Table 4.
The arithmetic means (±SD) of pure tone audiometry hearing thresholds at frequencies from 125 Hz to 8000 Hz in patients with GPA in different types of hearing impairment.
| Frequency | Type of Hearing Impairment | |||
|---|---|---|---|---|
| Normal Hearing | CHL | SNHL | MHL | |
| Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD | |
| 125 Hz | 11.0 ± 3.9 | 32.5 ± 3.5 | 15.6 ± 4.2 | 26.9 ± 17.7 |
| 250 Hz | 10.5 ± 3.7 | 35.0 ± 14.1 | 13.8 ± 4.4 | 30.6 ± 21.1 |
| 500 Hz | 10.0 ± 3.3 | 37.5 ± 3.5 | 14.4 ± 3.2 | 38.1 ± 22.0 |
| 1000 Hz | 11.0 ± 3.2 | 37.5 ± 10.6 | 15.6 ± 9.0 | 38.9 ± 20.7 |
| 2000 Hz | 11.0 ± 3.9 | 40.0 ± 0.0 | 16.3 ± 9.2 | 43.1 ± 25.2 |
| 4000 Hz | 14.0 ± 7.0 | 35.0 ± 0.0 | 34.4 ± 17.4 | 57.5 ± 26.7 |
| 8000 Hz | 14.5 ± 5.0 | 47.5 ± 24.7 | 30.6 ± 20.6 | 65.0 ± 34.9 |