Table 2.
Etiology of hearing loss in the implanted ear
| Etiology | Number (percentage) |
|---|---|
| Chronic otitis media | 1 (0.7%) |
| Cholesteatoma | 1 (0.7%) |
| Familial | 4 (2.6%) |
| Measles | 1 (0.7%) |
| Meniere's disease | 4 (2.6%) |
| Meningitis | 2 (1.3%) |
| Noise | 1 (0.7%) |
| Othera | 19 (12.5%) |
| Otosclerosis | 5 (3.3%) |
| Ototoxic drugs | 1 (0.7%) |
| Rubella | 2 (1.3%) |
| Sudden | 15 (9.9%) |
| Unknown | 94 (61.8%) |
| Viral | 2 (1.3%) |
| Missing data | 7 (4.4%) |
| Total | 159 (100.0%) |
a“Other” etiologies included mumps, middle ear surgery, otitis media, Usher syndrome, Waardenburg syndrome, brain hemorrhage in the womb, oxygen deficiency during birth/perinatal, congenital hearing loss and trauma