According to the International League of Associations for Rheumatology classification, Juvenile Idiopathic Arthritis (JIA) comprises a heterogeneous group of arthritis of unknown cause and with onset before 16 years of age, characterized by joint inflammation lasting for 6 or more weeks. Few studies exist regarding the care experience of children affected by this rheumatic condition. On the other hand, methotrexate and biologics constitute the primary treatment for children with JIA. As with adults undergoing the same treatment, adherence is critical. Difficulties for children to take the drugs have been reported. Notwithstanding, if adherence promotion in pediatric chronic conditions has been the subject of recommendations with regard to care management, the investigators lack information to understand the grounds for adherence specifically in JIA. In order to understand and decipher the parent-child adherence mechanisms and practices, the RUMAJI study will be conducted. Indeed, improving the relational approach between children and their caregivers as well as unrestricted drug adherence involves researching and understanding how appropriation of the disease and treatment could be achieved.

Inclusion criteria:

• all JIA forms
• all treatment type (NSAIDs, MTX, bDMARDs)

Exclusion criteria:

- none

Children with JIA and their parents

NC