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MEDS-AD Waiver (MTM) Program final report

Prepared for Florida Medicaid. Tallahassee, FL, USA: College of Medicine, Florida State University. Florida State University, Tallahassee, FL, USA This report summarizes the final findings […]

Change in functional outcomes during inpatient rehabilitation for patients with hypoxic-ischemic brain injury

Arch Phys Med Rehabil 96:e18. Toronto Rehabilitation Institute, Toronto, ON, Canada Objective(s): To investigate determinants of change in functional outcomes during inpatient rehabilitation (IR) among […]

Performance of an ambulatory case-mix measurement in primary care in Spain: Ambulatory Care Groups (ACGs)

Eur J Public Health 9:27-35. Unitat d’Investigació Centre del Institut Catalá de la Salut, Barcelona, Spain BACKGROUND: Patient classification systems based on the defining of […]

ACG use in Veterans Administration in Taiwan: final report

Taipei, Taiwan: Veterans General Hospital Taipei. Published in Chinese. Department of Medical Affairs and Planning, Taipei Veterans General Hospital, Taipei City, Taiwan, ROC The goal […]

Sex differences in health status, health care use and quality of care: a population-based analysis for Manitoba’s regional health authorities

Winnipeg, MB, Canada: Manitoba Centre for Health Policy. Manitoba Centre for Health Policy, Department of Community Health Sciences, Faculty of Medicine, University of Manitoba, Winnipeg, […]

A comparison of alternative approaches to risk measurement

Final report, grant number 93-G07, Physician Payment Review Commission. Minneapolis, MN, USA: Park Nicollet Medical Foundation. Park Nicollet Medical Foundation, Minneapolis, MN, USA Under health […]

ACGs: ambulatory care groupings for case-mix categorization

Final report for grant #HS05505, National Center for Health Care Research/Health Care Technology Assessment. Baltimore, MD, USA: Johns Hopkins University. Johns Hopkins University, Baltimore, MD, […]

CYDL Project One summary report: experiences of Albertan youth 2008/2009

Child and Youth Data Laboratory. Edmonton, AB, Canada: Centre for Child, Family and Community Research. Site also has videos of presentations of report data. Centre […]

A study of population needs-based funding applied to health care and physician services in British Colulmbia

Vancouver, BC, Canada: University of British Columbia (masters thesis). University of British Columbia, Vancouver, BC, Canada The BC Ministry of Health has developed a Population […]

Evaluation of the Medicaid Value Program: health supports for consumers with chronic conditions

Hamilton, NJ, USA: Center for Health Care Strategies. Center for Health Care Strategies, Hamilton, NJ, USA The Center for Health Care Strategies’ (CHCS) Medicaid Value […]

Chapter 5: Antihypertensive adherence and drug class among Asian Pacific Americans

In: Bateman WB – Abesamis-Mendoza J – Ho-Asjoe H – ed. Praeger handbook of Asian-American health: taking notice and taking action. Santa Barbara CA USA: […]

Adherence with lipid-lowering, antihypertensive, and diabetes medications

Am J Pharm Benefits 3:165-171. Hawaii Medical Service Association, Honolulu, HI, USA OBJECTIVES: To investigate the combinations of medications patients were taking, the study examined […]

Adaptation of the categories Johns-Hopkins ACG Case-Mix System in primary healthcare: a longitudinal, retrospective claim database study

WebmedCentral ECONOMICS OF MEDICINE 2:WMC001657. Directorate of Planning, Badalona Serveis Assistencials SA, Badalona, Spain BACKGROUND: To determine the adaptation capacitating of categories case-mix adjustment (Adjusted […]

Comparing the costs and use of services in TRICARE Prime with employer sponsored insurance

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

The trend of prevalence of multimorbidity and needs of out-patient health care services in rural and urban areas in Klaipeda region

Health Sci 23:173-178. Published in Lithuanian. The aim of the study: to evaluate multimorbidity dynamics, and needs of out-patient health care services in rural and […]

Predicting the Cost of Health Care Services

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. […]

Data Validation

DST Health Solutions Data Validation Sokchay Chiv

Monday(C1)-Persistent High Users Characteristics and Identification-Chang

Persistent High Users Characteristics and Identification-Hsien-Yen Chang PhD 

Monday(P4)-The association between expenditures and quality in type 2 diabetes mellitus care

The association between expenditures and quality in type 2 diabetes mellitus care  Troels Kristensena, Msc, PhD, Kim Rose-Olsena, Msc, PhD  Charlotte Ejersted, MD., PhD  Anders […]

Research and publications utilizing the ACG System

Chris Forrest, MD, PhD, Professor of Pediatrics and Health Care Management, University of Pennsylvania and Children’s Hospital of Philadelphia, and ACG System co-developer discusses how […]

