The Independent and Cumulative Effects of Sibling and Peer Bullying in Childhood on Depression, Anxiety, Suicidal Ideation, and Self-Harm in Adulthood

Evaluating a maladaptive personality-informed model of social support and post-traumatic stress disorder

BACKGROUND

Social support is a robust predictor of post-traumatic stress disorder (PTSD). Although the inverse relationship between perceived social support and PTSD (social causation model) is supported, less is understood about the antecedents of the social causation model. Further, there is limited research in non-Western psychiatric populations that experience elevated rates of trauma and PTSD (e.g., mood disorders). The present study evaluated whether cumulative traumatic life events influenced current PTSD symptoms through maladaptive personality traits and perceptions of social support among Asian patients with mood disorders.

METHODS

A total of 200 Asian patients (77.5 % Chinese) with mood disorders were assessed for maladaptive personality traits, perceptions of social support, cumulative traumatic life events, PTSD, and depressive symptoms. Structural equation modelling was conducted to evaluate the extended social causation model.

RESULTS

The extended social causation model demonstrated acceptable fit to the data (Comparative Fit Index [CFI] = 0.90; absolute Root Mean Square Error of Approximation [RMSEA] = 0.08). There were significant indirect effects of cumulative traumatic life events on current PTSD symptoms (β = 0.29, p < .001; 85 % variance explained) and depressive symptoms (β = 0.28, p < .001; 69 % variance explained).

LIMITATIONS

Results may not be generalizable beyond the Singapore population due to the socio-cultural and environmental context.

CONCLUSIONS

The present findings provide conceptual support for a maladaptive personality-informed model of social support and PTSD, which could better inform trauma-focused interventions in preventing and treating the debilitating effects of PTSD in psychiatric populations.

Sibling and School Bullying Victimization and Its Relation With Children's Subjective Well-Being in Indonesia: The Protective Role of Family and School Climate

Studies on the influence of family and school climates on the relationships between sibling and school bullying victimization and children's subjective well-being (SWB) in Indonesia are still scarce. The aims of this study are to investigate family and school climates as protective factors for children from the negative consequences of bullying by siblings or other children in school on SWB. The study used the third-wave data of the Children's Worlds survey that was collected in Indonesia in October 2017. Participants of the study were children aged 10 and 12 years old (N = 15,604; 49.8% girls, 50.2% boys, Mean age = 10.55; SD = 1.17). There are four questionnaires used in the study: five items measure bullying at home and at school, the Children's Worlds Subjective Well-Being Scale, six items measure family climate, and four items measure school climate. Data were analyzed using R and the lavaan library for multilevel structural equation modeling, using full information maximum likelihood (FIML) for missing data and robust maximum likelihood (ML) estimation. Results showed that children who experienced bullying incidents, both at home by siblings and at school, predicted lower levels of SWB. School climate and family climate predicted higher levels of SWB. Results also showed that school bullying interacted significantly with school climate, while sibling bullying interacted significantly with family climate. Schools with students that reported more positive levels of family climate also reported higher levels of SWB. Students from public schools reported higher levels of SWB, which is unexpected.

Genetic influences on sibling bullying and mental health difficulties

BACKGROUND

Sibling bullying is associated with mental health difficulties; both in the short and long term. It is commonly assumed that sibling bullying leads to mental health difficulties but additional explanations for the relationship between the two are seldom investigated.

METHODS

To address this gap in knowledge, we used a genetically sensitive design with data from the Avon Longitudinal Study of Parents and Children (maximum N = 3,959, 53% female). At ages 11-13 years, individuals self-reported their involvement in sibling bullying, as a victim and perpetrator, and parents reported on their child's mental health difficulties. Polygenic scores, indices of genetic risk for psychiatric disorders (major depressive disorder and attention deficit hyperactivity disorder) were computed using children's genetic data. Regression and structural equation models were fitted to the data.

RESULTS

Sibling bullying, victimisation and perpetration, and polygenic scores both predicted mental health difficulties in an additive manner but there was no interaction between them. Polygenic scores for mental health difficulties were also associated with sibling bullying.

CONCLUSIONS

These findings suggest that sibling bullying, victimisation and perpetration, is associated with mental health difficulties, even after accounting for some genetic effects. Additionally, the relationship between sibling bullying and mental health difficulties may be, at least partly, due to shared genetic aetiology. One possibility is that genetic risk for mental health difficulties influences the onset of mental health difficulties which in turn make children more susceptible to sibling bullying.

