Abstracts tagged "Administrative Data"

Abstract Number: 0399 • ACR Convergence 2025
External Validation of Claims-based Algorithms for Newly Diagnosed Juvenile Idiopathic Arthritis
Daniel Horton¹, Lauren Parlett², Yuyang Zhu³, Sanika Rege⁴, Patricia Hoffman⁵, Daniel Reiff⁶, Sarah McGuire⁷, Sonia Pothraj⁸, Cynthia Salvant⁹, Lakshmi Moorthy¹, Cecilia Huang⁴, Dawn Koffman⁴, Matthew Iozzio³, Alicia Iizuka⁴, Kevin Schott², Stephen Crystal¹⁰, Amy Davidow¹¹, Tobias Gerhard⁴, Kevin Haynes¹², Brian Strom¹³, Daniel Beachler² and Carlos Rose¹⁴, ¹Department of Pediatrics, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, ²Carelon Research, Inc, Wilmington, DE, ³Rutgers Center for Pharmacoepidemiology and Treatment Science, Institute for Health, Health Care Policy and Aging Research, Rutgers University, New Brunswick, NJ, USA, New Brunswick, ⁴Rutgers Center for Pharmacoepidemiology and Treatment Science, Institute for Health, Health Care Policy and Aging Research, Rutgers University, New Brunswick, NJ, USA, New Brunswick, NJ, ⁵Hospital for Special Surgery, New York, NY, ⁶Boys Town National Research Hospital, Boys Town, ⁷Department of Obstetrics and Gynecology, Cooper Medical School, Camden, Camden, NJ, ⁸Washingtonville Pediatrics, Washingtonville, NY, ⁹Albany Medical Center, Albany, NY, ¹⁰Rutgers Center for Health Services Research, Institute for Health, Health Care Policy and Aging Research, New Brunswick, NJ, ¹¹New Jersey Medical School, Newark, NJ, ¹²Janssen Research & Development, Titusville, NJ, ¹³Rutgers Biomedical and Health Sciences, New Brunswick, ¹⁴Thomas Jefferson University, Wilmington, DE
Background/Purpose: Administrative claims databases enable research in large populations with JIA. We previously showed that machine learning (ML)-based algorithms accurately identify new JIA diagnoses within…
Abstract Number: 1901 • ACR Convergence 2025
Epidemiology of Adult-Onset Still’s Disease in South Korea: A Nationwide Study Using Health Insurance Claims Data
Mihye Kwon¹, Younghee Jung², Chung-il Joung¹ and Jeeyoung Hong¹, ¹Konyang University Hospital, Daejeon, Republic of Korea, ²Chungnam National University Hospital, Daejeon, Republic of Korea
Background/Purpose: Adult-onset Still’s disease (AOSD) is a rare systemic autoinflammatory disorder characterised by heterogeneity in clinical course and long-term outcomes. Despite its rarity being recognised…
Abstract Number: 0283 • ACR Convergence 2025
The Performance of Rule-Based Algorithms to Identify Patients With Idiopathic Inflammatory Myopathies in Electronic Health Records
Ana Valle¹, Amy Vo², Rochelle Castillo¹, Yumeko Kawano³, Leah Santacroce³, Daniel Solomon⁴, Katherine Liao³ and Candace Feldman³, ¹Brigham and Women's Hospital, Brookline, MA, ²Harvard Medical School, Boston, ³Brigham and Women's Hospital, Boston, MA, ⁴Division of Rheumatology, Inflammation, and Immunity, Brigham and Women's Hospital, Boston, MA
Background/Purpose: Idiopathic inflammatory myopathies (IIM; including dermatomyositis, polymyositis, and inclusion body myositis) are heterogenous systemic inflammatory conditions that cause significant disability and morbidity. The study…
Abstract Number: 1883 • ACR Convergence 2025
Temporal Patterns of Cardiometabolic Comorbidities Before and After Psoriatic Arthritis Diagnosis: A Nationwide Retrospective Study from Poland.
