TABLE 2.

Baseline Characteristics of the Injection Drug Users, by Intervention Group: Raleigh–Durham, North Carolina, July 2003 Through January 2006

Background characteristics	Total (N = 625)	EducationalIntervention	MotivationalIntervention	P
Age, y, mean (SD)	41.2 (9.3)	41.1 (8.9)	41.3 (9.7)	.78
Race/ethnicity, %				.97
African American	66.4	66.6	66.2
Non-Hispanic White	26.8	26.4	27.2
Other	6.8	7.0	6.6
Men, %	72.9	70.2	76.0	.11
High school graduate, %	69.2	71.1	66.9	.26
Unemployed, %	69.9	67.3	72.8	.14
Married or living as married, %	20.3	21.0	19.5	.66
Currently homeless, %	34.8	33.9	35.8	.63
Ever in substance abuse treatment (lifetime), %	67.1	65.0	69.5	.24
Ever in prison (lifetime), %	57.0	58.4	55.5	.47
HIV positive, %	8.9	7.6	10.3	.24
HCV positive, %	54.8	55.3	54.2	.78
Alcohol and drug use (previous 30 days)
Used alcohol, %	70.4	66.9	74.5	.04
No. of days drank alcohol, mean (SD)	11.9 (11.8)	11.0 (11.9)	13.0 (11.7)	.04
No. of drinks per day when drinking, mean (SD)	4.1 (4.9)	3.6 (4.4)	4.7 (5.4)	.004
Used crack, %	72.5	73.0	72.0	.79
Used powder cocaine, %	64.8	63.3	66.4	.42
Heroin, %	69.6	68.5	70.9	.53
Speedball (heroin and cocaine in combination), %	58.4
Methamphetamine, %	12.1	10.5	140	.18
Injection risk behaviors
Ever shared a syringe (lifetime), %	47.5	45.8	49.3	.39
Shared a syringe, previous 30 days, %	17.0	16.0	18.2	.47
Shared cooker, cotton, or rinse water, previous 30 days, %	23.2	22.5	24.1	.63
Used a new syringe at last injection, %	87.1	86.2	88.1	.47
Sexual behavior previous 30 days
>1 sexual partner, %	26.5	27.0	26.0	.77
Gave money or drugs for sex previous 30 days, %	24.0	23.5	24.6	.73
Traded sex for money or drugs previous 30 days, %	15.8	16.7	14.8	.52
Unprotected at last sexual intercourse, %	57.4	56.1	58.8	.52