Med Care 42:232-238. Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA OBJECTIVE: The objective of this study […]

Health Serv Res 42:629-643. Houston Center for Quality of Care and Utilization Studies, Health Services Research and Development Service, Michael E. DeBakey VA Medical Center, […]

BMC Public Health 10:244. Aragon Health Sciences Institute, Zaragoza, Spain BACKGROUND: The computerisation of primary health care (PHC) records offers the opportunity to focus on […]

Vaccine 29:240-246. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada The objective of this study was to evaluate the effectiveness of influenza vaccines in reducing […]

Arch Intern Med 172:484-491. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada BACKGROUND: Estimates of influenza vaccine effectiveness in elderly individuals are largely from observational […]

Value Health 3 Suppl 1:29-38. MEDSTAT Group, Inc., Ann Arbor, MI, USA OBJECTIVES: To estimate relationships between medical care expenditures in 1996 and adherence to […]

Rev Esp Salud Publica 80:55-65. Published in Spanish. Dirección de Planificación y Desarrollo Organizativo, Badalona, Serveis Assistencials, Badalona, Barcelona, Spain BACKGROUND: Most patient classification systems […]

Health Serv Manage Res 21:14-22. Department of Veterans Affairs Healthcare Network Upstate New York, Albany, NY, USA Using descriptive statistics, this paper revealed that the […]

Gac Sanit 23:228-231. Published in Spanish. Dirección de Planificación, Badalona Servicios Asistenciales, S.A., Badalona, Barcelona, España. PURPOSE: To validate the Johns Hopkins ACG case-mix system […]

A register-based study in a Swedish population. BMC Public Health 11:552. Department of Medical and Health Sciences, Family Medicine, Linköping University, Linköping, Sweden BACKGROUND: Depressive […]

BMC Emerg Med 11:13. Department of Family and Community Medicine, University of Toronto, Toronto, ON, Canada BACKGROUND: Emergency departments are medical treatment facilities, designed to […]

Obes Surg 22:749-763. Center for Health Care Research and Policy, MetroHealth Medical Center/Case Western Reserve University, Cleveland, OH, USA BACKGROUND: Bariatric surgery is the most […]

Clinicoecon Outcomes Res 4:39-47. Dirección de Planificación, Badalona Serveis Assistencials, Barcelona, Spain BACKGROUND: The purpose of this study was to gather information about analgesic drug […]

PLoS One 8:e66192. Children’s Hospital of Philadelphia, Philadelphia, PA, USA; Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA OBJECTIVE: To evaluate the validity […]

BMC Fam Pract 14:11. Multiprofessional Education Unit for Family and Community Care (South-east), Madrid, Spain BACKGROUND: Chronic obstructive pulmonary disease (COPD) is frequent and often […]

Osteoporos Int 24:1247-1256. Department of Medicine, University of Manitoba, Winnipeg, MB, Canada We examined the independent contributions of First Nations ethnicity and lower income to […]

Health Aff W4:70-72. Project Hope, Millwood, VA, USA The author’s father was a psychiatrist, a concerned citizen, and a Medicare patient. He died recently after […]

J Health Econ 35C:109-122. University of Bristol, Bristol, UK; University of York, York, UK Models of the determinants of individuals’ primary care costs can be […]

Med Care 52:86-92. Harvard University; Harvard Medical School; Harvard Pilgrim Healthcare Institute, Harvard Medical School, Boston, MA, USA BACKGROUND: By shifting a greater share of […]

Allergy. Allergy and Clinical Immunology Unit, Meir Medical Center, Kfar Saba, Israel; Sackler Faculty of Medicine, Tel Aviv University, Israel. BACKGROUND: The impact of low […]

ABSTRACT Objectives: This exploratory study used outpatient laboratory test results from electronic health records (EHRs) for patient risk assessment and evaluated whether risk markers based on […]

Montreal, QC, Canada: Montreal Health and Social Services Agency. Montreal Health and Social Services Agency, Montreal, QC, Canada La coexistence de plusieurs maladies chroniques est […]

