What is the global incidence of juvenile idiopathic arthritis (JIA)?

Updated: Jul 25, 2019
  • Author: David D Sherry, MD; Chief Editor: Lawrence K Jung, MD  more...
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Answer

Worldwide, JIA appears to occur more frequently in certain populations (eg, indigenous peoples) from such disparate areas as British Columbia and Norway. A study in Sweden found the prevalence of JIA there to be similar to that in Minnesota, approximately 85 cases per 100,000 population, with an incidence of 11 cases per 100,000 population. A study from Germany found a prevalence rate of 20 cases per 100,000 population, with an incidence rate of 3.5 cases per 100,000 population.

Estimates from Norway include a prevalence rate of 148 cases per 100,000 population with an incidence rate of 22 cases per 100,000 population. The incidence of JIA in Japan has been reported to be low.

Disease-associated mortality for JIA is difficult to quantify, but it is estimated to be less than 1% in Europe and less than 0.5% in North America. Most deaths associated with JIA in Europe are related to amyloidosis, and most in the United States are related to infections.


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