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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Stratifying for Value: An Updated Population Health Risk Stratification Approach

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

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

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

Factors Associated With Nonreceipt of Recommended COPD Medications

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

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

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

Identifying Complex Patients Using Adjusted Clinical Groups Risk Stratification Tool

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

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

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

Understanding Data and Opportunities Focused on Value: A Single-Center Experience in Headache Care

Abstract Background and Objectives Headache syndromes are highly prevalent, disabling, and costly. Our goals were to (1) describe headache care delivery and costs in a […]

Mapping Healthcare Needs: A Systematic Review of Population Stratification Tools

Abstract Background and Aim: In 2021, healthcare expenditure in Italy represented 7.3% of the national gross domestic product, with approximately 80% attributed to the management […]

Is the Barthel index a valid tool for patient selection before urological surgery? A systematic review

Background The Barthel Index (BI) measures the level of patient independence in activities of daily living. This review aims to summarize current evidence on the […]

Multimorbidity and Hospital Admissions in High-Need, High-Cost Elderly Patients

Abstract Objective: The aim was to clarify which pairs or clusters of diseases predict the hospital-related events and death in a population of patients with complex […]

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Predictive Modeling Part II

This webinar is a follow up to the previous Predictive Modeling Part I webinar, which provides an overview of the predictive models available within in the […]

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Population Segmentation

Presented by: Sarah Kachur
Director, Population Health R&D, JHHC Business Lead, Pop. Health Precision Medicine

This webinar explores how applying risk taxonomy to a Medicare Advantage population helped a health plan improve their identification of high-risk members.

Sitagliptin use in patients with diabetes and heart failure: a population-based retrospective cohort study

JACC Heart Fail. University of Alberta, Edmonton, AB, Canada OBJECTIVES: The study objective was to evaluate the effects of sitagliptin in patients with type 2 […]

The roles of primary care PAs and NPs caring for older adults with diabetes

JAAPA 27:45-49. Duke University School of Medicine, Durham, NC; VetUnerans Affairs Pittsburgh Healthcare System and University of Pittsburgh School of Pharmacy, Pittsburgh, PA; University of […]

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 […]

The Florida MediPass program

Chapter 4. In: Gavin NI, Farrelly MC, ed. Evaluation of Medicaid managed care programs with 1915(b) waivers. Presented to HCFA Office of R&D. Rockville, MD, […]

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

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

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

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

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

Health Serv Outcomes Res Methodology 3:57-73. Academic Technology Center, Bentley College, Waltham, MA, USA; Center for Health Quality, Outcomes and Economic Research, Veterans Administration Medical […]

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

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

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

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

Nursing home adverse events: further insight into highest risk periods

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

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

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

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

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

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

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

Resource Allocation Case Study-Government

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

Enhanced Use of Data for Case Management in England

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

Population Health Management: A Focus On Analytics Using ACGs

Johns Hopkins HealthCare LLC   Population Health Management: A Focus On Analytics Using ACGs Martha Sylvia, PhD, MBA, RN

Monday(C2)-The Association between Patient Sharing among Physicians and Cost of Care-Lemke

The Association between Patient Sharing among Physicians and Cost of Care-Klaus Lemke

Tuesday(C6)-Do Real Time Clinical Measures Improve the Performance of ACG Based Predictive Models?-Fishman

Do Real Time Clinical Measures Improve the Performance of ACG Based Predictive Models? Paul Fishman, PhD  Robert Reid, MD, PhD 

AcademyHealth 2015 HSR Impact Awardee Summary description of the ACG System

2015 HSR Impact Awardee The Johns Hopkins ACG Case-Mix System

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The ACG System and Care Management

Linda Dunbar, Vice President of Population Health Care Management at Johns Hopkins HealthCare discusses how the ACG System assisted with Care Management for high-risk individuals […]

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Resource Allocation Case Study-Government

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

Relation between primary care physician supply and diabetes care and outcomes: a cross-sectional study

Background: Higher primary care physician supply is associated with lower mortality due to heart disease, cancer and stroke, but its relation to diabetes care and […]

Home Palliative Service Utilization and Care Trajectory Among Ontario Residents Dying on Chronic Dialysis

Background: Many patients who receive chronic hemodialysis have a limited life expectancy comparable to that of patients with metastatic cancer. However, patterns of home palliative […]

Association Between Wait Time for Transcatheter Aortic Valve Replacement and Early Postprocedural Outcomes

Abstract Background Rapid growth in transcatheter aortic valve replacement (TAVR) demand has translated to inadequate access, reflected by prolonged wait times. Increasing wait times are […]

Variation in Revascularization Practice and Outcomes in Asymptomatic Stable Ischemic Heart Disease

Abstract   Objectives The aims of this study were to assess variation in revascularization of asymptomatic patients with stable ischemic heart disease, identify the predictors of variation, and […]

Trends in Providing Out-of-Office, Urgent After-Hours, and On-Call Care in British Columbia

Abstract   PURPOSE Providing care in alternative (non-office) locations and outside office hours are important elements of access and comprehensiveness of primary care. We examined […]