Spondyloarthritis & psoriatic arthritis

Achieving inactive disease state in men and women with axial spondyloarthritis: results from a multi-country prospective observational study

Rheumatology (Oxford)Published Post-hoc analysis of the PROOF prospective observational study

Primary result · ASDAS LDA in nr-axSpAResult — go to the resultOdds ratio 2.23 95% CI 1.45–3.42

Authors' conclusion

Women with nr-axSpA, but not r-axSpA, were less likely to achieve LDA and ID after 1 year than men.

Study context

Population
Patients with recently diagnosed (≤12 months) axial spondyloarthritis (axSpA), classified as r-axSpA or nr-axSpA by central radiograph readingsnr-axSpA 477
Participants
1,385 patients
Comparison
Men vs women with recently diagnosed axSpA
Primary endpoint
ASDAS LDA and ID
Follow-up
1 year
Methodological detailsmulti-country, 1-year
  • Multi-country
  • 1-year

Primary result

ASDAS LDA in nr-axSpA

Odds ratio

2.23

95% CI 1.45–3.42

P = 0.0002

By group

Menvs Women
OR 2.23 (95% CI 1.45–3.42); P = 0.0002

As reported in the abstract

Further findings

OutcomeMenWomenOR (95% CI)P value
ASDAS ID in nr-axSpA · 1 year21.7%9.6%2.40 (1.39–4.12)P = 0.0013

Baseline TNFi use in nr-axSpA

P = 0.0238

Baseline TNFi use in r-axSpA

P = 0.0118

TNFi use in r-axSpA · 1 year · not significantly higher for men in nr-axSpA

P = 0.0497

Axial Spondyloarthritis Disease Activity Score (ASDAS) low disease activity (LDA) and inactive disease (ID) in r-axSpA · 1 year

No significant difference between men and women

Original publication

Achieving inactive disease state in men and women with axial spondyloarthritis: results from a multi-country prospective observational study. Rheumatology (Oxford). Published 20 August 2025. doi:10.1093/rheumatology/keaf447

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