The Prevalence of Bullying Victimization and Perpetration Among the School-Aged Population in Chinese Communities: A Systematic Review and Meta-Analysis

Though bullying was predominantly documented in Western societies, increasing attention has been paid to bullying in Chinese communities during recent years. It remains unknown whether bullying among youngsters in the Chinese communities is similar to or different from their counterparts in Western societies. A systematic review was primarily conducted in English and Chinese databases from the start to December 31, 2021. This study estimated the prevalence of overall (integrating both face-to-face and cyber forms), face-to-face, and cyber bullying victimization and perpetration using random-effects models. Based on 68 eligible studies, this study revealed a pooled prevalence of overall bullying victimization of 22.7% (95% Confidence Interval [CI] [17.7, 28.6]) and a pooled prevalence of overall bullying perpetration of 15.7% (95% CI [6.7, 32.3]). Besides, the estimated prevalence were 20.8% and 10.3% for face-to-face bullying victimization and perpetration, while 9.6% and 8.4% for cyberbullying victimization and perpetration. The subgroup analyses showed that the high heterogeneity of prevalence among the studies estimating bullying victimization and perpetration could be accounted for by sample characteristics and the measurement approaches. This study suggests that bullying is prevalent in the Chinese communities, comparable to, if not higher than, in the Western societies. Prevention and intervention programs are urgently required to reduce bullying among the school-aged population in Chinese communities.

Children's resilience to sibling victimization: The role of family, peer, school, and neighborhood factors

Although common, little is known about the potential impacts of sibling victimization, and how best to ameliorate these. We explored longitudinal associations between sibling victimization and mental health and wellbeing outcomes, and promotive and risk factors that predicted better or worse outcomes following victimization. Data were from >12,000 participants in the Millennium Cohort Study, a longitudinal UK birth cohort, who reported on sibling victimization at age 11 and/or 14 years. We identified potential risk and promotive factors at family, peer, school, and neighborhood levels from age 14 data. Mental health and wellbeing outcomes (internalizing and externalizing problems, mental wellbeing, self-harm) were collected at age 17. Results suggested that over and above pre-existing individual and family level vulnerabilities, experiencing sibling victimization was associated with significantly worse mental health and wellbeing. Having no close friends was a risk factor for worse-than-expected outcomes following victimization. Higher levels of school motivation and engagement was a promotive factor for better-than-expected outcomes. This indicates that aspects of the school environment may offer both risk and promotive factors for children experiencing sibling victimization at home. We argue that effective sibling victimization interventions should be extended to include a focus on factors at the school level.

Peer bullying victimization in adolescence is associated with substance use: cross-sectional findings from French high school students

The relationships between peer bullying victimization in adolescence and substance use have been poorly studied. Thus, we examined the associations between peer bullying victimization and tobacco, alcohol and cannabis use in 496 French high school students. Peer bullying victimization was measured with a 17-item standardized assessment and analyzed as quartiles. Tobacco, alcohol, and cannabis use were assessed with the Hooked on Nicotine Checklist (HONC), the Alcohol Use Disorders Identification Test-Consumption (AUDIT-C) and the Cannabis Abuse Screening Test (CAST), respectively. Total scores at the HONC (0 to 10), AUDIT-C (0 to 12), and CAST (0 to 24) were used as dependent variables in generalized linear models, adjusting for sex, age, prepared graduation, last school marks and friends outside high school. Compared to the first quartile (i.e., the least bullied students), those from the second, third and fourth quartiles had significant increase of the AUDIT-C (B = 0.78 [95%CI 0.17-1.40] with p = 0.013; B = 0.86 [95%CI 0.26;1.46] with p = 0.005 and B = 1.00 [95%CI 0.38;1.62] with p = 0.002, respectively), with dose-dependent relationships (B = 0.33 ([95%CI 0.13; 0.52] with p = 0.001). Those from the fourth quartile had a significant increase of the CAST (B = 2.13[95%CI 1.25;3.01], p < 0.001). When examining the role of peer bullying victimization on the number of substances used, there were significant increased odds for students from the third and fourth quartiles, with dose-dependent relationships (OR = 1.24 [95% CI 1.07;1.44], p = 0.005). These findings encourage paying a particular attention to substance use in students who report being bullied. Consequently, information and prevention using standardized screening tools should be proposed. Conversely, substance use could be an indicator of peer bullying victimization and should thus be explored.

Factors affecting sibling bullying and its association with self-esteem and depression in middle school students

Sibling bullying is an unwanted aggressive behavior of a sibling that is associated with peer bullying and emotional problems. However, the prevalence of sibling bullying, the factors that affect this condition, and its impact on depression and self-esteem are understudied, especially in Thailand. This study aims to examine the prevalence of sibling bullying, factors that affect sibling bullying, and its association with self-esteem and depression during the pandemic. From January to February 2022, a cross-sectional study was conducted in grades 7-9 (age 12-15 years) who had at least one sibling. Demographic characteristics, sibling bullying, self-esteem, and depression were collected using the revised Olweus bully/victim questionnaire, the Rosenberg self-esteem scale, and Patient Health Questionnaire-9, respectively. Binary logistic regression was analyzed to determine associations between sibling bullying and outcomes. Of 352 participants (30.4% female), 92 (26.1%) were victims and 49 (13.9%) were bullies of sibling bullying in the previous 6 months. Factors associated with an increased risk of being victims included female (OR = 2.46; 95%CI 1.34-4.53), peer victimization (OR = 12.99; 95%CI 5.27-32.04), domestic violence (OR = 4.48; 95%CI 1.68-11.95), and perpetrating sibling bullying (OR = 9.81; 95%CI 4.62-20.81). Factors associated with an increased risk of depression were female (OR = 2.59; 95%CI 1.57-4.26), sibling bullying victimization (OR = 2.08; 95%CI 1.22-3.56), physical abuse (OR = 9.50, 95%CI 1.13-79.71) and domestic violence (OR = 3.44; 95%CI 1.40-8.45).  Conclusion: Sibling bullying was not uncommon in Thai young adolescents and was associated with female, peer bullying, domestic violence, and depression. Such associations should be identified early so preventive measures and management could be properly implemented. What is Known: • Sibling bullying increases the risk for engaging in peer bullying, aggressive behaviors, violence, and emotional difficulties during life course trajectories. • Victims of sibling bullying are at increased risk of depression, anxiety, mental distress, self-harm, and decreased well-being. What is New: • The rate of sibling bullying in Thai middle school students, even during the pandemic, was comparable to previous studies of different cultural backgrounds without the pandemic. • Victims of sibling bullying were associated with female sex, peer victimization, domestic violence, perpetrating sibling bullying, and depression. Perpetrating sibling bullying was also associated with bullies in cyberbullying.

