Table 1. Comparison of average postoperative pure-tone audiometry at 3 months in both groups.
| Type of graft | Total | ||||
|---|---|---|---|---|---|
| Vein | Fat | ||||
| PTA | Improved | Count | 35 | 34 | 69 |
| % within PTA | 50.7% | 49.3% | 100.0% | ||
| % within type of graft | 100.0% | 97.1% | 98.6% | ||
| Worsened | Count | 0 | 1 | 1 | |
| % within PTA | 0% | 100.0% | 100.0% | ||
| % within type of graft | 0% | 2.9% | 1.4% | ||
| Total | Count | 35 | 35 | 70 | |
| % within PTA | 50.0% | 50.0% | 100.0% | ||
| % within type of graft | 100.0% | 100.0% | 100.0% | ||
Abbreviation: PTA, pure-tone audiometry.
Pearson chi-squared test: 1.014
Degree of freedom = 1
p= 0 .314.