Matching Analysis between normal hearing (NH) subjects and cochlear implant (CI) users in patients ≥15 years old (group A)

Matching Factors		CI	NH	P value
Age(years)		20.27±1.42	22.25±3.62	0.101
Gender, n (%)	Male	8 (72.7%)	5 (41.6%)	0.214
	Female	3 (27.3%)	7 (58.3%)
Education level, n (%)	Bachelor’s degree or lower	5 (45.5%)	8 (75%)	0.414
	Master’s degree or higher	6 (54.5%)	4 (25%)
Professional musical training in family*, n (%)	yes	6 (54.5%)	7 (58.3%)	1.000
	no	5 (45.5%)	5 (41.6%)

* Formal training of at least one of the first-degree relatives for more than six months