School bullying is defined as repeated and intentional aggression toward the peers who have difficulty to stop or counteract such harassment.1,2 Bullying and victimization have serious negative effects on health and functioning of children.3-5 Detecting and preventing bullying problems early in the schooling process is an opportunity to protect children from long-lasting adverse health consequences.6,7 A comprehensive understanding of school bullying, its prevalence and the associated with it risk factors form the basis of evidence-based prevention programs. Whereas the importance of early preventive efforts has been widely recognized8,9, studies of bullying among young elementary school children remain scarce, as most of research is usually carried out among adolescents. With the help of large, prospective, population- based studies of children from preschool age onwards, we can gain a better understanding of the risk factors associated with bullying. This thesis describes several population-based studies that address bullying involvement in early elementary school, with a specific focus on its assessment, prevalence and early-age predictors.

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Erasmus University Rotterdam
The Generation R study is conducted by Erasmus Medical Center Rotterdam in close collaboration with the Faculty of Social Sciences of the Erasmus University Rotterdam, the Municipal Health Service Rotterdam, and the Stichting Trombosedienst & Artsenlaboratorium Rijnmond (STAR), Rotterdam. We gratefully acknowledge the contribution of children and parents, general practitioners, hospitals, midwifes and pharmacies in Rotterdam. The general design of the Generation R is made possible by the Erasmus Medical Center Rotterdam, the Netherlands Organization for Health Research and Development (ZonMw), the Netherlands Organization for Scientific Research (NWO), the Ministry of Health, Welfare, and Sport, and the Ministry of Youth and Families. The work presented in this thesis was conducted at the Department of Child and Adolescent Psychiatry/Psychology and was supported by a grant from ZonMW (Grant Number: 10.000.1003). Further financial support for the publication of this thesis was provided by the Department of Child and Adolescent Psychiatry/Psychology, the Generation R Study, and the Erasmus University Rotterdam.
Erasmus MC: University Medical Center Rotterdam

Verlinden-Bondaruk, M. (2014, December 2). Population-Based Studies of Bullying in Young Children. Retrieved from http://hdl.handle.net/1765/77215