Bullying and cyberbullying are serious public health concerns that involve more roles beyond the bully and the victim (pro-bullies, defenders, bystanders). However, students often perceive the phenomena as dyadic.

The purpose was to examine students' perceptions of different roles when observing bullying and cyberbullying scenes combining implicit (attention by using the eye-tracker) and explicit (verbal reports) measures.

We included 50 Italian students (aged 10-11).

Students watched 12 drawings of different types of bullying and cyberbullying while their gaze was tracked, and subsequently described each drawing verbally. We ran repeated measure ANOVAs to compare attentional indexes (fixation count, visit count and total fixation duration) in observing roles and Cochran's Q test to evaluate differences in the verbal identification of roles.

Overall, the victim and bully were the most observed and identified roles in every type of bullying and cyberbullying scenario. Concerning the other roles, a discrepancy was observed between the implicit and explicit measures since although it was greatly identified, the pro-bully received less attention, and while the bystander received great attention, it was mentioned less. Finally, the defender was more observed and identified in physical bullying and cyberbullying.

Our study points out for the first time the dyadic perception of the phenomena among adolescents using implicit and explicit measures and sheds light on differences among the roles in different forms of bullying. Further research including the eye-tracker would be worthwhile given the possibility of exploring the phenomena from different perspectives.

Social connection factors play a key role for young people's mental health. It is important to understand how their influence may vary across contexts. We investigated structural (e.g. household size), functional (e.g. social support) and quality (e.g. feeling close) social connection factors in relation to adolescent internalising and externalising symptoms, comparing two countries Brazil and the United Kingdom (UK).

We pooled data from the UK Millennium Cohort Study (MCS) and the Brazilian High Risk Cohort Study (BHRCS). We included 12 social connection variables, identified through retrospective harmonisation and lived experience expert involvement. We tested measurement invariance and conducted multiple regressions to analyse associations between the social connection factors (age 14) and later internalising and externalising difficulties (age 17.5) in both cohorts. We investigated country-level interactions and used weights to account for attrition, survey design, population representativeness and sample size.

We found pooled main associations with later internalising symptoms for 'living with half-siblings' (p < .001), 'moving address' (p = .001), 'mother marital status' (p < .001-.003), 'bullying' (p = .001), 'being bullied' (p < .001) and 'difficulties keeping friends' (p < .001). For externalising, we found main associations with 'household size' (p = .041), 'moving address' (p = .041), 'mother's marital status' (p = .001-.013), 'bullying others' (p < .001) and 'being bullied' (p < .001). Country-level interactions suggested higher internalising symptoms were associated with 'household size' (p = .001) in Brazil and 'being bullied' (p < .001) in MCS. Additionally, 'half-siblings in household' (p = .003), 'poor mother-child relationship' (p = .018), 'single mother' (p = .035), 'bullying' (p < .001) and 'being bullied' (p < .001) were more strongly linked to externalising difficulties in MCS.

Social connection factors, mostly structural, contributed to adolescent internalising and externalising difficulties in both countries. Factors relating to bullying and family composition seem to play a stronger role in each country. Cultural and socioeconomic factors might explain these differences. Future research should investigate cross-regional differences to meaningfully inform global mental health efforts.

This study explored serious mental illness (SMI) in young adult offenders imprisoned for violent or sexual crimes, estimating the effects of neurodevelopmental disorders and early-life risk factors on the development of SMI, and its prospective long-term adverse outcomes. An all-male cohort of 266 violent offenders, assessed during imprisonment when aged 18-25 years (M = 21.8, SD = 1.9), was followed prospectively (Myears = 6.2, SD = 1.3) in Swedish national registers together with a general population group (n = 10,000). The baseline prevalence of SMI in late adolescence or young adulthood was 10 % (n = 26) in the violent offender cohort. Childhood-onset conduct disorder (OR 2.7 [1.0-7.1]) was associated with SMI in multivariable logistic regression analyses. Prospectively, violent offenders with, versus without, SMI exhibited heightened total crime rate (IRR 1.4 [1.0-2.2]), prison reconvictions (IRR 1.5 [1.0-2.1]), and psychiatric inpatient care (IRR 3.7 [1.6-8.4]), in zero-inflated Poisson regression models. The usage of outpatient psychiatric and somatic care was low in violent offenders with SMI, even relative to the general population group. The results emphasize the need for early identification of at-risk children, such as those with childhood-onset conduct disorder, and challenges with engaging violent offenders with SMI in healthcare.

Food allergy (FA)-related bullying is common, yet little is known about risk factors for FA-related bullying or the relationship between FA-related bullying and psychosocial wellbeing. This study aimed to (1) identify sociodemographic and clinical factors associated with risk of FA-related bullying in children with FA, and (2) evaluate the psychosocial functioning of children and parents reporting FA-related bullying.

This was a cross-sectional survey study of children ages 5-17 years with immunoglobulin E (IgE)-mediated FA and their parents, recruited from Boston Children's Hospital (BCH) and through social media outlets. Children and parents with versus without a history of FA-related bullying were compared on sociodemographic and clinical characteristics and FA-related psychosocial outcomes using validated instruments.

In this cohort of 295 child-parent dyads, the median child age was 8.0 years, 53.2% of children were male, and parent respondents were primarily mothers (96.6%). Reported lifetime prevalence of FA-related bullying was 36.6%. FA-related bullying was associated with certain child characteristics, including coming from a household at risk of food insecurity (FI) (12.0% of bullied children v. 2.2% of not bullied children were from food insecure households, p < .001), having coexisting atopic and mental health conditions-particularly anxiety (30.6% of bullied children v. 8.6% of not bullied children carried an anxiety disorder diagnosis, p < .001)-and having a history of more severe FA reactions. FA-related bullying was associated with elevated concerns in child and parental FA-related psychosocial functioning domains.

Pediatricians and allergists should screen for FA-related bullying and offer families appropriate guidance around management of FA-related bullying.

School bullying is a prevalent public health problem that adversely impacts adolescents' mental health. Defined as intentional, repeated, and harmful aggressive behaviors among peers, bullying leads to severe psychological distress, including anxiety, depression, and suicidal ideation among victims. This narrative review aims to summarize the recent research progress on the conceptions, prevalence, and factors associated with school bullying and its impact on adolescent mental health. The ultimate goal is to inform the development of interventions for reducing or preventing mental health problems among adolescents from the perspective of school bullying.

Both Chinese- and English-language studies that focused on school bullying and its association with mental health among adolescents were retrieved via online literature search within PubMed, Web of Science, and China National Knowledge Infrastructure from their inception to October 25, 2024. Findings from the included studies were qualitatively analyzed and summarized.

A significant percentage of adolescents worldwide experience school bullying. It is characterized by repetition, power imbalance, and intent to harm. Forms of bullying include verbal, physical, relational, sexual, and cyberbullying, with verbal bullying being the most frequently reported. Factors associated with school bullying include individual characteristics, family dynamics, school environment, and societal factors. The negative mental health impact of bullying in adolescents is profound, affecting not only victims but also bullies and bystanders, leading to short-term and long-term consequences such as anxiety, depression, substance abuse, and suicidal behaviors.

School bullying is a complex behavior with multifaceted causes and far-reaching mental health outcomes. While preventive measures have been implemented, the prevalence remains high, indicating a need for more effective interventions. The review underscores the importance of addressing school bullying from multiple angles, including individual, family, school, and societal levels, and calls for further research to examine newer and more effective interventions to mitigate the high risk of school bullying and its detrimental effects on adolescent mental health.

