Original article
Mechanisms and Frequency of Violent Injuries Among Victims and Perpetrators of Bullying

https://doi.org/10.1016/j.jadohealth.2018.10.295Get rights and content

Abstract

Purpose

This article aims to (1) evaluate whether bullying typology predicts violent injury; (2) longitudinally examine whether violent injury trajectories differ across bullying typology as children age; and (3) longitudinally determine whether children who consistently reported perpetration or victimization (i.e., reported bullying at fifth, seventh, and 10th grade) were different from children who inconsistently reported perpetration or victimization.

Methods

Longitudinal data were obtained from 4,297 children at three waves (fifth, seventh, and 10th grade) in three United States communities. Children were categorized into four mutually exclusive bullying typologies: neither victim nor perpetrator; victim only; perpetrator only; victim-perpetrator. Children self-reported mechanisms of violent injuries that needed medical attention in the past year. Regression models were used to evaluate the relationship between bullying group and the likelihood of violent injury over time.

Results

Seventeen percent (n=857) of children in fifth grade reported a violent injury. Prevalence of overall violent injuries, and specifically firearm and knife injuries, increased over time. Children who reported perpetration in the absence of victimization were at increased odds for violent injury (adjusted odds ratio = 1.41, 95% confidence interval: 1.24, 1.60) compared with children who reported neither victimization nor perpetration, while children who reported victimization in the absence of perpetration were at decreased odds (adjusted odds ratio=.84, 95% confidence interval: .73, .97). A significant linear dose-response relationship was observed between duration of bullying perpetration and violent injury.

Conclusions

The relationship between bullying perpetration and violent injury over time was strong. Future research should investigate potential mediating behaviors, such as weapon access, which might explain the observed relationship.

Section snippets

Study population

Data were obtained from Healthy Passages, a cohort study of children and their primary caregivers followed up from fifth through 10th grade in three U.S. communities. The initial sampling frame for this study included fifth grade students at public schools in districts in and around Birmingham, Alabama, Houston, and Los Angeles County; the study population represented over 99% of students in regular public school classrooms in the study districts. A more detailed description of the Healthy

Results

A description of the sample at baseline is shown in Table 1. The average participant was 11.1 (standard deviation=.6) years at baseline, and slightly fewer than half of the children (49.3%) were boys. In fifth grade, 30.0% of children were victims of bullying only, while 5.5% were bully perpetrators only, and 16.0% were victim-perpetrators. In seventh grade, 12% of children were victims of bullying only, 15% were bully perpetrators only, and 13% were victim-perpetrators. In 10th grade, 10% of

Discussion

This article used longitudinal data from a multisite study of children to expand our knowledge about the relationship between bullying perpetration and victimization typology and violent injuries requiring medical attention. Results from this study suggest that violent injuries emerge at a very young age; 17% of fifth graders reported a firearm-, knife-, or assault-related injury needing medical attention in their lifetime. Violent injuries proceeded to significantly increase over time, with

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    Conflicts of interest: The authors have no conflicts of interest to disclose.

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