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Primary polycythemia is rare; the overall prevalence of polycythemia vera is 22 cases per 100,000 people.

The annual incidence of polycythemia vera is 2 cases per 100,000 people. The median age is 70 years, with only 0.1% of cases of polycythemia vera observed in individuals younger than 20 years.

Fewer than 50 cases of pediatric polycythemia vera have been reported in the literature.

Polycythemia vera is less likely in blacks than in individuals of European ancestry, with a higher incidence in Ashkenazi Jews.

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12 years ago. Rating: 1
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