title: TRANSLATION AND VALIDATION OF THE BRAZILIAN PORTUGUESE VERSION OF THE GASTROINTESTINAL SYMPTOM RATING SCALE (GSRS) QUESTIONNAIRE.
abstract: BACKGROUND
  - Bowel function is a widely evaluated parameter in interventional and longitudinal studies since it is associated with good maintenance of health. The evaluation of intestinal function has been performed by many questionnaires, however, there are few options validated in Brazilian Portuguese.
  
  
  OBJECTIVE
  - The aim of this work was to translate and validate into Brazilian Portuguese the Gastrointestinal Symptom Rating Scale (GSRS) questionnaire.
  
  
  METHODS
  - Translation and cultural adaptation were performed according to a previously established methodology followed by reliability calculations.
  
  
  RESULTS
  - The final translated GSRS questionnaire showed an adequate value of overall reliability of Cronbach's alpha of 0.83, and its domains were classified from acceptable to adequate. The overall test-retest reliability by intraclass correlation coefficient (ICC) was 0.84, considered excellent.
  
  
  CONCLUSIONS
  - The GSRS was translated and validated into Brazilian Portuguese, with appropriate internal consistency and reliability and is available to be used in assessments of bowel function.
authors.affiliation: Programa de Pós-graduação em Ciência dos Alimentos, Faculdade de Ciências Farmacêuticas, USP, São Paulo, SP, Brasil.
authors.forename: Gabriela Santos
authors.initials: GS
authors.lastname: Souza
authors.affiliation: Programa de Pós-graduação em Ciência dos Alimentos, Faculdade de Ciências Farmacêuticas, USP, São Paulo, SP, Brasil.
authors.forename: Fabiana Andrea Hoffmann
authors.initials: FA
authors.lastname: Sardá
authors.affiliation: Food Research Center (FoRC/Cepid/Fapesp), Brasil.
authors.forename: Eliana Bistriche
authors.initials: EB
authors.lastname: Giuntini
authors.affiliation: Programa de Pós-graduação em Nutrição Humana Aplicada Pronut/FCF/FEA/FSP - USP, São Paulo, SP, Brasil.
authors.forename: Iara
authors.initials: I
authors.lastname: Gumbrevicius
authors.affiliation: Escola Paulista de Medicina, Universidade Federal de São Paulo, SP, Brasil.
authors.forename: Mauro Batista de
authors.initials: MB
authors.lastname: Morais
authors.affiliation: Food Research Center (FoRC/Cepid/Fapesp), Brasil.|Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, USP, São Paulo, SP, Brasil.
authors.forename: Elizabete Wenzel de
authors.initials: EW
authors.lastname: Menezes
mesh_terms: D000328:Adult; D001938:Brazil; D003431:Cross-Cultural Comparison; D005260:Female; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D011594:Psychometrics; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires / Q000592:standards*; D063189:Symptom Assessment; D014177:Translations