A longitudinal study of sibling bullying and mental health in autistic adolescents: The role of self-esteem

Sibling bullying is associated with poor mental health in autistic adolescents. The reasons for this remain unknown. In the current study, we attempted to replicate the existing findings on the direct associations between sibling bullying and mental health in autistic adolescents and expand knowledge by focusing on the indirect associations through self-esteem. We made use of existing data from the Millennium Cohort Study, a nationally representative UK-based birth cohort study. We fitted a mediation model to longitudinal data from a sample of 416 autistic adolescents aged 11, 14, and 17 years old who had at least one sibling. We found that sibling bullying was prevalent in the lives of autistic adolescents, especially in those who were late-diagnosed, had a shared bedroom, and lived in a low-income household. Additionally, increased sibling bullying in early adolescence was a significant predictor of reduced self-esteem in mid-adolescence; in turn, reduced self-esteem predicted poorer mental health and wellbeing in late adolescence. Our findings indicate that sibling bullying in early adolescence may indirectly lead to poorer mental health and wellbeing in late adolescence through a reduction in self-esteem in mid-adolescence in autistic adolescents. We discuss the implications of these findings further.

Heterogeneity of non-suicidal self-injury behavior in adolescents with depression: latent class analysis

BACKGROUND

Non-suicidal self-injury (NSSI) by adolescent patients with depression has become a serious public health problem. This cross-sectional study aims to identify subgroups of adolescents based on NSSI and explore the factors related to these subgroups.

METHODS

The study recruited 326 in- and out-patient adolescents (263 girls and 63 boys) aged 12 to 18 years (mean = 14.7, SD = 1.6) who had self-injured in the past year. Latent class indicators included 12 NSSI variables, as well as suicidal ideation. Logistic regression examined associations between identified classes and related factors.

RESULTS

In this study, two distinct subgroups were identified: a "high suicidal ideation NSSI group" (n = 129, 39.6%) and a "low suicidal ideation NSSI group" (n = 197, 60.4%). Depression (OR = 1.10; 95% CI, 1.05-1.16), female (OR = 2.01; 95% CI, 1.09-3.69), left-behind experience (OR = 2.08; 95% CI, 1.17-3.71), single-parent family (OR = 1.84; 95% CI, 1.11-3.04) and peer victimization (OR = 1.04; 95% CI, 1.02-1.05) increases the probability of belonging to the "high suicidal ideation NSSI group". A high level of perceived social support (OR = 0.99; 95% CI, 0.97-0.99) was a protective factor towards NSSI.

CONCLUSIONS

This study identifies two subgroups of NSSI and the factors associated with each subgroup. The early identification of high-risk groups for major NSSI in adolescents diagnosed with depression is possible due to the identification of correlating factors. Different treatment plans can be developed for different subtypes of NSSI to improve the effectiveness of prevention and intervention, promoting the healthy physical and mental development of adolescents with depression.

Mediators of the association between childhood body mass index and educational attainment: Analysis of a UK prospective cohort study

BACKGROUND

Higher body mass index (BMI) in childhood is associated with lower academic achievement.

OBJECTIVE

To explore potential pathways linking childhood BMI with educational attainment.

METHODS

Using data from the Avon Longitudinal Study of Parents and Children prospective cohort study (N = 6949), we assessed the association between BMI z-scores at 11.7 years and educational attainment at 16 (General Certificate of Secondary Education [GCSE] results). Depressive symptoms, externalizing behaviours, bullying and school enjoyment were considered as potential mediators. Mediators were examined individually and jointly using sequential causal mediation.

RESULTS

Higher BMI z-scores were associated with lower GCSE scores (females β = -3.47 95% CI -5.54, -1.41 males β = -4.33 95% CI -6.73, -1.94). Together, bullying, externalizing symptoms, depressive symptoms and school enjoyment mediated 41.9% of this association in females, and 23.3% in males. In males, evidence for mediation was weak (confidence intervals for all indirect effects spanned the null). In both females and males, most of the mediation was driven by externalizing symptoms.

