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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: Addiction. 2014 Mar 10;109(7):1091–1098. doi: 10.1111/add.12502

Table 1.

Participant baseline characteristics (N=359)

In-Person
(N=179)
Computer BI
(N= 180)

Background Characteristics
Female gender, % (n) 45.80 (82) 46.10 (83)
White race, % (n) 89.9 (161) 90.00 (162)
Hispanic Ethnicity, % (n) 47.49 (85) 46.11 (83)
Age, mean (SD) [range 18–85] 35.69 (14.57) 36.54 (14.73)
Currently Married, % (n) 22.35 (40) 22.22 (40)
Not employed, % (n) 57.54 (103) 59.44 (107)
Employed Part Time, % (n) 20.11 (36) 19.44 (35)
Employed Full Time, % (n) 22.35 (40) 21.11 (38)
≥ High school education, % (n) 78.21 (140) 77.22 (139)
CUE score, mean (SD) [range 6–30] 20.64 (5.85) 21.11 (5.76)
Baseline ASSIST Scores, mean (SD)
Global ASSSIT score 30.00 (14.77) 33.11 (19.85)
Alcohol score 8.07 (6.75) 7.38 (6.81)
Marijuana score 9.91 (5.94) 9.76 (6.31)
Cocaine score 2.32 (5.32) 2.49 (5.33)
Amphetamines score 1.13 (3.42) 1.96 (4.95)
Sedatives score 1.29 (3.70) 1.84 (4.71)
Opioids score 2.17 (5.02) 3.28 (6.61)
Positive Hair Tests (% positive)
Marijuana (N=306) 49.67 (75) 43.87 (68)
Cocaine (N=314) 20.65 (32) 18.87 (30)
(Meth)Amphetamines (N=314) 7.10 (11) 8.81 (14)
Opioids (N= 311) 2.60 (4) 2.55 (4)

Notes: Groups do not differ at baseline for any of the variables above (p>.05, two-tailed) using independent samples t tests (continuous variables) and χ2 tests of independence (categorical variables). N=359, except as noted for hair testing.