Frequency (kHz) | 0.25 | 0.5 | 1 | 2 | 4 | Average threshold |
Affected side | 13.1 ± 9.5 | 18.4 ± 10.8 | 17.1 ± 12.4 | 24.7 ± 13.7 | 24.6 ± 14.7 | 18.3 ± 10.7 |
Non-affected side | 12.8 ± 7.7 | 17.1 ± 9.1 | 16.0 ± 10.6 | 20.4 ± 10.5** | 22.2 ± 14.8 | 16.6 ± 8.8* |
t value | 0.33 | 1.22 | 0.93 | 3.51 | 1.85 | 3.18 |
P value | 0.74 | 0.23 | 0.36 | 0.001 | 0.07 | 0.04 |