Comparison of clinical characteristics between adult-onset and juvenile-onset non-radiographic axial spondyloarthritis in Chinese patients: results from the COCAS cohort

Background Axial spondyloarthritis (axSpA) is a chronic inflammatory rheumatic disease predominantly affecting the axial skeleton. We aimed to describe the clinical characteristics of patients with non-radiographic axSpA (nr-axSpA) in China and compare the differences between adult- and juvenile-onset cases. Methods A cross-sectional study was conducted using data from 776 patients with nr-axSpA in the Clinical Characteristic and Outcome in Chinese Axial Spondyloarthritis (COCAS) study cohort. Patients were divided into two groups including the adult-onset group (n = 662) and the juvenile-onset group (n = 114) according to age at disease onset. Baseline demographics and clinical characteristics were compared between patients with adult-onset and juvenile-onset nr-axSpA. Results Overall, the male-to-female ratio was 1.26:1, the prevalence of HLA-B27 positivity was 72.2%, and the median age at disease onset of nr-axSpA was 22 years. Nearly 75% of nr-axSpA patients had peripheral arthritis in the disease course, and the prevalence of extra-articular manifestations was 10.4%. The juvenile-onset group contained a higher proportion of men (66.7% vs. 53.9%, P = 0.011) and a longer baseline disease duration (4.0 [4.0] vs. 1.6 [3.5], P < 0.001) than the adult-onset group. A family history of spondyloarthritis was more frequent in the juvenile-onset group than in the adult-onset group (23.7% vs. 15.4%, P = 0.028), but no significant difference in the prevalence of HLA-B27 positivity was observed between the two groups (P = 0.537). Regarding initial symptoms, peripheral arthritis occurred more often in patients with juvenile-onset nr-axSpA, whereas patients with adult-onset nr-axSpA presented more frequently with axial involvement. The prevalence of inflammatory back pain (IBP) was higher in the adult-onset group than in the juvenile-onset group (85.0% vs. 75.4%, P = 0.010), whereas the juvenile-onset group showed a higher prevalence of peripheral arthritis and enthesitis than the adult-onset group (67.5% vs. 48.5%, P < 0.001; 35.1% vs. 23.3%, P = 0.007, respectively). Conclusions Compared with adult-onset nr-axSpA, juvenile-onset nr-axSpA was more common in men and those with a family history of spondyloarthritis. Juvenile-onset nr-axSpA presents with a “peripheral predominant” mode at disease onset and a higher frequency of peripheral arthritis and enthesitis during the disease course..

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:28

Enthalten in:

European journal of medical research - 28(2023), 1 vom: 28. Sept.

Sprache:

Englisch

Beteiligte Personen:

Huang, Shu-Xin [VerfasserIn]
Li, Hao-Guang [VerfasserIn]
Liang, Hong-Jin [VerfasserIn]
Wang, Dan-Min [VerfasserIn]
Peng, Jian-Hua [VerfasserIn]
Shen, Feng-Cai [VerfasserIn]
Li, Wei-Ping [VerfasserIn]
Lin, Ling [VerfasserIn]
Xiao, Zheng-Yu [VerfasserIn]
Hou, Zhi-Duo [VerfasserIn]

Links:

Volltext [kostenfrei]

Themen:

Enthesitis
HLA-B27
Juvenile-onset
Non-radiographic axial spondyloarthritis
Peripheral arthritis

Anmerkungen:

© The Author(s) 2023

doi:

10.1186/s40001-023-01387-x

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

SPR053240626