Peer victimisation, often a serious childhood stressor, has been associated with poor cognitive outcomes. The current study sought to uncover whether peer victimisation is associated with poor cognitive functioning in childhood via inflammation.

Data from 4583 participants in the Avon Longitudinal Study of Parents and Children (ALSPAC) were analysed. Path analysis was conducted to determine whether inflammation, measured using IL-6 and CRP levels (age 9), mediates the effects of peer victimisation (age 8), even after controlling for other stressors, on multiple cognitive outcomes, including working memory (age 10), reading (accuracy, speed, and comprehension) (age 9), spelling (age 9), response inhibition (age 10), attentional control (age 11), and selective attention (age 11).

IL-6 and CRP partially mediated the effects of peer victimisation on working memory, reading accuracy, and selective attention. IL-6 partially mediated the effect of peer victimisation on reading comprehension, while CRP partially mediated the effect of peer victimisation on reading speed. All effects were small. Inflammation did not mediate the effects of peer victimisation on spelling, response inhibition or attentional control.

Peer victimisation may impact on some aspects of children's cognitive functioning via inflammation. The cognitive outcome specificity observed warrants further research.

Childhood sexual abuse (CSA) and bullying are serious public health concerns that influence child, adolescent, and adult health. This study aims to provide updated estimate of age- and sex- specific deaths and disability-adjusted life years (DALYs) associated with CSA and bullying from 1990 to 2019 at the global, regional, and national levels, and to forecast the global burden of disease attributed to it from 2020 to 2035.

We used the data for the number of deaths, DALYs, age-standardized rate (per 100,000 population), percentage change, and population attributable fraction (PAF) from the Global Burden of Disease Study 2019 (GBD 2019) to assess the disease burden attributable to CSA and bullying. We further applied an autoregressive integrated moving average (ARIMA) model to predict the disease burden for the period 2020 to 2035.

In 2019, CSA and bullying accounted for 0.02% and 0.28% of global all-cause deaths and DALYs, respectively. The highest deaths rates were observed in men aged 45-49, and women aged 50-54. The highest DALYs rates were observed in men aged 20-24 and women aged 15-19. The highest age-standardized deaths and DALYs rates were observed in the Eastern Europe region (1.222 [95% UI 0.161, 3.013]) and in High-Income North America region (176.613 [95% UI 79.02, 312.064]) per 100,000 people respectively. El Salvador (1.523 [95% UI 0.209, 3.589]) and Greenland (298.014 [95% UI 138.745, 518.086]) per 100,000 people had the highest age-standardized- deaths and DALYs rates, respectively. The highest age-standardized rates of CSA and bullying related deaths and DALYs were observed in high-socio-demographic Index (SDI) quintile. The age-standardized deaths rate attributable to CSA and bullying is projected to decrease in both sexes between 2019 and 2035, whereas the age-standardized DALYs rate is projected to decrease in male and increase in female between 2019 and 2035.

CSA and bullying contributed to the global disease burden. Action is needed to develop effective policies. Our study provides policymakers with up-to-date and comprehensive information.

Background: Previous research has examined to what extent the relationship between bullying/cyberbullying (victims and perpetrators) and psychological well-being is mediated by different cognitive-emotional variables. Objectives: The present study aimed to analyze whether mental toughness acted as a mediating variable in the relationship between bullying, suffered and perpetrated, and subjective vitality. Methods: Three hundred and twelve students in their final year of Primary Education and Compulsory Secondary Education, aged between 11 and 17 years, gave their responses to different self-report measures. Results: The results showed that perceived mental toughness significantly mediated the relationship between victimization and perpetration of aggressive acts through the use of electronic devices and levels of subjective vitality. A similar mediating effect was observed for occasions when the adolescent engaged in bullying acts during face-to-face interactions. Conclusions: It is concluded that high levels of mental toughness may act as a protective mechanism, reducing or mitigating the loss of subjective vitality resulting from being victimized in a virtual environment, as well as from perpetrating aggressive acts during face-to-face interactions and through the use of technological media.

This study aimed to correlate exposure to oxytocin during childbirth with behavioral determinants in teenage students. The Barratt Questionnaire (BQ), the Buss and Perry Aggression Questionnaire (BPAQ) and the Bryant Empathy Index (BEI), respectively measured impulsivity, aggression and empathy; the results were correlated with the roles of school bullying through the Velásquez and Pineda scale. Mothers were asked about birth circumstances. A total of 401 students were included (mean age 12 ± 1 years, 53,9 % were male, 53,3 % were attending a public school). 41,9 % of students had exogenous oxytocin exposure, 40,1 % had physiological oxytocin exposure, and 18 % had no oxytocin exposure. Regarding bullying, 75,1 % of students were classified as observers, 14,2 % were classified as victims, 6 % were classified as intimidators and 4,7 % exhibited an indifferent role. The mean value of the BPAQ was 78 ± 19, for the BEI was 78 ± 10 and for the BQ was 60 ± 10; all values were considered high. There were no significant differences among the type of delivery, sex and bullying roles or the type of delivery, aggressiveness and impulsivity according to sex; however, males had significantly lower empathy scores. There was no significant association between the type of delivery and the risk of assuming a bullying role. A regression model showed a significant association between attending a private school and a lower risk of developing a victim or intimidator role. This study could contribute to a better understanding of the processes involved in behavioral and emotional outcomes after birth, which can help to design prevention strategies to address increasing mental health problems in youth. Furthermore, this study could help emphasize the importance of promoting physiological delivery and find evidence that helps the scientific community design new work to deepen the relationship between oxytocin and behavior.

This study examined the sequential mediating roles of anxiety and depressive symptoms in the effect of school bullying victimization on suicidal ideation. This study utilized a convenience sample of college students across South Korea, and an online survey was conducted. This quantitative research analyzed data collected from 1037 participants. The sample consisted of an equal gender distribution, with a mean age of 23.65 years (range: 18-30). Additionally, 30% of participants reported a household income of four million won or less (approximately USD $3076). More than half of the participants' parents had attained a college education or higher. Also, multiple mediation analyses were conducted to examine whether anxiety and depressive symptoms mediated the relationship between school bullying victimization and suicidal ideation. In the results, multiple mediation analyses showed that school bullying victimization does not have a direct effect on suicidal ideation. On the other hand, school bullying victimization has an indirect effect on suicidal ideation through anxiety and depressive symptoms, controlling for covariates. Based on these research results, implications for school bullying prevention and intervention were discussed.

Bullying behaviors and conduct problems are two forms of antisocial behavior that frequently co-occur in childhood. However, it remains unclear whether their developmental trajectories are distinct and the extent to which different aspects of cognitive functioning account for their development. We aimed to disentangle the developmental trajectories of bullying behaviors and conduct problems, test their interrelations across childhood, and assess associations with children's early cognitive functioning (executive functions, intelligent quotient [IQ], and theory of mind). Participants included 2,232 children from the Environmental Risk (E-Risk) Longitudinal Twin Study. We performed dual group-based trajectory modeling on combined parent and teacher reports of children's bullying behaviors and conduct problems at 5, 7, 10, and 12 years. We assessed associations with age 5 cognitive functioning using regression analyses. We identified five developmental trajectories for bullying behaviors and four for conduct problems. The developmental course of both behaviors was interrelated most strongly among those with high levels. A subgroup of children was likely to transition from conduct problems to bullying behaviors as they got older. Lower IQ was associated with both antisocial behavior trajectories, whereas lower theory of mind was only associated with conduct problems trajectories. The developmental course of bullying behaviors and conduct problems is distinct but linked across childhood. Interventions targeting bullying behaviors or conduct problems could benefit from more integration and should take into account children's cognitive functioning. (PsycInfo Database Record (c) 2025 APA, all rights reserved).

