Prevalence of bullying and associated factors among Brazilian schoolchildren in 2015

Relationship between bullying with depressive symptoms and health-related quality of life among Brazilian high school students from Southern Brazil

The aim is to analyze the associations of bullying victimization and perpetration with depressive symptoms and health-related quality of life (HRQoL) in a sample of Brazilian high school adolescents. Adolescents (n=852, 50.2% female, mean age: 16.4 years) answered a questionnaire about depressive symptoms drawn from the Center for Epidemiologic Studies Depression Scale. HRQoL was measured using the Kidscreen-10 Index, and bullying-related information was extracted from two different questions (victims and perpetrators). Multilevel logistic regression models were used. Adolescent victims of bullying had higher levels of depressive symptoms and a lower perception of HRQoL than those who were not victims. On the other hand, an inverse relationship was found for perpetrators of bullying compared to those who were not perpetrators. Adolescents' health-related impacts varied according to their role in bullying situations.

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

BACKGROUND

Bullying 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.

OBJECTIVE

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

METHODS

This 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.

RESULTS

Bullying 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.

CONCLUSION

This 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.

Cyberbullying among Brazilian schoolchildren: data from the National Student Health Survey, 2019

This cross-sectional study assessed data from Brazil's 2019 National Student Health Survey to investigate associations between cyberbullying and sociodemographic, family, mental health, and behavioural factors among Brazilian schoolchildren. Multivariate analysis by Poisson regression found 13.2% prevalence of cyberbullying, which was higher among adolescents who felt nobody cared about them (PR=1.47; 1.36-1.59); felt sad (PR=1.5; 1.4-1.7); reported that life was not worth living (PR=1.71; 1.59-1.84); had no friends (PR=1.68; 1.50-1.87); suffered parental aggression (PR=1.54; 1.45-1.65); missed classes without permission (PR=1.13; 1.06-1.20); used tobacco (PR=1.19; 1.10-1.30); alcoholic beverages (PR=1.16; 1.08-1.25); or illicit drugs (PR=1.14; 1.04-1.25); or had sexual intercourse (PR=1.23; 1.14-1.33). Prevalence was lower among boys (PR=0.85; 0.80-0.91); those 16-17 years old (PR=0.88; 0.82-0.95); and who reported having parental supervision in their free time (PR=0.78; 0.73-0.83). Cyberbullying has a high prevalence, highlighting the importance of monitoring this practice and establishing prevention measures in schools.

[Bullying victimization and associated factors among schoolchildren in a city in the south of Brazil]

The objective was to assess the prevalence of bullying victimization and associated factors among adolescents in the city of Pelotas, Rio Grande do Sul. A cross-sectional school-based study was conducted with 795 ninth grade students from 25 urban municipal schools linked to the School Health Program. Bullying was assessed using questions that addressed the occurrence, frequency, location, type of violence suffered and how much it bothers the victims. Gross and adjusted analyses were performed by Poisson regression. Approximately 71% of the students reported having suffered bullying, and school was the location of greatest occurrence (86.7%). Among the types of aggression suffered, "nicknames" was the most recurrent complaint (88.4%), followed by exclusion or isolation (26.6%). Victimization was more frequent among girls (PR 1.13; 95%CI 1.02-1.27), students with non-white skin color/race (PR 1.16; 95%CI 1.05-1.29), who have already tried tobacco (PR 1.14; 95%CI 1.03-1.27), dissatisfied (PR 1.42; 95%CI 1.27-1.58) or indifferent (PR 1.21; 95%CI 1.02-1.43) about their bodies, and who were overweight (PR 1.15; 95%CI 1.04-1.27). The results show that bullying is a frequent practice in the school environment, pointing to the need for educational practices aimed at reducing and preventing this type of violence.

Associations between bullying and risk for eating disorders in adolescents

OBJECTIVES

to analyze the associations between bullying participation profiles (victims, bullies, and bully-victims) and the risk for eating disorders in adolescents.

METHODS

a cross-sectional study was conducted with 491 students, aged 10 to 18 years. Data were collected through the application of the Peer Victimization and Aggression Scale and the Eating Attitudes Test, and were statistically analyzed using analysis of variance (ANOVA) and Spearman correlation.

