Spondyloarthritis & psoriatic arthritis

Influence of sacroiliac joint variation on clinical features of axial spondyloarthritis: a comparative analysis

RMD OpenPublished Post hoc analysis of four prospective clinical cohorts

Authors' conclusion

Our analysis suggests that clinical phenotypes do not significantly differ between patients with axSpA with and without atypical joints.

Study context

Population
Patients with axial spondyloarthritis (axSpA) from four prospective clinical cohorts86 women
Participants
165 patients
Comparison
axSpA with atypical sacroiliac (SI) joints vs without atypical SI joints
  • Atypical SI jointsn = 61
Methodological detailspropensity score matched, Bonferroni correction for multiple testing
  • Propensity score matched
  • Bonferroni correction for multiple testing

Primary result

As reported in the abstract

Clinical phenotype of axSpA
  • Clinical phenotypes do not significantly differ between patients with and without atypical joints

Further findings

Symptom duration

P = 0.838

  • Symptom duration: group order of the two values as printed; the abstract does not name which group each value belongs to

Symptom duration

Symptom duration similar in both groups

Inflammatory back pain (IBP)

No significant difference in IBP between the groups

Sex-stratified analysis

No statistically significant results

Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.

Original publication

Influence of sacroiliac joint variation on clinical features of axial spondyloarthritis: a comparative analysis. RMD Open. Published 8 February 2025. doi:10.1136/rmdopen-2024-004923

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