Rheumatoid arthritis (RA) is a systemic autoimmune disease that predominantly affects the
joints. The prevalence of RA varies globally, with generally a higher prevalence in …

Introduction Rheumatoid arthritis (RA) is a chronic systemic disease characterized by
articular involvement and extra-articular manifestations. The incidence and prevalence of …

Several incidence and prevalence studies of rheumatoid arthritis (RA) have been reported
during the last decades, suggesting a considerable variation of the disease occurrence …

Rheumatoid arthritis (RA) is the most common chronic inflammatory joint disease. There is
some evidence that it may have been brought from North America to Europe during the 18th …

Epidemiology is the study of the distribution and determinants of disease in human
populations. Over the past decade there has been considerable progress in our …

During the past decades a number of studies have examined the incidence of rheumatoid
arthritis (RA) in different geographical settings and at different times. Some studies from the …

Rheumatic diseases are among the oldest diseases recognized. The classification of
rheumatic diseases is sometimes difficult due to unknown aetiology and heterogeneity in …

Rheumatoid arthritis (RA) is the most common systemic inflammatory rheumatic disease. It is
associated with significant burden at the patient and societal level. Extensive efforts have …

Rheumatoid arthritis (RA) is a common autoimmune systemic inflammatory disease affecting
approximately 1% of the worldwide population. The interaction of genetic and environmental …

OBJECTIVE:: To review epidemiological studies dealing with the temporal and geographic
variability in the occurrence of rheumatoid arthritis (RA) and clinical studies that address the …