Table 4 Comparison between TEOAEs (absolute thresholds) and DPOAEs (signal to noise threshold levels) with contralateral suppression in study and control groups
From: Auditory fatigue among call center operators with headset
Freq. (Hz) | Study group Mean ± SD | Control group Mean ± SD | t value | p |
|---|---|---|---|---|
TEOAEs | ||||
1000 | 10.41 ± 3.83 | 9.68 ± 3.07 | 0.988 | 0.326 |
1500 | 10.48 ± 4.44 | 11.01 ± 3.10 | 1.855 | 0.067 |
2000 | 9.65 ± 3.66 | 10.57 ± 2.34 | 1.399 | 0.165 |
3000 | 9.50 ± 3.73 | 10.18 ± 1.87 | 1.064 | 0.290 |
4000 | 9.45 ± 3.09 | 8.276 ± 2.77 | 1.129 | 0.262 |
DPOAEs | ||||
1003 | 16.73 + 5.48 | 14.71 + 5.86 | 0.023 | 0.982 |
1409 | 17.59 + 5.05 | 18.91 + 5.40 | − 1.223 | 0.225 |
2000 | 17.08 + 5.71 | 18.20 + 5.53 | − 0.961 | 0.339 |
2822 | 16.9 + 4.15 | 17.40 + 4.63 | − 0.455 | 0.650 |
3991 | 16.74 + 6.30 | 16.77 + 5.09 | − 0.029 | 0.977 |
5649 | 17.81 + 6.05 | 16.68 + 5.23 | − 2.23 | 0.976 |