Rheumatoid arthritis

Socioeconomic deprivation is associated with reduced response and lower treatment persistence with TNF inhibitors in rheumatoid arthritis

Rheumatology (Oxford)Published Cohort study

Authors' conclusion

Socioeconomic deprivation is associated with reduced response to TNFi.

Study context

Population
Individuals with RA commencing their first TNF inhibitor (TNFi) in the British Society for Rheumatology Biologics Register for RA (BSRBR-RA) and Biologics in RA Genetics and Genomics Study Syndicate (BRAGGSS) cohortsBSRBR-RA
Participants
16,085 individuals
Exposure
20% most deprived and middle 40% vs 40% least deprived
Outcome
DAS28-derived outcomes
Follow-up
6 months (BSRBR-RA) and 3 months (BRAGGSS)
Methodological detailstwo cohorts (BSRBR-RA and BRAGGSS), regression models, Cox models
  • Two cohorts (BSRBR-RA and BRAGGSS)
  • Regression models
  • Cox models

Main finding

As reported in the abstract

6-month DAS28 (BSRBR-RA) · 6 months
Most deprived vs Least deprivedDifference, unit (95% CI)
Unadjusted
0.3(0.22–0.37)
Most deprived vs Least deprivedOdds ratio (95% CI)
Low disease activity; unadjusted
0.76(0.68–0.84)

Observational data: associations, not effects.

Further findings

OutcomeHR (95% CI)
All-cause TNFi discontinuation (BSRBR-RA)Most deprivedvs Least deprivedDriven by ineffectiveness rather than adverse events · Adjusted estimates were generally attenuated1.18 (1.12–1.25)

DAS28 at 3 months (BRAGGSS), most vs least deprived

Results similar to BSRBR-RA for 3-month DAS28
β = 0.23; 95% CI 0.11, 0.36
  • Unadjusted

Low disease activity at 3 months (BRAGGSS), most vs least deprived

Results similar to BSRBR-RA for 3-month low disease activity
OR 0.77; 95% CI 0.63, 0.94
  • Unadjusted

Original publication

Socioeconomic deprivation is associated with reduced response and lower treatment persistence with TNF inhibitors in rheumatoid arthritis. Rheumatology (Oxford). Published 2 June 2023. doi:10.1093/rheumatology/kead261

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

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