Drinking, Smoking and Type A Polydrug Behaviours: Psychosocial Factors Among Portuguese University Students

António Ramalho Mostardinha, Anabela Pereira


Aim: This paper aims to describe alcohol, tobacco and type A polydrug consumption among university students. Method: A cross-sectional study was performed. Through a convenience sampling, a total of 338 were included (51.8% male with a mean age of 20.6 years, SD = 3.4). Data was collected using a self-reported questionnaire. The questionnaire was composed by sociodemographic and substance consumption and behaviours variables. Spearman's correlation coefficients were assessed to measure the strength and direction of the association between sociodemographic and substance consumption variables. To evaluate type A polydrug consumption, multivariate logistic regression models were performed. Results: It was observed significant correlations between tobacco consumption with cannabis and alcohol involvement, and coping, conformity, social, enhancement drinking motives. About alcohol consumption, there were observed relations with students’ social environment, and with enhancement, conformity and social drinking motives. Regarding sociodemographic factors on type A polydrug consumption it was verified that students who have parents and friends who smoke are more likely to polydrug. Conclusion: Findings suggest that interventions focused on substance consumption may need to address descriptive and injunctive norms, drinking motives and social environment as part of the student’s consumption behaviours.


alcohol consumption; cigarette smoking; polydrug consumption; consumption behaviours; substance abuse; university students