Table 4. Pre and postoperative word recognition scores (WRS) (%).
| Surgical Technique |
Pre-op word recognition scores | Post-op word recognition scores | Word recognition scores in quite with BAHS | Word recognition scores in +5 dB SNR with BAHS | Word recognition scores in 0 dB SNR with BAHS | Word recognition scores in −5 dB SNR with BAHS |
|---|---|---|---|---|---|---|
|
Group A (Punch)
n = 10 |
84.4 ± 8.09 | 81.4 ± 10.24 | 88.4 ± 8.09 | 81.6 ± 7.10 | 67.2 ± 10.46 | 52.8 ± 11.28 |
| Group B (LIT) n = 9 |
86 ± 10.69 | 89 ± 9.97 | 91 ± 9.01 | 88.5 ± 10.12 | 78 ± 14.96 | 65.5 ± 18.99 |
|
*
p value
(GroupA and B) |
0.829 | 0.173 | 0.46 | 0.173 | 0.315 | 0.36 |
| Control Group | Word recognition scores in quite | Word recognition scores in +5 dB SNR | Word recognition scores in 0 dB SNR | Word recognition scores in −5 dB SNR | ||
| Normal Hearing n = 20 |
- | - | 98.6 ± 5.68 | 95.2 ± 5.72 | 92.4 ± 8.25 | 84.8 ± 7.86 |
|
*
p value
(GroupA and normal hearing) |
- | - | .008 * | .005 * | .001 * | .001 * |
|
*
p value
(GroupB and normal hearing) |
- | - | .008 * | .005 * | .001 * | .001 * |
Abbreviations: BAHS, Bone anchored hearing implant; LIT, Linear incision technique.
*
Mann-Whitney U test,p < 0.05.