Abstracts tagged "Epidemiology"

Abstract Number: 0565 • ACR Convergence 2020
In Those with Unilateral Frequent Knee Pain, Between-Limb Differences in Stance Time During Walking Increase the Risk of Frequent Pain in the Other Knee: The MOST Study
Patrick Corrigan¹, David Felson², Cara Lewis³, K. Douglas Gross⁴, Michael Nevitt⁵, Beth Lewis⁶, James Torner⁷ and Joshua Stefanik¹, ¹Northeastern University, Boston, MA, ²Boston University School of Medicine, Boston, MA, ³Boston University, Brookline, MA, ⁴MGH Institute of Health Professionals, Boston, MA, ⁵Department of Epidemiology and Biostatistics, University of California San Francisco, Orinda, CA, ⁶University of Alabama at Birmingham, Birmingham, ⁷University of Iowa, Iowa City, IA
Background/Purpose: Knee osteoarthritis (OA) commonly begins as a unilateral disease, with pain in only one knee. Yet 88% of persons with unilateral knee OA develop…
Abstract Number: 1003 • ACR Convergence 2020
Long-term Weight Changes and Risk of Rheumatoid Arthritis Among Women in a Prospective Cohort: A Marginal Structural Model Approach
Nathalie Marchand¹, Jeffrey Sparks², Kazuki Yoshida³, Susan Malspeis⁴, Xuehong Zhang⁵, Karen Costenbader⁶, Elizabeth Karlson¹ and Bing Lu⁷, ¹Brigham and Women's Hospital, Boston, MA, ²Division of Rheumatology, Inflammation, and Immunity; Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, ³Brigham & Women's Hospital and Harvard Medical School, Boston, MA, ⁴Brigham and Women's Hospital, Boston, ⁵Brigham and Women's Hospital and Channing Division of Network Medicine, Boston, MA, ⁶Brigham and Women's Hospital and Harvard Medical School, Boston, MA, ⁷Brigham and Women's Hospital and Harvard Medical School, Newton, MA
Background/Purpose: The risk of rheumatoid arthritis (RA) has been shown to be elevated among overweight and obese women in several studies, but whether weight gain…
Abstract Number: 1061 • ACR Convergence 2020
Daily Myositis Symptom Changes Collected via a Smartphone-Based App Are Associated with Flare Occurrence – Providing Evidence of Potential Digital Biomarkers
Alexander Oldroyd¹, Belay Yimer², Max Little³, William Dixon² and Hector Chinoy⁴, ¹University of Manchester, Manchester, United Kingdom, ²Centre for Epidemiology Versus Arthritis, University of Manchester, Manchester, United Kingdom, ³University of Birmingham, Birmingham, United Kingdom, ⁴The University of Manchester, Manchester, United Kingdom
Background/Purpose: The concept of idiopathic inflammatory myopathy (IIM) flare is widely used, although no consensus definition exists. Studies have demonstrated the feasibility and utility of…
Abstract Number: 1436 • ACR Convergence 2020
Incidence Rate, Predictors and Outcome of Stroke in Patients with ANCA Associated Vasculitis – A Population-based Study
Dennis Tabakovic¹, Rona Smith², David Jayne³ and Aladdin Mohammad⁴, ¹Lund University, Lund, Skane Lan, Sweden, ²University of Cambridge, Cambridge, United Kingdom, ³Department of Medicine, Vasculitis and Lupus Research Group, University of Cambridge, Cambridge, UK, Cambridge, United Kingdom, ⁴Lund University, Lund, Sweden. Department of Medicine, Vasculitis and Lupus Research Group, University of Cambridge, Cambridge, UK, Lund, Sweden
Background/Purpose: To study the incidence rate, predictors and outcome of stroke in patients with ANCA-associated vasculitis (AAV) within a defined population in southern Sweden.Methods: The…
Abstract Number: 1662 • ACR Convergence 2020
Do Weight-bearing versus Non-weight-bearing Pain Reflect Different Pain Mechanisms in Knee Osteoarthritis?: The Multicenter Osteoarthritis Study
Jean Liew¹, John Farrar², Na Wang³, Lisa Carlesso⁴, Kosaku Aoyagi³, Laura Frey Law⁵, Cora Lewis⁶, Michael Nevitt⁷ and Tuhina Neogi³, ¹University of Washington, Seattle, WA, ²University of Pennsylvania, Philadelphia, PA, ³Boston University School of Medicine, Boston, MA, ⁴McMaster University, Hamilton, ON, Canada, ⁵University of Iowa, Iowa City, IA, ⁶University of Alabama Birmingham, Birmingham, AL, ⁷University of California, San Francisco, San Francisco, CA
