Skip to content

Don’t miss our next webinar: Unlocking AI Potential in Health Care

Register Here

Documents

Documents

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 […]

Health Utilities in People with Hepatitis C Virus Infection: A Study Using Real-World Population-Level Data

Abstract Background Hepatitis C virus (HCV) infection is associated with reduced quality of life and health utility. It is unclear whether this is primarily due […]

Delay in Diabetes Diagnosis After High-Deductible Health Plan Enrollment: A Pre-Post Study with Control

Abstract Background High-deductible health plan (HDHP) members face relatively high out-of-pocket (OOP) costs for urgent care, high-acuity care, and secondary prevention. These costs could affect […]

Using Machine Learning To Predict Future Foster Care Admission

Structured Abstract Introduction Foster care admissions are highly traumatic for children and their families, often causing serious adverse outcomes. We seek to assess the viability […]

Profiling Hospital Performance Based on Mortality After Transcatheter Aortic Valve Replacement in Ontario, Canada

Abstract Background: Public reporting of hospital-level outcomes is increasingly common as a means to target quality improvement strategies to ensure the delivery of optimal care. […]

Featured thumbnail
Case Management and Care Coordination Part 2

This webinar will provide an introduction to different types of care programs in use to care for patients with existing and emerging risk and the […]

Featured thumbnail
Provider Profiling and Engagement

Presented by: Dina Goldberg
Executive Director of Population Health, Innovations and Transformation for JHHC

This webinar describes how Johns Hopkins HealthCare (JHHC) uses Provide Profile Reports, created with data from the ACG System, as part of its comprehensive Provider Engagement Strategy.

Association between use of a health information exchange system and hospital admissions

Appl Clin Inform 5:219-231. Weill Cornell Medical College, New York, NY, USA OBJECTIVE: Relevant patient information is frequently difficult to obtain in emergency department (ED) […]

Impact of socio-economic status on breast cancer screening in women with diabetes: a population-based study

Diabet Med 31:806-812. Women’s College Research Institute, Women’s College Hospital, Toronto, ON, Canada AIMS: There is evidence to suggest that mammography rates are decreased in […]

Postoperative medical complications associated with anesthesia in older adults with dementia

J Am Geriatr Soc 62:2102-2109. Queen’s University, Kingston, On, Canada OBJECTIVES: To examine the association between anesthetic technique and postoperative complications in older adults with […]

High-risk case identification for use in comprehensive complex care management

Popul Health Manag 18:15-22. Clalit Health Services, Tel Aviv, Israel The current study aimed to develop a patient selection process for muiltimorbid care management that […]

Paying for primary care: a cross-sectional analysis of cost and morbidity distributions across primary care payment models in Ontario Canada

Soc Sci Med 124:18-28. University of Toronto, Toronto, ON, Canada; Institute for Clinical Evaluative Sciences, Toronto, ON, Canada Policy-makers desire an optimal balance of financial […]

Primary care physician panel size and quality of care: a population-based study in Ontario, Canada

Ann Fam Med 14:26-33. University of Ottawa, Ottawa, ON, Canada; Institute for Clinical Evaluative Sciences, Ottawa, ON, Canada; Institute for Clinical Evaluative Sciences, Toronto, ON, […]

Comorbidity: implications for the importance of primary care in ‘case’ management

Ann Fam Med 1:8-14. Department of Health Policy and Management, Johns Hopkins University, Bloomberg School of Public Health, Baltimore, MD, USA BACKGROUND: Although comorbidity is […]

Classifying physician practice style: a new approach using administrative data in British Columbia

Med Care 53:276-282. University of British Columbia, Vancouver, BC, Canada; Simon Fraser University, Burnaby, BC, Canada; Access Consulting Ltd, Saskatoon, SK, Canada; University of Alberta, […]

Removal or revision of vaginal mesh used for the treatment of stress urinary incontinence

JAMA Surg :1-9. Western University, London, ON, Canada; Institute for Clinical Evaluative Sciences, London, ON, Canada; Hamad Medical Corporation, Doha, Qatar IMPORTANCE: Synthetic mesh slings […]

