Kim T-J et al. - Juvenile onset spondyloarthropathy (JSpA) is a term that refers to a group of HLA-B27-associated inflammatory disorders affecting children under the age of 16 years. Unlike adult SpA, there is higher prevalence of peripheral arthritis/enthesitis and lower axial symptoms. Although USpA is common, and juvenile ankylosing spondylitis (JAS) has different clinical features and a different prognosis from adult ankylosing spondylitis (AAS), few studies in Asia on these entities have been published. This paper reviews the literature on USpA and JSpA (particularly JAS) among Asian populations, and compares it to Western population studies.
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