Batko Bogdan¹, Mateusz Szeląg², Krzysztof Batko³, Magdalena Krajewska-Włodarczyk⁴, Zbigniew Żuber⁵, Marcin Stajszczyk⁶, Brygida Kwiatkowska⁷ and Tomasz Guzik⁸, ¹Department of Rheumatology and Immunology, Faculty of Medicine and Health Sciences, Andrzej Frycz Modrzewski University, Krakow, Poland, Kraków, Poland, ²Ministry of Health, Warsaw, Poland, ³Department of Dermatology, University Hospital in Krakow, Poland, Krakow, Poland, ⁴University of Warmia & Mazury, Olsztyn, Poland, ⁵Department of Pediatrics, Faculty of Medicine and Health Sciences, Andrzej Frycz Modrzewski University, Krakow, Poland, Krakow, Poland, ⁶Department of Rheumatology and Autoimmune Diseases, Silesian Center for Rheumatology, Orthopedics and Rehabilitation, Ustroń, Poland, Ustron, Poland, ⁷Clinic of Early Arthritis, National Institute of Geriatrics, Rheumatology and Rehabilitation, Warsaw, Poland, Warsaw, Poland, ⁸BHF Centre for Research Excellence, Centre for Cardiovascular Sciences, The University of Edin-burgh, Edinburgh, UK, Edinburgh, United Kingdom
Background/Purpose: While the association between psoriatic arthritis (PsA) and cardiometabolic disorders is established, the temporal sequence and progression of these comorbidities remain poorly characterized. To…
Abstract Number: 0178 • ACR Convergence 2025
Prevalence and factors associated with virtual rheumatology care utilization in a national population of Veterans with RA
Beth Wallace¹, Yuqing Gao², Shirley Cohen-Mekelburg² and Akbar Waljee², ¹Michigan Medicine, VA Ann Arbor Healthcare System, Ann Arbor, MI, ²VA Ann Arbor Healthcare Center, Ann Arbor
Background/Purpose: Up to half of RA patients receive virtual rheumatology care, which is associated with high satisfaction but potentially lower quality. We aimed to identify…
Abstract Number: 1877 • ACR Convergence 2025
Demographics and trends of Inflammatory Arthritis-Related Mortality in the United States, 1999–2019
Aishwarya Sudheer¹, Ishan Jani², Sarath Lal Mannumbeth Renjithlal² and Qi Wang³, ¹Saint Vincent Hospital, Worcester, MA, ²Rochester General Hospital, Rochester, NY, ³Metrohealth System/Case Western Reserve University, Cleveland, OH
Background/Purpose: The study aims to evaluate the racial, sex-related and urbanization-related trends of deaths in patients with inflammatory polyarthropathies in the United States between 1999…
Abstract Number: 0169 • ACR Convergence 2025
The High Disease Burden of Connective Tissue Disorder-Interstitial Lung Disease in the USA Demonstrates an Unmet Need for Earlier Diagnosis and Treatment
Sally Wetten¹, George Mu², Keele E. Wurst³, Roger A. Levy⁴, Ben Newth⁵, Svetlana I. Nihtyanova⁶ and Elaine Irving⁷, ¹GSK, Epidemiology, Stevenage, United Kingdom, ²GSK, Statistics, Collegeville, PA, ³GSK, Immunology and Emerging Epidemiology, Durham, NC, ⁴GSK, Specialty Care, Global Medical Affairs, Collegeville, PA, ⁵GSK, Specialty Care, Global Medical Affairs, London, United Kingdom, ⁶GSK, Clinical Sciences, Research & Development, London, United Kingdom, ⁷GSK, Clinical, Stevenage, United Kingdom
Background/Purpose: Interstitial lung disease (ILD) is a serious pulmonary manifestation that can occur across all connective tissue disorders (CTD). Aberrant immune-mediated inflammation and fibrosis leads…
Abstract Number: 2680 • ACR Convergence 2025
High Health Care Utilization Preceding Diagnosis of Juvenile Idiopathic Arthritis
Anna Costello¹, Rui Xiao¹, Jahan Jazayeri¹, Timothy Brandon¹, Xuemei Zhang¹, Irit Rasooly¹ and Pamela Weiss², ¹Children's Hospital of Philadelphia, Philadelphia, PA, ²Childrens Hospital of Philadelphia, Philadelphia, PA
Background/Purpose: Timely diagnosis of Juvenile Idiopathic Arthritis (JIA) enables early initiation of therapy and improves outcomes, yet JIA patients often experience circuitous pathways to diagnosis.…
Abstract Number: 1583 • ACR Convergence 2025
Epidemiology, Outcome and Expenditures of Hospitalized Patients with Systemic Sclerosis: National Inpatient Sample 2021
Patompong Ungprasert¹ and Paul Kroner², ¹Cleveland Clinic, Cleveland, OH, Cleveland Heights, OH, ²Riverside Health System, Newport News, VA
Background/Purpose: The inpatient epidemiology, morbidity, mortality, and healthcare expenditures of patients with systemic sclerosis (SSc) are not well-characterized. This study aims to utilize a nationwide…
