Table 1.
Demographic characteristics
| Total population (N = 242 patients) | ||
|---|---|---|
| Age at implantation | Mean, SD (years) | 47, 24 |
| Gender | Male: Female | 111:131 |
| Etiology of deafness | ||
| Congenital | Hereditary | 45 |
| Acquired | 12 | |
| Anatomical | 3 | |
| Unknown | 50 | |
| Acquired | Meningitis | 10 |
| Meniere’s disease | 8 | |
| Trauma | 2 | |
| Otosclerosis | 1 | |
| Recurrent otitis | 1 | |
| Unknown | 110 | |
All methods were carried out in accordance with relevant guidelines and regulations related to retro-spective research with existing data, as stated by our institutional Medical Ethical Committee.