Table 1.
Patient and tinnitus characteristics
| No | Age | Sex | Aetiology | Dur | THI | Character | Lat | M Freq | M BW | C Freq | C BW | Length | Mod | M dur | Con Ind | STD | Data | PTA | TEOAEs | sMRI |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 41 | M | Ear syringing | 14 | 14 | Noise/ Tonal | B | 5.000 | 4.000 | 2.000 | 1.000 | 20 | RI | 25.0 | 1.00 | 0.24 | 155 | 20 dB,4k,R | 1-4 k,L&2-4 k,R | Y |
| 2 | 32 | M | Idiopathic | 2 | 44 | Tonal | B | 1.750 | 0.076 | 0.750 | 0.076 | 20 | RI | 33.0 | 0.29 | 1.30 | 150 | Normal | x | Y |
| 3 | 50 | F | Idiopathic | 2 | 10 | Tonal | B | 2.175 | 0.025 | 2.075 | 0.025 | 10 | RI | 12.8 | 0.48 | 0.86 | 90 | Normal | 4 k,L&1-4 k,R | Y |
| 4 | 34 | M | Vestibular schwannoma (left) | 15 | 24 | Buzzing | L > R | 3.226 | 0.575 | 1.675 | 1.650 | 20 | RI | 2.9 | 1.00 | 1.52 | 35 | 50 dB,≥1.5 k,B | x | N |
| 5 | 52 | M | Cervical spine problems | 10 | 20 | Tonal | B | 5.900 | 0.025 | 4.700 | 0.025 | 30 | RI | 22.5 | 0.24 | 0.80 | 90 | 30 dB,4k,B and 35 dB,8k,L | 1-4 k,B | Y |
| 6 | 32 | M | Idiopathic | 2,5 | 36 | Tonal | R | 4.025 | 0.126 | 3.750 | 0.126 | 30 | RI | 9.0 | 0.27 | 1.63 | 225 | 36 dB,4k,R and 25-32 dB, 0.5,1,4 k,L | 4 k,L&2.8-4 k,R | Y |
| 7 | 21 | M | Noise trauma | 6 | 10 | Noise | L > R | 4.275 | 0.075 | 0.500 | 0.050 | 20 | RI | 33.1 | 0.45 | 0.14 | 120 | Normal | 1,2.8-4 k, L&2-4 k,R | Y |
| 8 | 51 | M | Idiopathic | 10 | 56 | Buzzing | L > R | 1.200 | 0.050 | 2.000 | 0.050 | 30 | RI | 20.0 | 0.00 | 0.70 | 165 | Normal | x | Y |
| 9 | 21 | M | Noise trauma | 1 | 26 | Buzzing | B | 3.000 | 0.150 | 1.000 | 0.700 | 20 | RI | 40.0 | 0.77 | 0.21 | 150 | Normal | 4 k,B | N |
| 10 | 23 | F | Sensorineural hearing loss | 14 | 46 | Noise | B | 1.425 | 0.525 | 1.050 | 0.525 | 20 | RI | 35.0 | 0.21 | 0.68 | 230 | Total,L and ≤66 dB, ≥2 k,R | x | N |
| 11 | 52 | M | Head/neck trauma | 1,6 | 8 | Buzzing | L | 5.700 | 0.176 | 4.725 | 0.226 | 30 | RI | 18.8 | 0.48 | 0.86 | 150 | Normal | x | Y |
| 12 | 41 | M | Idiopathic | 5 | 28 | Tonal | R | 5.175 | 0.050 | 3.875 | 0.050 | 20 | RI | 9.4 | 0.50 | 1.17 | 100 | No known hearing loss (no PTA) | x | Y |
| 13 | 25 | M | Idiopathic | >10 | 20 | Noise | B | 5.175 | 1.248 | 5.175 | 0.050 | 20 | RI | 31.3 | 1.00 | 0.48 | 190 | 24 dB,1k,L | 1,4 k,L | Y |
| 5.175 | 0.050 | 5.175 | 0.050 | 20 | RE | 6.9 | 1.00 | 0.73 | 85 | |||||||||||
| 14 | 29 | M | NSAIDS + noise trauma | 4 | 18 | Tonal | B | 7.000 | 0.076 | 5.000 | 0.076 | 20 | RE | 20.6 | 0.87 | 0.91 | 125 | Normal | 1-4 k,B | N |
| 15 | 26 | F | Possibly genetic | >10 | 8 | Tonal | B | 1.800 | 0.076 | 1.393 | 0.729 | 20 | RE | 36.3 | 1.00 | 0.11 | 105 | Normal | x | Y |
| 16 | 32 | M | Idiopathic | 6 | 54 | Noise/Tonal/ Music/Other | R > L | 2.500 | 0.500 | 0.600 | 0.500 | 6 | RE | 5.0 | 1.00 | 0.00 | 50 | Bilateral SNHL (no PTA) | x | N |
| 17 | 27 | M | Noise trauma | 0,7 | 54 | Tonal | R | 1.725 | 0.050 | 4.125 | 0.672 | 20 | RI | 10.0 | 0.05 | 0.67 | 110 | 30 dB,4k,B | 4 k,L&2.8-4 k,R | N |
No = patient number for reference to figures; Dur = tinnitus duration (years, months); M Freq = centre frequency of masker (active) stimulus (kHz); B = bilateral; BW = bandwidth; C = control; Freq = centre frequency of stimulus; Lat = laterality; M = masker; THI = tinnitus handicap inventory score (/100); Length = duration of masker and control stimuli (s); Mod = type of tinnitus modification achieved (RI = residual inhibition; RE = residual excitation); M dur = mean duration (s) in which tinnitus rating is non-zero (i.e. modified) following each masker stimulus (including following maskers where no tinnitus modification occurred); Con. Ind. = consistency index, a measure of how much of the total tinnitus modification was due to the masker (not control) stimulus (1 = all modifications due to masker stimulus, 0 = tinnitus modified equally by masker and control stimuli), negative values, indicating greater efficacy of control than masker stimulus, are possible but did not occur; STD = standard deviation of duration of tinnitus modification by the masker stimulus (normalized to mean duration of modification, i.e. mean = 1); Data = total data length per condition used for final analysis (s); PTA = abnormal frequencies on pure tone audiometry (threshold, frequency, ear); TEOAEs = frequency bands exhibiting reduced transient evoked otoacoustic emissions (frequencies, ear); ‘x’ indicates where transient evoked otoacoustic emission data were not available. sMRI inhibition = whether subject’s own (Y) or template (N) structural image was used for analysis. SNHL = sensorineural hearing loss; NSAIDS = non-steroidal anti-inflammatory drugs.