How does the prevalence of juvenile idiopathic arthritis (JIA) vary by sex?

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

Girls with an oligoarticular onset outnumber boys by a ratio of 3:1. In children with uveitis, the ratio of girls to boys is 5-6.6:1, and in children with polyarticular onset, girls outnumber boys by 2.8:1. In striking contrast, systemic-onset occurs with equal frequency in boys and girls. Boys outnumber girls with enthesitis-related arthritis. [15]


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