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Impact of a patient-centered care model implemented in public health facilities in Chile: A real world evidence evaluation

Abstract Objective Health systems face multimorbidity as the leading cause of the burden of disease and demand for healthcare services. Although non-communicable diseases are well […]

Comparing and validating medication complexity from insurance claims against electronic health records

ABSTRACT BACKGROUND Patient effort to comply with complex medication instructions is known to be related to nonadherence and subsequent medical complications or health care costs. […]

Surgeon factors but not hospital factors associated with length of stay after colorectal surgery – A population based study

Abstract Aim Length of stay (LOS) after colorectal surgery (CRS) is a significant driver of healthcare utilization and adverse patient outcomes. To date, there is […]

Predicting Health Utilities Using Health Administrative Data: Leveraging Survey-linked Health Administrative Data from Ontario, Canada

Abstract Background The quality-adjusted life year (QALY) is widely used to measure health outcome that combines the length of life and health-related quality of life […]

Outcomes following exposure to drug interactions with ibrutinib in patients with chronic lymphocytic leukaemia

Summary Ibrutinib is metabolized by cytochrome P450 3A (CYP3A) and poses challenges with drug interactions. We conducted a population-based cohort study of Ontario residents aged […]

Can the Care Need Index Identify Healthcare Centres With Higher Proportions of Children at Risk?

ABSTRACT Aims To examine the association between the widely used social deprivation index, the Child Adjusted Care Need Index, and healthcare centres with a higher […]

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 […]

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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 […]

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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 […]

Drugs prescribed by general practitioners according to age, gender and socioeconomic status after adjustment for multimorbidity level

BMC Fam Pract 15:183. Department of Clinical Sciences in Malmö, Center for Primary Health Care Research, Lund University, Malmö, Sweden BACKGROUND: Age, gender and socioeconomic […]

Direct medical costs attributable to venous thromboembolism among persons hospitalized for major operation: a population-based longitudinal study

Surgery 157:423-451. Mayo Clinic, Rochester, MN, USA; K Long Health Economics Consulting LLC, St. Paul, MN, USA BACKGROUND: We estimated medical costs attributable to venous […]

Preventive counseling services during primary care visits: a comparison of health centers versus other physician offices

J Health Care Poor Underserved 26:519-535. Johns Hopkins University, Baltimore, MD, USA We compared preventive counseling services provided by health centers versus other physician offices. […]

A comprehensive assessment of family physician gender and quality of care: a cross-sectional analysis in Ontario, Canada

Med Care 54:277-286. University of Ottawa, Ottawa, ON, Canada; Institute of Clinical Evaluative Sciences, Ottawa, ON, Canada; Queen’s University, Kingston, ON, Canada; Monash University, Clayton, […]

Prescription stimulant use and hospitalization for psychosis or mania: a population-based study

J Clin Psychopharmacol 35:667-671. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada; University of Toronto, Toronto, ON, Canada; St Michael’s Hospital, Toronto, ON, Canada Small […]

Risk of cardiovascular events and mortality among a population-based cohort of immigrants and long-term residents with diabetes: Are all immigrants healthier and if so, for how long?

Am Heart J 170:123-132. University Health Network, Toronto, ON, Canada; Mount Sinai Hospital, Toronto, ON, Canada; Institute for Clinical Evaluative Sciences, Toronto, ON, Canada; University […]

Pain among older adults from a gender perspective: findings from the Swedish National Study on Aging and Care (SNAC-Blekinge)

Scand J Public Health Blekinge Institute of Technology, Karlskrona, Sweden; Lund University, Lund, Sweden; Linnaeus University, Växjö, Sweden BACKGROUND AND AIMS: Pain is common in […]

Ethnic disparities in care following acute coronary syndromes among Asian Americans and Pacific Islanders during the initial hospitalization

Cell Mol Biol 47:1209-1215. Hawaii Medical Service Association, Care Management, Honolulu, HI, USA Despite the fact that Asian Americans and Pacific Islanders are the fastest […]

Changes in health care costs over time following the cessation of intimate partner violence

J Gen Intern Med 25:920-925. Group Health Research Institute, Seattle, WA, USA BACKGROUND: Research has documented greater health care costs attributable to intimate partner violence […]

Universal health insurance and equity in primary care and specialist office visits: a population-based study

Ann Fam Med 7:396-405. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada PURPOSE: Universal coverage of physician services should serve to reduce socioeconomic disparities in […]

Geographic variation in primary care visits in Iowa.