Post-discharge intervention in vulnerable, chronically ill patients

J Hosp Med 7:124-130. Oregon Health and Sciences University, Portland VA Medical Center, Portland, OR, USA BACKGROUND: Studies suggest that the inpatient to outpatient transition […]

Patient based ‘burden-of-illness’ in Swedish primary health care. Applying the Johns Hopkins ACG case-mix system in a retrospective study of electronic patient records

Int J Health Plann Manage 17:269-282. Centre for Development of Health Services, Stockholm County Council, Sweden Patients from one municipality in Sweden utilizing primary health […]

Development and estimation of a pediatric chronic disease score using automated pharmacy data

Med Care 37:874-883. Center for Health Studies, Group Health Cooperative of Puget Sound, Seattle, WA, USA BACKGROUND: Although risk assessment models for specific adult populations […]

Effectiveness of bone density measurement for predicting osteoporotic fractures in clinical practice

J Clin Endocrinol Metab 92:77-81. Department of Medicine, University of Manitoba, Winnipeg, MB, Canada CONTEXT: Bone density measurement with dual-energy x-ray absorptiometry is widely used […]

The population health approach: health GIS as a bridge from theory to practice

Int J Health Geogr 4:23. Population Health Surveillance Unit, Vancouver Island Health Authority, Victoria, BC, Canada BACKGROUND: The Population Health Approach, proposed by Health Canada, […]

Explanatory ability of the ACG system regarding the utilization and expenditure of the national health insurance population in Taiwan–a 5-year analysis

J Chin Med Assoc 71:191-199. Department of Medical Affairs and Planning, Taipei Veterans General Hospital, Taipei, Taiwan, ROC BACKGROUND: The adjusted clinical group (ACG) is […]

Impact of physician assistant care on office visit resource use in the United States

Health Serv Res 43:1906-1922. Department of Community and Family Medicine, Duke University Medical Center, Durham, NC, USA OBJECTIVE: To investigate whether the use of physician […]

Provider profiling: doing it right

Healthplan 41:74-79. Medstat Group, Washington, DC, USA Managed care plans are a type of health insurance. They have contracts with health care providers and medical facilities […]

Risk of low bone mineral density associated with psychotropic medications and mental disorders in postmenopausal women

J Clin Psychopharmacol 31:56-60. Department of Psychiatry, University of Manitoba, Winnipeg, MB, Canada BACKGROUND: Independent reports suggest that various psychotropic medications and psychiatric disorders are […]

Health reform, health insurance, and mental health care

Am J Psychiatry 169:675-677. Kaiser Commission on Medicaid and the Uninsured, Henry J. Kaiser Family Foundation, Washington, DC; Rollins School of Public Health, Emory University, […]

Disease burden in the managed care population at an academic medical center: the effect of adding local partners

Acad Med 80:587-593. University of Michigan Medical School, Ann Arbor, USA. jbilli@umich.edu PURPOSE: Academic medical centers (AMCs) have traditionally cared for the most severely ill […]

Building health plan databases to risk adjust outcomes and payments

Int J Qual Health Care 10:531-538. Center for Health Research, Kaiser Permanente, Northwest Division, Portland, OR, USA OBJECTIVES: To highlight the types and sources of […]

The changing shape of the physician workforce in prepaid group practice

Health Aff W4:60-63. Permanente Federation, Kaiser Permanente Health Care Program, Oakland, CA, USA Multiple factors have combined to change the size and specialty composition of […]

Does a large-scale organizational transformation toward patient-centered access change the utilization and costs of care for patients with diabetes?

Med Care Res Rev 69:519-539. Department of Health Services, School of Public Health, University of Washington, Seattle, WA, USA The authors examined whether Group Health’s […]

A hospital system’s wellness program linked to health plan enrollment cut hospitalizations but not overall costs

Health Aff 32:477-485. University of Arizona, Tucson, AZ, USA Many policy makers believe that health status would be improved and health care spending reduced if […]

Comparison of specialty referral rates in the United Kingdom and the United States: retrospective cohort analysis

BMJ 325:370-371. Health Services Research and Development Center, Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA […]

Effects of patient and physician practice socioeconomic status on the health care of privately insured managed care patients

Med Care 41:842-852. Department of Family and Community Medicine, Center for Health Services Research in Primary Care, University of California, Davis, USA BACKGROUND: Previous research […]