RESULTS

the risk for eating disorders was higher for the victim profile, both for boys and girls. For both sexes, physical victimization, verbal victimization, and relational victimization were significantly associated with variables related to the risk for eating disorders. For boys, there were also significant associations related to aggression.

CONCLUSIONS

student victims, especially boys, are more vulnerable to the consequences of bullying in relation to the risk for eating disorders.

Bullying as a Risk Factor for Eating Disorder Behaviors Among Students: Secondary Analysis for a Cluster Randomized Controlled Trial

This study aimed to examine whether being a victim of bullying predicted body dissatisfaction and eating disorder behavior (EDB). In this study, we performed secondary analysis from a cluster randomized controlled trial among 5208 eight grade students from 73 public schools in three Brazilian cities. Data were collected in 2019 through an anonymous self-report questionnaire on bullying, body dissatisfaction, and EDB. We used factor analysis, multivariate linear regression, and multinomial logistic regression to verify whether being a victim of bullying during the baseline results in body dissatisfaction and EDB at the nine months follow-up for the control and intervention groups. Our results showed that being female (OR 1.41, 95% CI 1.22-1.63) is a risk factor for dissatisfaction by overweight. Bullying was not a predictor of body dissatisfaction; however, being a victim of bullying (β 0.40, 95% CI 0.35-0.46) is a predictor of having more EDB, independent of the exposure to the program. Therefore, bullying deserves attention in the school environment.

Screen Time Correlates of Bullying Perpetration and Victimization in Brazilian Adolescents

This study is an investigation of the associations of time spent in different screen time activities with bullying among Brazilian adolescents. In this cross-sectional study, adolescents answered questions related to bullying in the past 30 days and reported the weekly volume of screen time spent studying, working, watching videos, playing video games, and using social media applications. Multilevel logistic regression models were used. Our results indicate that higher social media use was associated with higher odds of bullying victimization among males but not females. Excessive use of screen time for work and social media purposes was associated with a higher likelihood of bullying victimization.

Association between adolescents who are victims of bullying and weapon possession

OBJECTIVE

To verify the association between victims of bullying and weapon possession among school adolescents.

METHODS

This cross-sectional study was carried out with 2,296 high school students aged 14-19 years. An instrument containing questions from the validated Youth Risk Behavior Survey questionnaire and the National School Health Survey was used. To describe the profile of interviewees, absolute and relative frequencies were calculated, and the chi-square test was applied to verify the existence of associations. To test the association of bullying with weapon possession, Poisson logistic regression (univariate and multivariate) was used. The significance level used for all analyses was 5%.

RESULTS

Among adolescents interviewed, 23.1% reported being victims of bullying. Among victims of bullying, 37.6% (PR = 1.68; 95% CI = 1.30 - 2.17) reported having already carried some type of weapon (knife, revolver, or truncheon) in the last 30 days, while the reported firearm possession was 38% (PR = 1.67; 95% CI = 1.16 - 2.40) and 47.5% of these adolescents carried some type of weapon (knife, revolver or truncheon) in the school environment (PR = 2.10; 95% CI = 1.50 - 2.93).

CONCLUSIONS

It could be observed that adolescents who are victims of bullying are twice as likely of carrying some type of weapon (knife, revolver, or truncheon) to the school environment, and are also more likely of carrying a firearm.

Impactos do Bullying na Autoestima e Autoimagem

A aparência física é um dos principais aspectos relacionados à vivência de bullying, violência que pode afetar a autoestima dos envolvidos. Com o objetivo de investigar a ocorrência de bullying motivado por aparência física no período da adolescência e seus impactos no bem-estar de estudantes por meio dos níveis de autoimagem e autoestima, 107 estudantes universitários responderam retrospectivamente a um questionário. Do total, 66,4% apontaram ter sofrido vitimização, destacando-se violências do tipo verbal, relacional e sexual. Peso, formato corporal e cabelo foram os aspectos da aparência física relacionados à ocorrência de violência mais relatados, e 35,1% das mulheres apontaram o gênero. Os participantes obtiveram uma média alta para autoimagem e baixa para autoestima, e aqueles que sofreram bullying apresentaram escores estatisticamente inferiores aos daqueles que não sofreram. São necessários trabalhos de prevenção ao bullying sensíveis às questões de gênero.

