Correlates of binge drinking among Brazilian adolescents

Adolescence is a vulnerable period for risk-taking tendencies, including binge drinking. The aim of this study was to examined the prevalence of binge drinking and its association with factors related to the consumption of alcoholic beverages by best friend, familial factors, socioeconomic status and religiosity. A Census of 633 students from public and private schools in Diamantina-MG was conducted. Participants completed a self-administered questionnaire, the Alcohol Use Disorders Identification Test-C (AUDIT-C) and, another on the consumption of alcohol by family and friends. Surveys inquiring about socioeconomic conditions were sent to parents/guardians. Descriptive and bivariate analyzes were performed (p < 0.05). The log-binomial model was used to calculate PR and 95% CI. The prevalence of binge drinking was 23.1%. The average age of onset of alcohol consumption was 10,8 years. Binge drinking was more prevalent among adolescents whose best friend [OR = 4.72 (95% CI 2.78-8.03)] and brother [PR = 1.46 (95% CI 1.10-1.92)] drink alcohol. Religiosity [PR = 0.40 (95% CI 0.27-0.62)] appeared as a possible protective factor. Our findings indicate that peer effects are important determinants of drinking and could be utilized as a potential target for interventions to reduce alcohol consumption rates.