Table 3.
Mean speech perception scores obtained in the current study compared to participants with late onset of hearing loss from the previous study by Heutink et al. (CS), as well as specifically for participants in whom the electrode array located in the scala tympani (CS–ST) and scala vestibuli (CS–SV) [4]
| eRW (Current study) | CS (Heutink et al.) | CS–ST (Heutink et al.) | CS–Translocation (Heutink et al.) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean (SD) | N | Mean (SD) | N | p value | Mean (SD) | N | p value | Mean (SD) | N | p value | |
| Preoperative CVC-phoneme score (%) | 27.1 (16.9) | 22a | 7.2 (12.9) | 12 | 0.001 | 10.5 (16.5) | 6 | 0.042 | 3.83 (8.0) | 6 | 0.003 |
| Postoperative CVC-phoneme score (%) (2-month) | 72.1 (18.0) | 21b | 60.6 (23.4) | 11 | 0.138 | 72.4 (14.3) | 5 | 0.973 | 50.83 (26.0) | 6 | 0.031 |
| Postoperative CVC-phoneme score (%) (12-month) | 81.1 (11.1) | 21 | 77.6 (15.1) | 8 | 0.496 | 88.3 (10.8) | 4 | 0.251 | 67.0 (10.9) | 4 | 0.028 |
aPreoperative CVC scores were missing for one participant (#6)
bOne participant (#1) was excluded from post-operative speech perception outcome analysis due to a retro-cochlear etiology of hearing loss and one participant was lost to follow-up (#21)