Table 1.

Participant demographics.

Subject	Age at surgery (years)	Length of deafness (years)	Age at HA fit (years)	Age at Dx (years)	Hearing loss onset	NBHS result	Etiology	Affected ear	Pre-op PTA CI (dB HL)	Pre-op PTA Contra (dB HL)
01	6.4	1.9	4.0	4.0	Known sudden	pass	Infection	Right	112	2
02	6.3	1.4	Never aided	5.0	Reported sudden	pass	Unknown	Right	88	15
03	4.5	1.4	Never aided	3.0	Known sudden	pass	Trauma	Right	120	3
04	6.1	6.1	2.0	2.0	Suspected congenital	fail, pass on rescreen	Malformation	Left	85	20
05	4.7	4.7	Never aided	0.2	Known congenital	failed unilateral	Waardenburg	Right	118	20
06	12.7	2.3	Never aided	10.0	Reported sudden	pass	Unknown	Left	97	8
07	4.0	4.0	1.8	0.7	Known congenital	failed unilateral	Malformation	Right	82	10
08	6.5	4.6	Never aided	3.0	Progressive suspected	pass	Unknown	Right	120	7
09	6.5	6.5	Never aided	6.0	Suspected congenital	fail, pass on rescreen	Unknown	Left	110	8
10	7.1	2.3	Never aided	4.0	Reported sudden	pass	cCMV	Left	95	7
11	6.1	3.5	Never aided	5.0	Progressive suspected	pass	Unknown	Right	120	2
12	3.9	1.8	Never aided	0.2	Known progressive	failed unilateral	cCMV	Left	113	22
13	4.8	4.2	Never aided	2.0	Known progressive	failed unilateral	Unknown	Right	120	8
14	5.4	1.3	Never aided	4.0	Reported sudden	pass	Unknown	Left	118	2
15	5.5	0.8	4.0	3.0	Known progressive	Was not tested	Unknown	Left	77	8
16	3.7	3.8	Never aided	2.0	Suspected congenital	fail, pass on rescreen	Unknown	Right	120	8
17	5.4	5.4	Never aided	0.1	Known congenital	failed unilateral	Unknown	Left	117	8
18	3.5	3.6	0.2	0.2	Known congenital	failed unilateral	Unknown	Left	120	15
19	3.9	3.9	Never aided	3.0	Suspected congenital	fail, pass on rescreen	Unknown	Left	110	15
20	3.6	3.6	3.0	0.1	Known congenital	failed unilateral	cCMV	Right	120	3

Note. HA = hearing aid; Dx = diagnosis; NBHS = newborn hearing screen; CI = cochlear implant; PTA = pure-tone average (500, 1000, and 2000 Hz); cCMV = congenital cytomegalovirus.