| Variable | Category | Patients n (%) |
| Age of Activation Median | 32 (9 - 63) | |
| Gender | Male | 21 (57%) |
| Female | 16 (43%) | |
| Amplification | Unilateral | 30 (81%) |
| Bilateral | 7 (19%) | |
| Etiology | Bilateral Microtia | 11 (29%) |
| Unilateral Microtia | 10 (26%) | |
| Bilateral Mastoidectomy | 5 (13%) | |
| SensorineuralHearingLoss | 4 (10%) | |
| Chronic Otitis Media | 2 (5%) | |
| Teacher Collins syndrome | 2 (5%) | |
| Pfiffersyndrome | 2 (5%) | |
| Unilateral Mastoidectomy | 2 (5%) | |
| Hearing Loss in the ear with the Device | Mixed | 18 (49%) |
| Conductive | 15 (41%) | |
| Sensorineural | 4 (10%) | |
| Unilateral patients. Hearing in contralateral ear. | Mixed | 14 (48%) |
| Normal | 6 (21%) | |
| Sensorineural | 5 (17%) | |
| Conductive | 4 (14%) | |
| Processor | Bp100 | 22 (61%) |
| Divino | 12 (33%) | |
| Ponto | 2 (6%) |