Table 1.

Six week recovery period disaggregated CF and threshold shifts

Six week frequency band	CF shift		Percentage		N	Threshold shift		Percentage
	Up	Down	Up	Down		Up	Down	Up	Down
< 0.5 kHz
sm17	0	0	0.0	0.0	2	1	0	50.0	0.0
sm69	1	0	100.0	0.0	1	0	0	0.0	0.0
sm75	0	2	0.0	20.0	10	8	0	80.0	0.0
Subtotal	1	2	7.7	15.4	13	9	0	69.2	0.0
0.5–1 kHz
sm17	4	3	12.5	9.4	32	18	0	56.3	0.0
sm69	6	2	14.6	4.9	41	22	0	53.7	0.0
sm75	25	8	58.1	18.6	43	24	0	55.8	0.0
Subtotal	35	13	30.2	11.2	116	64	0	55.2	0.0
1–2 kHz
sm17	7	4	18.4	10.5	38	26	0	68.4	0.0
sm69	5	1	9.3	1.9	54	23	0	42.6	0.0
sm75	31	1	72.1	2.3	43	26	0	60.5	0.0
Subtotal	43	6	31.9	4.4	135	75	0	55.6	0.0
2–4 kHz
sm17	0	1	0.0	5.0	20	6	0	30.0	0.0
sm69	0	5	0.0	11.6	43	11	0	25.6	0.0
sm75	7	1	21.9	3.1	32	24	0	75.0	0.0
Subtotal	7	7	7.4	7.4	95	41	0	43.2	0.0
4–8 kHz
sm17	0	3	0.0	21.4	14	0	0	0.0	0.0
sm69	0	0	0.0	0.0	0	0	0	0.0	0.0
sm75	0	1	0.0	8.3	12	3	0	25.0	0.0
Subtotal	0	4	0.0	15.4	26	3	0	11.5	0.0
>8 kHz
sm17	0	0	0.0	0.0	0	0	0	0.0	0.0
sm69	0	0	0.0	0.0	0	0	0	0.0	0.0
sm75	0	0	0.0	0.0	0	0	0	0.0	0.0
Subtotal	0	0	0.0	0.0	0	0	0	0.0	0.0
All bands
Total	86	32	22.3	8.3	385	192	0	49.9	0.0
Monkey
sm17	11	11	10.4	10.4	106	51	0	48.1	0.0
sm69	12	8	8.6	5.8	139	56	0	40.3	0.0
sm75	63	13	45.0	9.3	140	85	0	60.7	0.0

N, Sample size.