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BULLYING VICTIMIZATION AMONG BRAZILIAN STUDENTS: RESULTS OF THE NATIONAL SURVEY OF SCHOOL HEALTH (PENSE)

ABSTRACT

Objective:

to identify bullying victimization among Brazilian students and analyze its association with individual and contextual variables.

Method:

cross-sectional, population-based study with data collected by the National Survey of School Health. A total of 109,104 9th grade students from public and private schools participated. Data were collected using a self-report questionnaire. We tested a model of association between bullying and sociodemographic variables (age, self-reported race, and mothers’ education), mental health (loneliness, insomnia, and lack of friends), family context (being spanked at home), school absenteeism (missing classes), and risk behavior (drug experimentation). Univariate and multivariate analyses were conducted.

Results:

the prevalence of victimization was 7.2%. Boys and girls aged 14 and 15 years old less frequently experienced bullying, while girls younger than 13 years old more frequently experienced bullying (OR: 1.48, CI95%: 1.02-2.15). Indigenous boys (OR: 1.37, CI95%: 1.15-1.65), Afro-descendant girls (OR: 1.24, CI95%: 1.09-1.40) Asian-descendant girls (OR: 1.43, CI95%: 1.21-1.70) were more frequently victims. Loneliness, lack of friends, insomnia, missing classes, domestic violence, and low level of mother’s education were associated with victimization among both boys and girls while drug use was associated only with girls (OR: 1.19, CI95%: 1.03-1.37).

Conclusion:

the results indicate that bullying victimization interferes in the education and health of students. These findings can support interventions intended to facilitate coping and promote health in schools.

DESCRIPTORS:
Bullying; Violence; Family relations; School health; Risk-Taking

RESUMO

Objetivo:

identificar a prevalência de vitimização por bullying em estudantes brasileiros e analisar sua associação com variáveis individuais e de contexto.

Método:

estudo transversal, de base populacional, com dados provenientes da Pesquisa Nacional de Saúde do Escolar. Participaram 109.104 estudantes do 9º ano do Ensino Fundamental de escolas públicas e privadas. A coleta de dados ocorreu por meio de um questionário autoaplicável. Foi testado o modelo de associação entre o bullying e variáveis sociodemográficas (idade, raça/cor da pele autodeclarada e escolaridade da mãe), de saúde mental (sentimento de solidão, insônia e falta de amigos), de contexto familiar (apanhar em casa), absenteísmo escolar (falta às aulas) e comportamento de risco para a saúde (experimentação de drogas). Foram realizadas análises uni e multivariadas.

Resultados:

a prevalência de vitimização foi de 7,2%. Os meninos e as meninas de 14 e 15 anos sofreram menos bullying, e as meninas menores de 13 anos sofreram mais (OR: 1,48, IC95%: 1,02-2,15). Foram mais vítimas meninos indígenas (OR: 1,37, IC95%: 1,15-1,65), meninas pretas (OR: 1,24, IC95%: 1,09-1,40) e meninas amarelas (OR: 1,43, IC95%: 1,21-1,70). Sentir-se solitário, não ter amigos, ter insônia, faltar às aulas, sofrer violência física na família e possuir mãe com baixa escolaridade foram variáveis associadas à vitimização para meninos e meninas e usar drogas, somente para as meninas (OR: 1,19, IC95%: 1,03-1,37).

Conclusão:

os resultados indicam que a vitimização por bullying interfere na escolaridade e na saúde dos estudantes. Dados que podem subsidiar iniciativas de enfrentamento do bullying e de promoção de saúde nas escolas.

DESCRITORES:
Bullying; Violência; Relações familiares; Saúde escolar; Assunção de riscos

RESUMEN

Objetivo:

identificar la prevalencia de victimización por bullying en los estudiantes brasileños y analizar su asociación con variables individuales y de contexto.

Método:

estudio transversal de base poblacional y con datos provenientes de la investigación Nacional de la Salud del Escolar. Participaron 109.104 estudiantes del 9º año de la Enseñanza Primaria de escuelas públicas y privadas. La obtención de datos se realizó por medio de un cuestionario autoaplicable. Se verifico el modelo de asociación entre el bullying y las variables sociodemográficas (edad, raza/color de la piel autodeclarada y escolaridad de la madre); la salud mental (sentimiento de soledad, insomnio y falta de amigos); el contexto familiar (malos tratos en casa), absentismo escolar (faltar a las clases) y el comportamiento de riesgo para la salud (uso de drogas). Se realizaron análisis univariados y multivariados.

Resultados:

la prevalencia de la victimización fue del 7,2%. Los niños y las niñas de 14 y 15 años sufrieron menos bullying, y las niñas menores de 13 años sufrieron más bullying (OR: 1,48, IC95%: 1,02-2,15). Las mayores víctimas fueron los niños indígenas (OR: 1,37, IC95%: 1,15-1,65), las niñas negras (OR: 1,24, IC95%: 1,09-1,40) y las niñas asiáticas (OR: 1,43, IC95%: 1,21-1,70). Sentirse solitario, no tener amigos, sufrir de insomnio, faltar a las clases, sufrir violencia física en la familia y tener una madre con baja escolaridad fueron las variables asociadas con la victimización para niños y niñas; y el uso de drogas se relacionó solamente con las niñas (OR: 1,19, IC95%: 1,03-1,37).