Health Serv Res 30:657-671. Graduate Program in Hospital and Health Administration, University of Iowa, Iowa City, IA, USA. OBJECTIVE: This study investigates the determinants of […]

Coding algorithms for defining comorbidities in ICD-9-CM and ICD-10 administrative data

Med Care 43:1130-1139. Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada OBJECTIVES: Implementation of the International Statistical Classification of Disease and Related […]

Epidemiology and impact of multimorbidity in primary care: a retrospective cohort study

Br J Gen Pract 61:e12-e21. Department of Community Medicine, University of Bristol, Bristol, UK BACKGROUND: In developed countries, primary health care increasingly involves the care […]

Predictive modeling in practice: improving the participant identification process for care management programs using condition-specific cut points

Popul Health Manag 14:205-210. Research and Development Unit, Johns Hopkins HealthCare LLC, Glen Burnie, MD, USA The objective of this study was to optimize predictive […]

Fracture risk from psychotropic medications: a population-based analysis

J Clin Psychopharmacol 28:384-391. Department of Psychiatry, University of Manitoba, Winnipeg, MB, Canada BACKGROUND: Selective serotonin reuptake inhibitors (SSRIs), benzodiazepines, and antipsychotics have each been […]

Ankle fractures do not predict osteoporotic fractures in women with or without diabetes

Osteoporos Int 23:957-962. Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada It is not clear whether ankle fractures predict future osteoporotic fractures in women, […]

The role of provider continuity in preventing hospitalizations

Arch Fam Med 7:352-357. Department of Family and Community Medicine, Christiana Care Health System, Wilmington, DE, USA OBJECTIVES: To examine the association between provider continuity […]

The effect of distance to primary care physician on health care utilization and disease burden

Health Care Manage Rev 32:22-29. University of Michigan Medical School, Ann Arbor, USA. BACKGROUND: The relationship of distance to care with total health care utilization […]

Case mix measures for ambulatory care

J Public Health Med 13:189-197. University of Newcastle upon Tyne, School of Health Care Sciences, Medical School, Newcastle, UK Resource management in Ambulatory Care is […]

Performance of diagnosis-based risk adjustment measures in a population of sick Australians

Aust N Z J Public Health 26:500-507. Faculty of Health Sciences, School of Public Health, La Trobe University, Victoria, Australia OBJECTIVE: Australia is beginning to […]

Morbidity profiles at three primary care clinics in Perlis, Malaysia

Med J Malaysia 67:363-368. Ministry of Health, Kangar Health Clinic, Jalan Kolam, Kangar, Perlis, Malaysia Allocation of funding within the Ministry of Health of Malaysia […]

Healthcare utilization in patients with Parkinson’s disease: a population-based analysis

Parkinsonism Relat Disord 18:930-935. Movement Disorder Clinic, 200 Woodlawn Street, Winnipeg, MB, Canada PURPOSE: To investigate factors associated with healthcare utilization and prescription drug use […]

Referral of children to specialists in the United States and the United Kingdom

Arch Pediatr Adolesc Med 157:279-285. Department of Health Policy and Management, Health Services Research and Development Center, Bloomberg School of Public Health, Johns Hopkins University, […]

Is quality free? The relationship between cost and quality across 18 provider groups

Am J Manag Care 8:413-422. HealthPartners Research Foundation, Minneapolis, MN, USA OBJECTIVE: To learn whether the healthcare costs for patients of various care delivery systems […]

A patient classification system for our primary care: the Ambulatory Care Groups (ACGs)

Gac Sanit 11:83-94. Published in Spanish. Unitat d’Investigació Centre del Institut Catalá de la Salut, Barcelona, Spain OBJECTIVES: The ambulatory care groups (ACGs) were developed […]

Influence of morbidity, metabolic control, and use of resources in subjects with cardiovascular risk in the primary care setting

Aten Primaria 40:447-454. Published in Spanish. Dirección de Planificación y Desarrollo Organizativo. Badalona Serveis Assistencials S.A. Badalona. Barcelona. España OBJECTIVE: To determine the comorbidity, the […]

Complexity and continuity of treatments among privately insured youth diagnosed with bipolar disorder

Front Psychiatry 1:144. Health Services and Population Research Department, Institute of Psychiatry, King’s College London, London, UK OBJECTIVES: To examine longitudinal patterns of complexity, continuity, […]

Cognitive and behavioral outcomes after early exposure to anesthesia and surgery

Pediatrics 128:e1053-e1061. Erratum in: Pediatrics. 2012 Mar;129(3):595. Department of Anesthesiology, College of Medicine, Mayo Clinic, Rochester, MN, USA BACKGROUND: Annually, millions of children are exposed […]

