Abstracts tagged "Biostatistics"

Abstract Number: 0401 • ACR Convergence 2021
Item Reduction for the Assessment of Systemic Sclerosis-associated RAynaud’s Phenomenon (ASRAP) Questionnaire Using Data from the International Multicentre ASRAP Validation Study
John Pauling¹, Lan Yu², Christopher Denton³, Tracy Frech⁴, Ariane Herrick⁵, Laura Hummers⁶, Lesley Ann Saketkoo⁷, Ami Shah⁸, Dinesh Khanna⁹ and Robyn Domsic², ¹Royal National Hospital for Rheumatic Diseases, Bath, United Kingdom, ²University of Pittsburgh, Pittsburgh, PA, ³University College London Division of Medicine, Centre for Rheumatology and Connective Tissue Diseases, London, United Kingdom, ⁴University of Utah, Salt Lake City, UT, ⁵University of Manchester, Salford, United Kingdom, ⁶Johns Hopkins Univerisity, Baltimore, MD, ⁷University Medical Center - Comprehensive Pulmonary Hypertension Center, New Orleans, LA, ⁸Johns Hopkins Rheumatology, Baltimore, MD, ⁹University of Michigan, Ann Arbor, MI
Background/Purpose: The Assessment of Systemic sclerosis-associated RAynaud’s Phenomenon (ASRAP) questionnaire is a novel patient-reported outcome (PRO) instrument devised to assess the severity and impact of…
Abstract Number: 0499 • ACR Convergence 2021
Preliminary Assessment of Internal Reliability and Construct Validity of Long and Short-form Assessment of Systemic Sclerosis-associated RAynaud’s Phenomenon (ASRAP) Questionnaires
John Pauling¹, Lan Yu², Christopher Denton³, Tracy Frech⁴, Ariane Herrick⁵, Laura Hummers⁶, Lesley Ann Saketkoo⁷, Ami Shah⁸, Dinesh Khanna⁹ and Robyn Domsic², ¹Royal National Hospital for Rheumatic Diseases, Bath, United Kingdom, ²University of Pittsburgh, Pittsburgh, PA, ³University College London Division of Medicine, Centre for Rheumatology and Connective Tissue Diseases, London, United Kingdom, ⁴University of Utah, Salt Lake City, UT, ⁵University of Manchester, Salford, United Kingdom, ⁶Johns Hopkins Univerisity, Baltimore, MD, ⁷University Medical Center - Comprehensive Pulmonary Hypertension Center, New Orleans, LA, ⁸Johns Hopkins Rheumatology, Baltimore, MD, ⁹University of Michigan, Ann Arbor, MI
Background/Purpose: The Assessment of Systemic sclerosis-associated RAynaud’s Phenomenon (ASRAP) questionnaire is a novel patient-reported outcome instrument devised to assess the severity and impact of SSc-RP.…
Abstract Number: 0982 • ACR Convergence 2021
B Cells Repertoire Repartition Predicts Response to Methotrexate at 6 and 12 Months in Naïve RA: A Machine Learning Driven Approach
Aurelie Najm¹, Shrutii Sarda², Michelle Toro³, Loni Pickle³, Stephanie Ostresh³, Fraser Morton⁴, Geoffrey Lowman³, Andrew Felton⁵ and Carl Goodyear⁴, ¹Institute of Infection, Immunity and Inflammation, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom, ²Clinical Sequencing Division, Specialty Diagnostics Group, Thermo Fisher Scientific, South San Francisco-CA, United States, San Francisco, ³Clinical Sequencing Division, Specialty Diagnostics Group, Thermo Fisher Scientific, Carlsbad, CA, ⁴University of Glasgow, Glasgow, United Kingdom, ⁵VP, Platforms, Research & Applied, Specialty Diagnostics Group, South San Francisco, CA
Background/Purpose: The adaptive immune system plays a central role in Rheumatoid Arthritis (RA) pathogenesis. Moreover, the composition of the B cell repertoire and its perturbation…
Abstract Number: 1268 • ACR Convergence 2021
Predicting Adverse Pregnancy Outcomes in Women with Systemic Lupus Erythematosus: A Comparison of Machine Learning Methods
Melissa Fazzari¹, Marta Guerra², Jane Salmon² and Mimi Kim³, ¹Albert Einstein College of Medicine, Bronx, NY, ²Hospital for Special Surgery, New York, NY, ³Albert Einstein College of Medicine, Larchmont, NY
Background/Purpose: Nearly 20% of pregnancies in patients with Systemic lupus erythematosus (SLE) result in an adverse pregnancy outcome (APO); early identification of women with SLE…
Abstract Number: 1848 • ACR Convergence 2021
Untangling the Gut: A Phenome-Wide Association Study of Drugs and Diseases with Gastrointestinal Dysfunction in Systemic Sclerosis
Rory Maclean¹, Fiza Ahmed², Voon Ong³, Charles Murray⁴ and Christopher Denton⁵, ¹Royal Free Hospital & University College London, London, United Kingdom, ²Royal Free Hospital, Ilford, United Kingdom, ³University College London Medical School Royal Free Campus, London, United Kingdom, ⁴Royal Free Hospital, London, United Kingdom, ⁵University College London Division of Medicine, Centre for Rheumatology and Connective Tissue Diseases, London, United Kingdom
Background/Purpose: Gastrointestinal dysfunction (SSc-GI) is a significant burden to patients with systemic sclerosis (SSc), particularly in those with longstanding disease. The management of SSc-GI is…
