Abstract Number: 2489 • ACR Convergence 2025
Unraveling IPAF, VEDOSS and connective tissue diseases classifications through the mixed connective tissue disease spectrum
Background/Purpose: Mixed connective tissue disease (MCTD) is a rare systemic disorder that belongs to connective tissue diseases (CTD). Approximately 25% of MCTD patients will meet…Abstract Number: 0126 • ACR Convergence 2025
Performance of the 2023 and 2006 APS Classification Criteria in Pediatric Patients Diagnosed with APS: A Multisite Cohort Study
Background/Purpose: Antiphospholipid syndrome (APS) is a thrombo-inflammatory disorder that causes significant morbidity and mortality, even in children. The 2023 ACR/EULAR classification criteria, which use weighted…Abstract Number: 2405 • ACR Convergence 2025
Machine Learning in SLE Diagnosis: Performance of the SLE Risk Probability Index Questionnaire in a Multicenter Cohort of Patients with Systemic Lupus Erythematosus
Background/Purpose: The SLE Risk Probability Index (SLERPI), a clinical prediction model for systemic lupus erythematosus (SLE), was developed using machine‑learning variable‑selection techniques (Random Forest, LASSO).…Abstract Number: 0117 • ACR Convergence 2025
Are Thrombotic or Obstetric Events Associated with Additional Clinical Domains in Triple Antiphospholypid Syndrome?
Background/Purpose: It is known that triple positive antiphospholipid syndrome (APS-TP) is related to an increased presence of thrombotic and obstetric manifestations. Triple positivity is referred…Abstract Number: 2404 • ACR Convergence 2025
Clinical features of Elderly-onset Systemic Lupus Erythematosus
Background/Purpose: Systemic lupus erythematosus (SLE) is a multisystemic chronic disease characterized by a wide range of clinical and serological manifestations. It most commonly affects young…Abstract Number: 2156 • ACR Convergence 2025
Bridging the Gap: Juvenile Spondyloarthritis (JSpA) vs. Chronic Non-Bacterial Osteomyelitis (CNO)
Background/Purpose: The relationship between juvenile spondyloarthritis (JSpA) and chronic nonbacterial osteomyelitis (CNO) remains poorly defined. This study aimed to assess the proportion of pediatric patients…Abstract Number: 2136 • ACR Convergence 2025
Confirming The Validity Of The New EULAR/ACR Classification Criteria For Pediatric Chronic Nonbacterial Osteomyelitis
Background/Purpose: Chronic nonbacterial osteomyelitis (CNO) is a noninfectious autoinflammatory bone disease which remains a diagnosis of exclusion, as existing diagnostic criteria are not widely accepted.…Abstract Number: 1672 • ACR Convergence 2025
Classification criteria, disease phenotypes and long-term outcomes of childhood Sjögren’s Disease into adulthood
Background/Purpose: Childhood Sjögren Disease (cSjD) is a rare clinical phenotype lacking research on long-term outcomes and impact on the quality of life of young people…Abstract Number: 1575 • ACR Convergence 2025
Clinical presentation, course, treatment and outcome of juvenile onset versus adult onset mixed connective tissue disease patients: a multicenter retrospective cohort.
Background/Purpose: Mixed connective tissue disease (MCTD) is an entity defined by clinical features of differentiated connective tissue diseases (dCTD), such as systemic lupus erythematosus (SLE),…Abstract Number: 1388 • ACR Convergence 2025
Positive predictive value of various diagnostic codes for the classification of primary Sjӧgren’s syndrome
Background/Purpose: Primary Sjӧgren’s syndrome is a multisystem autoimmune disorder characterized by progressive dysfunction of exocrine glands leading to symptoms of keratoconjunctivitis and xerostomia. There is…Abstract Number: 1136 • ACR Convergence 2025
The Impact of Iron Overload and HFE Genetic Mutations on Joint Disease in Haemochromatosis: Data from the Haemochromatosis Arthropathy Inception Cohorts
Background/Purpose: A EULAR task force developed classification criteria (CC) for Haemochromatosis Arthropathy (HA) using a cohort of people with the C282Y homozygous mutation and arthropathy…Abstract Number: 0607 • ACR Convergence 2025
Age at Diagnosis of SLE has Increased in a United States Longitudinal Cohort
Background/Purpose: The demographics of our lupus cohort have shifted over the decades towards an older population. While much of the shift can be attributed to…Abstract Number: 0854 • ACR Convergence 2025
The Assessments in Spondyloarthritis International Society (ASAS) and Spondyloarthritis Research and Treatment Network (SPARTAN) Revised Classification Criteria for Axial Spondyloarthritis: Development and Validation in the Classification of Axial SpA Inception Cohort Study
Background/Purpose: The 2009 ASAS classification criteria had sensitivity (Sn) of 83% and specificity (Sp) of 84% for a rheumatologist diagnosis of axial spondyloarthritis (axSpA). Given…Abstract Number: 0764 • ACR Convergence 2025
Frequency of large vessel vasculitis in giant cell arteritis with and without adventiitis of temporal artery – Is the presence of temporal arteritis sufficient to diagnose giant cell arteritis?-
Background/Purpose: Takayasu arteritis (TAK) and giant cell arteritis (GCA) belong to the large vessel vasculitis group. Differences between the two diseases have been reported based…Abstract Number: 0390 • ACR Convergence 2025
Radiographic Assessment in Juvenile Spondyloarthritis: Evaluating the axJSpA Criteria Using Radiographs Alone Versus MRI
Background/Purpose: Radiographs are neither sensitive nor reliable for assessing axial disease in juvenile spondyloarthritis (JSpA), though they are still used in some settings due to…
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