CONCLUSIONS

The detrimental effect of higher BMI on educational attainment appears to be partly explained by externalizing behaviours, particularly in females. Interventions to support behavioural problems may help the academic achievement of children with a higher body weight.

Identity-based bullying and mental health among Black and Latino youth: The moderating role of emotional suppression

The current study examined the prevalence of identity-based bullying, the unique links between identity-based bullying and mental health (i.e., depressive and posttraumatic stress symptoms [PTSS]), and emotional suppression as a potential moderator of these links. Participants were 899 clinic-referred Black and Latino youth aged 7-18 years (M = 13.37 years, SD = 2.75, 60.8% female). Regression analyses indicated youth who experienced identity-based bullying victimization reported worse depressive symptoms and PTSS, controlling for co-occurring trauma exposure and demographic characteristics. We did not find evidence that emotional suppression moderated these associations. The findings highlight the potentially traumatic nature of identity-based bullying victimization in treatment-seeking Black and Latino youth and speak to the need for identity-based bullying risk screening.

Adverse childhood experiences and their impacts on subsequent depression and cognitive impairment in Chinese adults: A nationwide multi-center study

BACKGROUND

Adverse childhood experiences (ACE_S) are prevalent and have long-lasting effects. This study explored how ACE exposure is associated with subsequent depression and cognitive impairment and whether sociodemographic characteristics modify that association.

METHOD

This study used data on 14,484 participants of the 2015 China Health and Retirement Longitudinal Study (CHARLS) and 2014 CHARLS life history survey. Depression was assessed using the 10-item Center for Epidemiologic Studies Depression scale. Cognitive performance was evaluated via three composite measures: episodic memory, mental intactness, and global cognition. Twelve ACE indicators were measured using a validated questionnaire. Multiple regression models and stratified analyses explored the relationship between ACE_S and subsequent depression and cognitive impairment, as well as potential modifiers.

RESULTS

Compared with individuals without ACE_S, those who experienced four or more ACE_S had a higher risk of subsequent depression (adjusted odds ratio, aOR = 2.65, 95 % confidence intervals [CIs]: 2.21 to 3.16), poorer mental intactness (β = -0.317 [-0.508 to -0.125]), and worse global cognition (-0.437 [-0.693 to -0.181]). Trend analyses showed a dose-response association between accumulated ACE_S and subsequent depression and cognitive impairment. No modifications of those associations by age, sex, educational level, or family's financial status during childhood were observed.

LIMITATIONS

Self-reported measures could favour recall bias.

CONCLUSION

Our study suggests that ACE_S increase the risk of subsequent depression and cognitive impairment in Chinese adults regardless of sociodemographic characteristics. These findings provide important implications for mitigating the adverse effects of early-life stress and promoting health in adulthood.

Involvement in bullying and sleep disorders in Chinese early adolescents

Background

School bullying may cause sleep disorders in early adolescents. Here, we determined the relationship between school bullying (considering all the features of bullying involvement) and sleep disorders, which are the common problems in Chinese early adolescents.

Materials and methods

We conducted a questionnaire survey among 5,724 middle school students from Xuancheng, Hefei, and Huaibei cities in Anhui province, China. The self-report questionnaires included the Olweus Bully/Victim Questionnaire and Pittsburgh Sleep Quality Index. We used latent class analysis to identify the potential subgroups of bullying behavior. Logistic regression analysis was used to investigate the association between school bullying and sleep disorders.

Results

Active participants in bullying interactions, including the bullies and victims, reported higher levels of sleep disorders compared with the non-active participants [Bully: physical (aOR = 2.62), verbal (aOR = 1.73), relational (aOR = 1.80), and cyber (aOR = 2.08); Victim: physical (aOR = 2.42), verbal (aOR = 2.59), relational (aOR = 2.61), and cyber (aOR = 2.81)]. A dose-response relationship was observed between the number of school bullying types and sleep disorders. In the context of bullying roles, bully-victims had the highest risk of reporting sleep disorders (aOR = 3.07, 95% CI: 2.55-3.69). We identified four potential categories of school bullying behaviors: low involvement in bullying, verbal and relational victims, medium bully-victims, and high bully-victims, and the highest frequency of sleep disorders was observed in the high bully-victims group (aOR = 4.12, 95% CI: 2.94-5.76).

Conclusion

Our findings indicate a positive correlation between bullying roles and sleep disorders in early adolescents. Therefore, targeted intervention for sleep disorders should include an evaluation of bullying experiences.