Diffusion into use of exenatide for glucose control in diabetes mellitus: a retrospective cohort study of a new therapy

Clin Ther 29:1784-1794. Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA BACKGROUND: Exenatide was approved by the US Food and Drug […]

Efficiency profile in the neurological referrals effectuate reference specialists: use case-mix system Adjusted Clinical Groups

An Med Interna 25:213-221. Published in Spanish. Badalona Serveis Assistencials S.A., Barcelona, Spain OBJECTIVES: To determine the general referral and neurological rate per center and […]

Is pharmacologic care of chronic obstructive pulmonary disease consistent with the guidelines?

Popul Health Manag 13:21-26. Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA Chronic obstructive pulmonary disease (COPD) […]

Mental health service use before and after diagnosis of early-onset bipolar disorder

J Behav Health Serv 38:398-413. Health Service and Population Research Department, Institute of Psychiatry, King’s College London, London, UK To investigate patterns of mental health […]

Potential Medicare savings through prevention and risk reduction

Popul Health Manag 14 Suppl 1:S35-S44. Healthways Center for Health Research, Franklin, TN, USA Medicare is challenged to maintain solvency as enrollment climbs because of […]

The relationship between financial incentives and quality of diabetes care in Ontario, Canada

Diabetes Care 35:1038-1046. Centre for Research on Inner City Health, Keenan Research Centre in the Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Toronto, […]

Comparison of three methods for measuring multiple morbidity according to the use of health resources in primary healthcare

Aten Primaria 44:348-357. Published in Spanish. Badalona Serveis Assistencials, Badalona, Barcelona, Spain OBJECTIVE: To compare three methods of measuring multiple morbidity according to the use […]

Heart failure in primary care: co-morbidity and utilization of health care resources

Fam Pract 30:520-524. Bioengineering and Telemedicine Unit, Puerta de Hierro University Teaching Hospital, Majadahonda, Madrid, Spain BACKGROUND: In order to ensure proper management of primary […]

Risk-stratification methods for identifying patients for care coordination

Am J Manag Care 19:725-732. Mayo Clinic, Rochester, MN, USA BACKGROUND: Care coordination is a key component of the patient-centered medical home. However, the mechanism […]

Predictors of short-term postoperative survival after elective colectomy in colon cancer patients >/= 80 years of age

Ann Surg Oncol 20:1427-1435. Department of Surgery, UW Madison School of Medicine and Public Health, Madison, Wisconsin, USA BACKGROUND: Individuals ≥ 80 years of age […]

Movement disorders in elderly users of risperidone and first generation antipsychotic agents: a Canadian population-based study

PLoS One 8:e64217. Faculty of Pharmacy, University of Manitoba, Winnipeg, MB, Canada BACKGROUND: Despite concerns over the potential for severe adverse events, antipsychotic medications remain […]

Patient and Physician Factors Associated With Pulmonary Function Testing for COPD: A Population Study

Chest 145:272-281. Institute for Clinical Evaluative Sciences; Sunnybrook Research Institute; Sunnybrook Health Sciences Centre; University of Toronto, Toronto, ON, Canada BACKGROUND: The diagnosis of COPD […]

Identifying controlled substance patterns of utilization requiring evaluation using administrative claims data

Am J Manag Care 10:783-790. HSI Network LLC, USA OBJECTIVES: To develop a systems approach to identify, for further evaluation, patients with potential controlled substance […]

The meaningful use of electronic health records and health care quality

Am J Med Qual 30:512-519. Weill Cornell Medical College, New York, NY, USA The federal government is investing approximately $30 billion in incentives for adoption […]

Copayment level and drug switching: findings for type 2 diabetes

Am J Pharm Benefits 2:412-420. University of Hawaii at Manoa, Honolulu, HI, USA OBJECTIVE: To assess the relationship between copayment level and drug switching among […]

Does increased medication use among seniors increase risk of hospitalization and emergency department visits?