In today's digital age, cyberbullying has emerged as a pervasive issue that affects individuals across various social media platforms and digital communication channels. This review explores the developmental trajectory of cyberbullying as an interdisciplinary academic field, employing a unique combination of co-word analysis and main path analysis (MPA) across a substantial body of 5183 documents. This integrated methodological approach allows for a nuanced examination of the evolution of themes and influential works within the realm of cyberbullying research. The findings highlight a complex landscape where initial focus areas, such as the behavioral and psychological triggers of cyberbullying, progressively expand towards exploring effective preventive measures and intervention strategies. Key themes identified include the impact of digital literacy, the dual role of social media as both a vector and a tool against cyberbullying, and the potential of technological advancements in detecting and mitigating cyberbullying. This comprehensive mapping and analysis deepens our understanding of cyberbullying and highlights the dynamic nature of this field, suggesting new directions for future research and practical applications to effectively address cyberbullying across various social and technological contexts. This study represents a pioneering effort in synthesizing a broad spectrum of research to offer detailed insights into the changing dynamics of cyberbullying, marking a significant contribution to both academic knowledge and practical approaches to handling cyberbullying.

Bullying and cyberbullying are critical global issues that significantly affect the mental health and behavioral well-being of youth. This article explores the complex challenges posed by these forms of aggression and introduces a strength-based model for health and mental health professionals to address these issues with impacted youth holistically. Grounded within findings from a scoping review of the literature, the SHIELD framework emphasizes Strengths, Healing, Interventions, Empowerment, Learning, and Development, offering a comprehensive approach for identifying and supporting youth impacted by bullying and cyberbullying. SHIELD emphasizes collaboration among health professionals, schools, families, and communities. By integrating empirical evidence and best practices from school-based approaches to bullying prevention, such as Positive Behavioral Interventions and Support (PBIS) and Social and Emotional Learning (SEL), this framework provides a roadmap for creating safer, more inclusive environments for youth while prioritizing their mental health and overall well-being in the face of bullying and cyberbullying. A case study illustrates the framework's practical application and future directions are proposed to guide further empirical investigation and stimulate innovative approaches to addressing the complexities of bullying and cyberbullying.

Early life exposure to adversity and stress has been shown to sensitize young people to later negative life events (LEs), leading to increased susceptibility to mental health problems. We explored this question by testing whether exposure to severe institutional deprivation moderated the effect of adolescent exposure to LE on early adult depression and anxiety. To test the specificity of these effects, we contrasted the effects on these outcomes with neuro-developmental problems (autism and disinhibited social engagement), known from previous studies to be associated with deprivation from early childhood.

Participants were 170 adoptees from the English and Romanian Adoptees study. Of these, 124 (66 females) grew up as infants and small children in severely depriving Romanian orphanages before being adopted into UK families before the age of 43 months. The remainder were UK adoptees (16 females) with no history of deprivation who were placed before the age of 6 months. For this analysis, data on emotional problems, autism, and disinhibited social engagement were used at both age 15 years and in early adulthood (23-25 years) using standardized questionnaire and interview measures. Exposure to independent, dependent, and peer-related LE was measured at age 15 years.

In all models, there were continuities in all outcomes between adolescence and adulthood (ps < .05). Dependent LE had a main effect on emotional symptoms, with higher exposure to dependent LE predicting an increase in emotional symptoms between age 15 and young adulthood. For independent and dependent LE, there were no interactions between deprivation and LE. For peer-related LE, the interaction was significant for emotional problems, but not deprivation-specific problems (i.e., autism/disinhibited social engagement)-the group of individuals exposed to early extreme deprivation and elevated peer-related LE had elevated emotional problems.

There was no evidence that early severe institutional deprivation increased susceptibility to depression and anxiety following exposure to independent or dependent LE in general. However, it appeared to sensitize adolescents to the effects of peer-related LE specifically. We discuss possible mechanisms by which difficulties in peer relations might influence the emergence of depression and anxiety to already vulnerable individuals.

Bullying victimisation is an increasing global health problem among adolescents and is associated with short- and long-term adverse mental health outcomes. Investigating whether associations with mental health vary across national contexts and why, can provide insights into mechanisms underlying those associations and inform policy. We used data from 479,685 adolescents participating in the 2018 Program for International Student Assessment (PISA) cross-sectional survey and examined whether the associations between bullying victimisation, psychological distress and life satisfaction vary across 63 countries. We further tested the modifying role of country-level factors - bullying prevalence, income inequality and national wealth, by implementing multilevel cross-country analyses. We found significant associations between bullying victimisation, increased psychological distress (β = 0.181; 95%CI: 0.178, 0.184) and decreased life satisfaction (β = -0.158; 95%CI: -0.162, -0.155). Associations between bullying victimisation, psychological distress and life satisfaction among adolescents were consistent across countries in terms of direction but effect sizes varied substantially. The effects ranged from β = 0.08 in the Philippines to β = 0.40 in South Korea for psychological distress and from β = -0.05 in the Philippines to β = -0.36 in the United Kingdom for life satisfaction. In addition, consistent with the "healthy context paradox" effect, associations between bullying and mental health were larger in countries where the prevalence of bullying was lower, as well as in higher-income countries. Interventions aiming to reduce bullying victimisation should aim to provide additional targeted support for those who still experience bullying after the intervention.

Research on bullying in Indonesia remains limited, revealing significant gaps in understanding its prevalence and underlying factors specific to the Indonesian context. This study addresses these gaps through a three-pronged approach: (a) assessing the prevalence of poly-bullying victimisation, (b) identifying factors associated with poly-bullying experiences, and (c) evaluating subjective well-being (SWB) in cases of poly-bullying by comparing it with uninvolved children. Cummins' theory of SWB homeostasis was employed to interpret the findings. The study included 10,051 children aged 10 and 12 years (50% girls) who reported experiencing poly-bullying in the past month. Data were analysed using descriptive statistics and linear regression. Poly-bullying was measured across five indicators: physical, verbal, and emotional bullying by siblings and other children at school. The analysis considered five independent variables: sociodemographic factors, perceptions of family, friends, and school, and reported fights among students. The results were statistically significant (p < 0.000), though the model explained only 5.1% of the variance in poly-bullying victimisation. Poly-bullying was prevalent in both public and non-religious schools. Significant contributors included the frequency of fights among students (β = 0.129) and the belief that friends would help (β = 0.045). The study's implications for preventing poly-bullying victimisation were also discussed.