The Associations between Sibling Victimization, Sibling Bullying, Parental Acceptance-Rejection, and School Bullying

Bullying has been identified as the most common form of aggression experienced by school-age youth. However, it is still unclear about the family's influence on school bullying. Therefore, the current study aimed to explore the associations between sibling bullying and school bullying, sibling victimization and school victimization, and parental acceptance-rejection and school bullying victimization. The study was cross-sectional and conducted on a sample of students aged between 11 and 20 years recruited from middle schools in Algeria. The study used a survey adopted from the scale of Sibling Bullying, Student Survey of Bullying Behavior-Revised 2, and the Survey of parental acceptance-rejection in collecting the data. The model's results assessing the association between sibling bullying and school bullying demonstrated that the effect of sibling physical and sibling verbal victims on school victimization was statistically significant. Despite the non-significant effect of sibling emotional victims on school victimization, the effect of sibling physical and sibling verbal bullying on school bullying was statistically significant. However, the effect of sibling emotional bullying on school bullying was not statistically significant. The direct effect of parental acceptance on school victimization was not statistically significant, whereas the effect of parental rejection on school victimization was statistically significant. The direct effect of parental acceptance on school bullying was not statistically significant, while the effect of parental rejection on school bullying was statistically significant. Based on the results, this study provides insights into the understanding of how the family and siblings contribute to school bullying. In particular, sibling victimization, sibling bullying, and parental acceptance-rejection are predictive factors of school bullying among adolescents. Future research should take into account factors based on family to explore the risks of school bullying.

Educational achievement and bullying: The mediating role of psychological difficulties

BACKGROUND

Bullying has a profound and enduring impact on academic achievement. However, there is a lack of clarity surrounding the specific mechanisms of this relationship.

AIMS

This study examined the link between bullying at age 9 and Numeracy/Literacy achievement at age 15 to determine if this relationship is partially or fully explained by psychological difficulties at age 13.

SAMPLE

Secondary data analysis was completed on waves 1, 2 and 3 of child cohort (Cohort'98) of the Growing Up in Ireland (GUI) study, respectively, at 9 years (N = 8568), 13 years (N = 7527) and 15 years of age (N = 6216).

RESULTS

Longitudinal path mediation model was conducted with bullying at age 9 as the predictor, total (emotional and behavioural) difficulties at age 13 as the mediator and Numeracy/Literacy scores at age 15 as outcomes revealing significant indirect effects of bullying on achievement, via psychological difficulties.

CONCLUSIONS

We discuss the impact of bullying on the student's psychological well-being, the relationship between bullying and academic attainment and how this may be tackled to avoid consequences throughout education and later in life.

EDUCATIONAL IMPACT AND IMPLICATIONS

This study emphasizes the need for schools to address the emotional and behavioural difficulties occurring as a result of bullying in order to improve the overall educational experience of a child. Existing interventions can be built upon by focusing on the continuous remediation of such psychological difficulties.

Which Children are Frequently Victimized in U.S. Elementary Schools? Population-based Estimates

We analyzed a population-based cohort of 11,780 U.S. kindergarten children to identify risk and protective factors predictive of frequent verbal, social, reputational, and/or physical bullying victimization during the upper elementary grades. We also stratified the analyses by biological sex. Both girls and boys displaying kindergarten externalizing problem behaviors were at consistently higher risk of frequent victimization during 3rd-5th grade (for the combined sample of boys and girls, verbal odds ratio [OR] = 1.82, social OR = 1.60, reputational OR = 1.85, physical OR = 1.67, total OR = 1.93). Hispanic children relative to non-Hispanic White children and those from higher income families were the most strongly and consistently protected from victimization. Boys were more likely to be physically bullied but less likely to be verbally, socially or reputationally bullied than girls. Other variables including disability, cognitively stimulating parenting, academic achievement, and internalizing behavior problems had statistically significant but less consistent and generally weaker relations with frequent victimization.

Bullying and Emotional Problems in Pupils from 11 to 13 Years Old: Joint Detection through Self-Report

The objective of this study was to adapt and make available a valid instrument based on a joint questionnaire (self-report type) to detect the risk of bullying and emotional problems in pupils aged from 11 to 13 years. The questionnaires used were that of Spain's Ombudsman (Defensor del Pueblo) to detect the risk of becoming a victim of bullying and an adaptation of Spain's CECAD to assess the risk of emotional problems. The participants were 1077 gender-matched subjects enrolled in the 6th year of Primary Education (n = 467) and the 1st year of Lower Secondary Education (n = 610) from 19 schools in the Region of Extremadura. High reliability was obtained in both questionnaires, as well as a significant relationship between bullying and emotional problems (0.36). The scales place the pupils at either a certain risk level (mild, moderate, or severe) or no risk. The study concludes with the description of four situations deriving from the cross relationship between victimization and the pupil's emotional problems: (1) no risk of bullying and no risk of emotional problems (73.2%), (2) risk of bullying but no risk of emotional problems (11.1%), (3) no risk of bullying but risk of emotional problems (9.4%), and (4) risk of bullying and risk of emotional problems (6.3%).

Does Bullying Occur behind Closed Doors? Agreement of Bullying Reports between Parents and Children and Its Differential Associations with Child Outcomes

The present study was aimed at examining the level of agreement between parent and child perceptions of sibling and peer bullying (victimization and perpetration), and investigating whether any differential associations with child emotional and conduct problems could be identified across raters. The actor-partner interdependence model (APIM) was utilized in order to statistically account for the non-independence of the parent-child dyad. The study was based on a sample of 142 parent-child dyads (children: M_age = 12.3 years; parents: M_age = 44.4 years) and employed an online survey design. Bullying experiences and child outcomes were assessed via parent- and self-report. Intraclass correlation analysis revealed a moderate level of agreement between parent- and child-reports of sibling and peer bullying victimization. Low to moderate levels of parent-child agreement emerged for sibling perpetration and low agreement for peer perpetration. Moreover, APIMs found that parent- and child-reports of bullying were differentially associated with child adjustment. The results of this study suggest that child- and parent data each add additional and unique information into the big picture. Thus, our findings argue for the utility of integrating parent and child perspectives simultaneously in research and clinical practice, in order to uncover the complex reality of child functioning in the context of the family system.

