Table 3.
Pre- and post-operative hearing conditions of two groups
| Group | P | ||
|---|---|---|---|
| TEES (n = 224) | MES (n = 121) | ||
| Air condition (dB) | |||
| Preoperative | 37.846 ± 9.41 | 36.508 ± 9.83 | 0.216 |
| Postoperative 1 month | 26.10 ± 7.21 | 26.24 ± 7.39 | 0.87 |
| Postoperative 3 months | 26.02 ± 7.29 | 26.02 ± 7.33 | 0.999 |
| Postoperative ≥ 6 months | 25.94 ± 7.07 | 26.50 ± 7.82 | 0.427 |
| Bone-condition (dB) | |||
| Preoperative | 18.69 ± 1.70 | 18.38 ± 5.29 | 0.588 |
| Postoperative 1 month | 18.25 ± 4.61 | 18.22 ± 4.74 | 0.954 |
| Postoperative 3 months | 18.27 ± 4.62 | 18.24 ± 4.75 | 0.343 |
| Postoperative ≥ 6 months | 18.21 ± 4.57 | 18.25 ± 4.74 | 0.948 |
| Air–bone gap (dB) | |||
| Preoperative | 19.26 ± 6.43 | 18.13 ± 6.01 | 0.113 |
| Postoperative 1 month | 7.85 ± 4.14 | 8.02 ± 4.26 | 0.727 |
| Postoperative 3 months | 7.75 ± 4.11 | 7.94 ± 4.26 | 0.681 |
| Postoperative ≥ 6 months | 7.72 ± 4.00 | 8.34 ± 4.84 | 0.201 |
| Average hearing gain (dB) | |||
| Postoperative 1 month | 11.61 ± 5.55 | 10.40 ± 5.18 | 0.052 |
| Postoperative 3 months | 11.76 ± 5.43 | 10.71 ± 5.31 | 0.091 |
| Postoperative ≥ 6 months | 11.85 ± 5.47 | 10.48 ± 5.18 | 0.031 |