Table 1.
Sample Characteristics and Unadjusted Association with Binge Drinking in Previous Month**
| Exogenous Variables | n or median* | (%) or IQR* | Binge Drinking (% or correlation*) | P |
|---|---|---|---|---|
| Age | p<0.0001 | |||
| 15 | 21 | 1% | 19% | |
| 16 | 256 | 15% | 20% | |
| 17 | 320 | 19% | 28% | |
| 18 | 416 | 24% | 33% | |
| 19 | 440 | 25% | 36% | |
| 20 | 281 | 16% | 42% | |
| Gender | p<0.0001 | |||
| Male | 882 | 51% | 39% | |
| Female | 852 | 49% | 25% | |
| Socioeconomic Status | 0.3* | −0.5,0.8* | 0.10* | p=0.003 |
| Depression | p=0.46 | |||
| None | 852 | 49% | 31% | |
| One positive | 437 | 25% | 32% | |
| Two positives | 445 | 26% | 34% | |
| Sensation Seeking | 15* | 13, 17* | 0.28* | p<0.0001 |
| Self-esteem | 17* | 16, 19* | 0.03* | p=0.258 |
| Peer Drinking | p<0.0001 | |||
| None | 40 | 2% | 3% | |
| A Few | 431 | 25% | 10% | |
| More Than A Few | 451 | 26% | 24% | |
| Most | 812 | 47% | 50% | |
| Video Game Time | p=0.610 | |||
| No | 884 | 51% | 32% | |
| Yes | 850 | 49% | 33% | |
| Marketing Exposure | ||||
|
| ||||
| Owns ABM | p<0.0001 | |||
| No | 1,162 | 67% | 25% | |
| Yes | 571 | 33% | 46% | |
| Favorite Alcohol Ad | p=0.001 | |||
| No | 1,418 | 82% | 30% | |
| Yes | 314 | 18% | 40% | |
| Movie alcohol brand exposure | 139 | 81, 217 | 0.08* | p=0.001 |
| Internet time | p=0.37 | |||
| No Time | 108 | 6% | 35% | |
| Less Than 1 Hour | 347 | 20% | 34% | |
| 1 to 2 Hours | 727 | 42% | 33% | |
| 3 to 4 Hours | 345 | 20% | 31% | |
| More Than 4 hours | 206 | 12% | 26% | |
| TV time | p=0.020 | |||
| None | 92 | 5% | 34% | |
| Less Than 1 Hour | 215 | 12% | 41% | |
| 1 to 2 Hours | 735 | 42% | 33% | |
| 3 to 4 Hours | 440 | 25% | 30% | |
| More Than 4 hours | 251 | 15% | 27% | |
| Cognitions | ||||
|
| ||||
| Drinker Identity | 4 | 3, 6 | 0.47* | p<0.0001 |
| Favorite Alcohol Brand | p<0.0001 | |||
| No | 1,181 | 68% | 11% | |
| Yes | 553 | 32% | 42% | |
| Alcohol Expectancies | 22 | 19, 24 | 0.36* | p<0.0001 |
| Alcohol Norms (Friends have been drunk) | ||||
| None | 8 | 0.50% | 0% | p<0.0001 |
| A few | 95 | 6% | 8% | |
| Some | 220 | 13% | 16% | |
| Most | 875 | 51% | 31% | |
| Almost All | 536 | 31% | 45% | |
| Outcome | ||||
|
| ||||
| Last Month Binge Drinking | ||||
| None | 1,177 | 68% | ||
| Once | 190 | 11% | ||
| 2 to 3 times | 172 | 10% | ||
| 4 to 5 times | 79 | 5% | ||
| 5+ times | 114 | 7% | ||
*
indicates a continuous variable; n, proportions and chi-square used for categorical variables; median, interquartile range, and correlation used for continuous variables.
**
The sample description includes the population of 1734 ever-drinkers included in the analyses
Bolded values: p<0.05