TABLE IV.

Descriptive statistics for the DPOAE measures (N = 133). The mean and standard error (in parenthesis) are presented. The data were reported before substituting the noise levels for DPOAEs with SNR < 0 dB.

Right ear
F2	1000	2000	3000	4000	6000	8000	9000	10500	11200	12500	14000	16000
Amplitude	5.46 (0.61)	7.83 (0.59)	6.18 (0.51)	6.86 (0.60)	9.93 (0.67)	−1.96 (0.87)	−3.31 (0.69)	−2.05 (0.83)	6.00 (0.97)	7.33 (1.02)	4.69 (0.92)	−5.69 (0.99)
Noise	−11.90 (0.38)	−15.69 (0.37)	−19.91 (0.30)	−21.01 (0.29)	−13.59 (0.28)	−13.82 (0.35)	−13.79 (0.34)	−11.41 (0.37)	−7.88 (0.39)	−7.61 (0.38)	−13.65 (0.37)	−16.95 (0.39)
SNR	17.36 (0.59)	23.53 (0.61)	26.09 (0.59)	27.87 (0.60)	23.52 (0.69)	11.85 (0.61)	9.40 (0.52)	9.35 (0.57)	13.14 (0.68)	14.94 (0.73)	17.60 (0.71)	11.25 (0.69)
#SNR > 6 dB	128	132	133	133	132	105	94	92	114	115	122	95
#SNR 0–6 dB	2	1	0	0	1	17	26	26	13	12	7	18
#SNR < 0 dB	3	0	0	0	0	11	13	15	6	6	4	20

Left ear
F2	1000	2000	3000	4000	6000	8000	9000	10500	11200	12500	14000	16000
Amplitude	4.16 (0.62)	7.77 (0.54)	5.05 (0.53)	6.33 (0.60)	8.65 (0.71)	−1.70 (0.84)	−5.44 (0.82)	−3.24 (0.82)	4.03 (0.95)	6.38 (0.97)	2.59 (1.08)	−5.92 (1.01)
Noise	−11.31 (0.42)	−14.34 (0.38)	−18.76 (0.36)	−20.44 (0.33)	−13.67 (0.29)	−14.20 (0.36)	−13.64 (0.39)	−11.12 (0.35)	−7.66 (0.37)	−7.44 (0.41)	−13.80 (0.40)	−17.14 (0.42)
SNR	15.47 (0.53)	22.11 (0.59)	23.81 (0.60)	26.73 (0.60)	21.53 (0.74)	10.37 (0.61)	8.19 (0.54)	7.87 (0.58)	11.70 (0.67)	13.82 (0.67)	16.38 (0.82)	11.20 (0.69)
#SNR > 6 dB	125	132	132	132	129	93	80	78	100	115	116	96
#SNR 0–6 dB	5	0	1	0	0	21	35	26	19	10	10	20
#SNR < 0 dB	3	1	0	1	4	19	18	29	14	8	7	17