Table 1. The seven-item Eustachian tube dysfunction questionnaire.

Over the past 1 month, how much has each of the following been a problem for you?	No problem		Moderate problem			Severe problem
1. Pressure in the ears?	1	2	3	4	5	6	7
2. Pain in the ears?	1	2	3	4	5	6	7
3. A feeling that your ears are clogged or "under water"?	1	2	3	4	5	6	7
4. Ear symptoms when you have a cold or sinusitis?	1	2	3	4	5	6	7
5. Crackling or popping sounds in the ears?	1	2	3	4	5	6	7
6. Ringing in the ears?	1	2	3	4	5	6	7
7. A feeling that your hearing is nuffled?	1	2	3	4	5	7	7

Adapted from McCoul et al.⁹⁾ with permission of Wiley.