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Documents

Predictive modeling of total healthcare costs using pharmacy claims data: a comparison of alternative econometric cost modeling techniques

Med Care 43:1065-1072. Caremark, Hunt Valley, MD, USA OBJECTIVE: We sought to evaluate several statistical modeling approaches in predicting prospective total annual health costs (medical […]

The mortality risk score and the ADG score: two points-based scoring systems for the Johns Hopkins aggregated diagnosis groups to predict mortality in a general adult population cohort in Ontario, Canada

Med Care 49:940-947. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada BACKGROUND: Logistic regression models that incorporated age, sex, and indicator variables for the Johns […]

Association of antiepileptic drugs with nontraumatic fractures: a population-based analysis

Arch Neurol 68:107-112. Department of Clinical Neurosciences, University of Calgary, Foothills Hospital, Calgary, AB, Canada OBJECTIVE: To explore the relationship between antiepileptic drug (AED) use […]

The importance of continuity of care in the likelihood of future hospitalization: is site of care equivalent to a primary clinician?

Am J Public Health 88:1539-1541. Department of Family Medicine, Medical University of South Carolina, Charleston, SC, USA OBJECTIVES: This study examined the effect of continuity […]

Health of Medicare Advantage plan enrollees at 1 year after Hurricane Katrina

Am J Manag Care 15:13-22. Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA OBJECTIVE: To assess the effects of Hurricane Katrina on mortality, […]

Chiropractic use by urban and rural residents with insurance coverage

J Rural Health 25:253-258. Department of Health Services, University of Washington, Seattle, WA, USA PURPOSE: To describe the use of chiropractic care by urban and […]

Case-mix and variation in specialist referrals in general practice

Br J Gen Pract 55:529-533. University College London Hospital NHS Trust, London, UK BACKGROUND: The potential of a comprehensive measure of patient morbidity to explain […]

US primary care delivery after the Health Center Growth Initiative: comparison of health centers, hospital outpatient departments, and physicians’ offices

J Ambul Care Manage 35:60-74. Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA We compared patient management […]

Depression and use of health care services in patients with advanced cancer

Can Fam Physician 59:e168-e174. University Health Network, Toronto, ON, Canada OBJECTIVE: To examine whether depression in patients with advanced cancer is associated with increased rates […]

Future complexity of care tier affected by depression outcomes

J Prim Care Community Health 5:30-35. Mayo Clinic, Rochester, MN, USA. BACKGROUND: The inclusion of mental health issues in the evaluation of multimorbidity generally has […]

Modelling the ability of risk adjusters to reduce adverse selection in managed care

Appl Health Econ Health Policy 3:107-114. Stanford Prevention Research Center, Stanford University Medical School, Stanford, CA, USA Population-based risk adjustment, as applied to reimbursement in […]

Antihypertensive adherence and drug class among Asian Pacific Americans

Ethn Health 12:265-281. Hawaii Medical Service Association, Honolulu, HI, USA OBJECTIVE: Research on adherence has emphasized the need to consider patient ethnicity when developing adherence […]

Use and costs of care in retail clinics versus traditional care sites

Health Aff 27:1283-1292. HealthPartners in Minneapolis, MN, USA Erratum in Health Aff (Millwood). 2008 Nov-Dec;27(6):1751. Retail clinics have generated much interest, promising convenient, lower-cost service […]

Assessing comorbidity using claims data: an overview

Med Care 40:IV-26-IV-35. Health Services and Economics Branch, Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD, USA Comorbidity, […]

Pharmacy- and diagnosis-based risk adjustment for children with Medicaid

Med Care 43:1155-1159. Center for Child and Adolescent Health Policy, MassGeneral Hospital for Children, Department of Pediatrics, Harvard Medical School, Boston, MA, USA BACKGROUND: Risk […]

The influence of incidental abdominal aortic aneurysm monitoring on patient outcomes

J Vasc Surg 54:1290-1297.e2. Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada BACKGROUND: Incidental abdominal aortic aneurysms (AAAs) are identified when the abdomen is […]

Population based study of long-term rates of surgery for urinary incontinence after radical prostatectomy for prostate cancer

J Urol 188:502-506. Division of Urology, Sunnybrook Health Sciences Centre, Sunnybrook Research Institute, Toronto, ON, Canada PURPOSE: Urinary incontinence can be a significant complication of […]