Conclusión:

los resultados indican que la victimización por bullying interfiere en la escolaridad y en la salud de los estudiantes. Tales datos pueden subsidiar las iniciativas para enfrentar el bullying y promocionar la salud en las escuelas.

DESCRIPTORES:
Bullying; Violencia; Relaciones familiares; Salud escolar; Asunción de riesgos

INTRODUCTION

Bullying is intentional, repetitive violence that occurs among peers and implies a power imbalance between victims and bullies.11 Olweus D. School bullying: development and some important challenges. Annu Rev Clin Psychol [Internet]. 2013 Mar [cited 2017 Feb 23];9:751-80. Available from: http://www.annualreviews.org/doi/10.1146/annurev-clinpsy-050212-185516
http://www.annualreviews.org/doi/10.1146...
Occurrence rates among countries range from 7% to 43% for victims and from 5% to 44% for bullies.22 Cook CR, Williams KR, Guerra NG, Kim TE. Variability in the prevalence of bullying and victimization: a cross-national and methodological analysis. In: Jimerson SR, Swearer S, Espelage DL, editors. Handbook of bullying in schools: an international perspective. New York: Routledge; 2010. In Brazil, victimization ranges from 5.4%33 Malta DC, Silva MAI, Mello FCM, Monteiro RA, Sardinha LMV, Crespo C. Bullying nas escolas brasileiras: resultados da Pesquisa Nacional de Saúde do Escolar (PeNSE), 2009. Ciênc Saúde Coletiva [Internet]. 2010 Oct [cited 2016 Dec 17]; 15(10):3065-76. Available from: http://www.scielo.br/pdf/csc/v15s2/a11v15s2.pdf
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to 67.5%44 Bandeira CM, Hutz CS. Bullying: prevalência, implicações e diferenças entre os gêneros. Psicol Esc Educ [Internet]. 2012 Jun [cited 2016 Dec 15]; 16(1):35-44. Available from: http://www.scielo.br/pdf/pee/v16n1/04.pdf
http://www.scielo.br/pdf/pee/v16n1/04.pd...
and bullying from 10.2%55 Rech RR, Halpern R, Tedesco A, Santos DF. Prevalence and characteristics of victims and perpetrators of bullying. J Pediatr (Rio J) [Internet]. 2013 Apr [cited 2017 Jan 02]; 89(2):164-70. Available from: http://www.scielo.br/pdf/jped/v89n2/en_v89n2a10.pdf
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to 54.7%.44 Bandeira CM, Hutz CS. Bullying: prevalência, implicações e diferenças entre os gêneros. Psicol Esc Educ [Internet]. 2012 Jun [cited 2016 Dec 15]; 16(1):35-44. Available from: http://www.scielo.br/pdf/pee/v16n1/04.pdf
http://www.scielo.br/pdf/pee/v16n1/04.pd...
Studies indicate that bullying negatively affects the health, quality of life, and psychosocial development and education of children and adolescents worldwide.66 Oliveira WA, Silva MAI, Silva JL, Mello FCM, Prado RR, Malta DC. Associations between the practice of bullying and individual and contextual variables from the aggressors’ perspective. J Pediatr (Rio J) [Internet]. 2016 Feb [cited 2016 Dec 17]; 92:32-9. Available from: http://www.scielo.br/pdf/jped/v92n1/1678-4782-jped-92-01-00032.pdf
http://www.scielo.br/pdf/jped/v92n1/1678...
-77 Perron T. Peer victimisation: strategies to decrease bullying in schools. Br J Sch Nurs [Internet]. 2013 Aug [cited 2017 Feb 23];8(1):25-9. Available from: http://www.magonlinelibrary.com/doi/abs/10.12968/bjsn.2013.8.1.25
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Among those involved with bullying, victims are the most vulnerable because they are the direct and indirect targets of bullying. In general, the negative consequences for the victims include a sense of insecurity, loneliness, decreased self-esteem, insomnia, depression, school absenteeism, low academic performance, and suicidal ideation, among other consequences.88 Stanley IH, Horowitz LM, Bridge JA, Wharff EA, Pao M, Teach SJ. Bullying and suicide risk among pediatric emergency department patients. Pediatr Emerg Care [Internet]. 2016 Jun [cited 2017 Feb 23];32(6):347-51. Available from: http://journals.lww.com/pec-online/Abstract/2016/06000/Bullying_and_Suicide_Risk_Among_Pediatric.1.aspx
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9 Andreou E, Didaskalou E, Vlachou A. Bully/victim problems among Greek pupils with special educational needs: associations with loneliness and self-efficacy for peer interactions. J Res Spec Educ Needs [Internet]. 2015 Oct [cited 2017 Feb 23];15(4):235-46. Available from: http://onlinelibrary.wiley.com/doi/10.1111/1471-3802.12028/abstract
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-1010 Williford A, Boulton AJ, Jenson JM. Transitions between subclasses of bullying and victimization when entering middle school. Aggress Behav [Internet]. 2014 Jan [cited 2017 Feb 23]; 40(1):24-41. Available from: http://onlinelibrary.wiley.com/doi/10.1002/ab.21503/abstract
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Victims are generally described as being socially isolated, which restricts the amount of support and help they receive from peers, while at the same time, they do not have the social skills necessary to ask for help from their peers or adults.1111 Sentse M, Kretschmer T, Salmivalli C. The longitudinal interplay between bullying, victimization, and social status: age-related and gender differences. Soc Dev [Internet]. 2015 Aug [cited 2017 Feb 23]; 24(3):659-77. Available from: http://onlinelibrary.wiley.com/doi/10.1111/sode.12115/abstract
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-1212 Bowes L, Maughan B, Ball H, Shakoor S, Ouellet-Morin I, Caspi A, et al. Chronic bullying victimization across school transitions: the role of genetic and environmental influences. Dev Psychopathol [Internet]. 2013 May [cited 2017 Feb 23]; 25(2):333-46. Available from: https://www.ncbi.nlm.nih.gov/pubmed/23627948
https://www.ncbi.nlm.nih.gov/pubmed/2362...
Hence, victimization may occur for long periods without being noticed and more severely impact the education and health of students in the medium or long terms.1313 Silva JL, Oliveira WA, Braga IF, Farias MS, Lizzi EAS, Fagundes MG, et al. The effects of a skill-based intervention for victims of bullying in Brazil. Int J Environ Res Public Health [Internet]. 2016 [cited 2016 Nov 30]; 13:1042-52. Available from: http://www.mdpi.com/1660-4601/13/11/1042/htm.
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For this reason, it is essential to acquire a better understanding of how bullying affects victims and how it is associated with individual characteristics, as well as the characteristics of the context of students. Such an understanding can support interventions intended to reduce vulnerability to victimization, especially considering that, in Brazil, bullying is seldom investigated and few interventions are implemented and scientifically disseminated.1414 Caravita SCS, Colombo B. Bullying behavior, youth’s disease and intervention: which suggestions from the data for research on bullying in the Brazilian context? J Pediatr [Internet]. 2016 Feb [cited 2017 Jan 15]; 92:4-6. Available from: http://www.scielo.br/pdf/jped/v92n1/1678-4782-jped-92-01-00004.pdf
http://www.scielo.br/pdf/jped/v92n1/1678...