Intersection of Race and Gender in Self-Reports of Violent Experiences and Polyvictimization by Young Girls in Brazil

OBJECTIVE

To explore racial disparities in self-reports of violent victimization and polyvictimization among young girls in Brazil and to analyze the distribution of prevalence rates across race groups and the estimated odds of exposure.

DESIGN

Data from girls ages 15 and above (N=14,809) from the 2015 edition of PeNSE (National Adolescent School-based Health Survey) were analyzed. Survey weighted proportions and bivariate and multivariate logistic regressions were used to address the objectives.

RESULTS

Independent of the girls' age, socioeconomic status, and region of residence, black, indigenous, mixed, and Asian descendant girls (relative to Whites) were more likely to report past experiences of being bullied, suffering physical violence, forced sexual intercourse, and polyvictimization (reporting all three events). Blacks had the highest rates of reporting being bullied and polyvictimization. Asian descendants had the highest reports of physical violence. Indigenous girls had the highest reports of forced sexual intercourse.

CONCLUSIONS

This study documented disproportionate risks of violent victimization for young women of color among Brazilian students. The risks were significantly greater for those of darker skin tones and from ethnic minorities.

IMPLICATIONS

These findings can inform the development of programs to protect young women from violence in Brazil and highlight the importance of including anti-racism strategies in such programs.

Psychometric validation of the audio-guided rBVQ instrument for bullying evaluation among students

Abstract The revised Olweus Bully/Victim Questionnaire (rBVQ) is an internationally used instrument to identify bullying, but due to Brazilian students’ low proficiency in reading and writing, it had to be adapted for audio-guided use through smartphones. We investigated construct validity, using Confirmatory Factor Analysis (CFA), under a two-correlated factor solution. Participated 1,742 fifth graders and 2,316 seventh graders from 30 public schools in the city of São Paulo. We found excellent fit indices models for both grades (fifth grade: CFI=0.985, RMSEA=0.020; seventh grade: CFI=0.990, RMSEA=0.015), as well as factor loading higher than 0.4 for all items, indicating their relevance to the construct. The rBVQ demonstrated excellent psychometric properties and may help future studies that aim to investigate bullying in populations with similar profiles. In addition, this study innovates by evaluating an audio-guided instrument and using mobile technology.

Knowledge, attitudes, and practices of adolescents regarding human papillomavirus

OBJECTIVE

To analyze knowledge, attitudes, and practices of adolescent students from public schools in the municipality of Teresina, state of Piauí, regarding human papillomavirus (HPV).

METHODS

Cross-sectional, analytical study carried out in 12 public schools in the municipality of Teresina, with a random sample of 472 15-year-old adolescents. All participants answered a validated questionnaire, which evaluated sociodemographic characteristics, level of knowledge about HPV, attitudes regarding vaccination and vaccination status. The levels of knowledge and attitude were classified by standardized scores and practice by the vaccination situation. The analyses were carried out using the SPSS software. In the bivariate analysis, simple logistic regression was used generating odds ratios to identify the associations of sociodemographic characteristics, knowledge, and attitude with HPV prevention practice. Variables that presented p-value ≤ 0.20 in the bivariate analysis were inserted in a multivariate logistic regression model. Statistical significance was set at p < 0.05.

RESULTS

Among the participants, 27.3% had sufficient knowledge, 34.1% had positive attitudes, and 74.6% had adequate practice. In the multivariate analysis, we observed a statistically significant association among females (ORa = 15.62; 95%CI: 9.08–26.9), satisfactory knowledge (ORa = 2.09; 95%CI: 1.15–3.81), and positive attitudes (ORa = 1.89; 95%CI: 1.10–3.23) with proper practice.

CONCLUSIONS

Being female, having a satisfactory level of knowledge about HPV and the vaccine, and having positive attitudes towards HPV vaccination reinforce the appropriate practice of vaccination. These findings demonstrate the need to expand the knowledge of adolescents, generating positive attitudes towards vaccination within an appropriate perspective.

