Table 1.
Baseline characteristics of the early start group and the delayed start group.
| Characteristic | Early-Start Group | Delayed-Start Group | Total | p Value | Statistic Test | Value | Df |
|---|---|---|---|---|---|---|---|
| Number of subjects | 40 | 40 | 80 | ||||
| Gender male/female | 18/22 (45%/55%) | 24/16 (60%/40%) | 42/38 (53%/47%) | 0.168 | Chi-square | 1.805 | 1 |
| Age in years (SD) | 46 (13) | 45 (15) | 45 (14) | 0.769 | t-test | 0.294 | 78 |
| TQ (SD) | 37 (16) | 34 (15) | 36 (16) | 0.345 | t-test | 0.951 | 75 |
| TFI (SD) | 55 (17) | 48(15) | 52 (16) | 0.086 | t-test | 1.741 | 78 |
| TQ degree | |||||||
| % degree 1 | 30% | 49% | 39% | ||||
| % degree 2 | 40% | 30% | 35% | 0.376 | Chi-square | 3.105 | 3 |
| % degree 3 | 15% | 13% | 14% | ||||
| % degree 4 | 15% | 8% | 12% | ||||
| VAS mean loudness tinnitus right ear (SD) | 50 (30) | 49 (25) | 49 (27) | 0.835 | t-test | 0.209 | 78 |
| VAS mean loudness tinnitus left ear (SD) | 46 (31) | 45 (26) | 45 (28) | 0.858 | t-test | 0.180 | 78 |
| TMD pain screener (percentage < 3/percentage ≥ 3) | 35%/65% | 35%/65% | 40%/60% | 0.272 | Chi-square | 7.561 | 6 |
| HQ (SD) | 17 (8) | 19 (9) | 18 (8) | 0.958 | t-test | −0.053 | 76 |
| HADS anxiety (SD) | 9 (4) | 8 (4) | 9 (4) | 0.076 | t-test | 1.695 | 77 |
| HADS depression (SD) | 7 (5) | 5 (4) | 6 (5) | 0.257 | t-test | 1.429 | 75 |
| Fletcher index left (SD) | 13 (17) | 11 (11) | 13 (17) | 0.725 | t-test | 0.135 | 78 |
| Fletcher index right (SD) | 11 (10) | 13 (14) | 11 (12) | 0.359 | t-test | −1.254 | 76 |
SD: standard deviation. TQ: Tinnitus Questionnaire. TFI: Tinnitus Functional Index. VAS: Visual Analogue Scale. TMD: Temporomandibular Disorder. HADS: Hospital Anxiety and Depression Scale. HQ: Hyperacusis questionnaire.