Age groups, years | All | 16–44 y | 45–64 y | > 64 y |
---|---|---|---|---|
(N = 45) | (n = 28) | (n = 14) | (n = 3) | |
N (%) | N (%) | N (%) | N (%) | |
Hearing loss in at least one eara | ||||
Mild (20–34 dB) | 18 (40) | 12 (43) | 6 (43) | 0 (0) |
Disabling (≥ 35 dB) | 6 (13) | 2 (7) | 1 (7) | 3 (100) |
Unilateral hearing lossa | ||||
Mild (20–34 dB) | 3 (7) | 3 (11) | 0 (0) | (0) |
Disabling (≥ 35 dB) | 2 (4) | 2 (8) | 0 (0) | (0) |
Hearing loss in the better earb | ||||
Mild (20–34 dB) | 15 (33) | 9 (32) | 6 (43) | 0 (0) |
Disabling (≥ 35 dB) | 4 (9) | 0 (0) | 1 (7) | 3 (100) |
Abnormal tympanometryc | ||||
Unilateral | 8 (18) | 5 (18) | 3 (21) | 0 (0) |
Bilateral | 24 (53) | 12 (43) | 9 (64) | 3 (100) |
Abnormal stapedius reflexd | ||||
Unilateral | 5 (11) | 3 (11) | 2 (14) | 0 (0) |
Bilateral | 27 (60) | 16 (57) | 8 (57) | 3 (100) |
Type of hearing loss | ||||
Conductive | 15 (33) | 12 (43) | 3 (21) | 0 (0) |
Sensorineural | 1 (2) | 1 (4) | 0 (0) | 0 (0) |
Mixed | 8 (18) | 1 (4) | 4 (29) | 3 (100) |