Table 1.
Subject demographic information.
| Subject | Sex | Age (yrs) |
Duration of hearing loss (yrs) |
Etiology | Hearing aid experience (yrs) |
Cochlear implantation |
|---|---|---|---|---|---|---|
| S111 | F | 43 | 29 | Autoimmune-mediated hearing loss | 0 | Both ears |
| S112 | M | 77 | 26 | Noise-induced progressive hearing loss | 26 | Left ear only |
| S113 | F | 84 | 24 | Unknown | 22 | None |
| S114 | M | 50 | 46 | Neonatal mumps | 45 | Left ear only |
| S115(a) | F | 46 | 1.5 | Idiopathic sudden sensorineural hearing loss (single side deafness) |
0 | Left ear only |
| S116 | F | 55 | 43 | Unknown | 31 | None |
| S118 | F | 66 | Left: 4 Right: 2 months |
Left: Meniere’s disease Right : Idiopathic sudden sensorineural hearing loss |
0 | None |
| S119 | M | 71 | 28 | Unknown | 24 | Right ear only |
| S120 | F | 70 | 66 | Childhood measles | 52 | Right ear only |
| S121(b) | F | 54 | 50 | Encephalopathy | 0 | None |
| S122(c) | F | 19 | 17 | Encephalopathy | 7 | None |
| S123 | M | 57 | 29 | Otosclerosis | 29 | None |
| S124 | M | 73 | 30 | Unknown | 12 | Left ear only |
| S125 | F | 40 | 40 | Unknown | 39 | To be implanted |
| S126 | F | 65 | 3 | Idiopathic sudden sensorineural hearing loss | 0.3 | None |
(a)
S115 has single side deafness and received a CI on the left ear. Her right ear show normal audiometric function. See Table 2 for details.
(b)
S121 has been unsuccessful in wearing hearing aids. She last tried them about 7 years ago but she felt wearing hearing aids made her understanding of speech poorer.
(c)
Auditory neuropathy spectrum disorder. She was initially fit with binaural hearing aids at age 9, but she eventually stopped wearing the right hearing aid because "it didn't make the speech clearer."