Previous research has provided clues to the association between bullying victimization, non-suicidal self-injury (NSSI), and psychotic-like experiences (PLEs). However, these studies have been limited in their failure to examine both the directions of the associations and the underlying mediating mechanisms. Furthermore, there has been little investigation into the longitudinal associations among these variables in rural adolescents. This study aimed to address the aforementioned limitations by examining the bidirectional associations and the potential mediating mechanisms among bullying victimization, NSSI, and PLEs in a sample of Chinese rural adolescents. A total of 526 junior middle school students (42.6% males; average age = 14.62, SD = 1.15, age range = 12 to 16 years old) from a rural county in Guangdong province, China were recruited and assessed at three time points spanning one year. Cross-Lagged Panel Models (CLPMs) were employed to investigate the prospective focal longitudinal associations. CLPMs revealed that notable reciprocal associations were observed between bullying victimization and NSSI, as well as between NSSI and PLEs. Moreover, PLEs at Time 1 significantly predicted bullying victimization at Time 2. Additionally, only the indirect path from Time 1 PLEs to Time 3 bullying victimization via Time 2 NSSI was significant. This study sheds light on the bidirectional associations and underlying mediating mechanisms among bullying victimization, NSSI, and PLEs in rural adolescents. The findings highlight the importance of considering the complex interplay between these factors and the need for targeted interventions to address the mental health concerns in this population.

Exposure to adversity during childhood is associated with elevated risk for commonly occurring forms of psychopathology, especially psychotic disorders. Despite the noteworthy consequences associated with adverse childhood experiences, an inconsistent and unpredictable number of at-risk populations present with remarkably good physical and mental health outcomes that can be attributed to resilience. This study aimed to qualitatively explore the experience of childhood adverse events and coping strategies employed by individuals that promote resilience and better mental health outcomes.

Fourteen individuals with a history of childhood adversity were recruited to participate using a case-study approach. A semi-structured interview guide was developed based on empirical evidence and theoretical background, and the interviews were analysed using a reflexive thematic approach.

Our findings showed that the type of adversity impacted the experience of trauma, for example, the death of a caregiver versus emotional abuse or witnessing violence at home. Five coping strategies were identified (social support, religious coping, problem or emotion-focused coping, and meaning-making), with healthy controls found to identify and use these resources more than the psychosis group to promote individual well-being and better mental health outcomes.

Our findings provide insights into experiences in the aftermath of childhood adversity, emphasising the need to assess the history of trauma systematically. They further underscore the importance of mental health prevention programmes bolstering individual-level coping strategies and the resources available within our environments to help them manage adversity, improve overall outcomes, and promote resilience.

Bullying has become a worldwide concern, and is particularly serious in vocational high schools in China. The bullied students typically resort to coping strategies to mitigate its adverse consequences. However, there is a lack of research on which bullying coping strategies might mitigate the negative effects of bullying on students and which types of classroom discipline management might play a moderating role. The participants were 1483 students from a vocational high school. The Olweus Bully/Victim Questionnaire was used to identify 251 students who had experienced bullying. The results showed that: cognitive distancing significantly negatively predicted the externalizing problems of bullied students, while revenge seeking significantly positively predicted their externalizing problems. Seeking adult support and cognitive distancing significantly and negatively predicted the internalizing problems, while passive coping significantly positively predicted their internalizing problems. Discipline management played a moderating role in the relationship between coping strategies and externalizing problems. These findings suggest that seeking support from teachers and parents through open communication is encouraged, as it was shown to reduce internalizing problems. While cognitive distancing may offer temporary relief, revenge seeking and passive coping had detrimental effects on externalizing or internalizing problems. Positive disciplinary management mitigated externalizing problems for bullied students who used passive coping. However, punitive management potentially exacerbated externalizing problems for students who sought revenge. Furthermore, SEL programs only benefited those with low levels of passive coping. Special attention needs to be paid to bullied students who use passive coping or seek revenge, and guide them toward more adaptive responses.

This study tested to what extent the relation between bullying victimization and future symptoms of depression could be explained by victims being more hostile and less assertive than non-involved individuals. Data came from waves 2-4 of the Dutch TRacking Adolescents' Individual Lives Survey (TRAILS). Participants' bullying experiences were assessed at age 13, interpersonal style at age 16, and depression symptoms at age 19. Mediation analyses were performed primarily on 274 self-reported victims and 1498 non-involved peers. Self-reported victims had an increased risk for depression symptoms. About a third of that risk could be explained by victims' hostile style, which was also higher than those of non-involved peers. Although victims also reported lower levels of assertiveness than non-involved peers, this interpersonal style did not mediate the link between bullying victimization and depression. Our findings suggest that high hostility, but not low assertiveness, partly explains the increased depression risk of self-reported victims. Therefore, interventions could focus on addressing hostility, to help reduce the likelihood that adolescents who have experienced bullying victimization will have more interpersonal conflicts and mental health problems in the future. Supplementary materials also include analyses for bullies and bully-victims, and for peer-reported measures.

While it is increasingly acknowledged that conduct problems and peer problems often co-occur in development, less is known about the ways in which peer problems may alter the developmental course of conduct problems for distinct subgroups.

Using data from a large population-based study in Norway (the Bergen Child Study/youth@hordaland; 47.4% males), we estimated group-based trajectories of conduct problems and the presence of time-varying peer problems on the developmental progression of conduct problems between seven and 19 years of age. Risk factors for group membership were also examined.

A 3-group model of conduct problems best fit the data (non-engagers, low-engagers, moderate-stable). The presence of peer problems increased the estimated level of conduct problems for both the low-engagers and moderate-stable groups across adolescence. No differences in conduct problems were observed when peer problems were present in childhood or preadolescence for these two groups, nor for the non-engagers group at any point. Being male, having lower perceived economic wellbeing, and lower levels of parental education predicted group membership for the moderate-stable group, whilst lower paternal education predicted membership for the low-engagers group.

Support for developmental 'turning points' was found, suggesting that adolescence is a particularly salient time for those with conduct problems. In particular, the presence of peer problems can increase observed conduct problems at this stage in development.

Social touch promotes psychological well-being through inducing positive effects on social affiliation and stress alleviation, especially in adolescence. However, there is a scarcity of instruments available for evaluating adolescents' attitude toward social touch in China. The present study aimed to investigate the validity and reliability of the Social Touch Questionnaire (STQ) in Chinese adolescents. A total of 2839 high school students were enrolled, ranging in age from 11 to 19 years. The dimensions of the scale were conducted by exploratory factor analysis, and validated by confirmatory factor analysis. A three-factor model showed the best fit and consisted of the following subgroups: liking of informal social touch, liking of general social touch, and dislike of social touch. Furthermore, positive associations were found between social touch and interaction anxiety, fear of negative evaluation, depressive and anxiety symptoms, and sleep quality. Short-term prediction of dislike of social touch in anxiety symptoms was determined, while no significant predictor of depressive symptoms was found. The STQ demonstrates reliability and validity as a self-report questionnaire designed to assess behaviors and attitudes toward social touch. It effectively adapts to the nuances of the Chinese context among adolescents.

Bullying among adolescents is a significant public health concern worldwide. While child maltreatment (CM) is a known risk factor, few studies explore whether abused adolescents become bullies or victims and how CM affects day-to-day bullying/victimization. Existing research often uses cross-sectional and longitudinal designs with long intervals, failing to capture the dynamic nature of adolescence and bullying behaviors.

Based on personality solidification theory, the study used a weekly diary method to examine the relationship between adolescents' CM and weekly bullying/victimization, as well as the mediating mechanisms of the Big Five personality traits.

452 students (167 girls, Mage = 12.90, SDage = 0.48) from a junior high school in southern China participated in a 7-week diary study.

After participants finished all questionnaires, multilevel models were constructed to analyze weekly diary data.

