title: SNOT-22: psychometric properties and cross-cultural adaptation into the Portuguese language spoken in Brazil.
abstract: Rhinosinusitis is a highly prevalent disease and a major cause of high medical costs. It has been proven to have an impact on the quality of life through generic health-related quality of life assessments. However, generic instruments may not be able to factor in the effects of interventions and treatments. SNOT-22 is a major disease-specific instrument to assess quality of life for patients with rhinosinusitis. Nevertheless, there is still no validated SNOT-22 version in our country.
  
  
  OBJECTIVE
  Cross-cultural adaptation of the SNOT-22 into Brazilian Portuguese and assessment of its psychometric properties.
  
  
  METHODS
  The Brazilian version of the SNOT-22 was developed according to international guidelines and was broken down into nine stages: 1) Preparation 2) Translation 3) Reconciliation 4) Back-translation 5) Comparison 6) Evaluation by the author of the SNOT-22 7) Revision by committee of experts 8) Cognitive debriefing 9) Final version. Second phase: prospective study consisting of a verification of the psychometric properties, by analyzing internal consistency and test-retest reliability.
  
  
  RESULTS
  Cultural adaptation showed adequate understanding, acceptability and psychometric properties.
  
  
  CONCLUSIONS
  We followed the recommended steps for the cultural adaptation of the SNOT-22 into Portuguese language, producing a tool for the assessment of patients with sinonasal disorders of clinical importance and for scientific studies.
authors.affiliation: Medical Sciences, Federal University of Rio Grande do Sul.
authors.forename: Guilherme Pilla
authors.initials: GP
authors.lastname: Caminha
authors.forename: José Tavares de
authors.initials: JT
authors.lastname: Melo Junior
authors.forename: Claire
authors.initials: C
authors.lastname: Hopkins
authors.forename: Emilio
authors.initials: E
authors.lastname: Pizzichini
authors.forename: Marcia Margaret Menezes
authors.initials: MM
authors.lastname: Pizzichini
mesh_terms: D001938:Brazil; D003466:Cultural Characteristics; D006801:Humans; D007802:Language; D011594:Psychometrics; D011788:Quality of Life; D012220:Rhinitis / Q000523:psychology*; D012852:Sinusitis / Q000523:psychology*; D011795:Surveys and Questionnaires; D014175:Translating