Table 3.

Mean pure-tone audiometric threshold levels (db HL) for rock musicians (n = 111) and controls (n = 40), right and left ears with standard deviations and P values

Pure-tone audiometric threshold levels
Frekvency kHz	Right ear (dB HL)			Left ear (dB HL)
	Rock musicians dB HL (SD)	Controls dB HL (SD)	P	Rock musicians dB HL (SD)	Controls dB HL (SD)	P
0.125	6.9 (4.6)	6.0 (4.1)	.306	7.3 (5.0)	5.1 (5.1)	.097
0.25	5.4 (5.4)	3.3 (4.3)	.027	5.7 (4.8)	3.0 (4.4)	.002
0.5	5.2 (5.2)	2.8 (4.1)	.006	5.2 (5.2)	2.4 (3.9)	.001
1	4.1 (4.5)	2.0 (3.5)	.011	5.0 (4.7)	0.9 (3.4)	.000
2	3.4 (7.9)	1.6 (4.4)	.090	5.5 (8.0)	1.9 (6.0)	.011
3	6.4 (11.2)	2.1 (6.1)	.023	7.6 (9.8)	3.5 (6.4)	.016
4	9.0 (14.0)	4.1 (6.2)	.037	9.9 (11.5)	5.9 (6.7)	.041
6	21.3 (11.5)	11.5 (7.1)	.000	22.4 (11.3)	10.8 (7.6)	.000
8	8.7 (10.0)	5.0 (5.5)	.030	8.6 (10.8)	7.3 (7.2)	.477