Table 3.
Multiple Logistic Regression Predicting Any Response (1) versus No Response (0) Based on Experimental Condition and Baseline Characteristics
| Model 1 | Model 2 | |
|---|---|---|
| AOR (95% CI) | AOR (95% CI) | |
| Web-push (versus standard MTF) | 1.188 (1.096, 1.287)*** | 0.856 (0.627, 1.166) |
| Follow-up number/age | ||
| 1 (age 19/20) | 0.905 (0.784, 1.046) | 0.682 (0.555, 0.839)*** |
| 2 (age 21/22) | 0.747 (0.649, 0.860)*** | 0.699 (0.573, 0.853)*** |
| 3 (age 23/24) | 0.804 (0.703, 0.918)** | 0.688 (0.568, 0.833)*** |
| 4 (age 25/26) | 0.820 (0.717, 0.938)** | 0.849 (0.703, 1.026) |
| 5 (age 27/28) | 0.900 (0.788, 1.028) | 0.868 (0.719, 1.047) |
| 6 (age 29/30 - reference) | ||
| Male | 0.684 (0.631, 0.743)*** | 0.659 (0.634, 0.800)*** |
| Race/ethnicity | ||
| White (reference) | ||
| Black | 0.506 (0.436, 0.587)*** | 0.496 (0.401, 0.614)*** |
| Hispanic | 0.690 (0.608, 0.783)*** | 0.680 (0.568, 0.813)*** |
| Other | 0.755 (0.666, 0.857)*** | 0.674 (0.560, 0.812)*** |
| Parent some college education | 1.290 (1.170, 1.422)*** | 1.228 (1.069, 1.409)** |
| 4-year college plans (definite) | 1.459 (1.337, 1.593)*** | 1.622 (1.432, 1.835)*** |
| Any lifetime substance use (age 18) | ||
| Alcohol use | 0.819 (0.740, 0.907)*** | 0.865 (0.748, 0.998)* |
| Cigarette use | 0.745 (0.670, 0.828)*** | 0.734 (0.632, 0.851)*** |
| Marijuana use | 0.784 (0.705, 0.872)*** | 0.771 (0.663, 0.897)** |
| Other illicit drug use | 0.948 (0.853, 1.053) | 1.084 (0.935, 1.256) |
| Web-push × Follow-up (joint F-test=4.80***) | ||
| × 1 (age 19/20) | 1.748 (1.309, 2.336)*** | |
| × 2 (age 21/22) | 1.142 (0.861, 1.514) | |
| × 3 (age 23/24) | 1.358 (1.040, 1.775)* | |
| × 4 (age 25/26) | 0.926 (0.708, 1.210) | |
| × 5 (age 27/28) | 1.072 (0.822, 1.397) | |
| Web-push × Male | 1.081 (0.917, 1.273) | |
| Web-push × Race/Ethnicity (joint F-test=0.90) | ||
| × Black | 1.028 (0.762, 1.384) | |
| × Hispanic | 1.021 (0.793, 1.315) | |
| × Other | 1.237 (0.958, 1.595) | |
| Web-push × Parental education | 1.100 (0.904, 1.338) | |
| Web-push × College plans | 0.810 (0.680, 0.966)* | |
| Web-push × Alcohol use | 0.899 (0.733, 1.101) | |
| Web-push × Cigarette use | 1.036 (0.838, 1.282) | |
| Web-push × Marijuana use | 1.026 (0.829, 1.268) | |
| Web-push × Illicit drug use | 0.758 (0.613, 0.937)* |
Note. Weighted n=9,946 (unweighted n=12,005); Model 1 does not include interaction terms.
*
p<0.05;
**
p<0.01;
***
p<0.001; p-values for interaction terms account for multiple testing