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©The Author(s) 2022.
World J Clin Cases. Feb 26, 2022; 10(6): 1815-1825
Published online Feb 26, 2022. doi: 10.12998/wjcc.v10.i6.1815
Published online Feb 26, 2022. doi: 10.12998/wjcc.v10.i6.1815
Table 1 Lower limit at 95% of extended high-frequency audiometry thresholds (n = 86)
EHF (kHz) | mean ± SD | Min | Max | 25th | 50th | 75th | 95th |
9 | 3.14 ± 5.26 | -5.00 | 15.00 | 0.00 | 5.00 | 5.00 | 15.00 |
10 | 0.93 ± 5.34 | -15.00 | 15.00 | -5.00 | 0.00 | 5.00 | 10.00 |
11.2 | 2.50 ± 7.19 | -15.00 | 25.00 | 0.00 | 0.00 | 5.00 | 20.00 |
12.5 | -0.52 ± 6.90 | -15.00 | 20.00 | -5.00 | 0.00 | 5.00 | 15.00 |
14 | 0.52 ± 7.97 | -10.00 | 20.00 | -5.00 | 0.00 | 5.00 | 15.00 |
16 | -3.08 ± 13.15 | -20.00 | 25.00 | -15.00 | -5.00 | 5.00 | 20.00 |
18 | -4.48 ± 16.09 | -20.00 | 30.00 | -20.00 | -10.00 | 10.00 | 28.25 |
20 | -13.78 ± 7.39 | -25.00 | 15.00 | -20.00 | -15.00 | -10.00 | 0.00 |
Table 2 Age distribution for noise exposure and low noise exposure groups (n = 159)
Group | n | Female | Male | Mean ± SD | Min | Max | 25th | 50th | 75th |
Low noise exposure | 61 | 45 | 16 | 21.59 ± 2.00 | 18 | 25 | 20.00 | 21.00 | 23.50 |
Noise exposure | 98 | 64 | 34 | 21.17 ± 1.55 | 18 | 25 | 20.00 | 21.00 | 22.00 |
Table 3 Thresholds of participants for conventional audiometry (n = 159)
Ear | Group | n | 0.25 kHz (mean ± SD) | 0.5 kHz (mean ± SD) | 1 kHz (mean ± SD) | 2 kHz (mean ± SD) | 4 kHz (mean ± SD) | 8 kHz (mean ± SD) |
Right | Low noise exposure | 61 | 7.30 (± 5.21) | 7.82 (± 4.91) | 6.97 (± 4.50) | 6.97 (± 5.42) | 4.26 (± 5.69) | 7.54 (± 6.50) |
Noise exposure | 98 | 6.99 (± 5.91) | 7.65 (± 5.14) | 8.06 (± 4.90) | 8.21 (± 5.62) | 5.87 (± 5.65) | 8.78 (± 6.70) | |
Left | Low noise exposure | 61 | 6.80 (± 5.70) | 6.80 (± 4.48) | 5.66 (± 4.42) | 6.07 (± 5.99) | 5.57 (± 5.63) | 8.28 (± 6.18) |
Noise exposure | 98 | 7.45 (± 5.38) | 8.32 (± 5.70) | 7.14 (± 5.13) | 6.99 (± 5.78) | 5.15 (± 5.54) | 9.03 (± 6.37) |
Table 4 Chi-square test results for extended high-frequency audiometry (n = 159)
Ear | Frequency (kHz) | Group | Normal (N) | Abnormal (N) | Abnormalrate (%) | χ2 | P value |
Right | 9 | 0 | 56 | 5 | 8.2 | 1.33 | 0.25 |
1 | 84 | 14 | 14.3 | ||||
10 | 0 | 51 | 10 | 16.4 | 2.62 | 0.11 | |
1 | 71 | 27 | 27.6 | ||||
11.2 | 0 | 58 | 3 | 4.9 | 2.36 | 0.12 | |
1 | 86 | 12 | 12.2 | ||||
12.5 | 0 | 54 | 7 | 11.5 | 2.13 | 0.15 | |
1 | 78 | 20 | 20.4 | ||||
14 | 0 | 51 | 10 | 16.4 | 1.47 | 0.23 | |
1 | 74 | 24 | 24.5 | ||||
16 | 0 | 52 | 9 | 14.8 | 1.09 | 0.30 | |