Population Health Management through Care Coordination and Interventions

Population health management at JHHC represents a comprehensive approach to health care considering the distribution of health outcomes within a population, and the health determinants […]

Outcomes of patients with chronic obstructive pulmonary disease diagnosed with or without pulmonary function testing

Background: A small number of people with chronic obstructive pulmonary disease (COPD) receive pulmonary function testing around the time of diagnosis. Because omitting testing increases […]

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 […]

A Canadian Population-Based Cohort to the Study Cost and Burden of Surgically Resected Hidradenitis Suppurativa

Abstract Background: Hidradenitis suppurativa (HS) is a chronic debilitating disease with long-lasting comorbidities that impose direct and indirect costs on the health care system. However, […]

Medicaid trends in prescription opioid and non-opioid use by HIV status

Abstract   Background Pain is more common among people living with HIV (PLWH) than their counterparts; however, it is unclear whether analgesic use differs by […]

Supporting general practice to make timely decisions for better health care: a population health approach

Abstract Primary Health Networks (PHNs) are tasked to enhance the efficiency and effectiveness of general practice. Gold Coast Primary Health Network (GCPHN) has been collecting […]

Is Post-discharge Rehabilitation Timing Associated with 90-Day Readmission in Primary Total Joint Arthroplasty?

Abstract Background Physical therapy (PT) is an accepted standard of care after total joint arthroplasty (TJA) and essential to maximizing joint functionality and minimizing complications […]

Prediction of 30-day pediatric unplanned hospitalizations using the Johns Hopkins Adjusted Clinical Groups risk adjustment system

Abstract Background The Johns Hopkins ACG System is widely used to predict patient healthcare service use and costs. Most applications have focused on adult populations. […]

Impact of comprehensive care on health care use among a cohort of marginalized people living with hepatitis C in Toronto, Canada

Abstract Background The majority of new hepatitis C (HCV) cases occur among people who inject drugs. In recent years, multidisciplinary models of HCV treatment have […]

Association of Follow-Up Care With Long-Term Death and Subsequent Hospitalization in Patients With Atrial Fibrillation Who Receive Emergency Care in the Province of Ontario

Abstract Background Currently, 11% of patients seen in the emergency department for atrial fibrillation die within 1 year of the visit. Our objective was to […]

Measuring multimorbidity beyond counting diseases: systematic review of community and population studies and guide to index choice

Abstract Objectives To identify and summarise existing indices for measuring multimorbidity beyond disease counts, to establish which indices include mental health comorbidities or outcomes, and […]

Health characteristics of reproductive-aged autistic women in Ontario: A population-based, cross-sectional study

Abstract While an increasing number of girls and women are being identified with autism, we know little about the health of reproductive-aged autistic women. Our […]

The effect of frailty on postoperative readmissions, morbidity, and mortality in endometrial Cancer surgery

Abstract Objectives To determine the impact of frailty on postoperative readmission, morbidity, and mortality among patients undergoing surgery for endometrial cancer. Methods Patients with endometrial […]

Association between mental health comorbidity and health outcomes in type 2 diabetes mellitus patients

Abstract Background Type 2 diabetes mellitus (T2D) is often accompanied by chronic diseases, including mental health problems. We aimed at studying mental health comorbidity prevalence […]

Analysis of modifiable and nonmodifiable risk factors in patients undergoing pituitary surgery

Abstract OBJECTIVE Pituitary adenomas (PAs) are among the most common intracranial tumors. Understanding the clinical effects of various modifiable risk factors (MRFs) and nonmodifiable risk […]

Health care service use and costs for a cohort of high-needs elderly diabetic patients

Abstract Aims To describe the impact of diabetes comorbidities on the health care services use and costs of a cohort of elderly patients with diabetes […]

Management and outcomes of patients with chronic obstructive lung disease and lung cancer in a public healthcare system

Abstract Hypothesis There is limited data on the care and outcomes of individuals with both chronic obstructive pulmonary disease (COPD) and lung cancer, particularly in […]

Guideline interval: A new time interval in the diagnostic pathway for symptomatic cancer

Abstract Background: A standard measure of the cancer diagnostic pathway, diagnostic interval, is the time from “first presentation of cancer” to diagnosis. Cancer presentation may be […]

Impact of Frailty on Clinical and Financial Outcomes Following Minor Lower Extremity Amputation: A Nationwide Analysis

Abstract Objective Frailty has been shown to portend worse outcomes in surgical patients. Our goal was to identify the impact of frailty on outcomes and […]

The clinical impact of frailty on the postoperative outcomes of patients undergoing gastrectomy for gastric cancer: a propensity-score matched database study

