Table 5. Comparison Between TEOAE Results in Different Frequencies Before and One Week After Exposure.
| Tested Frequencies | Mean±SD before exposure | Mean±SD one week after exposure | Mean difference | P- Value |
|---|---|---|---|---|
| WWR(right ear) | 75.3±21.4 | 68.3±26.8 | 6.83 | 0.022 |
| SNR 0.5KHz(right ear) | 11.5±7.5 | 9.4±7.9 | 2.1 | 0.029 |
| SNR 1KHz(right ear) | 11.5±7.5 | 9.3±7 | 2.2 | 0.019 |
| SNR 2KHz (right ear) | 12.3±5.6 | 9.9±6.1 | 2.4 | 0.029 |
| SNR 3KHz(right ear) | 8.2±5.4 | 5.3±5.8 | 2.9 | 0.029 |
| SNR 4KHz(right ear) | 7.4±5.1 | 2.5±4.3 | 4.9 | 0.008 |
| WWR(left ear) | 69.5±24.4 | 64.1±33.9 | 5.4 | 0.054 |
| SNR 0.5KHz(left ear) | 10.1±5.8 | 8.9±5.9 | 0.2 | 0.198 |
| SNR 1KHz(left ear) | 10.2±5.8 | 8.9±4.8 | 1.3 | 0.052 |
| SNR 2KHz(left ear) | 10.3±6.1 | 9.9±6.7 | 0.4 | 0.570 |
| SNR 3KHz(left ear) | 6.7±4.7 | 6.4±5.7 | 0.22 | 0.975 |
| SNR 4KHz(left ear) | 4.5±5.7 | 4.4±6.6 | 0.01 | 0.992 |