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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: J Subst Abuse Treat. 2015 Jul 3;59:20–29. doi: 10.1016/j.jsat.2015.06.016

Table 1.

Baseline demographic, alcohol and drug use across conditions

MI (n=79) TAU (n=72) p-value
Mean (%/SD) Mean (%/SD)
Female 46 (58.2%) 52 (72.2%) 0.10
Age 15.85 (1.06) 15.85 (1.00) 0.99
White 66 (83.5%) 64 (88.9%) 0.36
Hispanic 6 (7.6%) 4 (5.6%) 0.75
Baseline (past 3 months)
Alcohol Use 3.70 (5.55) days 2.3 5(3.49) days 0.08
Marijuana Use 14.9 (10.1) days 14.6 (10.8) days 0.85
Any Substance Use 15.9 (9.73) days 15.7 (10.16) days 0.87