Alcohol use among adolescents, aggressive behaviour, and internalizing problems

•Alcohol use associated with a lack of problems in social relationships.•Alcohol use associated with aggressive behaviour.•Alcohol use did not associate with internalizing problems.

Alcohol use is common among adolescents, but its association with behavioural and emotional problems is not well understood. This study aimed to investigate how self-reported psychosocial problems were associated with the use of alcohol in a community sample consisting of 4074 Finnish adolescents aged 13–18 years. Aggressive behaviour associated with alcohol use and a high level of alcohol consumption, while internalizing problems did not associate with alcohol use. Having problems in social relationships associated with abstinence and lower alcohol consumption. Tobacco smoking, early menarche and attention problems also associated with alcohol use.