TABLE 1.

Demographics of Study Sample, By Risk Group

Characteristic			Risk groups*
	All participants (N = 40) N (%)	Risky injection behavior (exclusively) (n = 5) N (%)	Risky sexual behavior (exclusively) (n = 12) N (%)	Risky injection and sexual behavior (n = 18) N (%)	Neither risky behavior (n = 5) N (%)
Sex
Male	29 (73)	4 (80)	8 (67)	12 (67)	5 (100)
Female	11 (28)	1 (20)	4 (33)	6 (33)	0
Age†	21.6 (18–25)	21.4 (20–24)	21.7 (18–25)	21.7 (18–25)	21.4 (19–25)
Race
White	34 (85)	5 (100)	10 (83)	15 (83)	4 (80)
Black	5 (13)	0	2 (17)	2 (11)	1 (20)
Native American	1 (3)	0	0	1 (6)	0
Hispanic ethnicity	5 (13)	1 (20)	1 (8)	3 (17)	0
Interview site
Los Angeles	20 (50)	3 (60)	7 (58)	7 (39)	3 (60)
New York	20 (50)	2 (40)	5 (42)	11 (61)	2 (40)
Heterosexual/straight	40 (100)	5 (100)	12 (100)	18 (100)	5 (100)
Highest level of education
Less than high school	19 (48)	4 (80)	8 (67)	5 (28)	2 (40)
High school graduate/GED	14 (35)	1 (20)	4 (33)	9 (50)	0
Some college/technical school	7 (18)	0	0	4 (22)	3 (60)
Currently employed	1 (3)	0	1 (8)	0	0
History of mental health care	31 (78)	4 (80)	9 (75)	14 (78)	4 (80)
History of drug treatment program	21 (53)	2 (40)	4 (33)	11 (61)	4 (80)
Currently homeless	26 (63)	5 (100)	10 (83)	9 (50)	2 (40)
Current traveler	25 (69)	5 (100)	3 (33)	13 (77)	4 (80)
History of pregnancy/gotten	22 (55)	1 (20)	6 (55)	12 (67)	3 (60)
someone pregnant
History of incarceration	38 (95)	4 (80)	11 (92)	18 (100)	5 (100)
Ever tested for hepatitis C (HCV)	34 (85)	4 (80)	11 (92)	15 (83)	4 (80)
Ever tested for HIV	39 (98)	5 (100)	12 (100)	18 (100)	4 (80)
HCV positive††	12 (36)	1 (20)	3 (27)	7 (47)	1 (20)
HIV positive††	0	0	0	0	0

^*risk groups are mutually exclusive.

^†years; mean (range).

^††self-reported.