Pediatric rheumatology

A decade of progress in juvenile idiopathic arthritis treatments and outcomes in Canada: results from ReACCh-Out and the CAPRI registry

Rheumatology (Oxford)Published Prospective inception cohort study

An erratum to this article was published (Rheumatology (Oxford), 1 Sep 2024 ↗)

Authors' conclusion

Although baseline disease characteristics were comparable in the 2005-2010 and 2017-2021 cohorts, cDMARD and bDMARD use increased with a concurrent increase in minimally active and inactive disease. Improvements in parent and patient-reported outcomes were smaller than improvements in disease activity.

Study context

Population
Patients with juvenile idiopathic arthritis (JIA) in Canada enrolled within three months of diagnosis
Participants
721 vs 1,128
Exposure
2017-2021 inception cohort vs 2005-2010 inception cohort
  • 2017-2021n = 721
  • 2005-2010n = 1,128reference
Outcome
Cumulative incidences of drug starts and outcome attainment
Follow-up
Within 70 weeks of diagnosis
Methodological detailscomparison of two registry cohorts, multicentre registries (ReACCh-Out and CAPRI), Kaplan-Meier survival analysis, multivariable Cox regression
  • Comparison of two registry cohorts
  • Multicentre registries (ReACCh-Out and CAPRI)
  • Kaplan-Meier survival analysis
  • Multivariable Cox regression

Main finding

As reported in the abstract

Started a bDMARD · 70 weeks

Observational data: associations, not effects.

Further findings

Outcome2005-20102017-2021
Started a cDMARD (cumulative incidence) · 70 weeks43% (95% CI 40–47)60% (95% CI 56–64)

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

Original publication

A decade of progress in juvenile idiopathic arthritis treatments and outcomes in Canada: results from ReACCh-Out and the CAPRI registry. Rheumatology (Oxford). Published 18 October 2023. doi:10.1093/rheumatology/kead560

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