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.
