Table 1.
Descriptive Statistics
| Boys
|
Girls
|
|||||||
|---|---|---|---|---|---|---|---|---|
| M | SD | Range | Na | M | SD | Range | Na | |
| Initiated alcohol | 0.434 | 0.496 | 0–1 | 525 | 0.423 | 0.494 | 0–1 | 622 |
| Initiated cigarettes | 0.238 | 0.426 | 0–1 | 665 | 0.174 | 0.379 | 0–1 | 764 |
| Initiated marijuana | 0.181 | 0.389 | 0–1 | 695 | 0.122 | 0.327 | 0–1 | 778 |
| Initiated inhalants | 0.170 | 0.376 | 0–1 | 659 | 0.198 | 0.400 | 0–1 | 727 |
| Linguistic acculturation | ||||||||
| Language use with family | 2.936 | 1.229 | 1–5 | 695 | 2.847 | 1.179 | 1–5 | 778 |
| Language use with friends | 3.851 | 1.134 | 1–5 | 695 | 3.690 | 1.105 | 1–5 | 778 |
| Language use in media | 3.910 | 1.120 | 1–5 | 695 | 3.575 | 1.062 | 1–5 | 778 |
| Control variables | ||||||||
| Free or reduced lunch | 0.919 | 0.273 | 0–1 | 695 | 0.941 | 0.236 | 0–1 | 778 |
| Usual grades | 6.674 | 1.900 | 1–9 | 695 | 7.135 | 1.673 | 1–9 | 778 |
| Prevention program | 0.699 | 0.459 | 0–1 | 695 | 0.704 | 0.456 | 0–1 | 778 |
a
Ns for substance use initiation variables are the number of cases at baseline that had never used the particular substance. Ns for other variables reflect the largest number of cases used in analyses predicting initiation of the four substances. Means and standard deviations for linguistic acculturation and control variables are weighted averages from the separate samples of baseline nonusers of alcohol, cigarettes, marijuana and inhalants.