title: Validation of the Brazilian version of the Pediatric Outcomes Data Collection Instrument: a cross-sectional evaluation in children and adolescents with juvenile idiopathic arthritis.
abstract: BACKGROUND
  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 PODCI in the Brazilian Portuguese language is important to improve the assessment of pediatric patients with musculoskeletal diseases and to compare Brazilian study results with results from the international literature. This study aimed to analyze the test-re-test reliability and the convergent validity indicators for the quality of life scores obtained by application of the PODCI to children and adolescents with juvenile idiopathic arthritis (JIA).
  
  
  METHODS
  The PODCI underwent translation, transcultural adaptation, and field testing. Fifty-seven children and adolescents with JIA were administered the PODCI questionnaire. The Child Health Questionnaire - Parent Form 28 (CHQ PF-28) was used as the gold standard. Pain scales were employed, clinical examinations were performed, and laboratory inflammatory activity tests were conducted.
  
  
  RESULTS
  The three versions of the PODCI exhibited good internal consistency (Cronbach's alpha coefficient > 0.70), good reproducibility (p < 0.05), and good correlation compared with the gold standard (CHQ), as shown by a Spearman coefficient (Rho) > 0.40 (p < 0.05).
  
  
  CONCLUSIONS
  The PODCI was validated in patients with JIA in Brazil. This questionnaire was found to be valid, precise, and reliable. It can be successfully applied in research conducted by healthcare professionals who work with children and adolescents with musculoskeletal system disorders.
authors.affiliation: Clinical Research Unit of Oswaldo Cruz University Hospital and Pernambuco, Cardiologic Emergency at Pernambuco University, Rua Arnóbio Marques, 310, Santo Amaro, Recife, PE 52011-240, Brazil. falvesmonte@gmail.com.
authors.forename: Felipe Alves
authors.initials: FA
authors.lastname: do Monte
authors.forename: Moacir Novaes Lima
authors.initials: MN
authors.lastname: Ferreira
authors.forename: Kátia Cristina Lima
authors.initials: KC
authors.lastname: Petribu
authors.forename: Nair Cristina
authors.initials: NC
authors.lastname: Almeida
authors.forename: José Benjamim
authors.initials: JB
authors.lastname: Gomes
authors.forename: Maria Helena
authors.initials: MH
authors.lastname: Mariano
authors.forename: Zelina Barbosa
authors.initials: ZB
authors.lastname: Mesquita
authors.forename: Diego Montarroyos
authors.initials: DM
authors.lastname: Simões
authors.forename: André Furtado de Ayalla
authors.initials: AF
authors.lastname: Rodrigues
authors.forename: Mariana Alves Nogueira
authors.initials: MA
authors.lastname: Souza
mesh_terms: D000203:Activities of Daily Living; D000293:Adolescent; D001132:Arm / Q000503:physiopathology; D001171:Arthritis, Juvenile / Q000523:psychology / Q000534:rehabilitation*; D001938:Brazil; D017028:Caregivers; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D005260:Female; D006304:Health Status; D006801:Humans; D007802:Language; D008297:Male; D051346:Mobility Limitation; D009140:Musculoskeletal Diseases / Q000523:psychology / Q000534:rehabilitation; D010147:Pain Measurement; D011788:Quality of Life; D015203:Reproducibility of Results; D013177:Sports; D011795:Surveys and Questionnaires; D014175:Translating; D016896:Treatment Outcome