Objective To investigate baseline use of biologic or targeted synthetic (b/ts) disease-modifying
antirheumatic drugs (DMARDs) and COVID-19 outcomes in rheumatoid arthritis (RA). …

Importance Although tumor necrosis factor (TNF) inhibitors are widely prescribed globally
because of their ability to ameliorate shared immune pathways across immune-mediated …

Rheumatoid arthritis (RA) is a highly heritable complex disease with unknown etiology. Multi-ancestry
genetic research of RA promises to improve power to detect genetic signals, fine-…

Aim To determine characteristics associated with more severe outcomes in a global registry
of people with systemic lupus erythematosus (SLE) and COVID-19. Methods People with …

Early diagnosis and early initiation of disease‐modifying antirheumatic drug ( DMARD )
therapy slow the progression of joint damage and decrease the morbidity and mortality …

Background Patients with primary systemic vasculitis or polymyalgia rheumatica might be at
a high risk for poor COVID-19 outcomes due to the treatments used, the potential organ …

Objective While COVID-19 vaccination prevents severe infections, poor immunogenicity in
immunocompromised people threatens vaccine effectiveness. We analysed the clinical …

The diversity in our genome is crucial to understanding the demographic history of worldwide
populations. However, we have yet to know whether subtle genetic differences within a …

Objectives: To investigate the prevalence of vitamin D deficiency among health care
professionals working at Hamad Medical Corporation in Doha, Qatar. Methods: Between 15th …

Background Differences in the distribution of individual-level clinical risk factors across regions
do not fully explain the observed global disparities in COVID-19 outcomes. We aimed to …