It is important to reduce drinking during late adolescence in order to avoid the long-term adverse consequences of drinking.
The research was conducted by Jim McCambridge from the London School of Hygiene and Tropical Medicine, London, UK, and colleagues.
Although there is an urgent need for better studies in this area, research to date provides some evidence that high alcohol consumption in late adolescence often continues into adulthood and is associated with long-term alcohol problems, including dependence.
The authors of the current study conducted a comprehensive literature review to identify 54 relevant studies which included at least one quantitative measure of the effects of alcohol, on outcomes in adulthood such as death, alcohol dependence, criminal offences, mental health, educational attainment, and smoking. The majority of these studies were multiple reports from ten cohorts, half of which were from the US.
The authors found that although there is consistent evidence that higher alcohol consumption in late adolescence continues into adulthood and is associated with alcohol and other problems, most of these studies could not strongly support direct causality because of their weak designs. Furthermore, although a number of studies suggested links with late adolescent drinking to adult physical and mental health and social consequences, this evidence is generally of poorer quality and insufficient to infer causality.
According to the authors: "It is clear that the evidence base on long-term consequences is not as extensive nor as compelling as it could be."
Despite this limitation, they are able to say: "late adolescent alcohol consumption appears a probable cause of increased drinking well into adulthood, through to ages at which adult social roles have been achieved."
The systematic review of current evidence has been published in PloS.