Co-occurrence of sibling and peer bullying victimization and depression and anxiety among Chinese adolescents: The role of sexual orientation

BACKGROUND

Bullying victimization is a robust predictor of mental distress among lesbian/gay, bisexual, and questioning (LGBQ) adolescents. However, few research accounted bullying victimization within the context of both sibling and peer relationships.

OBJECTIVE

To examine the effect of sibling and peer bullying victimization on depression and anxiety between heterosexual adolescents and LGBQ adolescents.

METHOD

This was a cross-sectional study with a random sample of 3062 Chinese senior high school students (56.0% female) aged 14 to 18. Related information was collected through a self-reported questionnaire. The associations were examined via a set of logistic regression analysis.

RESULTS

Of the participants, 12.5% were victims of sibling bullying only, 10.1% reported peer victimization only, and 4.7% were involved in both sibling and peer victimization. Compared to heterosexuals, LGBQ adolescents had increased risks of sibling victimization only, peer victimization only, and both sibling and peer victimization. The prevalence of major depression and generalized anxiety disorder were 24.9% and 18.7% respectively. Bullying victimization and sexual orientation were independently associated with depression and anxiety. Furthermore, the stratified analysis indicated that sibling victimization only was significantly associated with depression and anxiety for heterosexual adolescents, while the associations were not significant for LGBQ adolescents.

CONCLUSIONS

Sexual orientation and bullying victimization are predictive factors of depression and anxiety. In particular, bullying victimization shows the different effects on depression and anxiety between heterosexual and LGBQ adolescents. Anti-bullying intervention could take distinct strategies based on different sexual orientation to reduce risks of adolescents' mental health problems.

Prevalence and Associated Family Factors of Sibling Bullying Among Chinese Children and Adolescents

Sibling bullying is the most common form of aggression within family worldwide, while the prevalence and correlations of sibling bullying is little known in China. The current research focused on the association between family factors and sibling bullying among Chinese adolescents, and explore sex differences in sibling bullying in the context of Chinese culture. A cross-sectional study was conducted to explore the characteristics of sibling bullying by sampling 6302 children and adolescents who had at least 1 sibling living in the household. Of the participants, 1827 (29.0%) were involved in sibling bullying over the past half year, and pure victims, pure bullies, and bully-victims were 486 (7.7%), 510 (8.1%), and 831 (13.2%), respectively. Family factors of sibling bullying were partly different between boys and girls. Parental absence of both father and mother was a risk factor of being a pure bully and a bully-victim for boys, and of being a pure victim for girls. Parental son preference increased the odds of being a pure victim and a bully-victim for boys, and of being all roles of sibling bullying involvement for girls. Besides, parent–parent violence, parent–child violence, and living with a single parent were risk factors of sibling bullying. The results underline the importance of home environment on sibling relationship, and intervention of sibling bullying should include improving family climate.

Associations between experienced aggression, poor sleep, and suicide risk among Chinese adolescents

STUDY OBJECTIVES

The physical and mental health of adolescents is an important study area. This study aims to examine the occurrence of aggression, sleep disturbances, and suicide risk among Chinese adolescents, along with the relationships between these factors.

METHODS

This is a cross-sectional study conducted through an online survey. Of the original 7011 Chinese adolescent respondents, the analysis included data from 6122 adolescents, aged between 12 and 18 years, from 23 regions, whose average age was 16.12 (±1.44) years, with 48.8% being male. While the chi-square test and t-test were used for analyzing demographic data and continuous variables, respectively, mediation analysis was used to explore the mechanism of experiencing aggression on suicide risk. The respondents' sleep quality, nightmare distress, daytime sleepiness, fatigue, and suicide risk were assessed using the Pittsburgh Sleep Quality Index (PSQI), Nightmare Distress Questionnaire-Chinese version (NDQ-CV), Chinese Adolescent Daytime Sleepiness Scale (CADSS), Multidimensional Fatigue Inventory (MFI-20), and the suicide risk module of the Mini-International Neuropsychiatric Interview (MINI), respectively. Four items were used to assess adolescents' experiences with aggression.

RESULTS

Of the respondents, 42% reported experiencing aggression by others, especially parental physical maltreatment. Furthermore, 26.9% of adolescents in school, and in particular, 31.8% in senior high school experienced insomnia symptoms. Adolescents who reported experiences of aggression had more severe insomnia symptoms, nightmare distress, fatigue, and a higher risk of suicide when compared with those who did not (all ps < 0.001). Insomnia symptoms, nightmare distress, and fatigue all mediated the relationship between aggression and suicide risk, and there was a chain of mediating effects between these factors [for total indirect effect β = 1.1512, 95% CI (0.9671 to 1.3426), direct effect β = 0.4934, 95% CI (0.1978 to 0.7891), and total effect β = 1.6446, 95% CI (1.3479 to 1.9414)].

