Translation, Cross-Cultural Adaptation, and Validation of the Eustachian Tube Dysfunction Patient Questionnaire for Assessing Eustachian Tube Dysfunction in Greece.

BACKGROUND AND OBJECTIVES

Eustachian tube dysfunction (ETD) is prevalent among patients with ENT disorders, necessitating history-taking, clinical examination, and appropriate investigation for diagnosis. Eustachian Tube Dysfunction Patient Questionnaire (ETDQ-7) is a valuable tool for subjectively assessing symptom severity related to this condition. This study aims to adapt and validate the ETDQ-7 in Greece, ensuring its accuracy and efficacy in outpatient settings. Subjects and.

METHODS

The ETDQ-7 was translated into Greek following established methodology. Data were collected from 75 Greek patients diagnosed with ETD and 25 control patients without ETD. Participants completed the adapted ETDQ-7 and underwent a clinical examination, with statistical analysis correlating with their ETDQ-7 responses. Statistical analyses were performed to determine the questionnaire's reliability and validity.

RESULTS

Internal consistency and item analyses were performed to validate the questionnaire. Face and content validity were confirmed, and patients found the questionnaire easy to administer and complete. Test-retest reliability demonstrated similar internal consistency and a strong correlation between individual items and the total score. Discriminative validity revealed a statistically significant difference between the two patient groups, supporting the usefulness of the Greek version of ETDQ-7 in confirming the diagnosis of ETD.

CONCLUSIONS

The Greek version of ETDQ-7 proves to be safe and effective for diagnosing ETD in Greek-speaking populations, complementing various investigative methods.