Background/Purpose: Pain with weightbearing in knee OA is thought to be related to the activation of nociceptors; however, this is not considered the sole mechanism…
Abstract Number: 1984 • ACR Convergence 2020
Causal Pathways to Health-Related Quality of Life in Children with Juvenile Idiopathic Arthritis: Results from the ReACCh-Out Cohort
Kiem Oen¹, Jiahao Tian², Thomas Loughin², Roberta Berard³, Mercedes Chan⁴, Ciaran Duffy⁵, Brian Feldman⁶, Adam Huber⁷, Deborah Levy⁸, Dax G. Rumsey⁹, Natalie Shiff¹⁰, Shirley Tse¹¹, Lori Tucker⁴, Karen Watanabe-Duffy⁵ and Jaime Guzman¹², ¹University of Manitoba, Toronto, ON, Canada, ²Simon Fraser University, Burnaby, BC, Canada, ³London Health Sciences Centre, London, ON, Canada, ⁴BC Children's Hospital, Vancouver, BC, Canada, ⁵Children's Hospital of Eastern Ontario, Ottawa, ON, Canada, ⁶The Hospital for Sick Children, Toronto, ON, Canada, ⁷Dalhousie University, Halifax, NS, Canada, ⁸Division of Rheumatology, The Hospital for Sick Children, Toronto, ON, Canada, ⁹University of Alberta, Edmonton, AB, Canada, ¹⁰Florida, Gainesville, FL, ¹¹SickKids, Toronto, ON, Canada, ¹²University of British Columbia and BC Children's Hospital, Vancouver, BC, Canada
Background/Purpose: The relative roles of disease activity and disability as determinants of health-related quality of life (HRQoL) in children with JIA have been controversial; sometimes…
Abstract Number: 0055 • ACR Convergence 2020
Racial and Sex-based Disparities in Health Care Utilization: Eye Inflammation as a Paradigm
Krati Chauhan¹ and James Rosenbaum², ¹Southern Illinois University - School of Medicine, Springfield, IL, ²Oregon Health & Science University, Portland, OR
Background/Purpose: Disparities in health care utilization based on sex, race, education, or income affect outcomes in rheumatologic care. We have used ocular inflammatory and infectious…
Abstract Number: 0525 • ACR Convergence 2020
Epidemiology of Thromboembolic Complications Among Hospitalized Patients with Antiphospholipid Syndrome in the United States
Lauren Mathias¹, Aditya Mantha², Kristen Mathias³ and Glenn Ehresmann¹, ¹University of Southern California, Division of Rheumatology, Los Angeles, CA, ²University of Southern California, Department of Medicine, Los Angeles, CA, ³University of Chicago, Department of Medicine, Chicago, IL
Background/Purpose: Antiphospholipid syndrome (APLS) is characterized by arterial and venous thrombosis, often in the setting of an underlying systemic disease. Few studies have described the…
Abstract Number: 0593 • ACR Convergence 2020
Patient Characteristics and Factors Affecting Decision-Making Regarding Total Knee Replacement by Different Types of Physicians Treating Patients with Knee OA
Angela Bedenbaugh¹, Vinson Lee¹, Gary Oderda², Sarah Kennedy¹, Jeyanesh Tambiah¹, Diana Brixner² and Timothy McAlindon³, ¹Samumed, LLC, San Diego, CA, ²University of Utah, Salt Lake City, UT, ³Tufts Medical Center, Boston, MA
Background/Purpose: Total knee replacement (TKR) is considered an effective knee OA treatment and is a commonly performed orthopedic procedure that relieves pain and improves function and…
Abstract Number: 1005 • ACR Convergence 2020
Risk of Non-vertebral Fractures Among Rheumatoid Arthritis Patients Treated with Biologic or Targeted-Synthetic DMARDs: A Multi-Database Comparative Safety Study
Ajinkya Pawar¹, Rishi Desai¹, Mengdong He¹, Lily Bessette¹ and Seoyoung Kim², ¹Brigham and Women's hospital, Boston, ²Brigham and Women's Hospital, Boston, MA