Prescribing of psychotropic medications to the elderly population of a Canadian province: a retrospective study using administrative databases

PeerJ 1:e168. Faculty of Pharmacy, University of Manitoba , Winnipeg, MB, Canada BACKGROUND. Psychotropic medications, in particular second-generation antipsychotics (SGAs) and benzodiazepines, have been associated […]

Comparative safety and effectiveness of sitagliptin in patients with type 2 diabetes: retrospective population based cohort study

BMJ 346:f2267. Department of Public Health Sciences, School of Public Health, University of Alberta, Edmonton, AB, Canada OBJECTIVE: To determine if the use of sitagliptin […]

Association between fee-for-service expenditures and morbidity burden in primary care

Eur J Health Econ 15:599-610. Faculty of Health Sciences, COHERE-Centre of Health Economics Research, Institute of Public Health, University of Southern Denmark, Odense, Denmark BACKGROUND: […]

Using risk-adjustment models to identify high-cost risks

Med Care 41:1301-1312. Center for Health Research, Northwest and Hawaii, Kaiser Permanente Northwest, Portland, OR, USA BACKGROUND: We examine the ability of various publicly available […]

Predicting persistently high primary care use

Ann Fam Med 3:324-330. Division of Health Care Policy & Research, Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, MN, USA PURPOSE: […]

Specialty use among patients with treated hypertension in a patient-centered medical home

J Gen Intern Med Division of General Internal Medicine and Geriatrics, Northwestern University, Feinberg School of Medicine, Chicago, IL, USA BACKGROUND: Little is known about […]

One-year outcomes associated with using observation services in triaging patients with nonspecific chest pain

Clin Cardiol 37:591-596. Division of Management, Policy and Community Health, University of Texas School of Public Health, Houston, Texas. BACKGROUND: Observation services are provided in […]

Changes in office visit use associated with electronic messaging and telephone encounters among patients with diabetes in the PCMH

Ann Fam Med 12:338-343. Group Health Research Institute, Seattle, WA, USA PURPOSE: Telephone- and Internet-based communication are increasingly common in primary care, yet there is […]

Measuring morbidity in populations: performance of the Johns Hopkins Adjusted Clinical Group (ACG) case-mix adjustment system in Manitoba

Winnipeg, MB, Canada: Manitoba Centre for Health Policy. Manitoba Centre for Health Policy, Winnipeg, MB, Canada This study examined the performance of the Johns Hopkins […]

Creating meaningful composite scores for primary care

2015 North American Primary Care Research Group Annual Meeting, October 2015, Cancun, Mexico. Context: Composite scores (CSs) provide a global measure of quality. CS development […]

Long-term risk of heart failure associated with adjuvant trastuzumab in breast cancer patients

2014 American Society of Clinical Oncology Annual Meeting. Abstract 9504. J Clin Oncol 32 (suppl; abstr 9504). University of Toronto, Toronto, ON, Canada; St. Michael’s […]

Is the class half empty? A population-based perspective on socioeconomic status and educational outcomes

IRPP Choices 12:1-30. Manitoba Centre for Health Policy, Department of Community Health Sciences, Faculty of Medicine University of Manitoba, Winnipeg, MB, Canada The purpose of […]

Characteristics of risk adjustment systems. Working Paper Series 2

Gainesville, FL, USA: Institute for Child Health Policy, University of Florida. Institute for Child Health Policy, University of Florida, Gainesville, FL, USA Increasing numbers of […]

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

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

Performance of risk adjusted capitated systems in allocating a global budget

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

The Adjusted Clinical Groups (ACGs) system in Osakidetza

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

How are Manitoba’s children doing?

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

Using selected diagnoses to improve the Chilean capitation formula

Greifswald, Germany: Ernst Moritz Arndt University of Greifswald. Ernst Moritz Arndt University of Greifswald, Greifswald, Germany OBJECTIVES: To contribute to the policy discussion of equity […]

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Leicester City CCG Case Study 2

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

Care Management Program Case Study-Payer

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

Case-Mix Information Uses and Health Services Sustainability

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

Options for Concurrent Risk Assessment

DST Health Solutions Options for Concurrent Risk Assessment Amy Salls

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

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

Wednesday(P4)-Population Health Emerging Risk-Medscheme

Population Health Emerging Risk-Medscheme

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

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

Cost Risk Scores: Amy Salls, DST Health Solutions

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

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The ACG System and Public Health

