Investigation of Inactive Disease States Among Patients With Juvenile Idiopathic Arthritis in the Childhood Arthritis and Rheumatology Research Alliance Registry.

In a multicenter cohort of patients with JIA in North America, a large proportion of patients had inactive disease by single or composite measures after 1 year of observation in the Registry. There was significant overlap between patients who met ACR CID criteria and those who had a cJADAS10 of 1 or less. Additional studies are needed to evaluate the reasons for discordance in inactive disease measures.