This study has several limitations. First, information on alcohol consumption did not contain specific information on drinking patterns such as solitary drinking and, for that reason, the study design was based on “proxy variables”, such as living arrangement or feelings of isolation that, in a context of restricted social interactions, allowed us to approach this issue. However, interpretation of the results must be done being aware of this limitation. Second, although for those sharing a household, we had information about the household members and their ages, no information about their relationship status was available. However, given the age of our sample, and the very low prevalence of students, we assumed that most of them would be living with partner and/or family.
