The Brazilian version of the Quality of Life in Epilepsy Inventory for Adolescents: translation, validity, and reliability.
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.
Barbosa
Fernanda Doretto
FD
Department of Neurology, State University of Campinas, FCM/Unicamp, Campinas, SP, Brazil. fdorettobarbosa@gmail.com
Guerreiro
Marilisa M
MM
de Souza
Elisabete Abib Pedroso
EA
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