Journal
OTOLARYNGOLOGY-HEAD AND NECK SURGERY
Volume 158, Issue 1, Pages 83-89Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0194599817731729
Keywords
ETDQ-7; eustachian tube; otitis media; pressure chamber test; inflation-deflation test; percentage pressure equilibrated
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Funding
- National Institutes of Health [P50 DC007667]
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Objective To compare the accuracy of the Eustachian Tube Dysfunction Questionnaire (ETDQ-7) in identifying people with eustachian tube (ET) dysfunction based on symptoms and an objective ET function test. Study Design Cross-sectional study. ObjSettingective Tertiary referral center. Subjects and Methods Fifty-five subjects with and without symptoms suggestive of ET dysfunction completed the ETDQ-7 and had their ET function evaluated by the percentage of middle ear pressure equilibrated after 5 swallows (PEq(5)) either during a pressure chamber test (intact tympanic membranes) or by the inflation-deflation test (nonintact tympanic membranes). ETDQ-7 score 14.5 and PEq(5) <60% were used to define ET dysfunction, and sensitivity, specificity, and receiver operating characteristic curves were used to assess the level of association between ETDQ-7 scores and PEq(5). Results Twenty-five asymptomatic subjects (group 1 = 15 females, 15 white; mean SD age, 32 +/- 12.8 years) and 30 subjects with ET dysfunction symptoms (group 2 = 17 females, 25 white; age, 27 +/- 16.3 years) were included in the analysis. ETDQ-7 sensitivity and specificity regarding correct group assignment were 70% and 100%, respectively, and with respect to predicting PEq(5)<60%, 54% and 78%. An area under the curve (AUC) of 0.68 (95% CI, 0.53-0.83) at the participant level and 0.64 (95% CI, 0.50-0.77) at the ear level indicated a moderate level of association that was lower, though not statistically significant, for nonintact tympanic membranes (AUC = 0.63 at the participant level and AUC = 0.49 at the ear level). Conclusion The ETDQ-7 score had a higher correlation with the ET dysfunction symptoms than with an objective measure of ET function.
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