Translation and Cross-Cultural Adaptation of the Newcastle Laryngeal Hypersensitivity Questionnaire to Brazilian Portuguese.

OBJECTIVE

To translate and cross-culturally adapt the Newcastle Laryngeal Hypersensitivity Questionnaire (LHQ) to the Brazilian Portuguese language.

MATERIAL AND

METHODS

The translation and cross-cultural adaptation procedures were performed in five stages: translation, synthesis, back-translation, committee review, and pretest performance.

RESULTS

At the end of the first four stages, a questionnaire was produced in Brazilian Portuguese, known as the Questionário Newcastle de Hipersensibilidade Laríngea (LHQ-Br). This version was given as a pretest to 31 participants with laryngeal hypersensitivity: 14 were in the muscle tension dysphonia clinical group, 10 in the refractory chronic cough group, and seven in the globus pharyngeus group. There was a difference in the frequency of occurrence choices in question five ("my throat is blocked"; P = 0.007) and question eight ("I have a sensation of something pushing on my chest"; P = 0.026), but in both questions, the frequency choice of "never" was significantly higher than the other options in all three clinical groups. The relative frequency of participants picking the 'nonapplicable' option in all clinical groups for all questions was zero.

CONCLUSION

This study showed satisfactory results for the translation and cross-cultural adaptation of the LHQ to Brazilian Portuguese (LHQ-Br).