1 | 77 | 21 | 21.4 | ||||
18 | 0 | 60 | 1 | 1.6 | 1.00a | ||
1 | 95 | 3 | 3.1 | ||||
20 | 0 | 57 | 4 | 6.6 | 0.77a | ||
1 | 90 | 8 | 8.2 | ||||
Left | 9 | 0 | 52 | 9 | 14.8 | 0.19 | 0.67 |
1 | 81 | 17 | 17.3 | ||||
10 | 0 | 45 | 16 | 26.2 | 0.74 | 0.39 | |
1 | 66 | 32 | 32.7 | ||||
11.2 | 0 | 53 | 8 | 13.1 | 1.02 | 0.31 | |
1 | 90 | 8 | 10.1 | ||||
12.5 | 0 | 51 | 10 | 16.4 | 0.03 | 0.86 | |
1 | 83 | 15 | 15.3 | ||||
14 | 0 | 50 | 11 | 18.0 | 0.05 | 0.83 | |
1 | 79 | 19 | 19.4 | ||||
16 | 0 | 50 | 11 | 18.0 | 0.05 | 0.83 | |
1 | 79 | 19 | 19.4 | ||||
18 | 0 | 57 | 4 | 6.6 | 0.77a | ||
1 | 90 | 8 | 8.2 | ||||
20 | 0 | 56 | 5 | 8.2 | 1.33 | 0.25 | |
1 | 84 | 14 | 14.3 |
Table 5 Chi-square test results for distortion otoacoustic emission (n = 159)
Ear | Frequency(kHz) | Group | Normal (n) | Abnormal (N) | Abnormal rate (%) | Fisher P value |
Right | 1 | 0 | 60 | 1 | 1.6 | 0.41 |
1 | 93 | 5 | 5.1 | |||
1.5 | 0 | 61 | 0 | 0.0 | 0.52 | |
1 | 96 | 2 | 2.0 | |||
2 | 0 | 61 | 0 | 0.0 | 0.52 | |
1 | 96 | 2 | 2.0 | |||
3 | 0 | 61 | 0 | 0.0 | ||
1 | 98 | 0 | 0.0 | |||
4 | 0 | 61 | 0 | 0.0 | 1.00 | |
1 | 97 | 1 | 1.0 | |||
6 | 0 | 56 | 5 | 8.2 | 1.00 | |
1 | 90 | 8 | 8.2 | |||
Left | 1 | 0 | 60 | 1 | 1.6 | 1.00 |
1 | 95 | 3 | 3.1 | |||
1.5 | 0 | 61 | 0 | 0.0 | 1.00 | |
1 | 97 | 1 | 1.0 | |||
2 | 0 | 61 | 0 | 0.0 | 0.52 | |
1 | 96 | 2 | 2.0 | |||
3 | 0 | 60 | 1 | 1.6 | 1.00 | |
1 | 96 | 2 | 2.0 | |||
4 | 0 | 59 | 2 | 3.3 | 0.15 | |
1 | 98 | 0 | 0.0 | |||
6 | 0 | 56 | 5 | 8.2 | 0.51 | |
1 | 93 | 5 | 5.1 |
Table 6 Chi-square test results for transient evoked otoacoustic emission (n = 159)
Ear | Frequency (kHz) | Group | Normal (n) | Abnormal (n) | Abnormal rate (%) | Fisher P value |
Right | 1 | 0 | 61 | 0 | 0.0 | 1.00 |
1 | 97 | 1 | 1.0 | |||
1.5 | 0 | 61 | 0 | 0.0 | 1.00 | |
1 | 97 | 1 | 1.0 | |||
2 | 0 | 60 | 1 | 1.6 | 0.38 | |
1 | 98 | 0 | 0.0 | |||
3 | 0 | 59 | 2 | 3.3 | 1.00 | |
1 | 95 | 3 | 3.1 | |||
4 | 0 | 56 | 5 | 5.2 | 0.05a | |
1 | 78 | 20 | 20.4 | |||
Left | 1 | 0 | 60 | 1 | 1.6 | 0.52 |
1 | 96 | 2 | 2.0 | |||
1.5 | 0 | 61 | 0 | 0.0 | ||
1 | 98 | 0 | 0.0 | |||
2 | 0 | 60 | 1 | 1.6 | 1.00 | |
1 | 96 | 2 | 2.0 | |||
3 | 0 | 60 | 1 | 1.6 | 1.00 | |
1 | 96 | 2 | 2.0 | |||
4 | 0 | 58 | 3 | 4.9 | 0.07 | |
1 | 84 | 14 | 14.3 |
- Citation: Meng ZL, Chen F, Zhao F, Gu HL, Zheng Y. Early detection of noise-induced hearing loss. World J Clin Cases 2022; 10(6): 1815-1825
- URL: https://www.wjgnet.com/2307-8960/full/v10/i6/1815.htm
- DOI: https://dx.doi.org/10.12998/wjcc.v10.i6.1815