title: [Portuguese validation of the symptom inventory of the M.D. Anderson Cancer Center].
abstract: OBJECTIVE
  To analyze the reliability and validity of the psychometric properties of the Brazilian version of the instrument for symptom assessment, titled MD Anderson Symptom Inventory - core.
  
  
  METHODS
  A cross-sectional study with 268 cancer patients in outpatient treatment, in the municipality of Ijuí, state of Rio Grande do Sul, Brazil.
  
  
  RESULTS
  The Cronbach's alpha for the MDASI general, symptoms and interferences was respectively (0.857), (0.784) and (0.794). The factor analysis showed adequacy of the data (0.792). In total, were identified four factors of the principal components related to the symptoms. Factor I: sleep problems, distress (upset), difficulties in remembering things and sadness. Factor II: dizziness, nausea, lack of appetite and vomiting. Factor III: drowsiness, dry mouth, numbness and tingling. Factor IV: pain, fatigue and shortness of breath. A single factor was revealed in the component of interferences with life (0.780), with prevalence of activity in general (59.7%), work (54.9%) and walking (49.3%).
  
  
  CONCLUSIONS
  The Brazilian version of the MD Anderson Symptom Inventory - core showed adequate psychometric properties in the studied population.
authors.affiliation: Ijuí, Universidade do Noroeste do Estado do Rio Grande do Sul, Cuiabá, RS, Brazil.
authors.forename: Adriane Cristina Bernat
authors.initials: AC
authors.lastname: Kolankiewicz
authors.affiliation: Escola Paulista de Enfermagem, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
authors.forename: Edvane Birelo Lopes De
authors.initials: EB
authors.lastname: Domenico
authors.affiliation: Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
authors.forename: Luís Felipe Dias
authors.initials: LF
authors.lastname: Lopes
authors.affiliation: Center for Health Sciences, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
authors.forename: Tânia Solange Bosi de Souza
authors.initials: TS
authors.lastname: Magnago
mesh_terms: D000203:Activities of Daily Living; D001938:Brazil; D002173:Cancer Care Facilities; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D007802:Language; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000150:complications*; D011594:Psychometrics; D015203:Reproducibility of Results; D063189:Symptom Assessment / Q000379:methods*; D014177:Translations