Table 1.

Participant demographic and drug use characteristics.

Characteristic	MI-enhanced (n = 218)	Control (n = 222)
Gender
Female (n, %)	68 (31.2)	72 (32.4)
Race/Ethnicity (n, %)
African American	61 (30.0)	72 (32.4)
White	76 (34.9)	80 (36.0)
Hispanic	42 (19.3)	39 (17.6)
Other	39 (17.9)	31 (14.0)
Age (Mean, SD)	44.93 (10.2)	45.26 (9.7)
High school education (n, %)	113 (51.8)	133 (59.9)
Homeless in the past 6 months (n, %)	44 (20.2)	39 (17.6)
Unemployment in the past 30 days (n, %)	169 (77.5)	161 (72.5)
History of injection drug use (n, %)	147 (67.4)	138 (62.2)
Years of heroin use (mean, SD)	15.41 (10.8)	14.80 (10.5)
Heroin use past 30 days (mean, SD)	2.73 (6.4)	2.19 (5.5)
Cocaine use past 30 days (mean, SD)	4.74 (9.2)	5.65 (9.7)
Alcohol use past 30 days (mean, SD)	4.68 (8.8)	6.11 (10.2)