[The influence of family and peer violence in the practice of bullying among school adolescents]

The objective of this study was to estimate the prevalence of bullies and identify factors related to bullying among high school students in Recife. This is an analytical cross-sectional epidemiological study, composed of a probabilistic sample by clusters of 1,402 students aged 15 to 19 years old, enrolled in the second year of high school in both public and private schools in Recife. In this work the bullying will be approached according to the Bioecological Theory of Human Development of Bronfenbrenner. Data were collected by means of a self-administered questionnaire about bullying and associated factors. Data analysis was conducted by the Pearson chi-square test with statistical significance of 0.05 and 95% Confidence Interval. To analyze associations, a multilevel modeling was employed and STATA version 12.0 software was used. The results showed a prevalence of 21.26% of bullying aggressors and the factors associated with the practice of bullying were violence suffered at school, violence between peers, as well as violence practiced by the mother and siblings. Hence, the results indicate that the violence suffered in the family and school context can have repercussions on the practice of bullying among adolescents.

Narratives of bullying and emersion of self-compassion expressions in adolescents

Abstract This study aimed to investigate the narratives of bullying and the expression of self-compassion in statements written by adolescents as a possible coping strategy. Participated 162 adolescents from a state in northern Brazil. The data collected in written testimonials were categorized based on Bardin’s Content Analysis. The instructions provided for preparing the testimonies supported the structuring of four categories: 1) bullying experience; 2) reasons for bullying; 3) consequences of bullying; 4) coping strategies and self-compassion expressions. The results suggest 63.7% of adolescents witnessed bullying behaviors. Physical characteristics were the main motivation reported toward bullying. Negative feelings and psychosomatic symptoms were the main consequences reported. The adolescents reported forms of self-compassion as a coping resource before receiving psychoeducation about the concept. The implications of these findings and the use of psychoeducational interventions on bullying and self-compassion are discussed.

Being bullied and using drugs are associate with eating disorder symptoms in Brazilian students

OBJECTIVE

This study's main purpose is to evaluate factors associated with eating disorder (ED) symptoms among Brazilian adolescents.

METHOD

The sample consisted of 5,213 students, mean age 13.24 (SD ±0.01), in the eighth grade of 93 public schools from three Brazilian cities. Data were collected through an anonymous self-report questionnaire, assessing: sociodemographics, use of alcohol, tobacco, illicit drugs, binge drinking, bullying, and ED symptoms. We used confirmatory factor analysis and multivariate linear regression.

RESULTS

We found that high levels of bullying victimization, binge drinking and the use of unprescribed weight-loss substances were associated with higher levels of ED symptoms to both genders. However, only among girls, the higher age (β = .10; 95% CI = 0.02; 0.17) and the use of illicit drugs (β = .21; 95% CI = 0.094; 0.34) were associated with increase in the ED symptoms.

DISCUSSION

We demonstrate a significant association of ED symptoms with drug use and bullying, highlighting the importance of addressing these factors in the development of ED prevention strategies.

Victims, bullies and bully-victims: prevalence and association with negative health outcomes from a cross-sectional study in São Paulo, Brazil

OBJECTIVES

To estimate the prevalence of self-reported bullying as victims, bullies or bully-victims among 9th grade adolescents in the city of São Paulo, Brazil; to investigate association between bullying with negative health outcomes.

METHODS

Cross-sectional data were obtained in 2017 from a sample of Brazilian adolescents (n = 2680) using a structured, self-administered questionnaire. Bivariate and multivariate Poisson regression were employed to assess in which extent the experience of bullying in position of victim, bully or bully-victim affects adolescents' health.

RESULTS

Prevalence of bullying victimization was 18.3%, while victimization/perpetration and perpetration corresponded to 10.42% and 4.9%, respectively. Adolescents who experienced bullying victimization were more likely to present high levels of internalizing symptoms, to report self-harm, to present negative self-rated health and to use tobacco, when compared with those not involved. Bullies were more likely to use alcohol and to binge drinking. bully-victims presented a higher prevalence of all health outcomes, except for tobacco use.