The findings indicated that CM positively predicted adolescents' weekly bullying/victimization, both directly and indirectly, through personality traits. Specifically, CM predicted weekly bullying through openness, conscientiousness, and neuroticism, while it also forecasted weekly victimization through neuroticism.

CM had long-term adverse effects on adolescents' day-to-day bullying and victimization through the solidification of personality, which may provide significant theoretical and empirical foundations for the prevention of bullying in schools.

Numerous studies have explored the association between social anxiety and bullying victimization. However, inconsistency are found regarding the strength and the direction of this relationship. Moreover, it remains unclear how different subtypes of bullying victimization associate with social anxiety.

The purpose of this study was to conduct a meta-analysis to systematically investigate the cross-sectional and longitudinal relationships between social anxiety and bullying victimization.

Individuals experiencing social anxiety and bullying victimization.

The present study employed three-level random effects model to combine the correlation coefficients r to indicate the strength of the cross-sectional association between social anxiety and bullying victimization. Cross-lagged regressions were utilized to examine the prospective relationship between both variables.

A total of 133 cross-sectional studies reporting 220 effect sizes were included in the meta-analysis, and the results showed a significant moderate association between social anxiety and bullying victimization (r = 0.268, 95 % CI [0.244, 0.292]). Nineteen longitudinal studies were also identified, revealing that social anxiety at Time 1 significantly predicted bullying victimization at Time 2 (β = 0.067, 95 % CI [0.038, 0.096]). However, bullying victimization did not significantly predict subsequent social anxiety (β = 0.012, 95 % CI [-0.026, 0.049]). Subgroup analyses revealed that social anxiety had the strongest association with relational victimization (r = 0.382, 95 % CI [0.335, 0.430]), followed by reputational victimization (r = 0.254, 95 % CI [-0.171, 0.337]), physical victimization (r = 0.226, 95 % CI [0.144, 0.308]) and overt victimization (r = 0.202, 95 % CI [0.146, 0.257]). Social anxiety was significantly more associated with traditional bullying victimization (r = 0.281, 95 % CI [0.233, 0.328]) than cyberbullying victimization (r = 0.177, 95 % CI [0.137, 0.218]; p < 0.001).

Social anxiety was found to be moderately associated with and prospectively predict bullying victimization. Future research and interventions could focus on reducing social anxiety to prevent bullying victimization.

Non-suicidal self-injury (NSSI) refers to the deliberate harm inflicted upon one's own body without any suicidal intent. Adolescence is a period of heightened incidence of self-injurious behavior, often accompanied by anxiety and depression, topics of significant interest to researchers. Upon reviewing and synthesizing existing literature, it becomes evident that childhood trauma serves as a crucial influencing factor in NSSI. Such behavior not only detrimentally impacts the individual's physical and mental well-being but also exerts negative repercussions on their family and society at large. Despite this, there remains a scarcity of intervention studies focusing on individuals with a history of childhood trauma who engage in NSSI. The aim of this study is to investigate the impact of childhood trauma on adolescent NSSI and to elucidate the underlying mechanism of NSSI formation.

In accordance with the specified inclusion and exclusion criteria, a total of 158 subjects who met the eligibility criteria were surveyed through a questionnaire. The participants underwent assessment using a range of questionnaires, including general demographic information, the Adolescent Non-suicidal Self-injury Assessment Questionnaire (ANSAQ), the Toronto Alexithymia Scale (TAS-20), the Hamilton Depression Scale (HAMD), the Hamilton Anxiety Scale (HAMA), and the Acceptance and Action Questionnaire Second Edition (AAQ-II).

The impact of childhood trauma on NSSI is found to be influenced by two mediators: direct mediation through experiential avoidance and indirect mediation through a chain involving alexithymia and experiential avoidance.

Alexithymia and experiential avoidance are identified as playing a sequential intermediary role in the relationship between childhood trauma and NSSI.

Children with developmental language disorder (DLD) experience higher levels of peer victimization than their peers. However, it is not known if such associations reflect genetic and environmental confounding. We used a co-twin control design to investigate the association of language difficulties (DLD and separately poor pragmatic language) with peer victimization and compare the developmental trajectories of peer victimization across adolescence for those with and without language difficulties.

Participants were 3,400 pairs of twins in the Twins Early Development Study (TEDS), a UK-based population birth cohort. Language abilities were assessed via online tests at age 11 and peer victimization was self-reported at ages 11, 14 and 16. Language difficulties were defined as language abilities at least -1.25 SD below the mean of the TEDS sample. We performed linear regressions and latent growth curve modeling at a population level and within monozygotic and same-sex dizygotic twin pairs.

At population level, youth with DLD experienced higher levels of peer victimization at ages 11 (β = 0.27, 95% Confidence Interval (CI) 0.20-0.35), 14 (β = 0.15, 95% CI 0.03-0.27) and 16 (β = 0.17, 95% CI 0.03-0.32) and a sharper decline in peer victimization between ages 11 and 16 compared to their peers without DLD. The associations between DLD and peer victimization were reduced in strength and not statistically significant in within-twin models. Moreover, there was no difference in the rate of change in peer victimization between twin pairs discordant for DLD. Results were similar for the association of poor pragmatic language with peer victimization.

Associations between language difficulties (DLD and separately, poor pragmatic language) and peer victimization were confounded by genetic and shared environmental factors. Identifying specific factors underlying these associations is important for guiding future work to reduce peer victimization among adolescents with language difficulties.

Bullying is one of the most common forms of youth violence and is associated with myriad adverse consequences over the life course. There has been increasing interest in examining whether anti-bullying legislation is effective in preventing bullying victimization and its negative effects. However, a lack of data structures that comprehensively and longitudinally assess anti-bullying legislation and its provisions has hampered this effort. We provide 18 years of data (1999-2017) on anti-bullying legislation and amendments across 50 U.S. states and the District of Columbia, which we are making publicly available at LawAtlas.org. This article describes how the legal content analysis was conducted, provides information on the reliability of the coding, and details provisions of the legislation that were coded, such as funding provisions and enumerated groups (a total of 122 individual codes are provided). Over 90% of states had at least one amendment to their legislation during this 18-year period (range: 0-22; Mean = 6.1), highlighting both the evolving content of anti-bullying statutes and the importance of tracking these changes with longitudinal data. Additionally, we offer illustrative examples of the kinds of research questions that might be pursued with these new data. For instance, using survival analyses, we show that a variety of state characteristics (e.g., political leaning of state legislatures) predict time to adoption of key provisions of anti-bullying legislation (e.g., the comprehensiveness of legal provisions). Finally, we end with a discussion of how the dataset might be used in future research on the efficacy of anti-bullying legislation.

Although studies in China have found that school bullying is prevalent among adolescents, most relevant research has focused on southern China, while research in northern China is limited. This study aimed to explore ethnic disparities in the socio-demographic determinants of school bullying in Inner Mongolia, a northern region of China.

A cross-sectional study was conducted among 2891 adolescents in Inner Mongolia, China, from September to December 2022. Data on participants' sociodemographic characteristics and school bullying experiences were collected through questionnaires. Multivariate logistic regression analyses, stratified by ethnicity, were employed to examine factors associated with school bullying. Furthermore, subgroup analyses and interaction tests were conducted to explore potential effect modifiers of the relationship between ethnicity and bullying.

