Evaluation of Health Disparities in Outcomes of Patients With Juvenile Idiopathic Arthritis

Objective Juvenile idiopathic arthritis (JIA) is complicated by morbidity, with suboptimal rates of prolonged remission, decreased health-related quality of life, and functional limitations. The Pediatric Rheumatology Care and Outcomes Improvement Network (PR-COIN), a North American learning health network, has a centralized registry of patients with JIA to track quality measures. We assessed for health disparities in our collaborative JIA population by evaluating our performance on disease activity outcomes, overall well-being, and pain by race and ethnicity, age, sex, and JIA subtype.

Methods A cross-sectional analysis of patients in the PR-COIN registry was conducted to estimate the association between race and ethnicity groups and outcomes including physician global assessment of disease activity (PGA), patient/parent global assessment of overall well-being (PtGA), active joint count, 10-joint clinical Juvenile Arthritis Disease Activity Score (cJADAS10), arthritis-related pain intensity score, and morning stiffness duration.

Results Data from 9601 patients were analyzed. Current age was positively and significantly associated with higher scores of pain intensity, PGA, PtGA, and cJADAS10. Non-Hispanic Black patients had statistically higher cJADAS10 scores compared to non-Hispanic White patients, in addition to statistically higher pain intensity scores, and PGA and PtGA scores. Female patients had statistically higher scores compared to male patients for all outcome variables assessed.

Conclusion We found disparities in outcomes of patients with JIA related to race and ethnicity, sex, and age. This information is imperative to drive further improvement efforts and understand possible causes of these differences to close disparity gaps and improve outcomes for all patients with JIA.