TABLE 2.

Effects of noise exposure on contralateral suppression (CS) on transient evoked otoacoustic emissions (TEOAEs).

CS on TEOAEs (dB)	Males (n = 14)						Females (n = 18)
	Left ear			Right ear			Left ear			Right ear
	Before	1 day post	14 days post	Before	1 day post	14 days post	Before	1 day post	14 days post	Before	1 day post	14 days post
1 kHz	1.10 (3.22)	1.84 (2.26)	1.11 (3.41)	2.09 (1.99)	2.22 (2.27)	2.31 (2.54)	2.43 (2.36)	1.35 (2.79)	2.06 (2.66)	2.82 (2.74)	2.00 (2.29)	2.38 (2.19)
2 kHz	1.21 (3.22)	1.33 (2.76)	1.68 (2.97)	1.41 (2.28)	1.52 (1.57)	2.15 (2.43)	2.57 (2.75)	1.85 (2.16)	2.03 (2.87)	2.99 (3.14)	2.37 (2.26)	2.67 (3.04)
3 kHz	1.86 (2.33)	1.34 (1.74)	1.14 (2.58)	1.40 (2.49)	1.24 (3.28)	1.11 (1.98)	1.68 (3.02)	0.73 (1.79)	1.57 (1.77)	2.26 (2.55)	2.24 (2.48)	2.68 (2.10)
4 kHz	1.21 (2.56)	1.64 (2.81)	1.19 (2.14)	1.01 (2.15)	1.11 (1.76)	1.85 (1.65)	1.73 (1.33)	1.10 (1.70)	1.43 (1.45)	1.38 (2.16)	1.13 (1.81)	1.24 (1.53)
5 kHz	1.15 (2.18)	0.87 (1.73)	1.04 (1.99)	0.54 (1.29)	1.00 (1.71)	0.14 (1.6)	0.64 (2.16)	0.74 (1.86)	0.85 (2.05)	1.11 (2.81)	0.80 (2.78)	1.47 (1.85)
All	1.99 (2.31)	1.91 (1.69)	1.63 (2.69)	1.86 (1.82)	1.91 (0.95)	2.05 (1.49)	2.16 (1.97)	1.34 (1.79)	2.24 (1.86)	2.45 (2.49)	1.82 (1.95)	2.77 (1.65)

There are no statistically significant differences in CS on TEOAEs over 1–5 kHz frequencies and average value between males and females at baseline (before noise exposure) for the left ear (P = 0.841) and right ear (P = 0.608). There are no statistically significant differences in CS on TEOAEs over 1–5 kHz frequencies and average value of males (P = 0.248 for left ear, P = 0.161 for right ear) or females (P = 0.333 for left ear, P = 0.576 for left ear) between the baseline, 1 day and 14 days post the outdoor music festival noise exposure. Analyses were performed by the two-way repeated measures ANOVA.