction to the basics of predictive modelling and provides an overview of the predictive models that are available within the Johns […]

Comparative effectiveness of olmesartan and other angiotensin receptor blockers in diabetes mellitus: retrospective cohort study

Hypertension 63:977-983. University of Alberta, Edmonton, AB, Canada Olmesartan has been linked with increased risk of cardiovascular mortality and sprue-like enteropathy. We compared outcomes between […]

Variations in primary care physician referral rates

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 […]

Increased suicidal activity following major trauma: a population-based study

J Trauma Acute Care Surg 76:180-184. University of Manitoba, Winnipeg, MB, Canada; University of California San Diego, San Diego, CA, USA; University of Regina, Regina, […]

Multimorbidity in risk stratification tools to predict negative outcomes in adult population

Eur J Intern Med 26:182-189. Basque Institute for Healthcare Innovation, Barakaldo, Spain; Università Cattolica del Sacro Cuore, Rome, Italy; Agenzia Italiana del Farmaco (AIFA), Rome, […]

Direct medical costs and source of cost differences across the spectrum of cognitive decline: A population-based study

Alzheimers Dement. Mayo Clinic, Rochester, MN, USA; K Long Health Economics Consulting LLC, St. Paul, MN, USA; AbbVie, North Chicago, IL, USA BACKGROUND: Objective cost […]

Physicians and prepaid group practices

Health Aff W4:76-78. Commonwealth Fund, New York, NY, USA Prepaid group practices (PGPs) are complex organizations that directly combine prepayment for health care with a […]

Impact of case mix severity on quality improvement in a patient-centered medical home (PCMH) in the Maryland Multi-Payor Program

J Am Board Fam Med 29:116-125. University of Maryland School of Medicine, Baltimore, MD, USA; University of Maryland School of Pharmacy, Baltimore, MD, USA; Department […]

A population-based study comparing patterns of care delivery on the quality of care for persons living with HIV in Ontario

BMJ Open 5:e007428. Bruyère Research Institute, Ottawa, ON, Canada; University of Ottawa, Ottawa, ON, Canada; Ottawa Hospital Research Institute, Ottawa, ON, Canada; Institute for Clinical […]

Trends and determinants of prescription drug use during pregnancy and postpartum in British Columbia, 2002-2011: a population-based cohort study

PLoS One 10:e0128312. University of British Columbia, Vancouver, BC, Canada PURPOSE: To describe trends, patterns, and determinants of prescription drug use during pregnancy and postpartum. […]

The use of long-acting beta2- agonists as monotherapy in children and adults

J Popul Ther Clin Pharmacol 20:e1. University of British Columbia, Vancouver, BC, Canada; St. Paul’s Hospital, Vancouver, BC, Canada BACKGROUND: In asthma, it is recommended […]

Selection bias from requiring patients to give consent to examine data for health services research

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 […]

Adjusted Clinical Groups: predictive accuracy for Medicaid enrollees in three states

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 […]

The effect of socioeconomic status on bone density testing in a public health-care system

Osteoporos Int 18:153-158. Radiology, University of Manitoba, Winnipeg, MB, Canada INTRODUCTION AND HYPOTHESIS: An inverse relationship exists between socio-economic status (SES) and osteoporotic fractures. In […]

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 […]

Prospects of Adjusted Clinical Groups (ACG’s) in capitated payment risk adjustment

Rev Esp Salud Publica 80:55-65. Published in Spanish. Dirección de Planificación y Desarrollo Organizativo, Badalona, Serveis Assistencials, Badalona, Barcelona, Spain BACKGROUND: Most patient classification systems […]

Trend and variation of prescription drug cost in the veterans health-care system

Health Serv Manage Res 21:14-22. Department of Veterans Affairs Healthcare Network Upstate New York, Albany, NY, USA Using descriptive statistics, this paper revealed that the […]

Validating the Adjusted Clinical Groups [ACG] case-mix system in a Spanish population setting: a multicenter study

Gac Sanit 23:228-231. Published in Spanish. Dirección de Planificación, Badalona Servicios Asistenciales, S.A., Badalona, Barcelona, España. PURPOSE: To validate the Johns Hopkins ACG case-mix system […]

Co-morbidity and health care utilisation five years prior to diagnosis for depression

A register-based study in a Swedish population. BMC Public Health 11:552. Department of Medical and Health Sciences, Family Medicine, Linköping University, Linköping, Sweden BACKGROUND: Depressive […]

Modeling factors influencing the demand for emergency department services in Ontario: a comparison of methods

BMC Emerg Med 11:13. Department of Family and Community Medicine, University of Toronto, Toronto, ON, Canada BACKGROUND: Emergency departments are medical treatment facilities, designed to […]

Clinical outcomes after bariatric surgery: a five-year matched cohort analysis in seven US states

Obes Surg 22:749-763. Center for Health Care Research and Policy, MetroHealth Medical Center/Case Western Reserve University, Cleveland, OH, USA BACKGROUND: Bariatric surgery is the most […]

Treatment profiles and costs of patients with chronic pain in the population setting

Clinicoecon Outcomes Res 4:39-47. Dirección de Planificación, Badalona Serveis Assistencials, Barcelona, Spain BACKGROUND: The purpose of this study was to gather information about analgesic drug […]

Multi-institutional sharing of electronic health record data to assess childhood obesity

PLoS One 8:e66192. Children’s Hospital of Philadelphia, Philadelphia, PA, USA; Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA OBJECTIVE: To evaluate the validity […]

Comorbidity in patients with chronic obstructive pulmonary disease in family practice: a cross sectional study

BMC Fam Pract 14:11. Multiprofessional Education Unit for Family and Community Care (South-east), Madrid, Spain BACKGROUND: Chronic obstructive pulmonary disease (COPD) is frequent and often […]