Spondyloarthritis & psoriatic arthritis

Low Socioeconomic Status and Female Sex are Associated With Worse Functional Status in Axial Spondyloarthritis

Arthritis Care Res (Hoboken)Published Cohort study

Authors' conclusion

In this large sample of patients with axSpA, those with lower SES had worse FS and functional decline. Women had worse FS than men, initially and over time.

Study context

Population
Patients with axial spondyloarthritis (axSpA) in the Rheumatology Informatics System for Effectiveness registry2,341 in longitudinal analysis
Participants
5,658 patients
Exposure
Area Deprivation Index quintiles and women vs men
Outcome
Functional status by MDHAQ (cross-sectional, linear trend across ADI quintiles); functional decline (longitudinal)
Methodological detailsregistry-based (RISE), cross-sectional and longitudinal analyses, generalized estimating equation models
  • Registry-based (RISE)
  • Cross-sectional and longitudinal analyses
  • Generalized estimating equation models

Main finding

As reported in the abstract

Predicted mean MDHAQ score by ADI quintile (cross-sectional)

Lowest Area Deprivation Index (ADI) quintile

2.2

mean · 95% CI 1.8–2.7

Highest ADI quintile

1.8

mean · 95% CI 1.4–2.1

Observational data: associations, not effects.

Further findings

OutcomeLowest ADI quintileHighest ADI quintileWomenMenOdds (95% CI)
MDHAQ score by sex (cross-sectional)Mean— not stated in the abstract— not stated in the abstract2.1 (SD 2.2)1.6 (SD 2.0)
Functional decline by SES quintile (longitudinal)14.3% (95% CI 7.6–25.5%)9.6% (95% CI 5.2–17.1%)— not stated in the abstract— not stated in the abstract
Functional decline by sex (longitudinal)Women vs Men · times higher odds1.7 (1.3–2.2)

— not stated in the abstract

Multidimensional Health Assessment Questionnaire (MDHAQ) score by sex (cross-sectional)

Women had lower functional status (FSs) compared to men across quintiles

Functional decline by sex (longitudinal)

No interaction with sex

Original publication

Low Socioeconomic Status and Female Sex are Associated With Worse Functional Status in Axial Spondyloarthritis. Arthritis Care Res (Hoboken). Published 26 October 2024. doi:10.1002/acr.25436

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