Abstract Number: 0145 • ACR Convergence 2025
Population Assessment of Cancer Incidence among Patients with Idiopathic Inflammatory Myopathies in North Carolina
Astia Allenzara¹, Ben Albright², Xi Zhou², Amanda Nelson³, Laura Green⁴, Katherine Reeder-Hayes⁴, Jennifer Lund⁴, Caroline Thompson⁴ and Chris Baggett⁴, ¹UNC, Chapel Hill, NC, ²University of North Carolina, Chapel Hill, NC, ³University of North Carolina at Chapel Hill, Chapel Hill, NC, ⁴University of North Carolina, Chapel Hill
Background/Purpose: Cancer is highly prevalent and a leading cause of death for patients with Idiopathic Inflammatory Myopathies (IIM). Evaluating cancer type and stage at diagnosis…
Abstract Number: 2642 • ACR Convergence 2025
Impact of Rheumatoid Arthritis Therapeutic Classes on Risk of Major Adverse Cardiovascular Events and Venous Thromboembolism: A Population-Based Cohort Study
Mohammad Movahedi¹, Angela Cesta¹, Sibel Aydin², Pooneh Akhavan³, Tetyana Kendzerska⁴, Claire Bombardier¹ and Bindee Kuriya⁵, ¹Toronto General Hospital Research Institute, University Health Network, Toronto, ON, Canada, ²Department of Medicine, University of Ottawa, The Ottawa Hospital Research Institute, Ottawa, ON, Canada, ³self-employed, Toronto, ON, Canada, ⁴Ottawa Hospital Research Institute, Mississuaga, ON, Canada, ⁵University of Toronto - Toronto, Toronto, ON, Canada
Background/Purpose: Patients with rheumatoid arthritis (RA) are at increased risk of major adverse cardiovascular events (MACE) and venous thromboembolism (VTE). Inflammation is a driver of…
Abstract Number: 1497 • ACR Convergence 2025
Acute Care Utilization in Patients with Antiphospholipid Syndrome and/or Systemic Lupus Erythematosus
Megan Barber¹, Fengjuan Yang², Leslie Skeith², Danielle Southern³ and Ann Clarke¹, ¹Division of Rheumatology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada, ²University of Calgary, Calgary, AB, Canada, ³University of Calgary, Calgary, Canada
Background/Purpose: Little is known about acute care utilization in patients with APS and/or SLE. This study focuses on hospitalizations, intensive care unit (ICU) admissions and…
Abstract Number: 2627 • ACR Convergence 2025
Risk of Adverse Pregnancy Outcomes in Individuals with Rheumatic Diseases Using Prenatal Antirheumatic Drugs: a Population-Based Cohort Study
Shenthuraan Tharmarajah¹, Dharini Mahendira², Swaleh Hussain¹, Howard Berger³, Sara Guilcher⁴, Lisa McCarthy⁴ and Mina Tadrous¹, ¹University of Toronto, Toronto, ON, Canada, ²St Michael's Hospital, Toronto, Canada, ³St. Michael's Hospital, Toronto, Canada, ⁴University of Toronto, Toronto, Canada
Background/Purpose: Disease-modifying antirheumatic drugs (DMARDs) are the primary class of drug therapies generally used to treat rheumatic diseases, such as rheumatoid arthritis (RA), systemic lupus…
Abstract Number: 1434 • ACR Convergence 2025
Safety of Prescription NSAIDs in Adults with IBD: Data from a Large Administrative Claims Cohort
Adam Mayer¹, Rui Xiao², Meenakshi Bewtra³, Michael George⁴ and Pamela Weiss⁵, ¹University of Pennsylvania/Children's Hospital of Philadelphia, Philadelphia, PA, ²Children's Hospital of Philadelphia, Philadelphia, PA, ³University of Pennsylvania, Philadelphia, ⁴University of Pennsylvania, Philadelphia, PA, ⁵Childrens Hospital of Philadelphia, Philadelphia, PA
Background/Purpose: The potential that nonsteroidal anti-inflammatory drugs (NSAIDs) may precipitate flares of inflammatory bowel disease (IBD) has limited their use in managing joint pain in…
Abstract Number: 2295 • ACR Convergence 2025
Autoantibody Profiles and Their Association with Organ Involvement in Primary Sjögren’s Syndrome: Insights from ESSDAI
Deepak Rath¹, Sholen Acharya² and Dr Alakendu Ghosh³, ¹John H Stroger Hospital Jr of Cook County, Chicago, Illinois, USA, ⁶⁰⁶¹², Chicago, IL, ²Department of Reproductive Medicine and Surgery, Government Medical College Thiruvananthapuram, Kerala, India, ⁶⁹⁵⁰⁰⁴, Chicago, IL, ³Self employed, Kolkata, West Bengal, India
Background/Purpose: To evaluate the clinical manifestations, systemic disease activity, and serological profile of patients of Primary Sjögren’s syndrome, and to assess associations between specific autoantibodies…

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