Table 2 Differences between patients with and without hyperacusis.
| No hyperacusis | Hyperacusis | p Value | |
|---|---|---|---|
| No of patients | 25 | 15 | |
| Sex (F/M)* | 25/0 | 13/2 | 0.061 |
| Age (y)† (mean (SD)) | 42.7 (9.6) | 40.6 (11.3) | 0.538 |
| Disease duration (y)† (mean (SD)) | 10.4 (4.9) | 13.1 (10.5) | 0.365 |
| Type of onset | |||
| Unknown | 8 | 3 | |
| Contusion | 7 | 3 | |
| Fracture | 4 | 6 | |
| Operation or IV | 6 | 3 | |
| Location of onset | |||
| Upper extremity (L/R) | 3/5 | 3/4 | |
| Lower extremities (L/R) | 4/13 | 0/8 | |
| No of affected extremities | |||
| 1 | 2 | 0 | |
| 2 | 7 | 0 | |
| 3 | 6 | 6 | |
| 4 | 10 | 9 | |
| Spreading pattern | |||
| None | 2 | 0 | |
| Ipsilateral | 12 | 10 | |
| Heterolateral | 9 | 3 | |
| Diagonal | 2 | 2 | |
| VAS pain (0–100 mm)† (mean (SD)) | 68.7 (16.1) | 75.4 (16.4) | 0.278 |
| Movement disorders | |||
| Dystonia | 15 | 6 | |
| Dystonia + tremor | 5 | 1 | |
| Dystonia + myoclonia | 4 | 7 | |
| Dystonia + tremor + myoclonia | 1 | 1 | |
| Allodynia and/or hyperalgesia* | 0.026 | ||
| Yes | 13 | 13 | |
| No | 12 | 2 |
VAS, Visual Analogue Scale.
*the χ2 test; †the t test for independent samples.