Table 3.

Comparison of study and control group on distortion product otoacoustic emissions (DPOAEs) testing

Frequency (Hz)	Ear	Study group		Control group		t value
		Mean (dB SPL)	SD	Mean (dB SPL)	SD
357	R	2.41	3.83	4.71	2.91	3.04*
	L	2.68	5.59	9.00	4.45	5.60**
499	R	0.58	6.54	5.18	3.25	4.99**
	L	1.10	5.26	8.15	2.74	7.52**
704	R	0.52	4.80	6.48	3.94	6.07**
	L	1.28	6.48	8.32	2.82	7.53**
1003	R	1.95	5.92	8.35	4.45	5.48**
	L	1.88	3.58	8.12	3.67	7.72**

* p < 0.01, ** p < 0.001