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Correlation of differences between post- and pre-operative hearing thresholds and aetiology. (Median, IQR).
| Frequency | Genetic (n = 33) | Other (n = 53) | Idiopathic (n = 69) | p value |
|---|---|---|---|---|
| Average | 11 (6-16) | 11 (5-21) | 14 (6-21) | 0.5 |
| 0.5 kHz | 15 (5-25) | 15 (5-25) | 20 (10-30) | 0.4 |
| 1 kHz | 15 (5-15) | 10 (5-20) | 15 (5-25) | 0.3 |
| 2 kHz | 5 (5-15) | 10 (5-20) | 10 (5-20) | 0.5 |
| 4 kHz | 5 (5-10) | 5 (5-20) | 5 (5-15) | 0.3 |