Abstract Background Frailty aggregates a composite of geriatric and elderly features that is classified into a singular syndrome; literature thus far has proven its influence […]

Outcomes of SARS-CoV-2 infection in cancer versus non-cancer-patients: A population-based study in northeastern Italy

Abstract Introduction This study assesses the risk of infection and clinical outcomes in a large consecutive population of cancer and non-cancer patients tested for SARS-CoV-2 […]

Survival effects of time to surgery for Stage I lung cancer: A population-based study

Abstract Objectives To examine the impact of time to surgery (TTS) on survival among patients with stage I non-small cell lung cancer (NSCLC). Methods All […]

Development and validation of predictive models for unplanned hospitalization in the Basque Country: analyzing the variability of non-deterministic algorithms

Abstract Background The progressive ageing in developed countries entails an increase in multimorbidity. Population-wide predictive models for adverse health outcomes are crucial to address these […]

Improving Prediction of Risk of Admission to Long-Term Care or Mortality Among Home Care Users With IDD

ABSTRACT Background Frailty is an established predictor of admission into long-term care (LTC) and mortality in the elderly population. Assessment of frailty among adults with […]

Case Finding and Population Profiling

This webinar focuses on a project undertaken in Slough Clinical Commissioning Group where information from the ACG System was used to profile the population of […]

Leveraging Prescription Data to Derive Future Costs and Predictors Regarding Opioid Abuse Patients

Presented by: David Bodycombe, ScD, MSc

Director ACG System Research

This Webinar describes his study, which created and assessed three measures of high-risk opioid use, presents results supporting the utility of these measures, and describes how the resulting measures are being deployed within the ACG System. Learn More.

Risk prediction models to predict emergency hospital admission in community-dwelling adults: a systematic review

Med Care 52:751-756. Centre for Primary Care Research, Royal College of Surgeons in Ireland, Dublin, Ireland BACKGROUND: Risk prediction models have been developed to identify […]

Frequent attenders in general practice and immigrant status in Norway: A nationwide cross-sectional study

Scand J Prim Health Care 32:232-240. Department of Global Public Health and Primary Care, University of Bergen, Norway OBJECTIVE: To compare the likelihood of being […]

Is use of fall risk-increasing drugs in an elderly population associated with an increased risk of hip fracture, after adjustment for multimorbidity level: a cohort study

BMC Geriatr 14:131. Department of Patient Safety, Blekinge County Council, Karlskrona, Sweden BACKGROUND: Risk factors for hip fracture are well studied because of the negative […]

How do immigrants use primary health care services? A register-based study in Norway

Eur J Public Health 25:72-78. University of Bergen, Norway; Carlos III Health Institute, Madrid, Spain; Aragón Health Sciences Institute (IACS), Zaragoza, Spain; University of Zaragoza, […]

Applying a risk-adjustment framework to primary care: can we improve on existing measures?

Ann Fam Med 1:44-51. Center for Health Quality, Outcomes and Economic Research, VAMC, Bedford, MA, USA Outcome-based performance measurement and prospective payment are common features […]

Analysis of the influence of the process of care in primary health care on avoidable hospitalizations for heart failure

Aten Primaria 48:102-109. Published in Spanish. Hospital Universitario Infanta Sofía, Madrid, España; Unidad Docente Multiprofesional de Atención Familiar y Comunitaria; Madrid, España; Unidad Sistemas de […]

Multimorbidity and its patterns according to immigrant origin. A nationwide register-based study in Norway

PLoS One 10:e0145233. University of Bergen, Bergen, Norway; Norwegian Centre for Minority Health Research, Oslo, Norway; Aragón Health Sciences Institute (IACS), Zaragoza, Spain; Carlos III […]

Impact of language barriers on complications and mortality among immigrants with diabetes: a population-based cohort study

Diabetes Care 38:189-196. University Health Network, Toronto, ON, Canada; Mount Sinai Hospital, Toronto, ON, Canada; Institute for Clinical Evaluative Sciences, Toronto, ON, Canada; St. Michael’s […]

Association between age, gender and multimorbidity level and receiving home health care: a population-based Swedish study

BMC Res Notes 8:714. Lyckeby Primary Healthcare Centre and Blekinge Centre of Competence, Lyckeby, Sweden; University of Southern Denmark, Odense, Denmark BACKGROUND: Home health care […]

Comparing accuracy of risk-adjustment methodologies used in economic profiling of physicians

Inquiry 41:218-231. Department of Health Management and Policy, School of Public Health, University of Michigan, USA This paper examines the relative accuracy of risk-adjustment methodologies […]

Use of a shared medical record with secure messaging by older patients with diabetes

Diabetes Care 33:2314-2319. Department of Medicine, University of Washington, Seattle, WA, USA OBJECTIVE: Evaluate use of a web-based shared medical record (SMR) between older patients […]

Do we need more physicians?