The prevalence of school bullying was 18.99 % (549/2891) overall, with 17.96 % (420/2339) among Han and 23.37 % (129/552) among ethnic minorities. Minority adolescents faced a higher risk of bullying compared to Han (OR = 1.35, 95 % CI: 1.08-1.69, P < 0.05). Middle school students were more vulnerable to bullying than high school students (OR = 1.25, 95%CI:1.03-1.52, P < 0.05). Among Han adolescents, having a mother with high school education was protective against bullying (OR = 0.71, 95 % CI: 0.54-0.93, P < 0.05), while it was an associated factor for minorities (OR = 2.06, 95%CI:1.23-3.46, P < 0.05). Good family economic status was an associated factor for bullying among Han (OR = 1.62, 95%CI: 1.11-2.36, P < 0.05), but not among minorities. Belonging to other family structures (remarriage/foster family, intergenerational families, live with relatives and elders) was an associated factor for minorities (OR = 2.60, 95 % CI: 1.37-4.92, P < 0.05), but not for Han. Subgroup analyses revealed significant ethnic disparities in bullying experiences among middle school students, those from nuclear family, other family, and fair economic backgrounds (all P < 0.05). Interaction effects between ethnicity and these variables were not significant (all P > 0.05).

This cross-sectional study has limitations in establishing causal relationships between identified associated factors and school bullying.

Ethnic minority adolescents in Inner Mongolia, China, especially middle school students, face a higher risk of school bullying than their Han peers. The differential impact of maternal education, family economic status, and family structure on bullying risk between Han and minority adolescents underscores the need for culturally sensitive, targeted interventions that consider the unique challenges faced by ethnic minority students.

The main objective of this meta-analysis was to investigate how modifiable parental factors are related to traditional and cyberbullying victimization in children and adolescents. A systematic literature search of modifiable parental factors associated with bullying victimization was conducted using PubMed, PsycINFO, Scopus, and Web of Science electronic databases. Meta-analyses were performed to assess the mean effect sizes of the associations between the broader categories of parental factors (risk and protective) and bullying victimization (traditional and cyber), as well as between specific parental factors and bullying victimization (traditional and cyber). The differential impact of maternal and paternal factors (risk and protective) was examined. Age and gender were tested as moderators. Out of the 13,171 records identified, 158 studies met the inclusion criteria. Larger evidence was found for the association between parental risk (i.e., authoritarian parenting, aversiveness, inter-parental conflict, over-involvement, permissive parenting, and withdrawal) and protective (i.e., authoritative parenting, autonomy granting, warmth, and monitoring) factors, respectively, and traditional bullying victimization, with parental warmth, aversiveness, and withdrawal being the only common related predictors for traditional and cyberbullying victimization. The effect sizes were generally small. Maternal and paternal factors showed similar patterns of association with both types of bullying victimization. Age had a moderating effect on the association between parental protective factors and cyberbullying victimization. Overall, the present findings suggest that parental factors are relevant in protecting or putting children at risk for bullying victimization, especially in the offline context.

To investigate the prevalence of, and relationship between, bullying and malocclusion in schoolchildren aged 10-14 years in the South East of the UK.

Cross-sectional cohort study.

Sixteen primary and secondary schools in South East of the UK.

Schoolchildren aged 10-14 years who were consented to participate.

The prevalence and nature of bullying were measured using a questionnaire. Traits of malocclusion and the need for orthodontic treatment were assessed by clinical examination and determined by the Index of Orthodontic Treatment Need (IOTN) Dental Health (DHC) and Aesthetic components (AC).

Complete data were collected for 698 participants. The number defined as being bullied was 68 (9.7%). There was no difference in the prevalence of bullying between gender, ethnicity or age. Higher rates of bullying were reported in mixed sex schools (P = 0.03). Participants with an increased overjet (P = 0.02) and/or a greater need for treatment, as measured by IOTN DHC (P = 0.01) and AC (P = 0.01), reported higher rates of bullying. While there was no difference in the overall prevalence of bullying between genders, boys were more likely than girls to experience physical bullying (P <0.001) and being called names (P = 0.03).

A significant relationship was evident between being bullied and certain traits of malocclusion.

School violence, in particular bullying by peers, has become a problem on the public agenda. In the context of bullying, children exposed report high levels of shame and guilt which increase victimization since involves a humiliating experience associated with the lack of acceptance by the peer group and can negatively affect mental health. Both emotions have been previously studied in peer violence context. Now we aim to examine resilience as a potential factor to alleviate shame and guilt in school bullying. We conducted a study to test if resilience mediates the feeling of shame and guilt effect of being exposed to bullying; that is, if resilience entails protective behaviors that favour the dissipation of the risk of feeling shame and guilt when exposed to direct violence in school. First, we adapted to Mexican Spanish the research instrument Short Version of the State Shame and Guilt Scale (SSGS-8, Cavalera et al., 2017)-; then we conducted a quantitative, explanatory, cross-sectional approach study; both were carried out in two different non-urban high schools near the city of Monterrey, Mexico, randomizing groups. We found through a moderated mediation analysis that resilience is a key piece to transform shame and practically alleviate negative school violence consequences the indirect effect of resilience on the relationship between direct violence in school and shame was moderated by gender, better for boys than for girls. As its presence restrain shame in those who have been exposed to direct violence in school, it is important to strengthen resilience in adolescents. Promoting the development of shame resilience in adolescents is crucial to prevent them from questioning whether something is wrong with them when exposed to violence. We must continue making efforts to eradicate violence in schools through prevention programs and public policies.

Peer defending has been shown to protect bullied peers from further victimization and social-emotional problems. However, research examining defending behavior has demonstrated positive and negative social-emotional adjustment effects for defending students themselves. To explain these mixed findings, researchers have suggested that associations between defending behavior and social-emotional adjustment may be buffered by protective factors (i.e., defender protection hypothesis) or exacerbated by vulnerability or risk factors (i.e., defender vulnerability hypothesis). Consistent with these hypotheses, the present study aimed to investigate whether relationships with teachers and peers would moderate the association between defending behavior and social-emotional adjustment. This three-wave longitudinal study examined the association between peer nominated defending behavior and later self-reported depressive symptoms and self-esteem in 848 Belgian students in Grades 4-6 (53% girls; Mage = 10.61 years, SD = 0.90 at Wave 1). Peer nominated positive and negative teacher-student relationships (i.e., closeness and conflict) and peer relationships (i.e., acceptance and rejection) were included as moderators. Clustered multiple linear regression analyses demonstrated that defending behavior did not predict later depressive symptoms (β = -0.04, p = .80) or self-esteem (β = -0.19, p = .42). The lack of these associations could be explained by the defender protection and vulnerability hypotheses. However, contrary to our expectations, teacher-student closeness and peer acceptance did not play a protective role in the association between defending behavior and social-emotional adjustment (β = -1.48-1.46, p = .24-0.96). In addition, teacher-student conflict and peer rejection did not put defending students at risk for social-emotional maladjustment (β = -1.96-1.57, p = .54-0.97). Thus, relationships with teachers and peers did not moderate the association between defending behavior and later depressive symptoms and self-esteem.

