Table 1.

Baseline Characteristics by Randomization Group

	Self Administration (n=86)	Clinic Administration (n=46)	p-value
Age	26.0 ± 6.1	26.1 ± 6.3	0.89
Race/Ethnicity			0.78
Hispanic	77 (90)	41 (89)
Non-Hispanic black	5 (6)	4 (9)
Non-Hispanic white	1 (1)	0 (0)
Non-Hispanic other	3 (3)	1 (2)
Education			0.51
Less than high school graduate	27 (31)	17 (37)
High school graduate or greater	59 (69)	29 (63)
Working outside the home	41 (48)	16 (35)	0.15
Current Student	24 (28)	9 (20)	0.29
Household size	4.0 ± 2.0	3.85 ± 1.5	0.68
Dependents	1.20 ± 1.2	1.17 ± 1.3	0.91
Working Medicaid	38 (44)	21 (46)	0.87
Ever had Medicaid	68 (79)	40 (87)	0.26
Current Smoker	7 (8)	6 (13)	0.36
Access to Regular Healthcare Provider	25 (29)	17 (40)	0.35
Ease of Access to Clinic			0.72
Very Easy	33 (38)	14 (30)
Somewhat easy	32 (37)	21 (46)
Somewhat hard	17 (20)	8 (17)
Very hard	4 (5)	3 (6)
Previously given self or other an injection	15 (17)	11 (24)	0.24
Tattoo	28 (33)	20 (43)	0.37
Body Piercing	23 (27)	12 (26)	0.72
Scared of needles	27 (31)	15 (33)	0.76
Marital Status			0.65
Single	61 (71)	37 (80)
Married	15 (17)	7 (15)
Divorced	3 (3)	1 (2)
Separated	6 (7)	1 (2)
Other	1 (1)	0 (0)
Current Partner	71 (83)	42 (91)	0.17
Gravidity	1.93 ± 1.64	2.04 ± 1.7	0.71

Data are n(%) or mean ± standard deviation unless otherwise specified