Table 1 Tinnitus characteristics of the patients included in the various studies
Sl no | Author | Pitch match | Loudness match | Laterality of tinnitus | Duration of tinnitus | Severity | The scale used to measure tinnitus severity |
|---|---|---|---|---|---|---|---|
1 | Rossiter and Walker [13] | NM | NM | B/L: 14 U/L: 5 |  > 3 months | Mild | THI |
2 | Huang et al. [7] | NM | 5.25 on 9-point scale | B/L: 15 U/L: 5 |  > 2 months | Chronic | THI, TLS |
3 | Sanches et al. [4] | NM | NM | B/L | NM | NM | NM |
4 | Gabriela, Sanches, and Ganz [21] | High frequency | NM | B/L |  > 1 year | NM | NM |
5 | An et al. [22] | 250 to 8 kHz | 20 to 60 dB SPL | B/L: 14 U/L: 25 |  > 12 months | NM | NM |
6 | Ryu et al. [14] | 250 Hz to 8 kHz | 8.3 (SD = 6.8) dB SPL | U/L |  > 12 months | 30.2 plus or minus 16.9 of 100 | THI |
7 | Gilani et al. [5] | NM | NM | U/L |  > 12 months | NM | NM |
8 | Fournier and Hébert [20] | Ranged from 250 Hz to 16 kHz Maximum at 16 kHz | Ranged from 25 to 55 dB SPL | B/L |  > 6 months | NM | NM |
9 | Jain and Sahoo [8] | NM | NM | B/L |  > 3 months | Mild to moderate | THI |
10 | Shakarami et al. [29] | 2 klHz to 8Â kHz | Slight to severely loud | B/L: 10 U/L: 6 | 6 to 36Â months | Mild to severe | THI |
11 | Moon et al. [10] | NM | NM | B/L: 9 U/L: 9 |  > 6 months | NM | NM |
12 | Gilles et al. [6] | NM | NM | U/L:19 |  > 3 months | NM | NM |
13 | Jain and Dwarkanath [9] | NM | NM | B/L: 16 U/L: 22 |  > 6 months | Mild to severe | THI |
14 | Tai & Husain [15] | Wide frequency range | 48.36 (25.71)/100 | B/L: 14 |  > 3 years | Chronic tinnitus | THI |
15 | Ravirose, Thanikaiarasu, and Prabhu [12] | 250 Hz to 8 kHz | 20 to 40 dB HL | B/L:15 | 62–4 months | NM | NM |
16 | Kondli, Amruthavarshini, and Prashanth [30] | NM | NM | B/L:9 U/L: 6 | 6–24 months | Mild to severe | THI |
17 | Mohanapriya [31] | 250 Hz to 8 kHz | 20 to 40 dB HL | B/L or U/L: 20 |  > 3 months | Mild to severe | THI |
18 | Raj et al. [11] | 0.125 to 12.5 kHz | 2 to 65 dB | B/L: 70%, U/L: 30% | 3.8 (SD = 2.5) years | Chronic | THI |