Use and costs of medical care for children and adolescents with and without attention-deficit/hyperactivity disorder

JAMA 285:60-66. Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA CONTEXT: A shortage of data exists on medical care use by persons with […]

Use of other opioids during methadone therapy: a population-based study

Addiction 107:776-780. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada AIMS: To determine the extent to which other opioids are prescribed to patients receiving methadone […]

Adaptive capacity of the Adjusted Clinical Groups Case-Mix System to the cost of primary healthcare in Catalonia (Spain): a observational study

BMJ Open 2:2012-000941. Directorate of Planning, Badalona Serveis Assistencials SA, Badalona, Barcelona, Spain OBJECTIVES: To describe the adaptive capacity of the Adjusted Clinical Groups (ACG) […]

Estimating diabetes prevalence in the Military Health System population from 2006 to 2010

Mil Med 178:986-993. Healthcare Informatics Division, United States Air Force Medical Support Agency, San Antonio, TX, USA Evidence-based articles have demonstrated an increase in diabetes […]

Glycemic control associated with secure patient-provider messaging within a shared electronic medical record: a longitudinal analysis

Diabetes Care 36:2726-2733. University of Washington School of Public Health, Seattle, WA, USA; Harvard School of Public Health, Boston, MA, USA; Group Health Research Institute, […]

Direct health-care costs attributed to hip fractures among seniors: a matched cohort study

Osteoporos Int 24:659-669. Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada SUMMARY: Using a matched cohort design, we estimated the mean direct […]

Predictors of dislocation and revision after shoulder stabilization in Ontario, Canada, from 2003 to 2008

Am J Sports Med 41:2034-2040. University of Toronto Orthopaedic Sports Medicine, Women’s College Hospital, Toronto, ON, Canada BACKGROUND: Factors contributing to recurrent dislocation, revision stabilization, […]

Estimating Demand for Care After a Medicaid Expansion: Lessons From Oregon

J Ambul Care Manage. Kaiser Permanente Northwest Center for Health Research, Portland, OR; Oregon Health and Science University, Portland, OR, USA To estimate how the […]

Characteristics of adult primary care patients as predictors of future health services charges

Med Care 39:1170-1181. Department of Community and Family Medicine, Duke University Medical Center, Durham, NC, USA BACKGROUND: Utilization risk assessment is potentially useful for allocation […]

The patient-centered medical home, electronic health records, and quality of care

Ann Intern Med 160:741-749. Weill Cornell Medical College, New York, NY, USA BACKGROUND: The patient-centered medical home (PCMH) model of primary care is being implemented […]

Relationship between pain and quality of life – findings from the Swedish National Study on Aging and Care – Blekinge study

Scand J Pain 5:270-275. Blekinge Institute of Technology, Karlskrona, Sweden; Lund University, Lund, Sweden; Linnaeus University, Växjö, Sweden BACKGROUND AND AIMS: The influence of pain […]

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 […]

Using Case Mix To Improve Equity and the Delivery of Primary Care

Goals of Presentation To introduce concepts surrounding population-based case-mix and “predictive risk” modeling. To show examples of applications worldwide where case-mix has proved information to […]

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The ACG System Development Milestones

Jonathan Weiner, DrPH, Professor, Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, and ACG System co-developer provides an insight into the evolution […]

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Resource Allocation Case Study-Government

Sweden became one of the first international adopters of the Johns Hopkins ACG System in the mid 1990s and has expanded its use to cover […]

Genetics Consultation Rates Following a Diagnosis of High-Grade Serous Ovarian Carcinoma in the Canadian Province of Ontario

Objective: In 2001, the province of Ontario expanded cancer genetic testing eligibility to include all women with high-grade serous ovarian carcinoma (HGSC) of the ovary, […]

Is case-mix adjustment in primary care at the mercy of coding quality? Yes … and no

BACKGROUND:  Primary care clinicians know that case-mix varies between different physician practices and geographical areas. Leicester City Clinical Commissioning Group (CCG) is now able to quantify […]

Effectiveness of a community care management program for multimorbid elderly patients with heart failure in the Veneto Region

Abstract Background The rapidly growing population of elderly subjects with multimorbidity is at risk of receiving fragmented and uncoordinated care, and have frequent hospitalizations and […]

Population risk and burden of health behavioral–related all-cause, premature, and amenable deaths in Ontario, Canada: Canadian Community Health Survey–linked mortality files

Abstract   Purpose To examine the association of all-cause and premature mortality with four modifiable lifestyle behaviors and quantify the burden of behavioral-related premature death in Ontario, […]

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 […]