Table 2.
Descriptive statistics (means and standard deviations) for behavioral thresholds and intracochlear resistance measures, stratified by etiology and cochlear location (apical or basal).
| Measurement | EVA |
DFNB1 |
||
|---|---|---|---|---|
| Apical M (SD) |
Basal M (SD) |
Apical M (SD) |
Basal M (SD) |
|
| Monopolar thresholds (dB re: 1 μA) | 35.74 (2.89) | 34.72 (3.51) | 30.91 (3.56) | 31.78 (3.04) |
| Focused thresholds (dB re: 1 μA) | 48.66 (5.19) | 45.90 (6.04) | 41.81 (4.71) | 43.02 (4.80) |
| Clinical electrode impedances (kΩ) | 6.00 (2.67) | 6.36 (2.60) | 4.40 (1.16) | 6.45 (2.89) |
| Longitudinal resistance (kΩ) | 0.89 (0.82) | 0.79 (0.93) | 0.31 (0.13) | 0.66 (0.75) |
| Transverse resistance (kΩ) | 23.02 (15.10) | 33.74 (29.16) | 16.76 (6.07) | 15.12 (6.00) |
| Total resistance (kΩ) | 1.68 (0.79) | 1.39 (0.56) | 1.24 (0.24) | 1.43 (0.69) |
Note. For behavioral threshold measurements, data are averaged across Electrodes 2–8 (apical) and Electrodes 9–15 (basal). For intracochlear resistance measures, data are averaged across Electrodes 1–8 (apical; 2–8 for longitudinal resistance) and 9–16 (basal). EVA = enlarged vestibular aqueduct; DFNB1 = connexin-26 genetic mutation.