Table 1.

Statistical analysis of hair cell survival, as determined by DASPEI assessment (Fig. 2) or hair cell counts (Fig. 3)

Assessment method	Voltage	Variable	F score	p value
DASPEI	0.7 V	Exposure time	F_(12,211) = 1.54	p = 0.2396
		Recovery time	F_(6,211) = 1.34	p < 0.0001
		Interaction	F_(12,211) = 1.54	p = 0.1131
DASPEI	1.2 V	Exposure time	F_(6,216) = 25.26	p < 0.0001
		Recovery time	F_(2,216) = 144.0	p < 0.0001
		Interaction	F_(12,216) = 6.23	p < 0.0001
DASPEI	1.7 V	Exposure time	F_(6,216) = 19.72	p < 0.0001
		Recovery time	F_(2,216) = 38.83	p < 0.0001
		Interaction	F_(12,216) = 4.33	p < 0.0001
Hair cell counts	1.2 V aLL	Exposure time	F_(2,91) = 13.39	p < 0.0001
		Recovery time	F_(2,91) = 12.30	p < 0.0001
		Interaction	F_(4,91) = 4.42	p = 0.0026
Hair cell counts	1.7 V aLL	Exposure time	F_(2,93) = 10.87	p < 0.0001
		Recovery time	F_(2,93) = 4.97	p = 0.0089
		Interaction	F_(4,93) = 3.02	p = 0.0217
Hair cell counts	1.2 V pLL	Exposure time	F_(2,89) = 4.90	p = 0.0095
		Recovery time	F_(2,89) = 12.30	p < 0.0001
		Interaction	F_(4,89) = 3.27	p = 0.0151
Hair cell counts	1.7 V pLL	Exposure time	F_(2,91) = 9.85	p = 0.0001
		Recovery time	F_(2,91) = 3.62	p = 0.0308
		Interaction	F_(4,91) = 6.50	p = 0.0001