Table 5.
Postoperative audiological assessment (functional gain).
| Sound-field PTA |
SRT |
WRS |
||||||
|---|---|---|---|---|---|---|---|---|
| Audio processor | With BAHA (dB HL) mean ± SD | Without BAHA (dB HL) mean ± SD | Gain with BAHA (dB HL) mean | With BAHA (dB HL) median±IQ | Without BAHA (dB HL) median±IQR | Gain with BAHA (dB HL) median | With BAHA (%) median ± IQR | Without BAHA (%) median±IQR |
| Baha® 5 (n = 14) | 27.1 ± 6.3 | 55.5 ± 17.2 | 28.4 | 30.0 ± 10.0 | 52.5 ± 30.0 | 27.5 | 97.5 ± 5.0 | 87.5 ± 15.0 |
| Baha® 5 Power (n = 6) | 32.3 ± 6.9 | 61.83 ± 10.4 | 29.5 | 40.0 ± 8.8 | 67.5 ± 27.5 | 27.5 | 95.0 ± 6.3 | 85.0 ± 21.3 |
| Baha® 5 SuperPower (n = 2) | 36.3 ± 1.8 | 68.1 ± 9.7 | 31.8 | 42.5 ∗ | 70.0 ∗ | 27.5 | 90.0 ∗ | 77.5 ∗ |
| Overall (n = 22) | 29.4 ± 6.8 | 58.4 ± 15.2 | 29 ǂ | 40.0 ± 11.3 | 62.5 ± 30.0 | 22.5 Ɨ | 95.0 ± 6.25 Ɨ | 85.0 ± 15.0 Ɨ |
Legend: PTA – Pure tone average; SRT – Speech recognition threshold; WRS - word recognition score; HL – Hearing level; SD – Standard deviation; IQR – Interquartile range.
∗ IQR could not be calculated (n = 2).
ǂ Paired t-test: p = 0.002.
Ɨ Wilcoxon's signed-rank test: p < 0.001.