Table 2.
List of individual ABR and ASSR hearing threshold estimations for ears with CM (cochlear malformation), CNH (cochlear nerve hypoplasia) and CM + CNH (combined cochlear malformation and cochlear nerve hypoplasia)
| Group | ABR (in dB HL) | ASSR (in dB HL) | ||||||
|---|---|---|---|---|---|---|---|---|
| 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz | |
| CM | ||||||||
| 1 | 80 | 80 | 85 | 80 | 80 | 80 | 85 | |
| 2 | – | 75 | 85 | 100 | 100 | 75 | 85 | |
| 3 | 70 | 80 | 80 | 70 | 80 | 70 | 70 | |
| 4 | – | – | – | – | – | – | – | |
| 5 | – | – | – | – | 100 | 100 | 100 | |
| 6 | – | – | – | – | – | – | 90 | – |
| 7 | 95 | 90 | 90 | 70 | 90 | 90 | 90 | |
| 8 | 100 | 100 | 100 | 80 | 90 | 90 | 100 | |
| CNH | ||||||||
| 1 | – | – | – | 80 | 90 | 80 | 70 | |
| 2 | – | – | – | – | 100 | 100 | 100 | 90 |
| 3 | – | 80 | 100 | 85 | 80 | 60 | 45 | |
| 4 | – | – | – | 75 | 65 | 70 | 80 | |
| 5 | – | – | – | 90 | 90 | 90 | 50 | |
| CM + CNH | ||||||||
| 1 | 95 | – | 100 | 90 | 80 | 80 | 60 | |
| 2 | 100 | – | – | 80 | 80 | 80 | 80 | |
| 3 | – | – | – | 80 | 90 | 60 | 50 | |
| 4 | – | – | – | – | – | – | 100 | – |
| 5 | – | – | – | – | – | – | 100 | – |
| 6 | – | – | – | – | 100 | 100 | 80 | |
| 7 | – | – | – | 100 | 90 | 90 | 80 | |