Table 3.
Baseline Characteristics and Demographics
|
Treatment Group No. of subjects |
|||||
|---|---|---|---|---|---|
|
TRT (n = 19) |
SC (n = 19) |
delta p value |
|||
|
Age, y 18–50 51–65 66–75 |
3 14 2 |
3 11 5 |
n.s. | ||
|
§ Gender Male (%) Female (%) |
13 (68) 6 (32) |
13 (68) 6 (32) |
|||
|
Race White Black Other |
19 0 0 |
19 0 0 |
|||
|
Pure tone thresholds dB HL (SD) 0.5 1 kHz 2 kHz 4 kHz 6 kHz 8 kHz |
LEFT 20 (8.6) 23 (9.6) 39 (16.1) 57 (7.9) 54 (10.4) 53 (11.7) |
RIGHT 19 (8.1) 22 (10.5) 36 (15.3) 52 (11.9) 52 (9.7) 53 (12.4) |
LEFT 19.7 (6.3) 22.1 (8.9) 35.5 (16.3) 53.4 (11.7) 57.4 (15.7) 56.3 (17.5) |
RIGHT 20.3 (5.9) 21.8 (7.5) 34.5 (17.5) 52.9 (12.3) 54.7 (14.9) 56.3 (19.4) |
.655† |
| THI meana ‡ (SD) | 51.47 (10.15) | 51.61 (11.15) | .969 | ||
| BDI (SD) | 12.2 (6.4) | 8.2 (4.9) | .131 | ||
| ∫ Average loudness of tinnitus over the past month (SD) | 73.6 (14.9) | 72.7 (15.3) | .997 | ||
| ∫∫ Effort to ignore (SD) | 67.5 (18.7) | 76.4 (17.1) | .381 | ||
| ∫∫∫ Bothersomeness (SD) | 66.9 (13.6) | 69.5 (15.5) | .930 | ||
| Negative impact on sleep, TFI subscale (SD) | 48.0 (29.1) | 59.8 (29.6) | .606 | ||
|
Duration of tinnitus problem, between: 1 and 2 years 2 and 3 years 3 and 5 years More than 5 years |
1 4 0 14 |
1 0 3 15 |
n.s. | ||
a
*Mean score for screening and entry prior to treatment; †ANOVA Standard of Care vs TRT, all frequencies. ‡Indicates randomization variable. ANOVA = analysis of variance; SD = standard deviation; TFI = Tinnitus Functional Index; THI = Tinnitus Handicap Inventory; TRT = tinnitus retraining therapy.
∫ Likert scale 0–100; 0 anchored as very quiet, 100 as very loud
∫ Likert scale 0–100; 0 anchored as LOW, 100 as HIGH
∫∫∫ Likert scale 0–100; 0 anchored as not bothersome, 100 as unbearable