Table 1.

Cochlear implant (CI) user demographics. PTA: Better ear unaided four-tone pure tone average at .5, 1, 2, and 4 kHz; B: Bilateral; R: Right; L: Left

Participant	Gender	Age (years)	Implantation Age (years)	Duration of CI Use (years)	Side of Implant	Hearing Aid	Etiology of Hearing Loss	Better Ear PTA (dB HL)
1	F	65	54	11	B	N	Genetic, progressive as adult	120
2	F	66	62	4	R	Y	Genetic, progressive as adult	78.8
3	F	67	58	9	R	Y	Genetic, progressive as adult	103.8
4	M	70	65	5	R	N	Genetic, progressive as adult	88.8
5	F	57	48	9	R	Y	Genetic, progressive, noise	82.5
6	M	79	76	3	R	Y	Genetic, progressive	70
7	F	69	56	13	B	N	Otosclerosis	112.5
8	M	55	50	5	B	N	Progressive as adult	120
9	F	76	68	8	L	N	Progressive, autoimmune	108.8
10	M	79	74	5	L	N	Progressive as adult	108.8
11	F	81	71	10	R	N	Progressive, sudden hearing loss	88.8
12	M	59	57	2	B	N	Sudden hearing loss	120
13	M	78	72	6	B	N	Progressive as adult	120
14	M	69	62	7	B	N	Genetic, progressive	120
15	F	50	35	15	B	N	Progressive as child and adult	117.5
16	F	64	61	3	R	N	Progressive as adult	10.3.8
17	F	67	58	9	B	N	Meniere’s	120
18	M	83	76	7	R	Y	Progressive as adult, noise	68.8
19	F	73	67	6	R	N	Progressive as child and adult	98.8
20	M	76	73	3	L	Y	Progressive, infections	72.5
21	F	79	45	34	R	Y	Progressive as adult	57.5
22	M	74	72	2	R	Y	Progressive as child and adult	92.5
23	M	66	60	6	L	N	Meniere’s	80
24	F	65	63	2	R	N	Genetic, progressive as adult	86.3
25	F	62	59	3	B	N	Sepsis, ototoxicity	95
Mean / %	56% F	69.1	61.7	7.5	48% R	32% Y		97.2
St. Dev.		8.6	10.3	6.5	16% L			19.7
					36% B