Variable VTI VTI Tympanoplasty Tympanoplasty Mastoidectomy Mastoidectomy
Children Adults Children Adults Children Adults
Ears (number) 23 34 5 51 3 17
Mean age (years) 7.6 50.1 11.2 50.5 10 45.1
Age range (years) 3-18 24-78 6-15 27-78 5-16 26-60
Male sex (%) 60.9% 82.4% 20.0% 42.0% 33.3% 35.3%