Screening for comorbid autoimmune disease should be considered in children with ANA positive juvenile idiopathic arthritis – results from the south-Swedish juvenile idiopathic arthritis cohort

Individuals with JIA have a significantly increased risk of being diagnosed with an autoimmune condition after receiving their JIA diagnosis compared to matched references. ANA positivity is associated with a further increased risk. Our results emphasize awareness in physicians of additional autoimmune disorders in individuals with JIA and advocate serological screening of autoimmune conditions during follow-up.