Additionally, another important aspect in the dynamics of bullying is that violence and responses to it are modulated by issues related to the sex of those involved,1111 Sentse M, Kretschmer T, Salmivalli C. The longitudinal interplay between bullying, victimization, and social status: age-related and gender differences. Soc Dev [Internet]. 2015 Aug [cited 2017 Feb 23]; 24(3):659-77. Available from: http://onlinelibrary.wiley.com/doi/10.1111/sode.12115/abstract
http://onlinelibrary.wiley.com/doi/10.11...
which leads to the need to develop an approach that captures the different nuances of how victimization affects boys and girls. Even though existing studies addressing differences between the sexes of victims report mixed results, there are indications that boys are more frequently victims than girls55 Rech RR, Halpern R, Tedesco A, Santos DF. Prevalence and characteristics of victims and perpetrators of bullying. J Pediatr (Rio J) [Internet]. 2013 Apr [cited 2017 Jan 02]; 89(2):164-70. Available from: http://www.scielo.br/pdf/jped/v89n2/en_v89n2a10.pdf
http://www.scielo.br/pdf/jped/v89n2/en_v...
and girls are more frequently rejected by peers in comparison to boys.1515 Bouman T, Meulen M, Goossens FA, Olthof T, Vermande MM, Aleva, EA. Peer and self-reports of victimization and bullying: their differential association with internalizing problems and social adjustment. J School Psychol [Internet]. 2012 Jun [cited 2017 Feb 23]; 50(6):759-74. Available from: http://www.sciencedirect.com/science/article/pii/S002244051200074X
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These results reinforce the importance of considering differences between the sexes of victims.

Given the previous discussion, this study’s objective was to identify the prevalence of victimization among Brazilian students and analyze its association with individual and contextual variables.

METHOD

This study presents the results of the second issue of the epidemiological inquiry, National Survey of School Health (PeNSE), conducted by the Ministry of Health and the Brazilian Institute of Geography and Statistics (IBGE). The second issue of PeNSE was conducted in 2012 and the goal was to map behaviors related to the health of Brazilian students. The probabilistic sample was calculated using data from the 2010 School Census to obtain national representativeness. A total of 109,104 9th grade students from both public and private students located in urban and rural areas in the entire Brazilian territory participated. Students attending the 9th grade were chosen because a minimum level of education was necessary to answer the questionnaire used to collect data.33 Malta DC, Silva MAI, Mello FCM, Monteiro RA, Sardinha LMV, Crespo C. Bullying nas escolas brasileiras: resultados da Pesquisa Nacional de Saúde do Escolar (PeNSE), 2009. Ciênc Saúde Coletiva [Internet]. 2010 Oct [cited 2016 Dec 17]; 15(10):3065-76. Available from: http://www.scielo.br/pdf/csc/v15s2/a11v15s2.pdf
http://www.scielo.br/pdf/csc/v15s2/a11v1...

