Frequency | Control ear | Diseased ear | Difference | P value |
0.5 KHz | 13.15 ± 9.47 | 14.20 ± 8.98 | 1.05 | 0.30 |
1 KHz | 11.95 ± 8.34 | 13.85 ± 7.38 | 1.9 | 0.03* |
2 KHz | 14.90 ± 12.03 | 18.85 ± 10.63 | 3.95 | 0.001** |
4 KHz | 16.60 ± 11.36 | 21.05 ± 12.83 | 4.45 | 0.001** |