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

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Provider Profiling and Engagement Case Study – Payer

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

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 […]

Impact of a nurse-based intervention on medication outcomes in vulnerable older adults

Abstract Background Medication-related problems are common in older adults with multiple chronic conditions. We evaluated the impact of a nurse-based primary care intervention, based on […]

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Big Data Byte: Jonathan Weiner on analytics in population health

Dr. Jonathan Weiner participated as a featured presenter in the 2015 Big Data & Health Care Analytics forum in New York City. Watch the below […]

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ACG System Version 12.0

This presentation discusses the various v12.0 features such as refined risk assessment variables and enhanced analytics. Presented by Dr. Stephen Sutch. Learn more.

Family members of people with alcohol or drug dependence: health problems and medical cost compared to family members of people with diabetes and asthma

Addiction 104:203-214. Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA AIMS: To compare the medical costs and prevalence of health conditions of family […]

Comparative analysis of outcome measures used in examining neurodevelopmental effects of early childhood anesthesia exposure

Anesthesiology 120:1319-1332. Columbia University, New York, NY, USA; University of Western Australia, Perth, Australia; Princess Margaret Hospital for Children, Perth, Australia; New York State Psychiatric […]

Inequities in ambulatory care and the relationship between socioeconomic status and respiratory hospitalizations: a population-based study of a Canadian city

Ann Fam Med 12:402-407. University of Manitoba, Winnipeg, MB, Canada PURPOSE: Individuals of lower socioeconomic status have higher rates of hospitalization due to ambulatory care-sensitive […]

Neurodevelopment of children exposed to anesthesia: design of the Mayo Anesthesia Safety in Kids (MASK) study

Contemp Clin Trials 41:45-54. Mayo Clinic, Rochester, MN, USA; Baylor College of Medicine, Houston, TX, USA; National Center for Toxicological Research, Food and Drug Administration, […]

Diagnosis and treatment of incident hypertension among patients with diabetes: a U.S. multi-disciplinary group practice observational study

J Gen Intern Med 30:768-776. University of Wisconsin, Madison, WI, USA BACKGROUND: Early hypertension control reduces the risk of cardiovascular complications among patients with diabetes […]

Comorbidity burden and health services use in community-living older adults with diabetes mellitus: a retrospective cohort study

Can J Diabetes 40:35-42. University of Alberta, Edmonton, AB, Canada; Institute for Clinical Evaluative Sciences, Toronto, ON, Canada; Women’s College Hospital, Toronto, ON, Canada; McMaster […]

Exploring indicators of use of costly health services in community-dwelling adults with multiple chronic conditions

Prof Case Manag 20:3-11. Mayo Clinic College of Medicine, Rochester, MN, USA; Mayo Clinic, Rochester, MN, USA; Case Western Reserve University, Cleveland, OH, USA Although […]

Comorbidity and the use of primary care and specialist care in the elderly

Ann Fam Med 3:215-222. Department of Health Policy and Management, Johns Hopkins School of Public Health, Baltimore, MD, USA PURPOSE: The impact of comorbidity on […]

All-cause mortality and serious cardiovascular events in people with hip and knee osteoarthritis: a population based cohort study

PLoS One 9:e91286. Women’s College Hospital, Toronto, ON, Canada; University of Toronto, Toronto, ON, Canada; Institute for Clinical Evaluative Sciences, Toronto, ON, Canada BACKGROUND: Because […]

Development and application of a population-oriented measure of ambulatory care case-mix

Med Care 29:452-472. Department of Health Policy and Management, Johns Hopkins University School of Hygiene and Public Health, Baltimore, MD, USA This article describes a […]

Adjusted Clinical Groups (ACGs) explain the utilization of primary care in Spain based on information registered in the medical records: a cross-sectional study

Health Policy 76:38-48. Centro de Salud Astrabudua, Consulado Bilbao, Bizkaia, Spain BACKGROUND: Previous studies have shown the validity of Adjusted Clinical Groups (ACGs) in the […]

Diabetes quality of care and outpatient utilization associated with electronic patient-provider messaging: a cross-sectional analysis

Diabetes Care 32:1182-1187. Department of Health Services, University of Washington School of Public Health and Community Medicine, Seattle, WA, USA OBJECTIVE: To test the hypothesis […]