All students present at the day of data collection, who voluntarily consented to participate in the study were included, totaling 83% of the total number of students enrolled in the period. Most participants were girls (52.2%); 86% were aged between 13 and 15 years old;1616 Malta DC, Prado RR, Dias AJR, Mello FCM, Silva MAI, Costa MR, et al. Bullying and associated factors among Brazilian adolescents: analysis of the National Adolescent School-based Health Survey (PeNSE 2012). Rev Bras Epidemiol [Internet]. 2014 [cited 2017 Jan 21]; 17 (Suppl 1):131-145. Available from: http://www.scielo.br/pdf/rbepid/v17s1/1415-790X-rbepid-17-s1-00131.pdf
http://www.scielo.br/pdf/rbepid/v17s1/14...
82.8% attended public schools and 17.2% attended private schools located in the urban or rural areas of a set of cities from the entire national territory (all capitals, the Federal District, and interiors of the states).1616 Malta DC, Prado RR, Dias AJR, Mello FCM, Silva MAI, Costa MR, et al. Bullying and associated factors among Brazilian adolescents: analysis of the National Adolescent School-based Health Survey (PeNSE 2012). Rev Bras Epidemiol [Internet]. 2014 [cited 2017 Jan 21]; 17 (Suppl 1):131-145. Available from: http://www.scielo.br/pdf/rbepid/v17s1/1415-790X-rbepid-17-s1-00131.pdf
http://www.scielo.br/pdf/rbepid/v17s1/14...

Data were collected between April and September 2012 by previously trained agents from the Brazilian Institute of Geography and Statistics (IBGE). The IBGE agents visited schools during class hours and explained to the students the study’s objectives and procedures. Each student received a smartphone that contained free and informed consent forms and the questionnaires with thematic modules with variable numbers of questions. The agents instructed the students collectively regarding the voluntary nature of their participation in the PeNSE survey, how to answer the questionnaires via smartphone, and remained available to clarify individual doubts. Data from the students who did not provide their consent were not included in the study. Data collection took 50 minutes, on average (duration of one class time).

Information concerning victimization was collected through the question: “IN THE LAST 30 DAYS, how often has one or more of your schoolmates mistreated, duped, teased, intimidated, or mocked you so much that you felt hurt, harassed, annoyed, offended or humiliated?”. The answers were organized on a five-point Likert scale: 1) Not once in the last 30 days; 2) Rarely in the last 30 days; 3) A few times in the last 30 days; 4) Most of the time in the last 30 days; 5) Always in the last 30 days. Students who checked options 4 or 5 were considered victims.

Mental health variables (loneliness, insomnia and lack of friends), variables concerning the family context (being spanked at home), absenteeism (missing classes), and health risk behavior (drug experimentation) were measured with agreement scales, which varied according to frequency (in the last seven days, number of days or none, for instance) and by yes and no categories. Sociodemographic characteristics were: age, sex, self-reported race, and mother’s education.

In regard to data analysis, the prevalence of variables was calculated considering a confidence interval of 95% (CI95%). Logistic regression was used to analyze factors associated with bullying victimization with Odds Ratio and a respective CI of 95%. Statistically significant variables (p<0.05) remained in the final adjusted multivariate model. The analysis was conducted using SPSS, version 20 and the Complex Samples Module was used, considering the survey’s complex sampling.

The project to which this study is linked was submitted to and approved by the Institutional Review Board at the Ministry of Health (CONEP/MS No. 16,805 and opinion report No. 192/2012). Participation was voluntary and the adolescents provided their consent by completing the free and informed consent form provided in the first page of questionnaire applied using a smartphone. Note that the Statute of the Child and Adolescent (ECA) provides for the autonomy of adolescents to take initiative, such as responding to a questionnaire that does not impose a risk to their health or instruments that can support policies and actions directed to this population.

RESULTS

The results show that 7.2% (n=7,856) of the students in the total sample (n=109,104) were involved in bullying situations as victims; boys were significantly more frequently involved with bullying than girls. Table 1 presents the results for both sexes in terms of sociodemographic variables.

Table 1
Sociodemographic characteristics of students, victims of bullying. National Survey of School Health (PeNSE), Brazil, 2012. (n=109,104)

Boys aged 14, 15 and 16 years old and 14-year old girls less frequently experienced bullying. In terms of race, male students who self-reported being indigenous were those who more frequently experienced bullying. A higher prevalence of bullying among female students took place among those who reported being Asian or Afro-descendant. Mother’s education was negatively associated with victimization, indicating that when mothers have some level of education, children of both sexes are less likely to become victims of bullying. Table 2 shows the distribution of victims according to sex in regard to the variables: mental health (loneliness, insomnia and friendship), domestic violence (being spanked), school absenteeism, and health risk behavior (drug experimentation).

Table 2
Variables concerning mental health, family context and health risk behavior of students, victims of bullying. National Survey of School Health (PeNSE), Brazil, 2012. (n=109,104)

Most victims, both girls and boys, reported loneliness. Victims of both sexes reported a lack of friends. The Odds Ratio of victims who experience insomnia was three times greater for boys and twice as great for girls. Victims of both sexes also reported missing classes, while drug experimentation was almost two times greater among female victims.

Most victims, boys and girls, reported loneliness. Victims of both sexes also reported lack of friends. The Odds Ratio of victims, both sexes, is three times greater for insomnia. Domestic violence was almost three times greater for boys and twice as great for girls. Victims of both sexes also more frequently missed classes. Drug experimentation was more frequent among female victims, at almost twice the rate of non-victims.

