Cross-cultural adaptation of the Brazilian Portuguese version of Quality of Life Headache-Youth (QLH-Y) Questionnaire

Abstract

Objectives: To translate into Portuguese, culturally adaptand validate the Quality of Life Headache - Youth (QLH-Y),assessing its reliability through internal consistency of its itemsin a sample of adolescents of both sexes, attending publicschools in the city of Recife. Methods: The originalinstrument was translated from English into Portuguese,generating a synthetic consensus. The Portuguese version ofthe instrument was back translated, and then developed apre-final version for a field test. After the suitability of theinstrument into Portuguese was conducted a pilot study with100 students. Results: The findings of the internal consistencyof the Brazilian version were very good, with the alpha valueof 0.906 (greater than 0.7) indicating a degree high internalconsistency. Conclusion: The Portuguese version of QLH -Y has an excellent internal consistency and a goodunderstanding of its items for cross-cultural adaptation inthe city of Recife