There is a lack of health-related quality of life (HRQOL) questionnaires to evaluate pediatric musculoskeletal diseases in Brazil. The Pediatric Outcome Data Collection Instrument (PODCI) is widely used elsewhere for pediatric patients with musculoskeletal disorders, but it has not been fully validated in Brazil. | Validation of the Brazilian version of the pediatric outcomes data collection instrument: A cross-sectional evaluation in children and adolescents with juvenile idiopathic arthritis