CONCLUSIONS

Our findings highlight the effect of bullying in adolescents' health, regardless of the position. Planned intersectoral efforts between parents, health and education systems to prevent bullying could therefore reduce negative health outcomes during adolescence.

Family and School Context: Effects on the Mental Health of Brazilian Students

Mental health during adolescence can affect an individual’s long-term quality of life. However, the effects of family and school contexts on students’ mental health have been little explored. This study aims to analyze the relationships between family and school life and feelings of loneliness and trouble sleeping owing to worries in adolescents. The data from this cross-sectional study were obtained from Brazil’s National School Health Survey (PeNSE), which obtained its data through questionnaires. This study’s sample consisted of 102,072 ninth-grade students aged between 11 and 19 years, 52,782 (51.7%) of whom were female, enrolled in public and private schools throughout Brazil. The methodology consisted of an analysis using the Poisson regression model. Regarding the family context, mental health issues were associated with hunger, distant relationships with parents, and family violence. Regarding the school context, feelings of loneliness and trouble sleeping were associated with poor peer relationships, insecurity at school, and schools in more violent areas. This study contributes to the elaboration of public policies aimed at bringing awareness to family members and school bodies that indicators of mental health in adolescents are influenced by the quality of bonds established within these environments.

Vítimas de bullying, sintomas depressivos, ansiedade, estresse e ideação suicida em adolescentes

Objetivou-se verificar a correlação entre ser vítima de bullying, ter sintomas depressivos, de ansiedade, de estresse e ideação suicida em adolescentes. Além disso, foi identificado se havia diferença nos construtos investigados, por gênero e idade. Estudo quantitativo transversal, do qual participaram 117 adolescentes. Utilizaram-se os instrumentos: questionário sociodemográfico, Escala Califórnia de Vitimização do Bullying, Escala de Depressão, Ansiedade e Estresse, e Escala Beck de Suicídio. As análises foram realizadas por meio de estatística descritiva, correlação de Spearman e teste U de MannWhitney. Os resultados indicam que 48,71 % da amostra apresenta ideação suicida. Houve correlação positiva entre ser vítima de bullying e ter sintomas depressivos, ansiedade e estresse, e ser vítima e ter ideação suicida. As meninas apresentam mais sintomas de estresse do que os meninos, e adolescentes mais novos são mais vítimas de bullying do que os mais velhos. Destaca-se, assim, a relevância da discussão desse tema, tanto nas escolas quanto nas famílias, a fim de diminuir o sofrimento psíquico das vítimas.

The impact of cyberbullying on schoolchildren's dental anxiety in Brazil: A cross-sectional multi-level study

OBJECTIVES

This cross-sectional study assessed the correlation between individual and school-related social environment variables with dental anxiety in Brazilian schoolchildren aged 8-12 years.

METHODS

A sample of children from 20 private and public schools (n = 1211) from Pelotas, Brazil, were selected. Socioeconomic data were collected from parents, and data regarding children characteristics were collected using a questionnaire. Dental anxiety (the outcome) was assessed by the following question: 'Are you afraid of going to the dentist?' Dental examinations were performed to assess caries experience (DMFT ≥ 1). The social school environment was assessed by a questionnaire administered to schools' coordinators and considered: type of school, verbal violence between students, presence of gangs at school and cyberbullying episodes. Multilevel Poisson regression was used to investigate the association between school social environment and dental anxiety.

RESULTS

The prevalence of dental anxiety was 9.1% (95%CI 7.5-10.8). For the individual variables, anxiety was more prevalent in girls [1.85 (1.21-2.81)], in children with less-educated mothers [1.50 (1.00-2.27)] and in children who never attended to the dentist [2.48 (1.65-3.72)]. For contextual variables, episodes of cyberbullying in school increased the prevalence of dental anxiety by almost 80% [1.78 (1.14-2.78)].

CONCLUSIONS

The school social environment influences dental anxiety. The results suggest that it is important to establish strategies focused on promoting healthier environments and preventing cyberbullying in order to reduce the occurrence of dental anxiety.