Table 3 presents the results obtained after adjusting for all the model variables. Boys and girls aged 14 and 15 years old less frequently experienced bullying, while girls younger than 13 years old more frequently experienced bullying. Victims more frequently were indigenous boys and Afro- and Asian-descendant girls. Higher level of maternal education protected against victimization in both sexes. Feeling lonely, not having friends, having insomnia, missing classes, being spanked by family members, and having a mother with a low educational level were variables associated with victimization for boys and girls, while the use of drugs was associated with victimization only among girls.

Table 3
Final model adjusted for all the sociodemographic variables and variables concerning mental health, and those from the family and school contexts of bullying victims. National Survey of School Health (PeNSE), Brazil, 2012. (n=109,104)

DISCUSSION

Boys are more frequently victims, especially indigenous individuals. Afro-descendant and Asian-descendant girls are also more frequently victimized. A higher level of maternal education was negatively associated with victimization, while domestic violence (being spanked) was associated with being a victim, both among boys and girls. Victims of both sexes more frequently reported loneliness, having fewer friends, having insomnia, missing classes, and experimenting with drugs.

This study identified 7.2% of the students as victims of bullying; a rate greater than the 5.4% identified in the previous survey, conducted in 2009.33 Malta DC, Silva MAI, Mello FCM, Monteiro RA, Sardinha LMV, Crespo C. Bullying nas escolas brasileiras: resultados da Pesquisa Nacional de Saúde do Escolar (PeNSE), 2009. Ciênc Saúde Coletiva [Internet]. 2010 Oct [cited 2016 Dec 17]; 15(10):3065-76. Available from: http://www.scielo.br/pdf/csc/v15s2/a11v15s2.pdf
http://www.scielo.br/pdf/csc/v15s2/a11v1...
This increase may be explained by the fact that students are increasingly aware of this phenomenon, due to an emphasis in the media in recent years, and for this reason, it is recognized more easily. Other studies support the result that boys more frequently experience bullying,55 Rech RR, Halpern R, Tedesco A, Santos DF. Prevalence and characteristics of victims and perpetrators of bullying. J Pediatr (Rio J) [Internet]. 2013 Apr [cited 2017 Jan 02]; 89(2):164-70. Available from: http://www.scielo.br/pdf/jped/v89n2/en_v89n2a10.pdf
http://www.scielo.br/pdf/jped/v89n2/en_v...
,1717 Sampaio JMC, Santos GV, Oliveira WA, Silva JL, MM, Silva MAI. Emotions of students involved in cases of bullying. Texto Contexto Enferm [Internet]. 2015 [cited 2016 Dec 13]; 24:344-52. Available from: http://www.scielo.br/pdf/tce/v24n2/0104-0707-tce-24-02-00344.pdf
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-1818 Silva MAI, Pereira B, Mendonça D, Nunes B, Oliveira WA. The involvement of girls and boys with bullying: an analysis of gender diferences. Int J Environ Res Public Health [Internet]. 2013 Dec [cited 2017 Jan 16];10(12):6820-31. Available from: http://www.mdpi.com/1660-4601/10/12/6820/htm
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which may be explained by demands of a cultural nature with which boys have to cope, such as a need to portray an image of masculinity, domination and power, which encourages boys to be perpetrators and, consequently, more frequently suffer bullying.66 Oliveira WA, Silva MAI, Silva JL, Mello FCM, Prado RR, Malta DC. Associations between the practice of bullying and individual and contextual variables from the aggressors’ perspective. J Pediatr (Rio J) [Internet]. 2016 Feb [cited 2016 Dec 17]; 92:32-9. Available from: http://www.scielo.br/pdf/jped/v92n1/1678-4782-jped-92-01-00032.pdf
http://www.scielo.br/pdf/jped/v92n1/1678...

In regard to the age of the victims, note that all were attending the same school grade and victimization was less frequent among older students. This result is in agreement with the literature, which indicates that victimization decreases with age.11 Olweus D. School bullying: development and some important challenges. Annu Rev Clin Psychol [Internet]. 2013 Mar [cited 2017 Feb 23];9:751-80. Available from: http://www.annualreviews.org/doi/10.1146/annurev-clinpsy-050212-185516
http://www.annualreviews.org/doi/10.1146...
One potential explanation is that older students are better able to defend themselves due greater physical, cognitive and social development.1212 Bowes L, Maughan B, Ball H, Shakoor S, Ouellet-Morin I, Caspi A, et al. Chronic bullying victimization across school transitions: the role of genetic and environmental influences. Dev Psychopathol [Internet]. 2013 May [cited 2017 Feb 23]; 25(2):333-46. Available from: https://www.ncbi.nlm.nih.gov/pubmed/23627948
https://www.ncbi.nlm.nih.gov/pubmed/2362...
In addition to increased physical strength and cognitive development, improved social skills facilitate socialization with peers and the ability to devise more appropriate coping strategies to deal with bullying. Younger students still lack these characteristics and may be more vulnerable to bullying.