Working Paper 150004. Toronto, ON, Canada: Canadian Centre for Health Economics. Canadian Centre for Health Economics, Toronto, ON, Canada Objective: to examine the extent of […]

Diagnosis and disruption: understanding guideline-consistent dementia care and patterns of transition experienced by individuals with dementia

Vancouver, BC, Canada: University of British Columbia (doctoral dissertation). University of British Columbia, Vancouver, BC, Canada Introduction: Early detection and management, as outlined in dementia […]

CareOregon: transforming the role of a Medicaid health plan from payer to partner

New York, NY, USA: Commonwealth Fund. Commonwealth Fund, New York, NY, USA CareOregon, a Portland, Oregon-based nonprofit Medicaid health plan, developed two innovative programs to […]

The knowledge of morbidity in primary care as an aid in the planning and management of the services

Semergen doi:10.1016/j.semerg.2009.12.003. Published in Spanish. Servicio Canario de la Salud, Santa Cruzde Tenerife, Spain The analysis of the morbidity and management of its knowledge is […]

Allocating funds for healthcare in Manitoba regional health authorities: a first step – population-based funding

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

Managed care holds down costs, doesn’t hurt quality

Minneapolis Star Tribune, January 3:A13. No abstract

Risk adjustment lexicon

Reporting Framework Subcommittee of the Steering Committee of the Minnesota ACG Users Group. Revised by Chad Abrams, Terry Bernhardt, Steven Foldes, Jason Wiley, May 17, […]

Quality of care for Medicaid and privately insured children in a commercial insurance plan

Richmond, VA, USA: Virginia Commonwealth University (doctoral dissertation). Virginia Commonwealth University, Richmond, VA, USA The central thesis of this study is that exposure to the […]

Risk adjustment in competitive health plan markets

In: Culyer AJ, Newhouse JP, ed. Handbook of Health Economics, Volume 1. Amsterdam, Netherlands: Elsevier Science B. V.:755-845. Erasmus University, Rotterdam, Netherlands; Boston University, Boston, […]

Equity in health, health care services use and health care financing in British Columbia, 1992 and 2002

Vancouver, BC, Canada: University of British Columbia (doctoral dissertation). University of British Columbia, Vancouver, BC, Canada The objectives of this thesis are to identify equity […]

Work limitations and their relationship with morbidity burden in employed persons with diabetes

Baltimore, MD, USA: Johns Hopkins University (doctoral dissertation). Johns Hopkins University, Baltimore, MD, USA BACKGROUND. Work limitations are functional limitations within the work context resulting […]

The application of Johns Hopkins Adjusted Clinical Group Case-mix System in AFMS

In: Cato W, Roberts WC, ed. Proceedings of the 2011 AFMS Medical Research Symposium, Volume 4. Healthcare Informatics Track. August 2-4, 2011, National Harbor, MD, […]

Morbi-mortality and use of recourses after acute coronary syndrome in a Spanish population

Revista Clinica Espanola 211:560-571. Directorate of Planning, Badalona Serveis Assistencials SA, Badalona, Spain Morbi-mortality and use of recourses after acute coronary syndrome in a Spanish […]

A population-based study of healthcare resource utilization by metastatic gastric cancer patients in Ontario

Kingston, ON, Canada: Queens University (masters theseis). Queens University, Kingston, ON, Canada BACKGROUND: Gastric cancer is the fourth most common cancer in the world. Non-curative, […]

Association between use of a specialized diagnostic assessment unit and the diagnostic interval in Ontario breast cancer patients

Kingston, ON, Canada: Queen’s University (masters thesis). Queen’s University, Kingston, ON, Canada BACKGROUND: The amount of time that it takes to get a breast cancer […]

Comorbidity and healthcare expenditure in women with osteoporosis living in the Basque Country (Spain)

J Osteoporosis Basque Institute for Healthcare Innovation, Barakaldo, Spain BACKGROUND: The aim of the study was to estimate the prevalence of depression in the population […]

The Value of Patient Identification

Johns Hopkins Bloomberg School of Public Health The Value of Patient Identification Karen Kinder, PhD., MBA

One way of measuring morbidity of HA Patients

Hospital Authority One Way of Measuring Morbidity of HA Patients: from Research to Lessons Learnt Dr. Deacons Yeung Chief Manager

ACG 101

DST Health Solutions ACG 10 Lisa Kabasakalian

Applying the ACG System to support case management for the population of Eastern Cheshire

