Juvenile Arthritis Functional Assessment Report (JAFAR)

The JAFAR is a parent-report instrument developed by Lovell et al. in 1989 to assess functional ability in children and adolescents with juvenile idiopathic arthritis (JIA). Measuring across multiple domains including lower extremity function, upper extremity function, and activities of daily living, the JAFAR quantifies the extent to which arthritis and its treatment affect the child's mobility, self-care, and participation in age-appropriate activities. It remains a standard functional outcome measure in pediatric rheumatology research and clinical practice.