Spondyloarthritis & psoriatic arthritis

Gut inflammation is associated with structural spinal damage in axial spondyloarthritis – results from the observational SPARTAKUS cohort

Arthritis Res TherPublished Cross-sectional analysis of a population-based cohort study

Main finding · mSASSS above the median, all axSpAResult — go to the resultAdjusted odds ratio 2.2 95% CI 1.1–4.2

Authors' conclusion

In the current study, the presence of gut inflammation, assessed by F-calprotectin, was cross-sectionally associated with more structural damage in the spine in patients with axSpA, even after adjustments for known risk factors for spinal damage.

Study context

Population
Patients with nr-axSpA or r-axSpA (ASAS or modified New York criteria) in a population-based cohort, southern Swedennr-axSpA/r-axSpA n = 76/152
Exposure
Elevated (≥ 50 mg/kg) vs normal F-calprotectin; normal/moderately/distinctly elevated F-calprotectin categories
Outcome
Structural spinal damage (mSASSS); mSASSS above the median
Methodological detailsobservational, one-way ANOVA, logistic regression adjusted for sex, symptom duration, HLA-B27 status, smoking, CRP, NSAID and anti-TNF therapy
  • Observational
  • One-way ANOVA
  • Logistic regression adjusted for sex, symptom duration, HLA-B27 status, smoking, CRP, NSAID and anti-TNF therapy

Main finding

mSASSS above the median, all axial spondyloarthritis (axSpA)

Adjusted odds ratio

2.2

95% CI 1.1–4.2

Elevated F-calprotectin (≥ 50 mg/kg)vs Normal F-calprotectin
aOR 2.2 (95% CI 1.1–4.2)

As reported in the abstract

Observational data: associations, not effects.

Further findings

OutcomeaOR (CI)
mSASSS above the median, r-axSpA aloneElevated F-calprotectin (≥ 50 mg/kg)vs Normal F-calprotectin2.9 (1.2–7.1)

mSASSS above the median, r-axSpA alone

In r-axSpA, mSASSS distributions also differed significantly across F-calprotectin categories

Original publication

Gut inflammation is associated with structural spinal damage in axial spondyloarthritis – results from the observational SPARTAKUS cohort. Arthritis Res Ther. Published 21 October 2025. doi:10.1186/s13075-025-03663-z

Composed by AI from the published abstract and checked against it. How Briefs are made →

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