Age- and sex-adjusted incidence of ankylosing spondylitis in adults, Olmsted County, Minnesota, 1980 to 2009

3.1 per 100,000

new cases per 10,000 person-years, US (Olmsted County, Minnesota)

“Eighty-six patients were diagnosed with AS over the study period with an age- and sex-adjusted incidence of 3.1 per 100,000 (95% confidence interval [95% CI] 2.5-3.8).”

Wright et al., Time trends in incidence, clinical features, and cardiovascular disease in ankylosing spondylitis over three decades: a population-based study, Arthritis Care Res 2015, 2015-05

Kind of source

Peer-reviewed study

Read on

2026-11-06

Daily check

Quote found at the source on 2026-11-06

What to know

One US county, modified New York criteria, adults 18 and over. No worldwide pooled incidence was found.

Arithmetic

3.1 per 100,000 per year / 10 = 0.31 per 10,000 per year

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Ankylosing spondylitis