Surgical (Group 1) N=12
Conservative (Group 2) N=12
Gender- male (%) 8 (66%) 7 (58%)
Age at audiometry (months) 40.4 45.2
Age at disease (months) 20.2 20.1
Abnormal bone conduction (SNHL) * 0/5 0/5
CHL in affected ear in children with BC thresholds 3/5 3/5
CHL in contralateral ear in children with BC thresholds 1/5 3/5
Abnormal free field exam 0/5 0/4