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. Author manuscript; available in PMC: 2022 May 13.
Published in final edited form as: J Subst Abuse Treat. 2020 Jun 6;116:108055. doi: 10.1016/j.jsat.2020.108055

Table 5.

Adolescent self-report of past 3 month alcohol use, heavy drinking, marijuana use, and other drug use days by treatment condition.

Variable Baseline
3 month follow-up
6 month follow-up
1 year follow-up
EXP
TAU
EXP
TAU
EXP
TAU
EXP
TAU
n % n % n % n % n % n % n % n %

ADQ - alcohol use days
Did not drink in past 3 months 26 42.62% 13 26.53% 26 49.06% 12 34.29% 32 65.31% 23 57.50% 30 54.55% 19 51.35%
Less than monthly 11 18.03% 14 28.57%   6 11.32%   7 20.00%   7 14.29%   5 12.50%   8 14.55% 10 27.03%
Monthly 11 18.03%   3 6.12%   5 9.43%   2 5.71%   3 6.12%   4 10.00%   3 5.45%   2 5.41%
Less than once per week, more than once per month   4 6.56%   7 14.29%   6 11.32%   4 11.43%   5 10.20%   4 10.00%   9 16.36%   4 10.81%
Weekly   2 3.28%   5 10.20%   3 5.66%   4 11.43%   0 0.00%   1 2.50%   4 7.27%   1 2.70%
2–3 days per week   5 8.20%   6 12.24%   5 9.43%   4 11.43%   2 4.08%   3 7.50%   1 1.82%   1 2.70%
4–6 days per week   0 0.00%   0 0.00%   1 1.89%   2 5.71%   0 0.00%   0 0.00%   0 0.00%   0 0.00%
Every day   2 3.28%   1 2.04%   1 1.89%   0 0.00%   0 0.00%   0 0.00%   0 0.00%   0 0.00%
ADQ - any heavy drinking days
Yes 29 47.52% 25 51.02% 16 30.77% 16 45.71% 13 26.53% 14 35.00% 19 35.19% 12 32.43%
DUQ – any other drug use days
Yes 17 28.33% 17 34.69%   9 16.98%   7 20.00%   2 4.35%   5 13.16%   7 13.73%   5 13.51%

EXP
TAU
EXP
TAU
EXP
TAU
EXP
TAU
n M (SD) n M (SD) n M (SD) n M (SD) n M (SD) n M (SD) n M (SD) n M (SD)

DUQ - marijuana use # of days 61 37.39 (35.11) 49 35.08 (30.96) 54 27.17 (32.48) 35 33.34 (32.85) 49 24.57 (31.10) 40 39.50 (35.19) 55 36.55 (37.81) 37 42.57 (36.40)

EXP: experimental treatment condition; TAU: treatment-as-usual condition; ADQ = Adolescent Drinking Questionnaire; DUQ = Drug Use Questionnaire. M = unadjusted mean; SD = standard deviation.