Table 1.
Descriptive Statistics and Bivariate Correlations Between Variables
| Variables | N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||||
| 1. Age T1 | 2836 | -- | |||||||||
| 2. Sex | 2836 | .01 | -- | ||||||||
| 3. PC1 | 2836 | .03 | −.01 | -- | |||||||
| 4. PC2 | 2836 | .04* | −.03 | .44** | -- | ||||||
| 5. PC3 | 2836 | .04* | −.01 | .11** | .45** | -- | |||||
| 6. alc-GPS | 2836 | .03 | .03 | .07** | .07** | .05* | -- | ||||
| 7. Sensation Seeking T1 | 2606 | −.37** | .38** | .03 | −.01 | −.01 | .07** | -- | |||
| 8. Family support T2 | 2587 | .04 | −.14** | −.00 | −.03 | .01 | −.05* | −.13** | -- | ||
| 9. Friend Support T2 | 2589 | −.11** | −.29** | −.02 | −.03 | .01 | −.03 | −.05* | .44** | ||
| 10. Alcohol Use T2 | 2835 | −.08** | .23** | .05** | .03 | −.01 | .10** | .19** | −.14** | −.18** | -- |
|
| |||||||||||
| M | 35.65 | .44a | −.01 | .00 | .00 | .01 | 16.14 | 3.02 | 3.02 | 8.49 | |
| SD | 10.78 | -- | 1.02 | 1.01 | 1.03 | 1.01 | 7.26 | .67 | .59 | 19.38 | |
Note. Alc-GPS = alcohol consumption genome-wide polygenic scores. Sex was coded 1 = male, 0 = female.
a
percentage of male participants. PC1-PC3 = the first three genetic ancestry principal components. T1 = Time 1. T2 = Time 2.
*
p < .05
**
p < .01.