In the United States a CDC survey based on data from 2013 to 2015 showed 54.4 million (22.7%) adults had self-reported doctor-diagnosed arthritis, and 23.7 million (43.5% of those with arthritis) had arthritis-attributable activity limitation (AAAL). With an aging population, this number is expected to increase. Adults with co-morbid conditions, such as heart disease, diabetes, and obesity, were seen to have a higher than average prevalence of doctor-diagnosed arthritis (49.3%, 47.1%, and 30.6% respectively).Disability due to musculoskeletal disorders increased by 45% from 1990 to 2010. Of these, osteoarthritis is the fastest increasing major health condition. Among the many reports on the increased prevalence of musculoskeletal conditions, data from Africa are lacking and underestimated. A systematic review assessed the prevalence of arthritis in Africa and included twenty population-based and seven hospital-based studies. The majority of studies, twelve, were from South Africa. Nine studies were well-conducted, eleven studies were of moderate quality, and seven studies were conducted poorly.
Though Landré-Beauvais classification of rheumatoid arthritis as a relative of gout was inaccurate, his dissertation encouraged others to further study the disease. Terminology
The term is derived from arthr- (from Ancient Greek: ἄρθρον, romanized: árthron, lit. joint) and -itis (from -ῖτις, -îtis, lit. pertaining to), the latter suffix having come to be associated with inflammation. The word arthritides is the plural form of arthritis, and denotes the collective group of arthritis-like conditions. See also
Antiarthritics
Arthritis Care (charity in the UK)
Arthritis Foundation (US not-for-profit)
Knee arthritis
Osteoimmunology
Weather pains

References
External links
Arthritis at Curlie
American College of Rheumatology – US professional society of rheumatologists
National Institute of Arthritis and Musculoskeletal and Skin Diseases - US National Institute of Arthritis and Musculoskeletal and Skin Diseases