Most students experiencing bullying from both sexes belonged to ethnic minorities, which is in agreement with the literature. A smaller number of students from a given ethnicity/race leads to an imbalance of power and individuals become potential victims of students who are represented in greater numbers.1919 Felix ED, You S. Peer victimization within the ethnic context of high school. J Community Psychol [Internet]. 2011 Sep [cited 2017 Feb 23]; 39:860-75. Available from: http://onlinelibrary.wiley.com/doi/10.1002/jcop.20465/abstract
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Note that issues related to social dynamics, such as intolerance and prejudice, are also predictors of bullying;2020 Oliveira WA, Silva JL, Querino RA, Silva MAI. Experiences and perceptions of discrimination related to bullying among Brazilian students. Maltrattamento e abuso all’infanzia [Internet]. 2016 Mar [cited 2017 Feb 23]; 18(1):13-38. Available from: https://www.francoangeli.it/riviste/Scheda_rivista.aspx?IDArticolo=56270
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however, the relationship between victimization and race is complex and may be biased in various studies due to the composition of the relevant samples. Balance or imbalance in the proportion of students in each ethnic group restricts the generalization of results.1919 Felix ED, You S. Peer victimization within the ethnic context of high school. J Community Psychol [Internet]. 2011 Sep [cited 2017 Feb 23]; 39:860-75. Available from: http://onlinelibrary.wiley.com/doi/10.1002/jcop.20465/abstract
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For instance, the larger number of students who self-reported being Asian-descendants, three times greater than the number identified in the Census 2010, may have influenced the results presented by the girls, and therefore, should be considered with caution.

Data concerning the mothers’ education levels indicate that the higher the educational level of mothers, the lower is the likelihood of individuals experiencing school bullying, among both girls and boys. One longitudinal study conducted in the United States with a representative sample identified an association between the low educational level of mothers and being a victim of bullying involving some type of weapon.2121 Fu Q, Land KC, Lamb VL. Bullying victimization, socioeconomic status and behavioral characteristics of 12th graders in the United States, 1989 to 2009: repetitive trends and persistente risk differentials. Child Indic Res [Internet]. 2013 Mar [cited 2017 Feb 23]; 6(1):1-21. Available from: http://www.soc.duke.edu/~cwi/Section_I/I-8BullyingVictimizationRepetitiveTrends.pdf
http://www.soc.duke.edu/~cwi/Section_I/I...
A potential explanation is that mothers’ education influences family dynamics and parental practices, as well as being related to the students’ socioeconomic status, in addition to their social and cultural experiences.2222 Oliveira WA, Silva JL, Yoshinaga ACM, Silva MAI. Interfaces entre família e bullying escolar: uma revisão sistemática. Psico-USF [Internet]. 2015 Apr [cited 2017 Jan 11]; 20(1):121-32. Available from: http://www.scielo.br/pdf/pusf/v20n1/1413-8271-pusf-20-01-00121.pdf
http://www.scielo.br/pdf/pusf/v20n1/1413...
-2323 Rodrigues OMPR, Nogueira SC, Altafim ERP. Práticas parentais maternas e a influência de variáveis familiares e do bebê. Pensando Famílias [Internet]. 2013 Dec [cited 2016 Sep 24]; 17(2):71-83. Available from: http://pepsic.bvsalud.org/pdf/penf/v17n2/v17n2a06.pdf
http://pepsic.bvsalud.org/pdf/penf/v17n2...
Thus, we assume that mothers with higher levels of education have more knowledge on how to raise children, how to impose appropriate limits, and how to supervise and help their children to deal with their needs or difficulties in interacting with schoolmates.

Feeling lonely was associated with bullying in both sexes. Other studies indicate loneliness may lead to mental health problems such as anxiety, depression, or low self-esteem.2424 Craig W, Harel-Fisch Y, Fogel-Grinvald H, Dostaler S, Hetland J, Simons-Morton B, et al. A cross-national profile of bullying and victimization among adolescents in 40 countries. Int J Public Health [Internet]. 2009 Sep [cited 2017 Feb 23]; 54(Suppl 2):216-24. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2747624/
https://www.ncbi.nlm.nih.gov/pmc/article...
-2525 Arseneault L, Bowes L, Shakoor S. Bullying victimization in youths and mental health problems: “much ado about nothing”? Psychol Med [Internet]. 2010 May [cited 2017 Feb 23]; 40(5):717-29. Available from: https://www.ncbi.nlm.nih.gov/pubmed/19785920
https://www.ncbi.nlm.nih.gov/pubmed/1978...
Lonely people have negative perceptions of others and tend to interpret their social contexts as threatening. Such perceptions may lead to social isolation, a characteristic identified as a predictor of bullying victimization.1313 Silva JL, Oliveira WA, Braga IF, Farias MS, Lizzi EAS, Fagundes MG, et al. The effects of a skill-based intervention for victims of bullying in Brazil. Int J Environ Res Public Health [Internet]. 2016 [cited 2016 Nov 30]; 13:1042-52. Available from: http://www.mdpi.com/1660-4601/13/11/1042/htm.
http://www.mdpi.com/1660-4601/13/11/1042...
,2626 Qualter, P., Vanhalst, J., Harris, R., Van Roekel, E., Lodder, G., Bangee, M., Maes, M. and Verhagen, M. Loneliness across the life span. Perspect Psychol Sci [Internet]. 2015 Mar [cited 2017 Feb 23]; 10(2):250-64. Available from: http://journals.sagepub.com/doi/abs/10.1177/1745691615568999
http://journals.sagepub.com/doi/abs/10.1...
This is a situation that affected the victims in this study, who more frequently reported not having friends than did their non-victims counterparts. Friends provide social and emotional support, the development of social skills, support one’s self-esteem and protect against victimization.1313 Silva JL, Oliveira WA, Braga IF, Farias MS, Lizzi EAS, Fagundes MG, et al. The effects of a skill-based intervention for victims of bullying in Brazil. Int J Environ Res Public Health [Internet]. 2016 [cited 2016 Nov 30]; 13:1042-52. Available from: http://www.mdpi.com/1660-4601/13/11/1042/htm.
http://www.mdpi.com/1660-4601/13/11/1042...
Therefore, not having friends is a concern because friendship is an aspect that promotes one’s self-esteem, self-conception and quality of life.66 Oliveira WA, Silva MAI, Silva JL, Mello FCM, Prado RR, Malta DC. Associations between the practice of bullying and individual and contextual variables from the aggressors’ perspective. J Pediatr (Rio J) [Internet]. 2016 Feb [cited 2016 Dec 17]; 92:32-9. Available from: http://www.scielo.br/pdf/jped/v92n1/1678-4782-jped-92-01-00032.pdf
http://www.scielo.br/pdf/jped/v92n1/1678...

