33 Questionnaires in otology: a systematic mapping review 2 Table 3: The selected 155 questionnaires subdivided per symptom category. TINNITUS (n=33) VERTIGO (n=23) HEARING LOSS (n=84) MULTIPLE COMPLAINT (n=15) Nonspecified tinnitus (n=33) Non-specified vertigo (n=14) Hyperacusis (n=4) Meniere’s disease (n=3) Simulator sickness (n=2) Hearing impaired (n=32) Otitis media (n=3) Motion sickness (n=2) Hearing aid users (n=16) Vestibular schwannoma (n=1) Benign Paroxismal Positional Vertigo (n=3) Cochlear implant users (n=11) Eustachian tube dysfunction (n=1) Persistent PosturalPositional Vertigo (n=1) Geriatric population / older adults (n=2) General otology population (n=2) Visual vertigo (n=1) Autophony (n=2) Superior canal dehiscence (n=1) Hearing aid candidates (n=4) Dizziness sufferers (n=1) General population (n=12) General population (n=2) Otology patient, not further defined (n=1) Cochlear Implant users (n=1) Patulous Eustachian tube (n=1) Discussion Questionnaires are essential for the assessment of subjective complaints and disability in the otology population. To date, no comprehensive overview of all, in English available, structured otology questionnaires for adults exist. As presented in this article, 155 unique validated questionnaires were identified, classified into four categories. These categories are tinnitus questionnaires, vertigo questionnaires, hearing loss questionnaires, and multiple complaint questionnaires (i.e., ≥3 symptoms of interest), containing 33, 23, 84, and 15 unique questionnaires, respectively. Questionnaires were categorized according to symptom and target population (Table 3) demonstrating a great variety between and within symptom categories. There is no subdivision within the tinnitus category. Thus, all 33 questionnaires are eligible for every tinnitus patient. The other 3 symptom categories do contain subcategories. In contrast to “tinnitus,” the “hearing loss” category has 10 subgroups with varying numbers of questionnaires. Table 3 gives a clear overview of the number of questionnaires available and shows how many questionnaires can be subdivided into different (sub)categories. We have not identified a similar overview in the literature on questionnaires in otology. Supported with the questionnaire characteristics presented in the additional online files 4, 5, 6, and 7, clinicians are facilitated in the selection of an appropriate questionnaire, being able to select a questionnaire based on its construct, number of items, or the availability of a validated translation.
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