title: The Brazilian version of the Quality of Life in Epilepsy Inventory for Adolescents: translation, validity, and reliability.
abstract: OBJECTIVE
  The aim of this study was to translate and adapt the Quality of Life in Epilepsy Inventory for Adolescents (QOLIE-AD-48) into Brazilian Portuguese, as well as to evaluate the psychometric properties of this Brazilian version.
  
  
  METHODS
  The QOLIE-AD-48 Brazilian version was tested with respect to reliability and validity in 93 adolescents with epilepsy. Patients completed the Self-Esteem Inventory (SEI), Children's Depression Evaluation Scale (CDES), and Adverse Events Profile (AEP). A subset of these patients were reexamined after 3-4 weeks to evaluate the test-retest reliability of the inventory. We assessed validity by comparing the QOLIE-AD-48 Brazilian version with external measures.
  
  
  RESULTS
  Internal consistency was satisfactory (Cronbach's alpha=0.87). Test-retest reliability was acceptable as well (intraclass correlation coefficient=0.52-0.81). Moreover, the QOLIE-AD-48 Brazilian version was highly correlated with other scales, demonstrating strong validity.
  
  
  CONCLUSIONS
  We conclude that the QOLIE-AD-48 Brazilian version has psychometric properties equivalent to those of the original American-English version and is a valid and reliable instrument for assessment of health-related quality of life in adolescents with epilepsy in Brazil or other Portuguese-speaking countries.
authors.affiliation: Department of Neurology, State University of Campinas, FCM/Unicamp, Campinas, SP, Brazil. fdorettobarbosa@gmail.com
authors.forename: Fernanda Doretto
authors.initials: FD
authors.lastname: Barbosa
authors.forename: Marilisa M
authors.initials: MM
authors.lastname: Guerreiro
authors.forename: Elisabete Abib Pedroso
authors.initials: EA
authors.lastname: de Souza
mesh_terms: D000293:Adolescent; D000328:Adult; D001938:Brazil / Q000453:epidemiology; D003431:Cross-Cultural Comparison; D004827:Epilepsy / Q000453:epidemiology / Q000523:psychology*; D005260:Female; D006305:Health Status Indicators; D006801:Humans; D008297:Male; D011788:Quality of Life / Q000523:psychology*; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires; D014175:Translating