Table 2. Comparison of postoperative air bone gap closure achieved in both groups.
| Type of graft | Total | ||||
|---|---|---|---|---|---|
| Vein | Fat | ||||
| ABG closure |
≤ 10 dB | Count | 28 | 30 | 58 |
| % within ABG closure | 48.3% | 51.7% | 100.0% | ||
| % within type of graft | 80.0% | 85.7% | 82.9% | ||
| 11–20 dB | Count | 7 | 5 | 12 | |
| % within ABG closure | 58.3% | 41.7% | 100.0% | ||
| % within type of graft | 20.0% | 14.3% | 17.1% | ||
| Total | Count | 35 | 35 | 70 | |
| % within ABG closure | 50.0% | 50.0% | 100.0% | ||
| % within type of graft | 100.0% | 100.0% | 100.0% | ||
Abbreviation: ABG, air bone gap.
Pearson chi-squared test: 0.402
Degree of freedom =1
p = 0.526.