Students around the globe still experience bullying daily. Teachers play a key role in supporting victimized students and they could do so using their classroom seating arrangement. Common teacher strategies are to separate victims and bullies and to seat victims close to supportive others, but research has not examined whether these strategies support victims' wellbeing. Therefore, the current study tested an intervention in which victims in experimental classrooms were seated far away from their bullies and next to their best friends, whereas a random seating arrangement was implemented in control classrooms. The underlying reasoning was that victims would experience a sense of safety next to their best friend and to limit bullies' opportunities to harass the victim. The outcomes were classroom comfort, internalizing problems, academic engagement, and victimization frequency. We used a sample of 1746 Dutch upper elementary school students (Mage = 10.21) of whom 250 students reported to be chronically and frequently victimized (Mage = 9.96 years). Ethical and practical reasons rendered the conditions similar regarding victims' distances to their bullies. Consequently, the intervention in the end tested the effect of victims sitting next to their best friend. Several mixed-effects models showed that no support was found for the effectiveness of this intervention. Additional exploratory analyses testing the effect of victims' continuous distances to their bullies on their wellbeing also found no effects. These findings suggest that changing victims', bullies', and best friends' seats do not improve victims' classroom wellbeing. Alternative explanations, directions for future research, and practical implications are discussed.

Preschool represents the budding and initial stage of bullying behavior, where perpetration of physical bullying predominates as the primary form of bullying. An in-depth understanding of the factors linked to preschool physical bullying behavior is crucial for enabling early prevention and intervention strategies.

The purpose of this study was to examine the relationship between Theory of Mind and physical bullying behavior in 4-6 years old children in kindergarten and the mediating role of peer rejection and gender in this relationship.

Data on perpetration of physical bullying and peer rejection were obtained from 310 preschool children (age range = 52-79 months, M = 66.85, SD = 7.04) by the peer nomination method, and their Theory of Mind was measured by the Theory of Mind Development Scale.

The results showed that Theory of Mind negatively predicted perpetration of physical bullying in preschool children and that Theory of Mind was related to perpetration of physical bullying in preschool children only through peer rejection. Boys were also found to have a stronger association between peer rejection and perpetration of physical bullying in preschool children than girls.

Peer rejection may play a mediating role between Theory of Mind and perpetration of physical bullying in preschool children. In addition, the relationship between peer rejection and perpetration of physical bullying appears to be stronger for boys than for girls. This contributes to our understanding of the relationship between Theory of Mind and perpetration of physical bullying in preschool children and has implications for how bullying prevention and intervention can be tailored to the gender of young children.

Having no or few confidants is found to be associated with more severe mental health problems and a higher prevalence of depression in adults, but research examining this association in adolescents is scarce. Social relationships may be particularly critical during adolescence, as it is an important developmental period during which vulnerability to mental health problems increases. The present study examined the relationship between having no or few confidants and anxiety/depressive symptoms in adolescents.

Cross-sectional self-report survey targeting 7-12th grade students (age range: 12-18) was conducted in public junior and senior high schools in Mie and Kochi, Japan. Data from 17,829 students (49.7% boys) were analyzed. Associations between anxiety/depressive symptoms (12-item General Health Questionnaire; score range: 0-12) and the number of confidants (None, 1-3, or ≥ 4) were examined using multilevel regression analyses. The analyses were stratified by gender and school level (junior/senior high), and adjusted for experiences of being physically abused and bullied and the interactions of these experiences with the number of confidants.

Having no or 1-3 confidants was associated with more anxiety/depressive symptoms, compared to having ≥ 4 confidants (p < 0.001) in all stratified groups. Having no confidants was associated with more anxiety/depressive symptoms than having 1-3 confidants (p < 0.001); in senior high boys, no difference was observed between having no confidants and having 1-3 confidants. In addition, in senior high boys, victims of bullying who have confidants reported significantly less anxiety/depressive symptoms than the victims who have no confidants (p < 0.01).

Adolescents who had no or few confidants had more anxiety/depressive symptoms. Attention needs to be paid to better identify these adolescents, and avenues to support them need to be established.

This study examines whether the experience of being bullied at school has a long-term impact on three health outcomes in adulthood in Japan: subjective health, mental health, and activity restriction due to health conditions. We employed a random effects model and the Karlson-Holm-Breen method to decompose the total effect of being bullied at school on health inequality into a direct effect and an indirect effect working through intervening factors including education, marriage, economic well-being, and social networks. We used the Japanese Life Course Panel Surveys 2007-2020 (waves 1-14), a nationally representative panel data set that includes 2,260 male and 2,608 female respondents. The results demonstrate that for both men and women, the direct effect of being bullied at school was strong and significant. Bullying experiences in childhood had a long-term impact on health outcomes in adulthood, regardless of social background and mediating factors of education, marriage, economic well-being, and social networks. Bullying victimization increased the risk of poor subjective health, low mental health scores, and activity restriction due to health conditions. Intervening factors (especially economic well-being and friendship) mediated the association between bullying experiences and all health outcomes, but their contributions were modest. Policy measures not only to prevent bullying during childhood but also to alleviate its negative consequences in adulthood should be considered to help people who have encountered adverse childhood experiences.

Both late-life depression and childhood maltreatment have become major global public health issues, given their prevalence and social-economic and health consequences. However, previous studies have solely focused on the relationship of childhood maltreatment to average levels of depressive symptoms. The current study addresses this gap of knowledge by simultaneously examining the impacts of childhood intra- and extra-familial maltreatment on age trajectories of depressive symptoms in later life in the Chinese context.

Hierarchical linear models were applied to data from the China Health and Retirement Longitudinal Study (2011-2018, N = 12,669 individuals aged 45 to 80, comprising N = 43,348 person-years). Depressive symptoms were measured by the CES-D-10 scale. Childhood intra-familial maltreatments were measured by physical abuse and emotional neglect, while extra-familial maltreatment was measured by peer bullying. All analyses were conducted separately by gender in Stata 16.

Childhood extrafamilial peer bullying (β = 1.628, p < 0.001), and intrafamilial physical abuse (β = 0.746, p < 0.001) and emotional neglect (β = 0.880, p < 0.001) were associated with higher later-life depressive symptoms levels in the whole sample. Peer bullying differences in depressive symptoms widened with age for both men and women. Physical abuse differences in depressive symptoms remained stable over the life course among men but increased among women. Emotional neglect differences in depressive symptoms decreased with age among men, while it increased first and then decreased among women.

Findings in this study suggest that childhood maltreatment is not only associated with later-life poorer mental health but contributes to increasing inequalities in mental health as people age, especially among peer-bullying victims and women.

Epidemiological evidence shows a substantial increase in adolescent emotional problems in many countries, but reasons for this increase remain poorly understood. We tested change in emotional problems in a national sample of young people in Wales in 2013, 2017 and 2019 using identical symptom screens, and examined whether trends were accounted for by changes in youth friendship quality and bullying.

The present study of 230,735 11-16-year olds draws on repeat cross-sectional data obtained on three occasions (2013, 2017 and 2019) in national school-based surveys in Wales (conducted by the School Health Research Network). Emotional problems were assessed with a brief validated symptom screen (the SCL-4).

There was a significant increase in emotional problem scores between 2013 and 2019 (b[95% CI] = 1.573 [1.380, 1.765]). This increase was observed for all ages and was more pronounced for girls than boys (interaction b [95% CI] = 0.229 [0.004, 0.462]) and for young people from less affluent families (interaction b [95% CI] = -0.564[-0.809, -0.319]). Of the total sample, 14.2% and 5.7% reported frequent face-to-face and cyberbullying respectively. There were modest decreases in friendship quality and increases in rates of bullying between 2013 and 2019, but accounting for these changes did not attenuate estimates of the population-level increase in emotional problems.

