Table 1.

Baseline sociodemographic characteristics (N = 561)

	Frequency	Proportion
Sex
Male	352	62.7
Female	209	37.3
Age (years)
16–20	116	20.7
21–25	168	29.9
26–30	277	49.4
Mean (sd), Median	24.8 (4.1), 25
Race/Ethnicity
NH Black	305	54.4
NH White	117	20.9
Hispanic	129	23.0
Other	10	1.8
High school graduate
Not applicable (<18 yrs)	15	2.7
No	325	57.9
Yes	221	39.4
Cohabitation
No	408	72.7
Yes	153	27.3
Homeless past 6 months
No	455	81.1
Yes	106	18.9
Resided outside of Chicago a (past 6 months)
Yes	157	28.0
No	404	72.0
Ever injected drugs
Yes	78	14.0
No	481	86.0

^aPrimarily Chicago metropolitan area; 4 lived in other cities in Illinois.