Delineating trajectories of alcohol consumption and alcohol problems from adolescence to young adulthood: An integrated assessment of genetic, familial, and psychosocial factors

Findings from this study indicate that genetic, familial, and personality traits related to externalization were associated with the initial level of drinking or drinking-related problems, whereas fewer variables were associated with the change in drinking or drinking-related problems over time. These findings suggest that these variables can be used to identify high-risk individuals for drinking problems early on, and it is necessary to consider age or developmental stage in alcohol research.