Silins E, et al. - Researchers evaluated how strong the connection is between different patterns of adolescent drinking and longer-term psychosocial harms, accounting for individual, family and peer factors. Study participants were between the ages of 13 and 30 years (from 1991 to 2012) and they were evaluated on multiple occasions. The findings from the present study suggested that frequency of adolescent drinking predicted substance use problems in adulthood as much as heavy episodic and problem drinking independent of individual, family and peer predictors of those outcomes, or perhaps even moreso.