Table 1.

Mean ± SD for the ABR thresholds at three times: before (baseline), after the SS administration [day 14], and following the NPPC injection (day 28).

	Frequency KHz	Baseline [Mean ± SD]	Day 14 [Mean ± SD]	Day 28 [Mean ± SD]	P.value [Sig.]
Control Group	6	23.75 ± 5.17	22.50 ± 7.07	21.25 ± 6.40	0.59
	12	22.50 ± 7.07	22.50 ± 4.62	18.75 ± 8.34	0.39
	24	26.25 ± 5.17	23.75 ± 5.17	21.25 ± 3.53	0.14
Study Group	6	27.50 ± 4.62	45.00 ± 11.95	35.00 ± 5.34	<0.001
	12	26.25 ± 5.17	55.50 ± 9.25	31.25 ± 9.91	<0.001
	24	26.25 ± 5.17	55.00 ± 7.55	32.50 ± 7.07	<0.001