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Air bone gap (pre and post-operative air bone gap)
| ABG | Preoperative PTA | Post operative PTA at 12 weeks | ||
|---|---|---|---|---|
| Patients | Percentage | Patients | Percentage | |
| 0–10 dB | 1 | 3.33% | 11 | 36.67% |
| 11–20 dB | 12 | 40% | 18 | 60% |
| 21–30 dB | 13 | 43.33% | 1 | 3.33% |
| > 30 dB | 4 | 13.33% | 0 | 0% |
| Total | 30 | 100% | 30 | 100% |
| Mean | 22.087 ± 6.120 dB | 13.387 ± 5.253 dB | ||
| p value | 0.001 (significant) | |||