Integral Health Solutions Applying ACGs to care co-ordination, planning and commissioning Bernadette Bailey, Transformation Programme Manager, Eastern Cheshire CCG Jayne Molyneux, Care Co-ordination Advisor, Integral […]

Monday(C1)-Concurrent Resource Use and All Age Modeling – Abrams

Concurrent Resource Use and All Age Modeling – Chad Abrams

Monday(P5)-Understanding Transitions in Morbidity Burden: an Exploratory Analysis

David Linz, MA Robert Reid, MD, PhD  Paul Fishman, PhD 

Featured thumbnail
A Health Plan and the ACG System

At an event celebrating the ACG System receiving the 2015 Health Services Research (HSR) Award from AcademyHealth, Patricia M. C. Brown, Esq., President, Johns Hopkins […]

Featured thumbnail
Data Visualization and Patient Identification – Military

The Defense Health Agency (DHA) supports the delivery of integrated, affordable, and high-quality health services to Military Health System (MHS) beneficiaries and is responsible for […]

Variation in Access to Kidney Transplantation across Renal Programs in Ontario, Canada

In the United States kidney transplant rates vary significantly across end-stage renal disease (ESRD) networks. We conducted a population-based cohort study to determine whether there […]

A case-mix classification system for explaining healthcare costs using administrative data in Italy

Abstract Background The Italian National Health Service (NHS) provides universal coverage to all citizens, granting primary and hospital care with a copayment system for outpatient […]

Attitudes and behaviour towards psychotropic drug prescribing in Swedish primary care: a questionnaire study

Abstract Background The prescribing of psychotropic drugs, i.e. antidepressants, sedatives (anxiolytics, hypnotics), and antipsychotics is considerable and a large proportion is prescribed by general practitioners […]

Association between allopurinol and cardiovascular outcomes and all‐cause mortality in diabetes: A retrospective, population‐based cohort study

Abstract Aim To assess the association between allopurinol and mortality and cardiovascular outcomes in an allopurinol‐treated diabetes cohort. Materials and Methods We conducted a population‐based […]

Patient- and hospital-level predictors of vancomycin-resistant Enterococcus (VRE) bacteremia in Ontario, Canada

Abstract   Background Data are limited on risk factors for vancomycin-resistant Enterococcus (VRE) bacteremia. Methods All patients with a confirmed VRE bacteremia in Ontario, Canada, between January […]

When the Doctor-Patient Divide Is a Chasm

Abstract For an important group of patients, the divide between themselves and their healthcare team is a chasm. These patients are variously identified in different […]

Health of Spanish centenarians: a cross-sectional study based on electronic health records

Abstract Background With the number of centenarians increasing exponentially in Spain, a deeper knowledge of their socio-demographic, clinical, and healthcare use characteristics is important to […]

A cross-sectional study of prolonged disengagement from clinic among people with HCV receiving care in a low threshold, multidisciplinary clinic

Abstract Background Disengagement from care can affect treatment outcomes of patients with hepatitis C virus (HCV). We assessed the extent and determinants of disengagement among […]

The direct healthcare costs attributable to West Nile virus illness in Ontario, Canada: a population-based cohort study using laboratory and health administrative data

Abstract Background West Nile virus (WNV) is a mosquito-borne flavivirus, first detected in the Western Hemisphere in 1999 and spread across North America over the […]

Objective Estimates of Direct-Medical Costs Among Persons Aged 3 to 38 Years With and Without Research-Defined Autism Spectrum Disorder Ascertained During Childhood: A Population-Based Birth-Cohort Study

Abstract Objectives Accurate estimates of autism spectrum disorder (ASD)–associated medical costs are essential for predicting future care needs, allocating resources, identifying best practices, and modeling […]

Healthcare Service Usage and Costs for Elderly Patients with Obstructive Lung Disease

Abstract Background The worldwide prevalence of obstructive lung disease (OLD) is increasing, especially among people >65 years old, and nearly three in four adults with […]

Multimorbidity clusters in patients with chronic obstructive airway diseases in the EpiChron Cohort

Abstract Objectives Chronic obstructive airway diseases such as chronic obstructive pulmonary disease (COPD), asthma, rhinitis, and obstructive sleep apnea (OSA) are amongst the most common […]