TABLE 2.
Type of tympanometry in students with abnormal middle ear function (n = 71 girls, n = 22 boys).
| Variable | Type B |
Type C |
Type As |
Type Ad |
Combination† |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| n | % | n | % | n | % | n | % | n | % | |
| Bilateral | ||||||||||
| Girls | 7 | 9.8 | 6 | 8.5 | 15 | 21.2 | 1 | 1.4 | 8 | 11.3 |
| Boys | 2 | 9.2 | 10 | 45.5 | 0 | 0.0 | 0 | - | 3 | 13.6 |
|
| ||||||||||
| Total | 9 | 9.6 | 16 | 17.3 | 15 | 16.2 | 1 | 1.1 | 11 | 11.8 |
|
| ||||||||||
| Unilateral | ||||||||||
| Girls | 7 | 9.8 | 7 | 9.8 | 16 | 22.6 | 4 | 5.6 | - | - |
| Boys | 0 | 0.0 | 3 | 13.6 | 1 | 4.5 | 3 | 13.6 | - | - |
|
| ||||||||||
| Total | 7 | 7.5 | 10 | 10.7 | 17 | 18.3 | 7 | 7.5 | - | - |
†
, Combination: two different types of tympanograms for both ears.