Abstract
Patients experiencing ankylosing spondylitis (AS) symptoms ≤16 years-of-age are classified as juvenile-onset AS (JoAS), whilst those ≥17 years-of-age adult-onset AS (AoAS). Studies from North America, China and Turkey suggest that JoAS and AoAS patients have differing clinical characteristics and functional outcomes; although results have been inconsistent.
Highlights
Patients experiencing ankylosing spondylitis (AS) symptoms ≤16 years-of-age are classified as juvenile-onset AS (JoAS), whilst those ≥17 years-of-age adult-onset AS (AoAS)
At assessment, JoAS cases were slightly younger than AoAS cases
No statistically significant difference was found between the two groups in terms of BASFI, ten BASFI domains, BASDAI, BASMI, sex distribution, HLA-B27 positivity, psoriasis, enthesitis, or uveitis
Summary
Patients experiencing ankylosing spondylitis (AS) symptoms ≤16 years-of-age are classified as juvenile-onset AS (JoAS), whilst those ≥17 years-of-age adult-onset AS (AoAS). Studies from North America, China and Turkey suggest that JoAS and AoAS patients have differing clinical characteristics and functional outcomes; results have been inconsistent
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