Table 1.
Patients' demographic data.
| Study group | Healthy group | |
|---|---|---|
| Patients (numbers) | 20 | 20 |
| Age (years ± SD) | ||
| Mean ± SD (years) | 48.5 ± 11.3 | 46.9 ± 15.3 |
| Range (years) | 31–66 | 31–59 |
| Male: Female | 17:3 | 16:4 |
| Duration of the tinnitus | ||
| Mean ± SD (years) | 5.1 ± 6.3 | |
| Range (years) | 0.5–23 | |
| Tinnitus location | ||
| Bilateral | 18 (90) | |
| Unilateral | 2 (10) | |
| Tinnitus character | ||
| Persistent | 19 (95) | |
| Intermittent | 1 (5) | |
| Tinnitus subjective quality | ||
| High pitch/hissing | 7 (35) | |
| High pitch/Gee–Gee sound | 7 (35) | |
| High-pitch/hissing + Gee–Gee sound | 1 (5) | |
| High-pitch/hissing + Chi–Chi sound | 1 (5) | |
| High pitch/ringing | 1 (5) | |
| Low pitch/roaring | 3 (15) | |