Table 2.

Effects of Substance Dependence and Recurrent Major Depressive Disorder on Selected Measures.^††

	Cocaine Dependence			Opioid Dependence			Alcohol Dependence			Major Depressive Disorder
	Never	Former	Current	Never	Former	Current	Never	Former	Current	Negative	Positive
Vibrotactile Threshold in microns [M(SD)]	3.1(5.4)	2.1(3.6)	1.8(1.8)	2.6(4.6)	2.7(4.2)	1.3(1.4)	2.4(4.3)	2.6(4.2)	2.0(2.3)	2.5(3.9)	2.2(4.6)
Equilibrium Score–eyes closed	50.9(11)	49.4(13)	45.9(15)	48.6(13)	50.4(10)	49.3(17)	50.7(12)	47.2(14)	44.2(7)	49.3(12)	49.2(13)
Functional Base of Support	.53(.1)	.52(.1)	.49(.1)	.53(.1)	.52(.1)	.46(.1)	.53(.1)	.51(.1)	.46(.1)	.52(.1)	.51(.1)

^††HIV-1 seropositive subjects only. All effects are not significant at p < 0.05.