Radiation Oncology 93:S10. University of Toronto, Toronto, ON, Canada; Women’s College Hospital, Toronto, ON, Canada Purpose/Objective(s): While meta-analysis has shown metformin use in diabetic patients […]

2013 Breast Cancer Symposium. Abstract 128. J Clin Oncol 31 (suppl 26; abstr 128). University of Toronto, Toronto, ON, Canada; St. Michael’s Hospital, Toronto, ON, […]

Cuadernos de Gestión 6:19-24. Published in Spanish. Fundació Jordi Gol i Gurina, Barcelona, Spain No abstract

Gesundheits- und Sozialpolitik 1-2:8-15. Published in German. Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA Advances in information technology, electronic billing, and diagnostic […]

Reston, VA, USA: AdvanceMed Corp. AdvanceMed Corp., Reston, VA, USA AdvanceMed Corporation, a DynCorp company, is supporting the TRICARE Management Activity (TMA) and its health […]

Working paper: Informed Purchasing Series. Hamilton, NJ, USA: Center for Health Care Strategies. Center for Health Programs Development and Management, University of Maryland, Baltimore County, […]

Minneapolis, MN, USA: Park Nicollet Institute, Minnesota Department of Health, Minnesota Department of Human Services. Park Nicollet Institute and Minnesota Department of Health, Minneapolis, MN, […]

Baltimore, MD, USA: Johns Hopkins University (doctoral dissertation). Johns Hopkins University, Baltimore, MD, USA STATEMENT OF THE PROBLEM: Hypertension is one of the most common […]

JHQ Online :W5-24 – W5-29. McKesson Medical Management Group, Newton, MA. Rising healthcare costs coupled with diminishing financial  resources are stimulating changes in the organization […]

Canadian Journal of Diabetes 33:281. Provincial Health Services Authority, Vancouver, BC, Canada AIMS: Lower utilization of medical resources by immigrants are often observed in self-reported […]

Aten Primaria 42:420-430. Published in Spanish. Dirección de Planificación, Badalona Serveis Assistencials S.A., Badalona, Barcelona, Spain OBJECTIVES: Mediterranean populations are traditionally considered to be associated […]

Insurance Markets and Companies: Analyses and Actuarial Computations 2:7-15. University of Minnesota, Minneapolis, MN, USA In this paper, a Medical Productivity Index (MPI) is proposed […]

Institut national d’excellence en santé et en services sociaux (INESSS). Rapport rédigé par Marie-Dominique Beaulieu, Marie‐Pascale Pomey, Brigitte Côté, Claudio Del Grande, Monia Ghorbel, Phuong […]

Winnipeg, MB, Canada: Manitoba Centre for Health Policy. Manitoba Centre for Health Policy, Winnipeg, MB, Canada The Manitoba Centre for Health Policy (MCHP) in conjunction […]

Ugeskrift for Laeger 176:380-381. Published in Danish. Syddansk University, Odense, Denmark

This document provides a high-level overview of how the predictive models within the Johns Hopkins Adjusted Clinical Groups® (ACG) System are designed and the factors […]

Morbidity Burden in persons with Multiple Chronic Conditions and Identification of inequitable resource use in Israel Dr. Efrat Shadmi Faculty of Social Welfare and Health […]

Tokyo Medical and Dental University Application of the ACG System to Medical Claim Records in Japan Koichi Kawabuchi

Johns Hopkins ACG System Consistent High Users: Characteristics and Identification Hsien-Yen Chang, PhD. Research Associate

Johns Hopkins ACG System Risk Adjustment and Predictive Modeling in Health Reform Jonathan Weiner

Johns Hopkins ACG System Innovations in Measuring and Managing Care Coordination Craig Pollack, MD, MHS

The King’s Fund The Future of Integrated Care in the NHS Professor Chris Ham Chief Executive  

A New Day in Population Health Management: Innovations in Risk Adjustment and Predictive Modeling Welcome and Opening Remarks  Jonathan P. Weiner, DRPH Professor and CEO […]

