title: Bullying among schoolchildren: differences between victims and aggressors.
abstract: OBJECTIVE
  To identify the factors associated with bullying behaviors among adolescents by analyzing victims, aggressors and victims/aggressors separately.
  
  
  METHODS
  A cross-sectional study was performed in a representative sample of 3,089 secondary school students (13-18 years old) in Barcelona (Spain). To define bullying behaviors, we used three questions about different types of mistreatment (jeering, attacking, marginalizing).
  
  
  RESULTS
  Compared with secondary school students not involved in bullying, victims, aggressors and victims/aggressors were more likely to be boys and to report negative mood states. Victims were younger, were more overweight or obese and were lighter cannabis users, while aggressors were also younger but reported more antisocial behaviors and more cannabis and alcohol use. Victims/aggressors reported more antisocial behaviors and were overweight.
  
  
  CONCLUSIONS
  Being involved in bullying, independently of the role adopted, was associated with health-related problems, which can lead to psychological disorders in adulthood.
authors: Agència de Salut Pública de Barcelona, Barcelona, España. xgarcia@aspb.cat
authors: Xavier
authors: X
authors: Garcia-Continente
authors: Anna
authors: A
authors: Pérez-Giménez
authors: Albert
authors: A
authors: Espelt
authors: Manel
authors: M
authors: Nebot Adell
mesh_terms: D000293:Adolescent; D058445:Bullying; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male
keywords: Acoso escolar; Bullying; Child and adolescent health; Consumo de sustancias; Mental health; Overweight; Salud adolescente; Salud mental; Sobrepeso; Substance use