The prevalence of Behçet disease is approximately 0.12 to 7.5 per 100,000 individuals in the United States. Behçet disease commonly affects young adults 20 to 40 years of age. Males are more commonly affected by Behçet disease than females. Behçet disease usually affects individuals of the Turkish, Asian, and Middle Eastern populations. Middle Eastern and Asian individuals are more likely to develop Behçet disease due to the increased incidence of skin pathergy and HLA-B51 antigen. The male to female ratio ranges from approximately 11 to 1 to 2 to 1. The majority of Behçet disease cases are reported along the ancient silk road (from eastern Asia to the Mediterranean).
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Behçet's disease classification
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