Background: The classification of antineutrophil cytoplasmic antibody-associated vasculitis (AAV)
and polyarteritis nodosa (PAN) for epidemiology studies is confusing. The existing …

Objective To compare the 1‐year retention rates of anti–tumor necrosis factor α (anti‐TNFα)
medications in patients with rheumatoid arthritis (RA), psoriatic arthritis (PsA), and …

Hutchinson et al concluded that prolonged heavy cigarette smoking, but not smoking itself, is
strongly associated with rheumatoid arthritis (RA), particularly in patients without a positive …

Objective To determine if changes in the incidence, prevalence, and clinical presentation of
Wegener's granulomatosis (WG) have occurred in the stable population of northern Norway …

Objective. To determine survival, organ damage and predictors of these outcomes in a
population‐based, longitudinal cohort study of patients with Wegener's granulomatosis (WG). …

Objective. Rituximab (RTX) is an anti-CD20 antibody used successfully in granulomatosis with
polyangiitis (GPA) for induction and maintenance of remission. Our study aims to evaluate …

Objective To examine the effectiveness and 2-year retention rates of methotrexate (MTX) in
MTX naïve patients with psoriatic arthritis (PsA). Methods Data on 430 patients with PsA …

Objective To examine possible associations between chronic inflammatory arthritides and
pregnancy outcomes with separate analyses of first and subsequent births before and after …

Objective. Rituximab (RTX) is a B cell depleting agent used to induce and maintain
remission in patients with granulomatosis with polyangiitis (GPA). As the development of …

OBJECTIVE: To determine if fatigue in patients with systemic lupus erythematosus (SLE) is
associated with levels of serum cytokines, antiphospholipid antibodies (aPL), or other …