Variable VTI VTI VTI Tympanoplasty Tympanoplasty Tympanoplasty Mastoidectomy Mastoidectomy Mastoidectomy
Children (23) Adults (34) P Children (5) Adults (51) P Children (3) Adults (17) P
Hearing gain (dB) 18.3 17.8 0.932 7.4 10.3 0.386 5.2 11.3 0.337
Preoperative air-bone gap 23.5 24.3 0.783 21 24.8 0.321 28.5 29.7 0.866
Postoperative air-bone gap 4.8 9.9 0.051 13.7 14.5 0.842 23.3 18.5 0.517
Success rate (%) 100 100 - 80 96 0.253 100 100 -
Postoperative complication rate (%) 0 0 0 0 0 0