The Contribution of Four Immunogenetic Markers for Predicting Persistent Activity in Patients with Recent-Onset Rheumatoid Arthritis or Undifferentiated Arthritis

Autor: Alicia García, Luis Pestana, María Francisca González-Escribano, Sonsoles Reneses, Antonio Fernández-Suárez
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: ISRN Rheumatology
ISSN: 2090-5467
DOI: 10.5402/2011/780356
Popis: We assessed the contribution of four baseline markers—HLA-DRB1 shared epitope (SE), −308 tumor necrosis factor α gene promoter polymorphism, rheumatoid factor, and anticitrullinated peptide antibodies—for predicting persistent activity (DAS28 score ≥2.6) after one year of followup in a cohort of 201 patients with recent-onset rheumatoid arthritis (RA) or undifferentiated arthritis (UA) aged 16 years or older who had a 4-week to 12-month history of swelling of at least two joints. Patients had not been previously treated with corticosteroids or disease-modifying antirheumatic drugs (DMARD). In the best logistic regression model, only two variables were retained: SE positivity and number of DMARD administered (area under the curve = 76.4%; 95% CI: 69.2%, 84.4%; ). The best linear regression model also included these two variables, explaining only 22.5% of the variability of DAS28 score. In this study, given an equal number of DMARD administered, the probability of persistent activity in patients with recent-onset RA or UA was significantly influenced by SE presence.
Databáze: OpenAIRE