Acta Reumatológica Portuguesa - Online First: 2021-01-29
Association of body mass index with Juvenile Idiopathic Arthritis disease activity: a Portuguese and Brazilian collaborative analysis
AbstractObjective: To investigate the relationship between body mass index (BMI) and disease activity in patients with Juvenile Idiopathic Arthritis (JIA).
Methods: Patients with JIA, aged ≤18 years, registered at the Rheumatic Diseases Portuguese Register (Reuma.pt) in Portugal and Brazil were included. Age- and sex-specific BMI percentiles were calculated based on WHO growth standard charts and categorized into underweight (P