Even though girls more frequently reported not having friends, boys, despite having more friends, more frequently reported feeling lonely. We assume that their friendships were not very close or their friends were victims, as well, thus they were not able to defend each other. The literature shows that the most important aspect in relation to bullying is not one’s quantity of friends or the presence of friends, but the quality of friendships in terms of closeness and affective conditions to provide support and protection.1313 Silva JL, Oliveira WA, Braga IF, Farias MS, Lizzi EAS, Fagundes MG, et al. The effects of a skill-based intervention for victims of bullying in Brazil. Int J Environ Res Public Health [Internet]. 2016 [cited 2016 Nov 30]; 13:1042-52. Available from: http://www.mdpi.com/1660-4601/13/11/1042/htm.
http://www.mdpi.com/1660-4601/13/11/1042...
This is important information that legitimates the need to expand the social networks of victims, especially making friends with those who can help them overcome their vulnerability.

The results showing that victimization is associated with insomnia are also reported by other studies. One longitudinal study2727 Lallukka T, Rahkonen O, Lahelma E. Workplace bullying and subsequent sleep problems - the Helsinki Health Study. Scand J Work Environ Health [Internet]. 2011 May [cited 2017 Feb 23]; 37(3):204-12. Available from: http://www.sjweh.fi/show_abstract.php?abstract_id=3137
http://www.sjweh.fi/show_abstract.php?ab...
identified a relationship between being a victim of bullying and presenting sleep disorders. No distinction was found between sexes in regard to this variable, so that both boys and girls may present sleeping problems, related to some degree to bullying experienced at school. A potential explanation is that quality of sleep, especially during adolescence, is related to a perception of safety. The perception of threats increases excitement and makes it more difficult to fall asleep, while stress accruing from the prospect of being assaulted again or that such a condition may last, generates distress.2828 Kubiszewski V, Fontaine R, Potard C, Gimenes G. Bullying, sleep/wake patterns and subjective sleep disorders: findings from a cross-sectional survey. Chronobiol Int [Internet]. 2014 May [cited 2017 Feb 23]; 31(4):542-53. Available from: http://www.tandfonline.com/doi/abs/10.3109/07420528.2013.877475?journalCode=icbi20
http://www.tandfonline.com/doi/abs/10.31...
These results, together with those concerning loneliness, indicate psychological distress that affects the quality of life and the psychosocial development of victims. School absenteeism, similar to sleeping problems, was equally reported by both sexes and was already expected because it is a strategy victims adopt to avoid agression.2929 Popp AM. The effects of exposure, proximity, and capable guardians on the risk of bullying victimization. Youth Violence Juv Justice [Internet]. 2012 Apr [cited 2017 Feb 23]; 10(4):315-32. Available from: http://journals.sagepub.com/doi/abs/10.1177/1541204011434833
http://journals.sagepub.com/doi/abs/10.1...

Facing physical violence at home (being spanked) was associated with victimization in both sexes. Boys, however, more frequently experience domestic violence. Other studies also report this relationship,3030 Zottis GA, Salum GA, Isolan LR, Manfro GG, Heldt E. Associations between child disciplinary practices and bullying behavior in adolescents. J Pediatr (Rio J) [Internet]. 2014 Aug [cited 2016 Sep 24]; 90(4):408-14. Available from: http://www.scielo.br/pdf/jped/v90n4/0021-7557-jped-90-04-00408.pdf
http://www.scielo.br/pdf/jped/v90n4/0021...
-3131 Boel-Studt S, Renner LM. Individual and familial risk and protective correlates of physical and psychological peer victimization. Child Abuse Negl [Internet]. 2013 Dec [cited 2017 Feb 23]; 37(12):1163-74. Available from: http://www.sciencedirect.com/science/article/pii/S0145213413002056
http://www.sciencedirect.com/science/art...
highlighting that, not only does personally experiencing physical violence increase the likelihood of becoming a victim of bullying, but witnessing domestic violence has a similar effect, as well. Punitive disciplinary methods may lead to anxiety, social restraint and submission, characteristics that predispose students to become targets of bullying at school. The literature shows that there is also a relationship between domestic violence and the consumption of alcohol and drugs during adolescence. A cross-sectional study conducted in the United States identified a greater likelihood of alcohol consumption among students involved with bullying.3232 Peleg-Oren N, Cardenas GA, Comerford M, Galea S. An association between bullying behaviors and alcohol use among middle school students. J Early Adolesc [Internet]. 2012 Dec [cited 2017 Feb 23]; 32(6):761-75. Available from: http://journals.sagepub.com/doi/abs/10.1177/0272431610387144
http://journals.sagepub.com/doi/abs/10.1...

