Table 3

Comparison of absolute latencies of waves (ms) of BAEP of left ear between drug abusers (n=58) and controls (n=30).

Wave	Cases		Controls		t-value	p-value
Wave	Mean	SD	Mean	SD	t-value	p-value
I	1.40	0.15	1.36	0.20	3.35	0.001^*
II	2.78	0.22	2.60	0.10	4.23	0.0001^**
III	3.68	0.22	3.48	0.3	3.48	0.0008^**
V	5.34	0.26	5.19	0.4	2.07	0.04^*