Table I.

Listeners’ age, whether they were current hearing aid users (Y/N), thresholds in dB HL at each frequency (in kHz). Listeners are arranged according to the average thresholds at 1.0, 2.0, and 4.0 kHz.

			Threshold, dB HL
Listener	Age	Aid?	0.25	0.5	1.0	2.0	3.0	4.0	6.0	8.0
1	68	N	10	15	10	5	30	35	50	55
2	55	N	5	15	10	10	55	55	65	60
3	60	N	5	10	15	20	45	50	60	55
4	63	N	20	20	15	25	40	45	55	45
5	61	Y	10	5	10	40	40	40	70	55
6	64	N	0	15	20	25	30	50	55	35
7	68	Y	5	5	5	35	60	55	70	50
8	47	N	10	15	20	20	60	60	60	55
9	71	N	15	20	35	30	30	40	65	65
10	63	N	30	45	30	30	45	45	45	40
11	83	Y	5	20	15	40	30	50	70	80
12	64	N	10	25	45	40	30	25	55	40
13	59	N	25	25	20	35	50	55	65	60
14	70	N	30	40	25	35		50	60	70
15	53	Y	5	15	20	35	55	60	55	60
16	61	Y	15	15	20	50	60	50	50	60
17	50	Y	15	25	35	45	45	45	65	60
18	54	Y	45	45	40	40	45	50	55	55
19	53	N	15	25	30	35	60	65	65	65
20	61	Y	25	25	15	55	60	65	60	55
21	70	Y	20	25	40	40	45	55	70	65
22	82	Y	25	30	40	45	50	55	60	35
23	31	Y	55	50	50	45	40	50	65	50
24	66	Y	20	35	60	55	50	55	65	60
Mean	61.5		17.5	23.5	26.0	34.8	45.9	50.2	60.6	55.4
SD	10.7		12.9	11.9	14.1	12.4	10.6	9.0	6.8	10.6