Abstract Number: 1812 • ACR Convergence 2022
Impact of Misclassification on the US Prevalence of Gout: Bayesian Sensitivity Analysis of the National Health & Nutrition Examination Survey (NHANES)
Background/Purpose: Gout is considered the most common inflammatory arthritis in the US with an estimated prevalence of 3.9% based on the National Health and Nutrition…Abstract Number: 2100 • ACR Convergence 2022
Employment Trajectory of Canadian Young Adults with Systemic Lupus Erythematosus
Background/Purpose: Young adulthood (18-30 years) is a time of many changes. Young adults finish school, enter the labour force, and maybe start their own families.…Abstract Number: 2224 • ACR Convergence 2022
Genes Causative of Primary Immunodeficiency Are Risk Factors for and Over-expressed in Systemic Lupus Erythematosus
Background/Purpose: Systemic lupus erythematosus (SLE) is a polygenic autoimmune disease whose specific causes are incompletely understood and for which there exists no single comprehensive diagnostic…Abstract Number: 0543 • ACR Convergence 2021
Novel Insights into Systemic Sclerosis Using a Sensitive Computational Method to Analyze Whole-genome Bisulfite Sequencing Data
Background/Purpose: While the etiology of systemic sclerosis (SSc) remains largely unknown, epigenetic dysregulation including abnormal DNA methylation is thought to contribute to its onset and…Abstract Number: 0759 • ACR Convergence 2021
The Patient as Assessor of Disease Status: A Graphical Evaluation of Relations Between Patient-Reported Outcomes in Early Rheumatoid Arthritis
Background/Purpose: Current EULAR-guidelines recommend treating Rheumatoid Arthritis (RA) early, intensively and to-target. Patient-Reported Outcomes (PROs) can be important contributors for remote monitoring of disease status…Abstract Number: 0850 • ACR Convergence 2021
Regression Methods for Modeling Western Ontario and McMaster Universities Arthritis Index (WOMAC) Pain Scores for Early Stage Knee Osteoarthritis
Background/Purpose: The Western Ontario and McMaster Universities Arthritis Index (WOMAC) pain score [range 0-20] is a common outcome measure for clinical trials and observational studies…Abstract Number: 0851 • ACR Convergence 2021
Application of a Modified Recursive Feature Elimination Machine Learning Algorithm to Select Predictors of Mortality in Those with and Without Osteoarthritis
Background/Purpose: Radiographic osteoarthritis (rOA) and joint symptoms at the knee and hip are predictors of mortality. However, questions remain about the nature of the relationship…Abstract Number: 1218 • ACR Convergence 2021
Unsupervised Clustering Identifies Unique Subsets of Patients in a Racially and Ethnically Diverse Rheumatoid Arthritis Cohort
Background/Purpose: Single biomarkers have limited utility to date in guiding clinical care in RA. There is growing interest in applying machine learning algorithms to combine…Abstract Number: 1290 • ACR Convergence 2021
Validation of a Novel Lupus Multivariable Outcome Score as an Outcome Measure for Systemtic Lupus Erythematosus Trials
Background/Purpose: Development of effective new Systemic Lupus Erythematosus (SLE) treatments requires a validated responder index responsive to clinically meaningful change and relevant to clinical practice.…Abstract Number: 0259 • ACR Convergence 2021
JIA Diagnoses and Trends from 2006-2019: Has the U.S. ICD-9-to-ICD-10 Transition Created Coding Artifacts?
Background/Purpose: JIA is the most common rheumatic disease of childhood, but recent data on diagnostic trends in the US are lacking. Furthermore, the impact of…Abstract Number: 0106 • ACR Convergence 2020
A Machine Learning-derived Radiomics Nomogram for Diagnosis of Osteoporosis and Osteopenia
Background/Purpose: To discriminate osteoporosis and osteopenia using a quantitative computed tomography (QCT) radiomics signatures and clinical variables.Methods: This retrospective study enrolled 635 patients with QCT images and clinical characteristics from November…Abstract Number: 0487 • ACR Convergence 2020
Association Between an Extended Lifestyle Score and Adverse Health-related Outcomes in People with Rheumatoid Arthritis: A Study of 5295 UK Biobank Participants
Background/Purpose: Rheumatoid arthritis (RA) is a chronic autoimmune disorder characterised by inflammation of the synovial joints. Traditional lifestyle factors, such as smoking and poor diet,…Abstract Number: 0613 • ACR Convergence 2020
Modeling the Effects of Covid-19 Protective Behaviors and Healthcare Delivery on the Health of Patients with Rheumatic Disease
Background/Purpose: COVID-19 has caused global disruptions in the management of chronic illnesses. The extent to which patients with rheumatic disease have been affected by COVID-19…Abstract Number: 1009 • ACR Convergence 2020
Missing Data and Multiple Imputation in Rheumatoid Arthritis Registries Using Sequential Random Forest Method
Background/Purpose: Missing data in clinical epidemiological researches violate the intention to treat principle, reduce statistical power and can induce bias if they are related to…Abstract Number: 1419 • ACR Convergence 2020
Clinical Disease Might Be Divided into Two Phenotypes in ANCA Associated Vasculitis; Results of a Cluster Analysis
Background/Purpose: One of the controversial matters in ANCA associated vasculitis is the definition of disease based on clinical characteristics since there is a remarkable overlap…
ACR Meeting Abstracts