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Summary of results.
| Factors | Variables | % | n |
|---|---|---|---|
| Gender | Males | 28 | 24 |
| Females | 72 | 63 | |
| Tympanometry | Type Ad | 70 | 9 |
| Type As | 15 | 2 | |
| Type B | 15 | 2 | |
| Type C | 0 | 0 | |
| Visualisation quality | Good quality | 87 | 173 |
| Poor quality | 13 | 25 | |
| Middle ear pathology | Tympanometry | 8 | 13 |
| Video otoscopy | 11 | 17 |
Note: The range: 25–72 years, with a mean age of 46 years.
