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Clinical characteristics, comorbidities, and disease activity outcomes in a Saudi Arabian axial spondyloarthritis cohort

delete2026-08-01
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PRE
AI
M
Mohamed Bedaiwi *
A
Aos Aboabat
I
Ibrahim Almaghlouth
N
Norah Alshafi
T
Tharaa S. Alhowaish
M
Mohammed A. Omair
E
Eman Alqurtas
F
Fehaid Alanazi
DOI:10.1007/s10067-026-08337-ydelete
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Abstract

Abstract

En 中文
Real-world data on axial spondyloarthritis from Saudi Arabia remain limited. We described the demographic and clinical characteristics, comorbidity burden, cumulative advanced-therapy exposure, and 12-month disease activity outcomes of a Saudi tertiary-care axial spondyloarthritis cohort. We conducted a retrospective single-center cohort study including 148 patients who fulfilled international classification criteria for axial spondyloarthritis and had sufficient clinical data for analysis, including paired baseline and 12-month (mean 12.2 ± 1.1 months) ankylosing spondylitis disease activity score based on C-reactive protein (ASDAS-CRP) values. Baseline was defined as the index treatment episode anchoring the paired baseline-to-12-month ASDAS-CRP assessment. Outcomes were summarized descriptively; clinically important and major improvement was defined as decreases in ASDAS-CRP of at least 1.1 and 2.0 units, respectively. Mean age was 41.0 ± 12.8 years, 64.9% were male, and mean diagnostic delay was 4.3 ± 3.3 years. HLA-B27 was positive in 62.8%, numerically more often in ankylosing spondylitis than in nonradiographic disease (73.8% vs 48.4%) and in men than in women (68.8% vs 51.9%). Peripheral arthritis, enthesitis, uveitis, psoriasis, and inflammatory bowel disease occurred in 39.9%, 41.2%, 17.6%, 14.9%, and 9.5%, respectively. Mean ASDAS-CRP improved from 3.30 ± 0.64 to 2.06 ± 0.66; 50.7% achieved clinically important improvement, 17.6% major improvement, and 67.6% a score below 2.1. This study provides important real-world data from a large Saudi tertiary-care cohort on axial spondyloarthritis phenotype, comorbidity burden, cumulative advanced-therapy exposure, and 12-month outcomes. 67.6% of patients reached a practical disease activity target (ASDAS-CRP < 2.1), although inactive disease was achieved by a smaller subgroup (14.2%).
Keywords:
Ankylosing spondylitis
Axial spondyloarthritis
Comorbidity
Disease activity
HLA-B27
Saudi Arabia

Journal

Clinical Rheumatology cover
Clinical Rheumatology
IF:
2.8
Papers:
1.1K
Citations:
1.3W

Organization

C
College of Medicine
Scholars:
3.7K
Papers: 1.6K
Citations: 3