Background/Purpose: Rheumatoid arthritis (RA) increases risk of osteoporosis and fractures. However, limited head-to-head comparative data exists on the risk of non-vertebral osteoporotic fractures (NVFs) among…
Abstract Number: 1080 • ACR Convergence 2020
Sensitivity and Specificity of the 2017 EULAR/ACR Criteria for Idiopathic Inflammatory Myopathies in a Cohort of Patients from Latin America
Antonia Maria Valenzuela Vergara¹, Magdalena Torres¹ and Alejandro Deves¹, ¹Pontificia Universidad Catolica de Chile, Santiago de Chile, Chile
Background/Purpose: Idiopathic inflammatory myopathies (IIM) are a heterogeneous group of diseases characterized by muscle inflammation and internal organ involvement. The Bohan & Peter (B&P) criteria…
Abstract Number: 1459 • ACR Convergence 2020
The Association of Frequent Knee Bending with Trajectories of Pain and Physical Function over 8 Years in Knee Osteoarthritis
Jason Jakiela¹, Dana Voinier¹, Thomas Bye¹, Maria Tukis¹, Kiely Konyak¹, Dylan Orloff¹ and Daniel White¹, ¹University of Delaware, Newark, DE
Background/Purpose: Frequent bending increases loading at the knee and is a risk factor for worsening knee pain associated with knee osteoarthritis (OA). Knee bending is…
Abstract Number: 1685 • ACR Convergence 2020
Impact of the COVID-19 Pandemic Among Children with Rheumatic Diseases from Around the Globe
Jonathan Hausmann¹, Kevin Kennedy², Salman Surangiwala³, Maggie Larche⁴, Karen Durrant⁵, Rashmi Sinha⁶ and Emily Sirotich⁴, ¹Boston Children's Hospital / Beth Israel Deaconess Medical Center, Cambridge, MA, ²McMaster University, Hamilton, Canada, ³Queen’s School of Medicine, Kingston, Canada, ⁴McMaster University, Hamilton, ON, Canada, ⁵Autoinflammatory Alliance, San Francisco, CA, ⁶SJIA Foundation, Cincinnati
Background/Purpose: Children with rheumatic diseases face unknown risks in the setting of the COVID-19 pandemic. These children are often immunosuppressed due to their underlying disease…
Abstract Number: 2013 • ACR Convergence 2020
Substantial Lifetime Risk of Developing Ankylosing Spondylitis (Axial Spondyloarthritis) for Relatives. Evidence from a 35-Year Follow-up Family Study of a Swiss Cohort
Sjef van der Linden¹, Peter Villiger², Zhixiu Li³, Matthew Brown⁴, Heinz Baumberger⁵, Hermine Zandwijk⁶ and Muhammad Khan⁷, ¹Department of Rheumatology, Immunology and Allergology, University of Bern, Inselspital, Bern, Switzerland, Mortroux, Belgium, ²Department of Rheumatology, Immunology and Allergology, University of Bern, Inselspital, Switzerland, Bern, Switzerland, ³Queensland University of Technology (QUT), Translational Genomics Group, School of Biomedical Sciences, Institute of Health and Biomedical Innovation, Translational Research Institute, Princess Alexandra Hospital, Brisbane, Qld, Australia, Brisbane, Queensland, Australia, ⁴Guy's and St Thomas, NHS Foundation Trust and King's College London NIHR Biomedical Research Centre, King's College London, London, United Kingdom, London, United Kingdom, ⁵Retired, Flims, Tajikistan, ⁶Retired, Mortroux, Belgium, ⁷Case Western Reserve University, Cleveland OH, Westlake, OH
Background/Purpose: Familial occurrence of ankylosing spondylitis (AS) is well known. Our follow-up study aimed at assessing the incidence of clinically defined AS among first degree…
Abstract Number: 0086 • ACR Convergence 2020
Geographic Distribution of Eosinophilic Fasciitis Cases in Massachusetts and Associated Environmental Triggers
Bina Kassamali¹, Anastasiya Muntyanu², Ruth Ann Vleugels³ and Avery LaChance³, ¹Harvard Medical School, Brigham and Women's Hospital, Boston, MA, ²McGill University, Montreal, QC, Canada, ³Brigham and Women's Hospital, Boston, MA
Background/Purpose: Eosinophilic fasciitis (EF) is a rare fibrosing disorder of the fascia characterized by induration progressing proximally along the upper and lower extremities. Given the…

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