Abstract Number: 1609 • ACR Convergence 2020
The Accuracy of Administrative Health Data for Identifying Patients with Rheumatoid Arthritis: A Validation Study Using Medical Records in Western Australia
Background/Purpose: The use of large administrative health datasets is increasingly important in Rheumatology for disease trends and outcome research. We established the West Australian Rheumatic…Abstract Number: 1863 • ACR Convergence 2020
Clinical History as Tool for Diagnosis and Classification of Patients with Ankylosing Spondylitis (Axial Spondyloarthritis): Evidence from a 35-Year Follow-up Family Study of a Swiss Cohort
Background/Purpose: Lack of sensitivity or specificity of symptoms may induce uncertainty in diagnosis and classification of AS/axSpA. We investigated if balanced sensitivity and specificity of…Abstract Number: 0092 • ACR Convergence 2020
Diagnosis of Behçet’s Disease: Comparison of Two Sets of Classification Criteria. Application in 111 Patients of a Well-defined Population
Background/Purpose: Behçet’s disease (BD) is a systemic, chronic, relapsing vasculitis with no pathognomonic diagnostic test. The most widely used classification criteria are those of the…Abstract Number: 1870 • ACR Convergence 2020
Development of Candidate Criteria for Axial Disease in Juvenile Spondyloarthritis: An International Collaboration
Background/Purpose: The lack of pediatric classification criteria for axial disease is a major impediment to the conduct of clinical trials for juvenile spondyloarthritis (SpA). Classification…Abstract Number: 0270 • ACR Convergence 2020
The New EULAR/ ACR 2019 SLE Classification Criteria: Defining Ominosity in SLE
Background/Purpose: SLE is characterized by different patterns of disease activity throughout its course. Overall, a higher disease activity is an important predictor of mortality and…Abstract Number: 2038 • ACR Convergence 2020
Characterizing Morphea Subsets Using a Multi-center, Prospective, Cross-sectional Analysis
Background/Purpose: Morphea, or localized scleroderma, is an inflammatory condition of the skin and soft tissue that results in excessive collagen deposition, often producing permanent functional…Abstract Number: 0277 • ACR Convergence 2020
Incidence and Time to Classification of Systemic Lupus Erythematosus by Three Different Classification Criteria
Background/Purpose: Classification criteria are standardized definitions required to identify well defined cohorts of patients for research. In practice they are also used as a framework…Abstract Number: 0301 • ACR Convergence 2020
Genetic Associations and Polygenic Risk Assessment in Incomplete Lupus Erythematosus
Background/Purpose: Patients with incomplete lupus erythematosus (ILE) have features of lupus, but have insufficient criteria for SLE classification. Some ILE patients transition to classified SLE,…Abstract Number: 0303 • ACR Convergence 2020
SLE Patients Stratify into Distinct Clusters Based on Their Peripheral Blood Immunologic Phenotype During Acute Flare
Background/Purpose: SLE is a chronic autoimmune disease in which periods of quiescence are interspersed with acute flares of disease activity that produce much of the…Abstract Number: 0401 • ACR Convergence 2020
Prevalence and Characteristics of Systemic Sclerosis Patients Fulfilling the 2019 EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
Background/Purpose: Literature describing the overlap syndrome of SSc and SLE is limited and has employed a range of case definitions. Our study sought to use…Abstract Number: 0521 • ACR Convergence 2020
Avoiding Misclassification of Primary Antiphospholipid Syndrome as Systemic Lupus Erythematosus: What Are the Best-performing SLE Classification Criteria?
Background/Purpose: Primary Antiphospholipid Syndrome (PAPS) patients, when submitted to Systemic Lupus Erythematosus (SLE) classification criteria, can be misclassified. The new 2019 ACR/EULAR classification criteria have…Abstract Number: 0522 • ACR Convergence 2020
Development of New International Classification Criteria for Antiphospholipid Syndrome: Phase III Case Collection Results
Background/Purpose: An international multi-disciplinary effort is underway to develop rigorous, new, consensus- and evidence-based classification criteria for Antiphospholipid Syndrome (APS). The methodological approach includes four…Abstract Number: 0524 • ACR Convergence 2020
Determination of Homogenous Subgroups of Antiphospholipid Syndrome: A Cluster Analysis Based on 509 Cases
Background/Purpose: Antiphospholipid syndrome (APS) is a heterogeneous disease, with different phenotypes which may widely vary from classical thrombotic or obstetrical manifestations to catastrophic antiphospholipid syndrome…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
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: 1162 • ACR Convergence 2020
Comparison of Clinicopathologic and Imaging Features Between Chronic Nonbacterial Osteomyelitis and Its Mimickers: A Multi-national 450 Case-Control Study
Background/Purpose: Chronic nonbacterial osteomyelitis (CNO)/chronic recurrent multifocal osteomyelitis (CRMO) predominantly affects children and young adults. Classification criteria are not available and diagnostic criteria that have…
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