Abstract Number: 1103 • ACR Convergence 2021
Disease Associations with Very High Serum IgG4 Concentrations: A Retrospective Multi-Center Study
Background/Purpose: Serum IgG4 concentrations are used as part of the evaluation for suspected IgG4-related disease (IgG4-RD), but the specificity of this test, especially at very…Abstract Number: 1113 • ACR Convergence 2021
Validation of the 2019 American College of Rheumatology/European League Against Rheumatism Classification Criteria for IgG4-Related Disease in a Latin American Cohort
Background/Purpose: The 2019 ACR/EULAR classification criteria (2019 AECC) for IgG4-related disease (IgG4-RD) have been validated in cohorts mainly composed of Caucasian and Asian patients. Its…Abstract Number: 0244 • ACR Convergence 2021
Development of Candidate Criteria for Axial Disease in Juvenile Spondyloarthritis: An International Collaboration
Background/Purpose: As part of a larger study developing classification criteria for axial disease in children with spondyloarthritis (SpA), the objective of this project phase was…Abstract Number: 1363 • ACR Convergence 2021
Identification of PsA Phenotypes with Machine Learning Analytics Using Data from a Phase 3 Clinical Trial Program of Guselkumab in a Bio-naïve Population of Patients with PsA
Background/Purpose: Psoriatic arthritis (PsA) is mainly described based on the individual domains or clinical components of the disease.1,2 The aim of this post hoc analysis…Abstract Number: 0250 • ACR Convergence 2021
Is There a Need for a New Classification Criteria in Juvenile Spondyloarthritis?
Background/Purpose: Juvenile SpA (JSpA) involve enthesitis related arthritis (ERA), juvenile psoriatic arthritis and undifferentiated arthritis (UA) according to the ILAR criteria. Two different patterns have…Abstract Number: 1403 • ACR Convergence 2021
Giant Cell Arteritis Subtypes: Data from the ARTESER Registry
Background/Purpose: Giant cell arteritis (GCA) is the most common systemic vasculitis over 50 years of age. Classically, GCA was assimilated with the involvement of the…Abstract Number: 0333 • ACR Convergence 2021
Validation of the 2019 European League Against Rheumatism/American College of Rheumatology (EULAR/ACR) Classification Criteria for Systemic Lupus Erythematosus (SLE) in Hong Kong Chinese
Background/Purpose: To validate the 2019 EULAR/ACR classification criteria for SLE in Hong Kong Chinese patients and compare its performance with the 2012 Systemic Lupus International…Abstract Number: 1733 • ACR Convergence 2021
Classification of Patients with Systemic Lupus Erythematosus Enrolled in 2 Phase 3 Trials by EULAR/ACR 2019 Criteria
Background/Purpose: The TULIP-1 and TULIP-2 trials of anifrolumab, an anti–type I IFN receptor mAb, enrolled autoantibody-positive (ANA, anti-dsDNA, and/or anti-Smith [anti-Sm]) patients, who fulfilled 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…Abstract Number: 1265 • ACR Convergence 2020
2019 Lupus Classification Criteria Score Predicting Cost of Future Hospitalizations
Background/Purpose: The latest 2019 Lupus Classification criteria score (CCS) is based on weighted criteria and has been shown to predict 10-year mortality1. Our previous study…
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