Table 1.

Participant demographics.

Demographics	Controls (n = 25)	Cocaine users (n = 18)	t	p
	Mean ± SD	Mean ± SD
Age (years)	33.5 ± 6.0	38.1 ± 6.1	6.0	0.02
Gender (%)			Χ2	p
Male	44.0	61.1	1.22	0.27
Female	56.0	38.9
Ethnicity (%)			Χ2	p
African American	56.0	77.8	2.50	0.29
Caucasian	40.0	22.2
Other	4.0
Affect
BDI	2.4 ± 3.2	14.6 ± 11.3	26.7	<0.001
STAI	24.8 ± 5.0	32.4 ± 12.1	8.1	0.01

BDI, Beck's Depression Inventory; STAI, Spielberger State-Trait Anxiety Index.