Abstract Number: 0779 • ACR Convergence 2020
Antibody Responses to Epstein-Barr Virus Are Altered in the Pre-Clinical Period of Rheumatoid Arthritis
Sabrina Fechtner¹, Heather Berens², Elizabeth Bemis³, M Kristen Demoruelle², Carla J. Guthridge⁴, John Harley⁵, Judith James⁶, Jess Edison⁷, Kevin D. Deane⁸, Jill Norris⁹ and V. Michael Holers², ¹University of Colorado, Aurora, CO, ²University of Colorado, Denver, CO, ³Colorado School of Public Health Anschutz Medical Campus, Aurora, CO, ⁴Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁵Cincinnati Children's Hospital Medical Center/Univ of Cincinnati College of Medicine, Cincinnati, OH, ⁶Arthritis and Clinical Immunology Research Program, Oklahoma Medical Research Foundation;Department of Pathology, University of Oklahoma Health Sciences Center;Department of Medicine, University of Oklahoma Health Sciences Center, Edmond, OK, ⁷Walter Reed National Military Medical Center, Bethesda, ⁸2 Division of Rheumatology, University of Colorado School of Medicine, Anschutz Medical Campus, Aurora, CO, USA, Colorado, ⁹Colorado School of Public Health, Aurora, CO
Background/Purpose: Viral infections, including infection with Epstein-Barr virus (EBV), have been suggested as environmental risk factors for rheumatoid arthritis (RA). EBV infections are known to…
Abstract Number: 0795 • ACR Convergence 2020
Minimum Clinically Important Improvement in Patients with Rheumatoid Arthritis Associates with Gut Microbiome
Vinod Gupta¹, Kevin Cunningham², Benjamin Hur¹, John Davis¹ and Jaeyun Sung¹, ¹Mayo Clinic, Rochester, MN, ²University of Minnesota, Minneapolis, MN
Background/Purpose: Within the past decade, there have been several major discoveries in cross-sectional gut microbiome studies suggesting that dysbiosis of the gut microbiota is a…
Abstract Number: 0806 • ACR Convergence 2020
Identification and Adjustment for Factors Associated with Clinical Response in Rheumatoid Arthritis Clinical Trials to Improve Comparisons of Treatment Efficacy
Anthony Cordisco¹ and Joshua Baker¹, ¹Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
Background/Purpose: Numerous clinical trials have been published in rheumatoid arthritis (RA), but comparing efficacies of disease-modifying anti-rheumatic drugs (DMARDs) is complicated by a lack of…
Abstract Number: 1300 • ACR Convergence 2020
Identifying Cognitive Impairment in Patients with Systemic Lupus Erythematosus Using Hidden Markov Models: A Bayesian Approach
Juan Pablo Diaz-Martinez¹, Kathleen Bingham², Robin Green³, Dorcas Beaton⁴, Mahta Kakvan¹, Lesley Ruttan³, Carmela Tartaglia⁵, Marvin Fritzler⁶, May Choi⁷, Jiandong Su¹, Dennisse Bonilla¹, Nicole Anderson¹, Joan Wither¹, Patricia Katz⁸ and Zahi Touma⁹, ¹University of Toronto Lupus Clinic, Centre for Prognosis Studies in Rheumatic Diseases, Toronto Western Hospital, University Health Network, Toronto, ON, Canada, ²Department of Psychiatry, University of Toronto, Toronto, ON, Canada, ³Toronto Rehabilitation Institute, University Health Network, Toronto, ON, Canada, ⁴Institute for Work & Health, Toronto, Canada, ⁵University of Toronto, Krembil Neurosciences Centre, Toronto, ON, Canada, ⁶Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada, ⁷Brigham and Women's Hospital | Cumming School of Medicine, University of Calgary, Calgary, AB, Canada, ⁸University of California, San Francisco, Novato, CA, ⁹University of Toronto Lupus Clinic, Centre for Prognosis Studies in Rheumatic Diseases, Toronto Western Hospital, University Health Network; Krembil Research Institute, Toronto, ON, Canada
Background/Purpose: Cognitive impairment (CI) is usually operationalized on the American College of Rheumatology Neuropsychological Battery (ACR-NB) as a z-score of ≤-1.5 on ≥2 domains or…
Abstract Number: 1709 • ACR Convergence 2020
Teaching Clinical Application of Bayesian Reasoning in Rheumatology to Internal Medicine Residents and Medical Students
Joshua Gavin¹, Kristen Fadel¹, Yashswee KC², Evan Dombrosky³, Sandra Johnson⁴, Huzaefah Syed⁵, Beth Rubinstein⁶, Stamatina Danielides⁶ and Abhishek Nandan⁷, ¹Virginia Commonwealth University School of Medicine, Richmond, ²Virginia Commonwealth University School of Medicine, Henrico, VA, ³Virginia Commonwealth University School of Medicine, Glen Allen, VA, ⁴Virginia Commonwealth University Health Systems, Richmond, ⁵VCU Health, Richmond, VA, ⁶Virginia Commonwealth University School of Medicine, Richmond, VA, ⁷VCUHS and VA Medical Center- Richmond, VA, Richmond, VA
Background/Purpose: Evidence-based medicine (EBM) is becoming an increasingly important skill in the clinical application of diagnostic reasoning. Didactic lectures focusing on EBM concepts are a…

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