Table 4: Air bone gap (ABG) average and groups

Group A Group B P value
Preoperative ABG average
Postoperative ABG average
32.50 1.50
8.50 1.25
30.75 1.25
9.25 0.75
significant p < 0.0001
significant p < 0.0001
Postoperative ABG
   - ≤ 10 dB
   - 11-20 dB
   - 21-30 dB

85% (34/40)
15% (6/40)
0

80.7% (29/36)
19.3% (7/36)
0

Significant p < 0.0001
Significant p < 0.0001