Table 3 Threshold discrepancy among pure-tone threshold (PTT), pure-tone average (PTA), speech reception threshold (SRT) and predicted pure-tone threshold (PTT) in training set
| Â | Hearing threshold (dB HL) | Discrepancy of hearing level (dB HL) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Pure tone levels - SRT | Actual PTT - Predicted PTT | ||||||||||
| Â | Mean | Â | SD | Mean | Â | SD | p-value | Mean | Â | SD | p-value |
SRT | 44.2 | Â | 16.0 | Â | Â | Â | Â | Â | Â | Â | Â |
PTA | 48.2 |  | 14.7 | 4.0 |  | 5.5 | < 0.001* |  |  |  |  |
PTT at 0.5 kHz | 40.9 |  | 16.2 | -3.3 |  | 7.0 | < 0.001* | 0.03 |  | 6.8 | 0.576 |
PTT at 1Â kHz | 44.5 | Â | 16.0 | 0.3 | Â | 5.5 | 0.752 | 0.02 | Â | 5.4 | 0.843 |
PTT at 2 kHz | 48.6 |  | 16.9 | 4.3 |  | 8.7 | < 0.001* | 0.2 |  | 8.6 | 0.965 |
PTT at 4 kHz | 59.0 |  | 17.3 | 14.7 |  | 14.2 | < 0.001* | -0.4 |  | 13.3 | 0.653 |