CONCLUSIONS

Our findings indicate that among adolescents, experiencing aggression is associated with an increased suicide risk. In addition to the direct effect of aggression on suicide risk, insomnia, nightmare distress, and fatigue mediate the relationship between aggression and suicide risk. More attention should be paid to adolescents experiencing aggression, and interventions should be implemented and strengthened.

The Mediating Role of School and Sibling Bullying in the Relationship between Subjective Well-Being and Mental Health Symptoms

Recently, empirical studies have indicated an association between well-being and mental health. The nature of this association remains unclear since some studies suggest it is weak, whilst others indicate it is strong. The present study seeks to contribute to this dialogue by modelling not only the relationship between well-being and internalising and externalising mental health symptoms but also by introducing a mediation model where school and sibling bullying, as risk factors, are acting as mediators. A national sample of 1244 youth (Mage = 12.47, SD = 1.69) from the Understanding Society household panel study in the UK was utilised to estimate the structural equation model. The findings showed that the direct effect of well-being on internalising symptoms was negative and strong, whereas it was negative and moderate on externalising symptoms. Furthermore, the pattern of indirect effects from subjective well-being to internalising and externalising mental health symptoms displayed some differences in the level of statistical significance and strength. Implications for policy and practice are discussed.

Modeling the transition from acute to chronic postsurgical pain in youth: A narrative review of epidemiologic, perioperative and psychosocial factors

A growing number of studies have identified high rates of pediatric chronic postsurgical pain (CPSP) after major surgery. Pediatric CPSP is associated with pain-related distress and comorbid mental health outcomes, such as anxiety and depression. From a biopsychosocial perspective, youth factors, such as genetics, epigenetics, sex, presurgical pain, sleep, anxiety, and pain catastrophizing, as well as parent factors, such as cognitive appraisals of their child’s pain expression and pain catastrophizing, converge and lead to chronic pain disability. A comprehensive and testable psychosocial model of the transition from acute to chronic pediatric postsurgical pain has not been developed. This narrative review begins by evaluating the epidemiology and trajectories of pediatric CPSP and moves on to examine the more influential psychosocial models that have been proposed to understand the development of pediatric CPSP. Much of the literature to date has been conducted on adolescents undergoing spinal fusion. To conceptualize the transition from acute to chronic pain in youth, a combined diathesis-stress and interpersonal fear avoidance model is presented. Novel areas of future research include the potential influence that siblings and peers have on a youth’s development of CPSP as well as the influence of gender.

Sibling conflict during COVID-19 in families with special educational needs and disabilities

Young people with special educational needs and disabilities (SENDs) and their families have been particularly hard hit by the COVID-19 pandemic. In this longitudinal study, sibling conflict in these families during and after the first lockdown in the United Kingdom was investigated. Online questionnaires were completed by 504 parents of young people with SENDs at four time points between 23 March 2020 and 10 October 2020 (over half completed the questionnaire at multiple time points). As lockdown progressed, young people with SENDs were more likely to be picked on or hurt by their siblings compared with earlier stages of the lockdown but there was no change in how frequently they harmed or picked on their siblings. After lockdown, both perpetration and victimization decreased but not to the same rates as the first month of lockdown. Young people with SENDs with severe or complex needs were somewhat protected from sibling conflict. Findings are discussed with reference to implications for support and planning for future pandemics.

Prenatal stress and offspring depression in adulthood: The mediating role of childhood trauma

BACKGROUND

There is repeated evidence for a prenatal programming effect for the development of offspring depression. However, examination of environmental influences along this pathway is sparse. This study aimed to investigate the direct and indirect effects of pre- and postnatal stress on offspring depression in adulthood, via increased exposure to childhood trauma.

METHODS

A large longitudinal population-based cohort (N = 3506) was followed up from birth and assessed at 24 years. Diagnosis of depression was derived using the International Classification of Diseases-10th revision (ICD-10). Two separate sources of pre- and postnatal stress were examined - maternal depression and family adversity, and childhood trauma was assessed prospectively across childhood until 17 years.

RESULTS

Both pre- and postnatal maternal depression and family adversity were associated with offspring depression at 24 years in simple logistic regression models. When all pathways were modelled simultaneously, only childhood trauma was directly associated with offspring depression, and mediated all pathways from both sources of pre- and postnatal stress to offspring depression (7-16% of the total effect mediated). Sensitivity analysis on specific trauma found stronger evidence for a mediated pathway via physical, emotional abuse and peer bullying, compared to emotional neglect, sexual abuse and domestic violence.

CONCLUSIONS

These findings indicate that reducing childhood trauma could be a target to decrease depression in the general population, and the focus should also be on families at high risk of experiencing pre- or postnatal stress, to provide them with better support.

Patterns of adverse childhood experiences and depressive symptom trajectories in young adults: A longitudinal study of college students in China

BACKGROUND

Adverse childhood experiences (ACEs) tend to cluster together in daily life, and most studies focus on the level of depression at certain points, but the dynamic process of depression is often neglected. Thus, research is urgently needed to explore the relationship between ACEs pattern and trajectory of depressive symptom levels at multiple time points in order to provides early targeted interventions to those who are most at risk.

