Evidence map›Paper›PMID 39815305›Full record

ArticleBMC public health2025

Bullying in adolescents across three years in the context of the COVID-19 pandemic: a repeated cross-sectional and prospective analysis.

Bruno Nunes de Oliveira, Marcus Vinicius Veber Lopes, Bruno Gonçalves Galdino da Costa, Gabrielli Thais de Mello, Gabriel Pereira Maciel, Kelly Samara Silva

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Article in BMC public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Bruno Nunes de OliveiraDepartment of Physical Education, Federal University of Santa Catarina, Florianópolis, Brazil. brunonunes05@gmail.com.
Marcus Vinicius Veber LopesHealthy Active Living and Obesity Research Group, Children's Hospital of Eastern Ontario Research Institute, Ottawa, Canada.
Bruno Gonçalves Galdino da CostaDepartment of Kinesiology and Physical Education, McGill University, Montreal, Canada.
Gabrielli Thais de MelloInstitute for Advancing Health Through Agriculture, Texas A&M AgriLife Research, Dallas, USA.
Gabriel Pereira MacielDepartment of Physical Education, Federal University of Santa Catarina, Florianópolis, Brazil.
Kelly Samara SilvaDepartment of Physical Education, Federal University of Santa Catarina, Florianópolis, Brazil.

Funding

Brazilian National Council for Scientific and Technological Development - CNPQ 406258/2018-0
6 · The paper itself

Abstract

backgroundBullying has been identified as a risk factor for many issues among adolescents. Although it was already considered a public health issue in Brazil before the COVID-19 pandemic, little is known about how the pandemic and associated public health measures have affected bullying behavior.

objectiveTo explore changes in bullying victimization and perpetration among Brazilian high school students from 2019 to 2022.

methodsThis study utilizes data from the Longitudinal Study of Adolescent Lifestyle (ELEVA), employing a repeated cross-sectional with a nested cohort design. Adolescents (n = 1.987, 50.2% female, mean age 16.4 years) answered a questionnaire and bullying-related information were extracted from two different questions for victims and perpetrators. Multilevel logistic regression models were used.

resultsBullying victimization decreased from 46% (95% CI: 40-52%) in 2019 to 30% (95% CI: 24-36%) in 2022 (OR: 0.46, 95% CI: 0.30-0.69, p < 0.05) in the longitudinal sample. Stable prevalences of bullying victimization (44% in 2019, 40% in 2022, p = 0.090) and perpetration (9.7% in 2019. 8.7% in 2022, p = 0.5) were observed within the repeated cross-sectional sample.

conclusionThis study found a significant decrease in bullying victimization among Brazilian high school students from 2019 to 2022 in the longitudinal sample, which coincides with the decrease in bullying behavior associated with getting older. However, the prevalence of bullying victimization and perpetration remained relatively stable and high in the repeated cross-sectional sample. These findings highlight the need for effective policies and interventions to prevent bullying among high school students. Additionally, providing resources and support for students experiencing bullying could be beneficial.

Indexed as

BullyingCOVID-19Crime VictimsStudentsAdolescentAdolescent BehaviorBrazilCross-Sectional StudiesFemaleHumansLongitudinal StudiesMalePandemicsProspective StudiesSurveys and QuestionnairesBullying perpetrationBullying victimizationLongitudinal studiesPandemicSchools

Identifiers

PMID39815305
PMCPMC11734234

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.