Table 3.
Substance use as a predictor of use of other substances.
| Inhalant | Alcohol | Marijuana | ||||
|---|---|---|---|---|---|---|
| F | OR (95% CI) | F | OR (95% CI) | F | OR (95% CI) | |
| Wave Two | ||||||
| Model | F(9, 4664)=33.26, p<.001 | F(9, 4664)=59.62, p<.001 | F(9, 4664)=56.19, p<.001 | |||
| Nagelkerke Pseudo r2 | .21 | .28 | .32 | |||
| df for Parameter Estimates | 1, 4672 | 1,4672 | 1,4672 | |||
| Inhalant W2 | - | - | 9.87* | 1.90 (1.27, 2.84) | 60.89** | 3.34 (2.47, 4.52) |
| Alcohol W2 | 10.29* | 1.90 (1.28, 2.81) | - | - | 349.83** | 9.23 (7.31, 11.65) |
| Marijuana W2 | 60.90** | 3.51 (2.56, 4.81) | 356.56** | 9.23 (7.33, 11.63) | - | - |
| Cocaine W2 | 84.92** | 6.35 (4.29, 9.41) | .35 | 1.23 (.62, 2.42) | 62.07** | 12.91 (6.83, 24.40) |
| Injectable W2 | 9.33* | 3.46 (1.56, 7.67) | .15 | .80 (.26, 2.49) | 1.74 | 2.41 (.65, 8.94) |
| Wave Three | ||||||
| Model | F(9, 3686)=16.98, p<.001 | F(9, 3697)=46.80, p<.001 | ||||
| Nagelkerke Pseudo r2 | .13 | .23 | ||||
| df for Parameter Estimates | 1, 3694 | 1, 3705 | ||||
| Inhalant W2 | - | - | 1.88 | 1.51 (.84, 2.70) | 32.32** | 3.31 (2.19, 5.00) |
| Alcohol W2 | - | - | - | - | 292.71** | 4.56 (3.83, 5.42) |
| Marijuana W2 | - | - | 76.36** | 6.41 (4.22, 9.72) | - | - |
| Cocaine W2 | - | - | 5.48* | .41 (.19, .87) | 25.09** | 11.10 (4.33, 28.46) |
| Injectable W2 | - | .04 | .84 (.15, 4.65) | 15.39** | 64.83 (8.06, 521.36) | |
**
p < .01,
*
p < .05,
+
p < .10
Note: An intercept, participant age at W1, and dummy variables representing gender, Caucasian race, African-American race, and Latino ethnicity also were included in the model. The full table is available upon request from the first author.