Table 2.
Numbers of studies excluded per diagnostic group and reasons for exclusion. Each column represents a different symptom category
| Tinnitus | Vertigo | Hearing loss | Multiple complaint | Dysgeusia | Itch | |
|---|---|---|---|---|---|---|
| No development/validation paper | 13 | 15 | 34 | 3 | - | - |
| Open-ended question(s) | 7 | 2 | 25 | - | - | - |
| Q not self-administered | 1 | 3 | 3 | 1 | - | - |
| No description of development/validation in OA | 4 | 6 | 19 | 3 | 3 | 1 |
| No definitive Q presented | 1 | - | - | - | - | - |
| Off-topic | 1 | 11 | 15 | 2 | - | - |
| No English translation | 3 | 2 | 3 | - | - | - |
| No Q availability | 1 | 6 | 12 | 1 | - | - |
| Pediatric Q | - | - | 8 | 5 | - | - |
| Not a Q | 1 | 3 | 8 | - | - | - |
| 1-item Q | 3 | 3 | 1 | - | - | - |
| Double Q | 9 | 10 | 11 | - | - | - |
| Semi-structured Q | - | - | 2 | - | - | - |
| Total (n = 265) | 44 | 61 | 141 | 15 | 3 | 1 |
Q questionnaire, OA original article. See also Fig. 1, Search 2, exclusions [3] and [4]