Table 2.
Variable | Alcohol
|
Marijuana
|
||||||
---|---|---|---|---|---|---|---|---|
OR | 95% CI | OR | 95% CI | |||||
Older sibling use | ||||||||
Model A | 1.61 | 1.00 | 2.62 | # | ||||
Model B | 1.02 | 0.60 | 1.72 | |||||
Adult use | ||||||||
Model A | 1.57 | 1.04 | 2.39 | * | 2.26 | 1.05 | 4.86 | * |
Model B | 1.25 | 0.81 | 1.92 | 2.07 | 0.98 | 4.36 | # | |
| ||||||||
beta | 95% CI | beta | 95% CI | |||||
| ||||||||
Normative beliefs | ||||||||
Model A | 12.55 | 7.68 | 17.42 | ‡ | 2.37 | −6.07 | 10.81 | |
Model B | 2.81 | 0.67 | 4.94 | † | 2.35 | −0.51 | 5.21 | |
Negative consequences | ||||||||
Model A | 0.35 | 0.22 | 0.48 | ‡ | 0.48 | 0.21 | 0.76 | ‡ |
Model B | 0.24 | 0.12 | 0.36 | ‡ | 0.37 | 0.15 | 0.60 | † |
With kids that use | ||||||||
Model A | 0.17 | 0.11 | 0.23 | ‡ | 0.20 | 0.06 | 0.33 | † |
Model B | 0.03 | 0.01 | 0.05 | ‡ | 0.03 | 0.01 | 0.05 | † |
Positive expectancies | ||||||||
Model A | 0.54 | 0.37 | 0.71 | ‡ | 0.65 | 0.38 | 0.91 | ‡ |
Model B | 0.35 | 0.24 | 0.46 | ‡ | 0.35 | 0.20 | 0.51 | ‡ |
Resistance self-efficacy | ||||||||
Model A | −0.79 | −0.95 | −0.63 | ‡ | −0.87 | −1.14 | −0.67 | ‡ |
Model B | −0.40 | −0.49 | −0.31 | ‡ | −0.37 | −0.47 | −0.26 | ‡ |
Note. Model A adjusts for CHOICE group membership (intervention vs. control) and demographics (gender, father’s education), whereas Model B additionally adjusts for any past month use. Odds ratios are reported for older sibling and important adult use; otherwise, unstandardized regression coefficients are reported. Multivariable analyses were conducted only if bivariate associations were significant at p < .10.
p < .10.
p < .05.
p < .01.
p < .001.