This study provides evidence of a substantial increase in emotional problems among young people in Wales, particularly for young people from less affluent backgrounds. Changes in bullying or friendship quality did not explain this increase.

This is the first part of two documents prepared by experts for the Brazilian S20 mental health report. These reports outline strategies aimed at addressing the exacerbated mental health challenges arising from a post-pandemic world. Ongoing psychiatric epidemiology research has yielded evidence linking mental health with intricate social determinants, including gender, race/ethnicity, racism, socioeconomic status, social deprivation, and employment, among others. More recently, the focus has expanded to also encompass violence and social oppression. By prioritizing prevention and early intervention, harnessing technology, and fostering community support, we can mitigate the long-term impact of mental disorders emerging in life. Utilizing evidence-based practices and forging partnerships between the health and education sectors, S20 countries can promote health and safety of their student population, thereby paving the way for a more promising future for the next generations. The first document focuses on addressing the mental health concerns of vulnerable populations, catering to the needs of children, youth, and aging populations, assessing the current state of alcohol and drug addictions, scaling up psychosocial interventions in primary care, exploring the potential integration of health and educational systems, and emphasizing the imperative adoption of human rights in mental health policies.

Risk factors for psychological distress among help-seeking youth are poorly understood. Addressing this gap is important for informing mental health service provision. This study aimed to identify risk factors among youth attending Jigsaw, a youth mental health service in Ireland. Routine data were collected from N = 9,673 youth who engaged with Jigsaw (Mean age = 16.9 years, SD = 3.14), including presenting issues, levels of psychological distress, age, and gender. Confirmatory Factor Analysis identified thirteen factors of clustering issues. Several factors, including Self-criticism and Negative Thoughts, were strongly associated with items clustering as psychological distress, however these factors were poorly predictive of distress as measured by the CORE (YP-CORE: R2 = 14.7%, CORE-10: R2 = 6.9%). The findings provide insight into associations between young people's identified presenting issues and self-identified distress. Implications include applying appropriate therapeutic modalities to focus on risk factors and informing routine outcome measurement in integrated youth mental health services.

This study's aim was to examine whether there are negative increasing cycles of peer victimization and rejection sensitivity over time. Drawing from Social Information Processing Theory, we hypothesized that victimization leads to higher levels of rejection sensitivity, which would put adolescents at risk for higher future victimization. Data were collected in a four-wave study with 233 Dutch adolescents starting secondary education (Mage = 12.7 years), and a three-wave study with 711 Australian adolescents in the last years of primary school (Mage = 10.8 years). Random-intercept cross-lagged panel models were used to disentangle between-person from within-person effects. In each sample, a significant between-person association was found: adolescents with higher levels of victimization as compared to their peers also reported higher levels of rejection sensitivity. At the within-person level, all concurrent associations between individual fluctuations of victimization and rejection sensitivity were significant, but there were no significant cross-lagged effects (except in some sensitivity analyses). These findings demonstrate that victimization and rejection sensitivity are interrelated, but there may not be negative victimization-rejection sensitivity cycles during the early-middle adolescent years. Possibly, cycles establish earlier in life or results are due to shared underlying factors. Further research is needed examining different time lags between assessments, age groups, and contexts.

Most studies examining the impact of bullying on wellbeing in adulthood rely on retrospective measures of bullying and concentrate primarily on psychological outcomes. Instead, we examine the effects of bullying at ages 7 and 11, collected prospectively by the child's mother, on subjective wellbeing, labour market prospects, and physical wellbeing over the life-course. We exploit 12 sweeps of interview data through to age 62 for a cohort born in a single week in Britain in 1958. Bullying negatively impacts subjective well-being between ages 16 and 62 and raises the probability of mortality before age 55. It also lowers the probability of having a job in adulthood. These effects are independent of other adverse childhood experiences.

Social Safety Theory predicts that socially threatening experiences such as bullying degrade mental health partly by fostering the belief that others cannot be trusted. Here we tested this prediction by examining how peer bullying in childhood impacted adolescent mental health, and whether this effect was mediated by interpersonal distrust and several other commonly studied mediators-namely diet, sleep and physical activity-in 10,000 youth drawn from the UK's Millennium Cohort Study. Youth bullied in childhood developed more internalizing, externalizing and total mental health problems in late adolescence, and this effect was partially mediated by interpersonal distrust during middle adolescence. Indeed, adolescents who developed greater distrust were approximately 3.5 times more likely to subsequently experience clinically significant mental health problems than those who developed less distrust. Individual and school-based interventions aimed at reducing the negative impact of bullying on mental health may thus benefit from bolstering youths' sense of trust in others.

This study aimed to examine whether the moderating role of social support on the negative association between school-age bullying victimization and life satisfaction in middle-age was different by age of victimization.

A longitudinal study was conducted using data collected at the ages of 7, 11 and 50 years in the 1958 British birth cohort (N = 18,558). Frequency of bullying victimization (never, sometimes, or frequently) was assessed by parental interviews at ages seven and 11. A self-reported questionnaire assessed life satisfaction and perceived social support (instrumental and emotional) at age 50. To determine the moderating effect of social support on the association between bullying victimization and life satisfaction, hierarchical multiple linear regression analyses were conducted in which two interaction terms, victimization at age seven by social support and victimization at age 11 by social support, were simultaneously entered into the models.

Among 5304 respondents subjected to the statistical analysis, 34% had bullying victimization at age 7 years; 23% had bullying victimization at age 11 years. Instrumental support significantly buffered the effect of frequent victimization at age 11 (β = 0.03, p = 0.03) and significantly deteriorated the effect of frequent victimization at age 7 years (β = -0.04, p = 0.01), after adjusting for childhood confounders. No significant moderating effect was observed for emotional support.

Instrumental support in middle-age may more effectively buffer the effect of late school-age victimization than of early school-age victimization, while both effect sizes were small and additional research is needed.

Childhood trauma is not restricted to abuse or neglect and other potentially traumatic experiences need to be pondered in practice and research. The study aimed to collect validity evidence of a new measure of exposure to a broad range of potentially traumatic experiences, the Childhood Interpersonal Trauma Inventory (CITI), by evaluating whether the CITI provides important additional information compared to a gold standard measure of childhood trauma.

The sample consisted of 2,518 adults who completed the CITI and self-reported measures of trauma (Childhood Trauma Questionnaire; CTQ) and psychiatric symptoms (PTSD Checklist for DSM-5; Kessler Psychological Distress Scale; Dissociative Experiences Scale).

First, the sensitivity to properly detect participants having been exposed to childhood maltreatment, as measured by the CTQ (here used as the gold standard), ranged between 64.81% and 88.71%, and the specificity ranged between 68.55% and 89.54%. Second, hierarchical regressions showed that the CITI predicted between 5.6 and 14.0% of the variance in psychiatric symptoms while the CTQ only captured a very small additional part of variance (0.3 to 0.7%). Finally, 25% (n = 407) of CTQ-negative participants screened positive at the CITI. The latter reported higher severity of psychiatric symptoms than participants without trauma, suggesting that the CITI permits the identification of adults exposed to significant traumas that remain undetected using other well-validated measures.

The findings underscore the utility of the CITI for research purposes and the latter's equivalence to a gold standard self-reported questionnaire to predict negative outcomes.