The results concerning drug experimentation differ between boys and girls in this study; only female victims of bullying experimented with drugs in a greater proportion compared to their non-victim counterparts. Male victims of bullying less frequently experiment with drugs compared to their non-victim counterparts. This is an important result that signals that girls probably face more difficulties in dealing with bullying at school and drugs may be a mechanism of escape. This relationship, however, needs to be better investigated.

The strengths of this study include the fact that a national and representative sample was used together with an exploratory design, which enabled discussing the variables related to the phenomenon from a contextual perspective. The results, however, should be interpreted considering some limitations. First, self-report questionnaires may lead to bias of memory and interpretation on the part of respondents. Another limitation involves the model of epidemiological inquiry used in the National Survey of School Health (PeNSE). The large range of variables addressed in the survey impeded better exploration of some important aspects related to bullying and victimization, such as: type of bullying; places at school where bullying more frequently occurs; and the age and sex of bullies, among others things. Future surveys conducted by PeNSE should include questions related to bullying in order to acquire a deeper understanding of its occurrence in Brazilian schools and its main characteristics.

Additionally, the study’s cross-sectional design does not allow causal relationships to be established between bullying and the other variables. Future studies with a longitudinal design may indicate how victimization is associated with individual variables and the family context over time, in order to identify whether victimization is a cause or consequence. Finally, further research is necessary, especially in the field of health, because bullying negatively affects the health development of school-aged children and adolescents.

CONCLUSIONS

This study’s results present an overview of bullying victimization in the Brazilian territory. The identification of sociodemographic variables, mental health, family context, school absenteeism, and risk behavior associated with school bullying is essential to acquiring a greater understanding of the phenomenon at a national level, considering the representative sample used in this survey. These data can support discussions and the development of proposals intended to prevent and cope with bullying, such as health promotion initiatives in Brazilian schools that are in agreement with the principles of the Programa Saúde na Escola [School Health Program] or initiatives intended to implement a culture of peace in the school environment.

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    » https://www.ncbi.nlm.nih.gov/pubmed/19785920
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    » http://journals.sagepub.com/doi/abs/10.1177/1745691615568999
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    » http://www.sjweh.fi/show_abstract.php?abstract_id=3137
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    » http://www.tandfonline.com/doi/abs/10.3109/07420528.2013.877475?journalCode=icbi20
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    Popp AM. The effects of exposure, proximity, and capable guardians on the risk of bullying victimization. Youth Violence Juv Justice [Internet]. 2012 Apr [cited 2017 Feb 23]; 10(4):315-32. Available from: http://journals.sagepub.com/doi/abs/10.1177/1541204011434833
    » http://journals.sagepub.com/doi/abs/10.1177/1541204011434833
  • 30
    Zottis GA, Salum GA, Isolan LR, Manfro GG, Heldt E. Associations between child disciplinary practices and bullying behavior in adolescents. J Pediatr (Rio J) [Internet]. 2014 Aug [cited 2016 Sep 24]; 90(4):408-14. Available from: http://www.scielo.br/pdf/jped/v90n4/0021-7557-jped-90-04-00408.pdf
    » http://www.scielo.br/pdf/jped/v90n4/0021-7557-jped-90-04-00408.pdf
  • 31
    Boel-Studt S, Renner LM. Individual and familial risk and protective correlates of physical and psychological peer victimization. Child Abuse Negl [Internet]. 2013 Dec [cited 2017 Feb 23]; 37(12):1163-74. Available from: http://www.sciencedirect.com/science/article/pii/S0145213413002056
    » http://www.sciencedirect.com/science/article/pii/S0145213413002056
  • 32
    Peleg-Oren N, Cardenas GA, Comerford M, Galea S. An association between bullying behaviors and alcohol use among middle school students. J Early Adolesc [Internet]. 2012 Dec [cited 2017 Feb 23]; 32(6):761-75. Available from: http://journals.sagepub.com/doi/abs/10.1177/0272431610387144
    » http://journals.sagepub.com/doi/abs/10.1177/0272431610387144

Publication Dates

  • Publication in this collection
    09 Aug 2018
  • Date of issue
    2018

History

  • Received
    24 Feb 2017
  • Accepted
    22 Aug 2017
Universidade Federal de Santa Catarina, Programa de Pós Graduação em Enfermagem Campus Universitário Trindade, 88040-970 Florianópolis - Santa Catarina - Brasil, Tel.: (55 48) 3721-4915 / (55 48) 3721-9043 - Florianópolis - SC - Brazil
E-mail: textoecontexto@contato.ufsc.br