Health Aff W4:67-69. Center for the Evaluative Clinical Sciences, Dartmouth Medical School, Hanover, NH, USA A reexamination of physician productivity can resolve the current workforce […]

Impact of discontinuity in health insurance on resource utilization

BMC Health Serv Res 10:195. Division of Health Care Policy & Research, Mayo Clinic, Rochester, MN, US BACKGROUND: This study sought to describe the incidence […]

Comparing apples with apples in clinical populations: applications of the Adjusted Clinical Group system in British Columbia

Healthc Manage Forum 15:11-16. Department of Healthcare and Epidemiology, University of British Columbia, Vancouver, BC, Canada This article reviews the Adjusted Clinical Group Case-Mix System […]

Comparison of alternative risk adjustment measures for predictive modeling: high risk patient case finding using Taiwan’s National Health Insurance claims

BMC Health Serv Res 10:343. Department of Health Policy & Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA BACKGROUND: Predictive modeling […]

Evaluation of prescriber responses to pharmacist recommendations communicated by fax in a medication therapy management program (MTMP)

J Manag Care Pharm 17:345-354. Center for Health Outcomes and PharmacoEconomic Research, University of Arizona, Tucson, AZ, USA BACKGROUND: As defined by the Medicare Prescription […]

Morbidity trajectories as predictors of utilization: multi-year disease patterns in Taiwan’s national health insurance program

Med Care 49:918-923. Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA BACKGROUND: Little is known about […]

Age difference explains gender difference in cardiac intervention rates after acute myocardial infarction

Healthc Policy 6:88-103. Manitoba Centre for Health Policy, University of Manitoba, Winnipeg, MB, Canada Many investigators have reported higher rates of cardiac procedures for males […]

Characteristics and risk factors associated with high-cost Medicaid recipients

Manag Care Interface 17:20-27. College of Pharmacy, University of Cincinnati, Cincinnati, OH, USA Characteristics and risk factors of fee-for-service Medicaid patients (age 65 yr) with […]

Variations in health services utilization by primary care patients

Health Serv Manage Res 15:116-125. Departamento de Estumatologia, Facultad de Odontologia, Universidad de Granada, Campus Univeristario de Cartuja, Granada, Spain This study analyses how both […]

The risk-adjustment debate

N Engl J Med 339:1952-1956. Risk adjustment refers to the adjustment of payments to health plans (or to doctors) to reflect more accurately the actual […]

Development and validation of a psychiatric case-mix system

Med Care 44:568-580. VA Puget Sound Health Care System, and the Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, USA BACKGROUND: Although […]

Effect of risk adjustment method on comparisons of health care utilization between complementary and alternative medicine users and nonusers

J Altern Complement Med 19:250-256. Saint Luke’s Health System, Boise, ID, USA OBJECTIVES: Complementary and alternative medicine (CAM) providers are becoming more integrated into the […]

Obesity and respiratory hospitalizations during influenza seasons in Ontario, Canada: a cohort study

Clin Infect Dis 53:413-421. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada BACKGROUND: Previous studies suggest that obesity may be a risk factor for complications […]

Capitation adjustment for pediatric populations

Pediatrics 98:10-17. Institute for Research and Education, HealthSystem Minnesota, Minneapolis, MN, USA OBJECTIVE: The objective of this study is to assess the predictive performance of […]

Risk adjustment using automated ambulatory pharmacy data: the RxRisk model

Med Care 41:84-99. Center for Health Studies, Group Health Cooperative, Seattle, WA, USA OBJECTIVES: Develop and estimate the RxRisk model, a risk assessment instrument that […]

Using propensity scores subclassification to estimate effects of longitudinal treatments: an example using a new diabetes medication

Med Care 45:S149. Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA BACKGROUND: When using observational data to compare the effectiveness of […]

Relationship among the degree of control of arterial hypertension, comorbidity and costs in individuals over age 30 during 2006

Rev Esp Salud Publica 82:315-322. Published in Spanish. Dirección de Planificación, Badalona Serveis Assistencials SA, Badalona, Barcelona, Spain BACKGROUND: Arterial hypertension is one of the […]

Patterns and predictors of restrictive health care service use by youths with bipolar disorder

Adm Policy Ment Health 37:379-387. Health Services Research Department, Institute of Psychiatry, King’s College London, London, UK Patterns of behavioral health service utilization were examined […]

Comparison of inhaled long-acting beta-agonist and anticholinergic effectiveness in older patients with chronic obstructive pulmonary disease: a cohort study

Ann Intern Med 154:583-592. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada. BACKGROUND: Chronic obstructive pulmonary disease (COPD), a largely preventable and manageable respiratory condition, […]

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 […]

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