Investigating the Efficacy of an Individualized Alpha/Delta Neurofeedback Protocol in the Treatment of Chronic Tinnitus
Table 1
Demographics, health, and tinnitus characteristics of the study sample.
Mean
Median
Min
Max
Age
46.29
12.22
44
24
71
Mean hearing loss (dB)
7.54
8.25
4.4
0
22.8
Tinnitus duration (months)
78.92
74.63
40
18
312
Age of onset
39.75
14.66
39
14
67
Tinnitus loudness
53.25
19.57
50
20
95
Tinnitus distress (THI)
29.33
14.7
27
4
56
Tinnitus distress (TQ)
23.75
11.63
23
6
45
BDI sum scorea
6.29
4.34
7
0
13
BAI sum scorea
7.12
5.77
6.5
0
21
WHOQOL-BREF domain 1: physical healthb
76.49
14.48
79
43
100
WHOQOL-BREF domain 2: psychological healthb
69.97
15.78
69
42
96
WHOQOL-BREF domain 3: social relationshipb
66.32
19.73
67
25
100
WHOQOL-BREF domain 4: environmentb
81.51
11.28
84
62
100
WHOQOL-BREF global valueb
67.19
18.36
62
25
100
SCL-K-9c
0.72
0.71
1
0
3
SF-36: mental healthe
45.79
9.46
47
22
60
SF-36: physical healthe
53.38
6.76
55
35
60
Note: SD: standard deviation. aSum scales (0-84) measuring severity of depressive/anxiety symptoms. bScaled sum scores (0-100) indicating quality of life in specific domains or globally. cMean over all items (0-4) measuring general psychological strain. eNormed sum scales (,) indicating mental/physical disability; higher values indicate less disability.