CMAJ Open 3:E182. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada; University of Toronto, Toronto, ON, Canada BACKGROUND: Continuity of care has been shown to […]

Objective To determine if there has been an increase in preventive care among adults with IDD as a result of the publication of the Canadian […]

Abstract Introduction and hypothesis Vaginal apical suspension is essential for the surgical treatment of pelvic organ prolapse (POP). We aim to evaluate whether the method […]

Abstract Purpose Studies examining symptom differences between surgeries for breast cancer patients rarely incorporate the effects of adjuvant treatment choice. We sought to understand differences […]

Abstract   BACKGROUND Rapid repeat pregnancy within 12 months of a live birth is associated with adverse perinatal outcomes. We evaluated the risk for rapid […]

Abstract   Objectives To assess two models for the prediction of health utilization and functions using standardized in-person assessments of frailty and administrative claims-based geriatric […]

ABSTRACT Objectives: To identify care needs among Medicaid and Medicare patients in an all-condition care management program involving case managers (CMs) and community health workers (CHWs), […]

Abstract Study objective We aim to characterize the incidence and risk factors for opioid-related and all-cause mortality in the year after an emergency department (ED) […]

Abstract Background Colonoscopy is a key resource used to diagnose colorectal cancer (CRC). This study evaluated the relationship between colonoscopy availability and the length of […]

Abstract Background Variation in health care, when not based on patient preference, may result in poorer care. We determined whether variation in health services utilization, […]

Abstract Treating mental illnesses in primary care is increasingly emphasized to improve access to mental health services. Although family physicians (FPs) or general practitioners are […]

Abstract Objectives : Frailty has been increasingly recognized as an important risk factor for vascular procedures. To assess the impact of frailty on clinical outcomes and […]

Abstract Background People who experience incarceration have poor health across a variety of indicators, but we lack population-level data on the health of females in […]

Abstract Background Hiatal hernias are often repaired concurrently with bariatric surgery to reduce risk of gastroesophageal reflux disease–related complications. Objectives To examine the association between […]

ABSTRACT Background The adjusted clinical group (ACG) is a diagnosis-based case-mix adjustment system, which has been widely evaluated in several countries other than Taiwan. The […]

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 […]

Abstract Objective Multi-morbidity contributes to mortality and hospitalisation in COPD, but it is uncertain how this interacts with disease severity in risk prediction. We compared […]

Abstract Background High-intensity cancer surgery is increasingly common among older adults. However, these patients are at high-risk for unexpected intensive care unit (ICU) admissions after […]

Abstract Background Advances in healthcare delivery have allowed for the increase in the number of ambulatory surgery procedures performed in Canada. Despite these advances, patients […]

Abstract Background People with intellectual/developmental disabilities (IDD) are reportedly intensive users of forensic inpatient services. Methods Using administrative data, we identified people with and without […]

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 […]

Abstract Objectives Reconstructive surgery may result in prolonged postoperative recovery, especially in frail patients, which in turn may impact delivery of adjuvant therapy. To date, […]

Abstract Survivors of childhood and adolescent cancers are at increased risk for late effects including subsequent cancer, cardiotoxicities, and poor psychosocial health. Few studies have […]

Abstract Introduction More health systems are implementing strategies to understand and address patient social health, also known as social health integration. We examine the impact […]

Abstract Background Respiratory syncytial virus (RSV) causes substantial morbidity and mortality among adults. Given recent RSV vaccine authorizations, data on groups at highest risk are […]

Abstract Background and objectives Neurofibromatosis type 1 (NF1) is a multisystemic disease, characterized by cutaneous manifestations and peripheral nerve sheath tumors. Patients also have a […]

Abstract Introduction Pulmonary lobectomy represents the primary curative treatment for lung cancer in older adults, yet frailty’s impact on critical early postoperative outcomes remains inadequately […]

ABSTRACT Background Prurigo nodularis patients face a significant burden of comorbidities, necessitating a comprehensive approach to care. We aimed to explore the association between prurigo […]

