title: The Brazilian version of the SRS-22r questionnaire for idiopathic scoliosis.
abstract: BACKGROUND
  The SRS-22r questionnaire is a well-accepted instrument used to measure health-related quality of life in patients with idiopathic scoliosis. No validated tool exists in Brazil for idiopathic scoliosis, and the use of the SRS-22r in non-English Laguage contries requires its transcultural adaptation.
  
  
  OBJECTIVE
  The objective of this study was to culturally adapt the translated Brazilian version of the SRS-22r questionnaire and to determine its reliability using statistical tests for internal consistency and test-retest reliability.
  
  
  METHODS
  The transcultural adaptation process was carried out according to the recommendations of the American Academy of Orthopedic Surgeons. The pre-final version was administered to 44 patients with idiopathic scoliosis. The mean age of the participants was 18.93 years and the mean curve magnitude was 54.6°. A subgroup of 30 volunteers completed the questionnaire a second time one week later to determine the scale's reproducibility. Internal consistency was determined using Cronbach's alpha coefficient, and the test-retest reliability was determined using the Intraclass Correlation Coefficient (ICC).
  
  
  RESULTS
  No floor effects were observed using the Brazilian version of the SRS-22r. Ceiling effects were observed in the Pain and Satisfaction with Management domains. The internal consistency values were very good for 3 domains and good for 2 domains. The ICC values were excellent for all domains.
  
  
  CONCLUSIONS
  The high values of internal consistency and ICC reproducibility suggest that this version of the questionnaire can be used in Brazilian patients with idiopathic scoliosis.
authors.affiliation: Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Department of Biomechanics, Medicine and Rehabilitation of Locomotor Apparatus, Ribeirão PretoSP, Brazil.
authors.forename: Paula M F
authors.initials: PM
authors.lastname: Camarini
authors.forename: Giselle C L
authors.initials: GC
authors.lastname: Rosanova
authors.forename: Bruna S
authors.initials: BS
authors.lastname: Gabriel
authors.forename: Priscila E S
authors.initials: PE
authors.lastname: Gianini
authors.forename: Anamaria S
authors.initials: AS
authors.lastname: Oliveira
mesh_terms: D000293:Adolescent; D000328:Adult; D001938:Brazil; D002648:Child; D003466:Cultural Characteristics; D005260:Female; D006801:Humans; D008297:Male; D011788:Quality of Life; D012600:Scoliosis / Q000534:rehabilitation; D011795:Surveys and Questionnaires; D014177:Translations; D055815:Young Adult