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. 2016 Jul;55(7):1225-34.
doi: 10.1093/rheumatology/kew021. Epub 2016 Mar 25.

Trends in paediatric rheumatology referral times and disease activity indices over a ten-year period among children and young people with Juvenile Idiopathic Arthritis: results from the childhood arthritis prospective Study

Flora McErlane  1 , Helen E Foster  2 , Roberto Carrasco  3 , Eileen M Baildam  4 , S E Alice Chieng  5 , Joyce E Davidson  6 , Yiannis Ioannou  7 , Lucy R Wedderburn  8 , Wendy Thomson  9 , Kimme L Hyrich  10
Affiliations

Trends in paediatric rheumatology referral times and disease activity indices over a ten-year period among children and young people with Juvenile Idiopathic Arthritis: results from the childhood arthritis prospective Study

Flora McErlane et al. Rheumatology (Oxford). 2016 Jul.

Abstract

Objectives: The medical management of JIA has advanced significantly over the past 10 years. It is not known whether these changes have impacted on outcomes. The aim of this analysis was to identify and describe trends in referral times, treatment times and 1-year outcomes over a 10-year period among children with JIA enrolled in the Childhood Arthritis Prospective Study.

Methods: The Childhood Arthritis Prospective Study is a prospective inception cohort of children with new-onset inflammatory arthritis. Analysis included all children recruited in 2001-11 with at least 1 year of follow-up, divided into four groups by year of diagnosis. Median referral time, baseline disease pattern (oligoarticular, polyarticular or systemic onset) and time to first definitive treatment were compared between groups. Where possible, clinical juvenile arthritis disease activity score (cJADAS) cut-offs were applied at 1 year.

Results: One thousand and sixty-six children were included in the analysis. The median time from symptom onset and referral to first paediatric rheumatology appointment (22.7-24.7 and 3.4-4.7 weeks, respectively) did not vary significantly (∼20% seen within 10 weeks of onset and ∼50% within 4 weeks of referral). For oligoarticular and polyarticular disease, 33.8-47 and 25.4-34.9%, respectively, achieved inactive disease by 1 year, with ∼30% in high disease activity at 1 year. A positive trend towards earlier definitive treatment reached significance in oligoarticular and polyarticular pattern disease.

Conclusion: Children with new-onset JIA have a persistent delay in access to paediatric rheumatology care, with one-third in high disease activity at 1 year and no significant improvement over the past 10 years. Contributing factors may include service pressures and poor awareness. Further research is necessary to gain a better understanding and improve important clinical outcomes.

Keywords: disease activity; epidemiology; juvenile idiopathic arthritis; outcomes research; treatment.

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Figures

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Fig. 1
Flow chart for subject inclusion O: oligoarticular pattern JIA; P: polyarticular pattern JIA; S: systemic onset JIA.
See this image and copyright information in PMC

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