Abstract Background: Use of artificial intelligence (AI) and machine learning (ML) tools is now common in the advancement of healthcare services and clinical risk estimation. Legacy […]

ABSTRACT Background Predictive risk stratification tools are widely used to support proactive care for older adults, yet head-to-head external validation within local English health systems […]

Abstract Background Senior high cost health care users (HCU) are a priority for many governments. Little research has addressed regional variation of HCU incidence and […]

BMJ 348:g3284. University of Toronto, Toronto, ON, Canada; Institute for Clinical Evaluative Sciences, Toronto, ON, Canada OBJECTIVES: To identify a cut point in annual surgeon […]

Med Care 47:105-114. Division of Research, Kaiser Permanente Medical Care Program, Northern California Region, Oakland, CA, USA BACKGROUND: Analyzing health conditions and medical utilization of […]

Med Care 52:557-564. University of Ottawa, Ottawa, ON, Canada; Ottawa Hospital Research Institute, Ottawa, ON, Canada IMPORTANCE: Previous research has demonstrated that patients undergoing elective […]

Eur J Intern Med 26:197-202. Basque Institute for Healthcare Innovation, Barakaldo, Spain; Osakidetza (Basque Health Service), Erandio, Spain; Department of Health, Vitoria-Gasteiz, Spain; World Health […]

Palliat Med 29:147-156. Queen’s University, Kingston, ON, Canada; University of Toronto, Toronto, ON, Canada; Institute for Clinical Evaluative Sciences, Toronto, ON, Canada; Queen’s University, Kingston, […]

Health Econ 11:165-174. Department of Health Services, Boston University School of Public Health, Boston, MA, USA To mitigate selection triggered by capitation payments, risk-adjustment models […]

CMAJ Western University, London, ON, Canada; London Health Sciences Centre, London, ON, Canada; Institute for Clinical Evaluative Sciences (ICES) Western, London, ON, Canada BACKGROUND: Many […]

BMC Health Serv Res 15:63. Bruyère Research Institute, Ottawa, ON, Canada; University of Ottawa, Ottawa, ON, Canada; McGill University, Montreal, QC, Canada; Ottawa Hospital Research […]

PLoS One 10:e0138907. University of Toronto, Toronto, ON, Canada; Ontario Institute for Cancer Research/Cancer Care Ontario, Toronto, ON, Canada; Institute for Clinical Evaluative  Sciences, Toronto, ON, […]

Healthc Policy 8:79-90. University of British Columbia, Vancouver, BC, Canada OBJECTIVES: Amenable mortality is proposed as a health system performance measure, and has been used […]

Med Care 33:783-795. Indiana University Department of Medicine, Indianapolis, IN, USA. Different types of medication prescribed during a 6-month period for the treatment and management […]

BMC Public Health 11:609. Faculty of Social Welfare and Health Sciences, University of Haifa, Mount Carmel, Israel BACKGROUND: The ability to accurately detect differential resource […]

CMAJ 180:E72-E81. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada BACKGROUND: Primary care reform in Ontario, Canada, included the initiation of a blended capitation model […]

BMC Health Serv Res 8:53. Catalan Institute of Oncology, IDIBELL, L’Hospitalet, Barcelona, Spain BACKGROUND: In view of rapidly increasing prescription costs, case-mix adjustment should be […]

BMC Public Health 6:36. Ryd Primary Health Care Centre, Linköping, Sweden BACKGROUND: The objective was to explore the usefulness of the morbidity risk adjustment system […]

J Ambul Care Manage 18:56-72. Harvard School of Public Health, Harvard University, Boston, MA, USA This article presents our principles for developing performance measures to […]

Health Aff 10:140-154. Johns Hopkins University School of Hygiene and Public Health, Baltimore, MD, USA Differences between the health services utilization patterns of persons enrolled […]

CMAJ 173:1173-1177. Radiology, University of Manitoba, Winnipeg, MB, Canada INTRODUCTION AND HYPOTHESIS: An inverse relationship exists between socio-economic status (SES) and osteoporotic fractures. In publicly […]