Prevalence and characteristics of peer victimisation in adolescent psychiatric inpatients Abstract. Objective: Repeated and long-lasting victimisation, as defined by bullying, represents a wide spread health hazard. The aim of the present study was to present the prevalence of bullying in adolescent psychiatric inpatients. We analysed relations between bullying and sociodemographic and psychopathological variables. Furthermore, we investigated the number and nature of bullies, feasible resources, and parental perception on bullying in adolescence. Method: In total, 128 adolescent inpatients were surveyed with a bullying questionnaire and youth self-report. In addition, their clinical symptomatology was investigated. Results: Bullying affected one third of our sample. Male and female victims showed significantly more internal problems. Girls in addition revealed more external behaviour problems. Unlike non-suicidal, self-harming behaviour, suicidal ideation and suicidal behaviour occurred significantly more in patients with bullying experience. Conclusion: A significant number of adolescent in our sample experienced bullying and associated psychological strains. This should especially be considered in child and adolescent anamnesis.