Abstract Number: 372 • 2014 ACR/ARHP Annual Meeting
Diagnostic Accuracy and Associated Costs of Rheumatoid Factor Testing in Primary Care: A Population-Based Cohort Study in Spain
Background/Purpose: To assess the sensitivity, specificity, and predictive values of rheumatoid factor (RF) as a test for rheumatoid arthritis (RA) in primary care, and to…Abstract Number: 2021 • 2014 ACR/ARHP Annual Meeting
The Association Between Rheumatoid Factor and Cardiovascular Disease in Healthy Adults
Background/Purpose Rheumatoid arthritis (RA) has been shown to be a risk factor for cardiovascular disease (CVD). Both elevated rheumatoid factor (RF) and anti-citrullinated protein antibodies…Abstract Number: 1560 • 2014 ACR/ARHP Annual Meeting
Rheumatoid Factor Status Is a Predictor of Osteoporosis in Patients with Psoriatic Arthritis
Background/Purpose Osteoporosis is an important comorbidity in patients with rheumatic diseases, but risk factors for osteoporosis in Psoriatic Arthritis (PsA) patients have not been explored. …Abstract Number: 1404 • 2014 ACR/ARHP Annual Meeting
Presence and Significance of Anti-CCP Antibody in Patients with Interstitial Lung Disease with and without Clinically Apparent Rheumatoid Arthritis
Background/Purpose: Interstitial lung disease (ILD) can be idiopathic or associated with underlying etiologies including rheumatoid arthritis (RA). The purpose of this study is to determine…Abstract Number: 2394 • 2013 ACR/ARHP Annual Meeting
In Rheumatoid Arthritis, Smoking Is Not Primarily Associated With Anti-Citrullinated Protein Antibodies, But With The Presence Of Multiple Autoantibodies
Background/Purpose: Smoking is associated with the presence of several autoantibodies in various autoimmune diseases. In rheumatoid arthritis (RA), smoking has been described to be specifically…Abstract Number: 2291 • 2013 ACR/ARHP Annual Meeting
Only Rheumatoid Factor-Positive Subset Of Anti-Citrullinated Peptide/Protein Antibody-Negative Rheumatoid Arthritis Seroconverts To Anti-Citrullinated Peptide/Protein Antibody-Positive
Background/Purpose: 216 (17.3%) out of 1,246 RA patients were negative for ACPA. In 149 cases of the ACPA-negative RA whose ACPA were measured more than…Abstract Number: 2298 • 2013 ACR/ARHP Annual Meeting
Upper-Half Serum IgA (20+ TU/ml) and IgM (10+ IU/ml) Levels Significantly Predicted The Long-Term (mean 12 yrs) Onset Of Rheumatoid Arthritis When Combined, But Neither test Individually In Their Respective Full Ranges Of Values
Background/Purpose: Serum rheumatoid factor (RF) is a major predictor of the new onset of rheumatoid arthritis (RA). In very early arthritis patients, higher titers…Abstract Number: 2303 • 2013 ACR/ARHP Annual Meeting
Clinical Characteristics Of Rheumatoid Factor-Positive Or Negative Subsets Of Anti-Citrullinated Peptide/Protein Antibody-Negative Rheumatoid Arthritis
Background/Purpose: Although anti-citrullinated peptide/protein antibody (ACPA) is a specific autoantibody for rheumatoid arthritis (RA), ~20% of RA are ACPA negative. It has been reported that…Abstract Number: 2267 • 2013 ACR/ARHP Annual Meeting
The Diagnostic Accuracy Of Rheumatoid Factor Testing In Primary Care
Background/Purpose: Studies of the diagnostic utility of rheumatoid factor (RF) testing for rheumatoid arthritis (RA) conducted in early arthritis clinics in secondary care have reported…Abstract Number: 1786 • 2013 ACR/ARHP Annual Meeting
91% Of Early RA Patients Are Positive For Serum 14-3-3η Or Its Auto-Antibodies
Background/Purpose: Current serological markers such as RF and ACPA are useful for early diagnosis and perhaps for screening people at risk, but there remains a…Abstract Number: 1395 • 2013 ACR/ARHP Annual Meeting
CXCL13 Is Elevated In Early and In Established Seropositive Rheumatoid Arthritis and Correlates With Rheumatoid Factor Levels
Background/Purpose: CXCL13 is a B cell chemokine whose expression has been reported to be elevated in serum and synovium from patients with rheumatoid arthritis (RA). …Abstract Number: 1320 • 2013 ACR/ARHP Annual Meeting
Categorization Of Rheumatoid Arthritis Subjects By Rheumatoid Factor and Anti-Cyclic Citrullinated Autoantibody Status Identifies Rheumatoid Arthritis Subjects With Different Characteristics
Background/Purpose: Rheumatoid factor (RF) and anti-citrullinated cyclic peptide (CCP) antibodies have been used to diagnose rheumatoid arthritis (RA) patients, although there is substantial heterogeneity among…Abstract Number: 1309 • 2013 ACR/ARHP Annual Meeting
Prognosis Of Seronegative Patients In a Large Prospective Cohort Of Patients With Early Inflammatory Arthritis
Background/Purpose: Rheumatoid Factor (RF) and anti-Cyclic Citrullinated Peptide (anti-CCP) are believed to be associated with more severe clinical outcomes; however, studies in Early Inflammatory Arthritis…Abstract Number: 1158 • 2013 ACR/ARHP Annual Meeting
Decreased NK-Cell Numbers and Upregulation Of Markers Of Systemic Inflammation In Autoantibody –Positive Arthralgia Patients and Early Rheumatoid Arthritis Patients But Not In Autoantibody-Negative Rheumatoid Arthritis Patients
Background/Purpose: Identification of seropositive individuals at risk for arthritis development would open opportunities for early clinical intervention. In a recent study on seropositive arthalgia patients…Abstract Number: 870 • 2013 ACR/ARHP Annual Meeting
How To Predict That Early Arthritis Without Rheumatoid Factor and ACPA Becomes Rheumatoid Arthritis According To ACR/EULAR 2010 After a 3-Years Follow-Up? Results From The Espoir Cohort
Background/Purpose: To describe disease course of patients without rheumatoid factor (RF) and anti-citrullinated protein auto-antibodies (ACPA) in an inception cohort of early arthritis patients. To determine…