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. Author manuscript; available in PMC: 2011 Dec 1.
Published in final edited form as: Prev Sci. 2010 Dec;11(4):411–423. doi: 10.1007/s11121-010-0178-1

Table 3.

Observed Eighth-grade Substance Use and Delinquency by Intervention Condition and Targeted Risk at Baseline

Not High Risk High Risk Interactiona



CTC Control AORa [95% CI] CTC Control AORa [95% CI] T-value p-value
Grade 8 Substance Use
Past 30-day Use
 Alcohol 14.3% 19.3% 0.79 [0.63-1.00] 28.8% 33.6% 0.92 [0.57-1.49] 0.60 0.56
 Marijuana 3.5% 4.2% 1.04 [0.64-1.69] 11.7% 16.4% 0.73 [0.39-1.38] -0.54 0.60
Past-2-week Use
 Binge Drinking 4.5% 7.3% 0.75 [0.50-1.10] 12.9% 18.7% 0.82 [0.44-1.50] 0.33 0.75
Past 30-day Use
 Cigarettes 4.9% 5.8% 0.98 [0.67-1.44] 12.8% 20.9% 0.61 [0.33-1.12] -1.25 0.24
 Smokeless Tobacco 1.5% 3.3% 0.49 [0.28-0.87] 6.3% 9.8% 0.68 [0.30-1.55] 0.76 0.46
Grade 8 Delinquency
Past Year
 Mean # of Delinquent Acts 0.63 0.96 0.70 [0.60-0.81] 1.67 2.10 0.83 [0.62-1.12] 0.87 0.40
a

Based on GLMMs, adjusted for student age, sex, race/ethnicity, parental education, religious attendance, rebelliousness, student population in the community, and percentage of students in the community receiving free/reduced-price school lunch.

AOR = Adjusted Odds Ratio. CI = Confidence Interval for the adjusted odds ratio. Bolded confidence intervals are statistically significant (p < .05).