Ankylosing spondylitis epidemiology and demographics

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

In the USA, the prevalence of ankylosing spondylitis is 250 per 100,000. Because it is a chronic condition, the incidence is low.

Epidemiology and Demographics

The gender ratio is 3:1 for men:women. In USA, the prevalence is 250 per 100,000, but as it is a chronic condition the incidence (number of new cases) is fairly low.