Tobacco use and friendship networks: a cross-sectional study among Brazilian adolescents

• Autor(a) principal: Jorge,Kelly Oliva
• Data de Publicação: 2015
• Outros Autores: Cota,Luís Otavio, Ferreira,Efigênia Ferreira e, Vale,Miriam Pimenta do, Kawachi,Ichiro, Zarzar,Patrícia Maria
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Ciência & Saúde Coletiva (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-81232015000501415
• topic: Tobacco; Friendship; Adolescent; Epidemiology

Aim: To determine the prevalence of tobacco use and its association with types of friendship networks, socioeconomic status and gender among Brazilian adolescents.Methods: A cross-sectional study was carried out with a representative sample of 905 students aged 15 to 19 years. Information on social networks and tobacco use was collected by the self-administered questionnaire 'Alcohol, Smoking and Substance Involvement Screening Test" and the question "What is your most important group of close friends?'. Socioeconomic status was assessed using an area-based social vulnerability index and type of school. Multinomial logistic regression analysis was employed to test associations between tobacco use and the independent variables.Results: The overall prevalence of tobacco use was 18.9%. Female adolescents had 3.80-fold greater odds of reporting weekly to daily tobacco use compared to male adolescents. Participants who reported that their most important groups of close friends were from church had a lower risk of reporting weekly to daily tobacco use in comparison to those who reported that their best friends were from school.Conclusions: The prevalence of tobacco use was high and was associated with school-based (as compared to church-based) friendship networks, female gender and higher area-level socioeconomic status.