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. 2017 Jan 23;84(2):150–158. doi: 10.1016/j.bjorl.2016.12.004

Table 2.

Mean and p-value of absolute latencies (in ms) of waves I–IV of BAEP for the Group Effect.

Group Effect (n = 30)	Waves (ms)
	I		II		III		IV
	Exposure		Exposure		Exposure		Exposure
	Pre	Post	Pre	Post	Pre	Post	Pre	Post
Control	1.388	1.236	2.566	2.109	3.418	2.882	4.895	4.128
100 mg/L Pb	1.292	1.167	2.278	2.079	3.101	2.888	4.594	4.091
100 mg/L Pb + FeSO₄	1.231	1.230	2.328	2.038	3.067	2.753	4.490	3.850
400 mg/L Pb	1.324	1.197	2.345	2.106	3.181	2.827	4.582	3.987
400 mg/L Pb + FeSO₄	1.378	1.110	2.539	2.007	3.340	2.692	4.753	3.854
FeSO₄	1.270	1.195	2.451	2.118	3.152	2.844	4.822	4.017
p	0.237	0.397	0.066	0.468	0.030^a	0.189	0.175	0.125

Pre, Pre-exposure to Pb; Post, Post-exposure to Pb; ms, milliseconds.

^a

p obtained from the comparison of the groups at each time (pre and post-exposure to Pb).