Table 1.
Descriptive Statistics of Youth by Peer-Drinking Status.
| Variable | (1) Have Friends Who Drink (n = 631) | (2) No Drinking Friends (n = 283) | p-Value a | ||
|---|---|---|---|---|---|
| Mean (%) | Standard Deviation | Mean (%) | Standard Deviation | ||
| Youth | |||||
| Number of drinks consumed in the past 30 days | 2.27 | 7.90 | 0.07 | 0.29 | <0.001 |
| Male | 50% | -- | 54% | -- | 0.178 |
| Age | 14.79 | 1.47 | 13.49 | 1.05 | <0.001 |
| Family Context | |||||
| Monthly income (unit: 100 Chilean pesos) | 3.19 | 1.60 | 2.98 | 1.45 | 0.056 |
| Less than middle school | 6% | -- | 6% | -- | 0.932 |
| Middle school to less than high school | 35% | -- | 43% | -- | 0.013 |
| High school | 56% | -- | 47% | -- | 0.016 |
| Some college or more | 4% | -- | 4% | -- | 0.933 |
| Married | 65% | -- | 70% | -- | 0.094 |
| Number of drinks consumed in the past 30 days | 16.46 | 44.51 | 15.20 | 39.23 | 0.680 |
| Social Context | |||||
| Neighborhood danger and drugs | 3.11 | 1.07 | 2.77 | 1.12 | <0.001 |
| Advertisement on newspapers/magazines (low exposure) | 23% | -- | 35% | -- | <0.001 |
| Advertisement on newspapers/magazines (moderate exposure) | 39% | -- | 35% | -- | 0.226 |
| Advertisement on newspapers/magazines (high exposure) | 39% | -- | 30% | -- | 0.016 |
| Advertisement on television (low exposure) | 18% | -- | 28% | -- | 0.001 |
| Advertisement on newspapers/magazines (low exposure) | 32% | -- | 31% | -- | 0.894 |
| Advertisement on newspapers/magazines (moderate exposure) | 50% | -- | 41% | -- | 0.007 |
a p-value of t-test for continuous variables and chi-square test for categorical variables.