Hearing Phenotypes of Patients with Hearing Loss Homozygous for the GJB2 c.235delc Mutation

Table 7

Interaural hearing symmetry or asymmetry in patients according to age group.

Age	Interaural hearing symmetry or asymmetry
	Symmetry	Asymmetry
		Type A	Type B	Type C
Group 1	47 (30.13%)	7 (4.49%)	79 (50.64%)	23 (14.74%)
Group 2	12 (41.38%)	1 (3.45%)	10 (34.48%)	6 (20.69%)
Group 3	9 (52.94%)	0	6 (35.29%)	2 (11.76%)
Group 4	20 (47.62%)	6 (14.29%)	11 (26.19%)	5 (11.90%)

Group 1 (≤6 years old), group 2 (6.1–12 years old), group 3 (12.1–18 years old), and group 4 (≥18 years old). The value outside each pair of parentheses represents the number of patients with interaural hearing symmetry or asymmetry; the value inside each pair of parentheses represents the percentage of patients with interaural hearing symmetry or asymmetry relative to the total number of patients in each group.