Turkish validity and reliability of Eustachian Tube Dysfunction Questionnaire-7

Publication date: Available online 31 May 2017
Source:Brazilian Journal of Otorhinolaryngology
Author(s): Erdoğan Özgür, Cem Bilgen, Beyhan Cengiz Özyurt
IntroductionDuring clinical evaluations, in order to interpret patients' complaints caused by Eustachian Tube Dysfunction (ETD) and to monitor the success of the treatment, standardized and disease-related scales are necessary.ObjectiveThe aim of this study was to investigate the validity and reliability of the Turkish version of Eustachian Tube Dysfunction Questionnaire-7.MethodsForty patients diagnosed with ETD and 40 healthy individuals were enrolled for the study. After language validation of the ETDQ-7 for Turkish, a scale was completed by the both ETD and control groups. Two weeks after the first evaluation, 15 of the cases filled out the scale again without any treatment intervention. Known-groups method was used in validity analysis. Floor-ceiling effect, test–retest method, item-total score correlation and internal consistency analysis were used in reliability analyses.ResultsCronbach's alpha coefficient was 0.714 for the entire questionnaire. The test–retest reliability coefficient for the total scale was determined as 0.792, indicating correlation between the two questionnaires completed by the same patient over time. In the ETD group, total and each item scores were found significantly higher than the control group (p<0.001).ConclusionThe Turkish version of ETDQ-7 was found to be highly valid and reliable. This scale is recommended to use for screening of ETD and evaluating treatment outcome.



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