OBJECTIVE

We aimed to explore patterns of ACEs, including types and timing, associated with depression trajectories in college students.

METHODS

A school-based health survey was used to collect data as part of a longitudinal study in two medical college in Anhui province, China. Questionnaires were issued to 3,662 participants aged 17-22 and recorded details of ACEs (types and timing) and depression. Latent class analysis (LCA) was used to identify "patterns" of ACEs type and timing. Depressive symptom trajectories employed latent class growth analysis (LCGA). Multiple logistic regressions were employed to evaluate the relationships between ACEs patterns and depressive symptom trajectories.

RESULTS

We identified five ACEs patterns: "High neglect/emotional abuse/community violence," "High neglect/emotional abuse," "High neglect/family dysfunction," "High neglect," "Low ACEs." We traced three depression trajectories: "High depressive symptom" "Moderate depressive symptom," "Low depressive symptom." "High neglect/emotional abuse/community violence," "High neglect/emotional abuse" and "High neglect/family dysfunction" demonstrated a high risk for "High depressive symptom" and "Moderate depressive symptom." "High neglect" showed a high risk for "Moderate depressive symptom" but not for "High depressive symptom" (P < 0.05).

CONCLUSIONS

The findings address the need for a comprehensive consideration of exposure to childhood adversity associated with the risk of depression in young adults through identifying more problematic ACEs patterns amongst exposed children.

Sibling, Peer, and Cyber Bullying Among Children and Adolescents: Co-occurrence and Implications for Their Adjustment

Bullying across the sibling, peer, and cyber context has consistently been associated with a range of long-term health and well-being consequences for children and adolescents. Although research examining different bullying forms simultaneously in the same study are emerging, it remains unclear to what extend sibling, peer, and cyber bullying co-occur and in what ways they are associated. Moreover, previous work has demonstrated that children and adolescents who experience multiple forms of victimization are at a particular risk of adverse outcomes. However, whether different constellations of co-occurring bullying forms have differential impacts has not yet been investigated sufficiently. The aim of the present study was to examine the frequencies of isolated and co-occurring sibling, peer, and cyber bullying as well as to explore their independent and cumulative relationships with child adjustment. This study was based on a sample of 329 children and adolescents aged between 9 and 15. Bullying experiences across the sibling, peer, and cyber context in the previous 6 months were assessed via self-report. Youth further reported on emotional problems, conduct problems, sleep problems, and academic achievement via an online questionnaire. Sibling, peer, and cyber bullying were uniquely associated with child outcomes. A cumulative relationship between bullying victimization across contexts and emotional problems, conduct problems, and sleep problems could be identified, while bullying perpetration across contexts was only linked to more conduct problems in a cumulative manner. The findings have important practical implications arguing for the adoption of a holistic approach toward bullying in prevention and intervention.

Impact of Sibling Victimization on Child Internalizing Symptoms

The current study examined associations between sibling victimization and anxiety and depression symptoms while also considering peer victimization within time and six months later among elementary school-age youth. Both sibling and peer victimization were associated with depression symptoms within as well as across time when considered independently. However, when examined together, peer victimization was only uniquely associated with depression symptoms within time and sibling victimization was only uniquely associated with depression symptoms across time. Sibling and peer victimization were associated with anxiety symptoms within, but not across, time when examined independently, and no associations were evident when sibling and peer victimization were examined simultaneously. No interactive effects of sibling and peer victimization were evident for depression or anxiety symptoms, indicating unique rather than cumulative contributions. Findings suggest that the impact of sibling victimization on depression symptoms is more robust than effects of peer victimization over time.

The Impact of Formal School Entry on Children's Social Relationships with Parents, Siblings, and Friends

The normative transition to formal schooling confronts children with social challenges but also opportunities. Longitudinal research on how school entry impacts children's family and friend-ship relationships is scarce. This study investigated social relationship qualities with parents, siblings, and friends among 1110 children (49.9% female) from the prospective, population-based Bavarian Longitudinal Study at 6 years (before school entry) and 8 years using a forced-choice card-sorting task. Multivariate analyses of variance revealed significant effects of age (i.e., school entry) on social relationship qualities with mothers (Pillai's Trace (PT) = 0.28, F(9, 1101) = 47.73, p < 0.001), fathers (PT = 0.14, F(9, 1101) = 19.47, p < 0.001), siblings (PT = 0.27, F(9, 1101) = 46.14, p < 0.001), and friends (PT = 0.21, F(9, 1101) = 32.57, p < 0.001). On average, children reported higher levels of parental comfort after school entry. Companionable qualities increased in relationships with friends, whereas sibling relationships became more conflictual from preschool to early school age. Findings provide unique insights into how social relationships develop from preschool to early school age, supporting evidence of the growing importance of friends. Conflict was predominant and increasing in sibling relationships and should be considered more in future research.

Sibling Bullying: A Prospective Longitudinal Study of Associations with Positive and Negative Mental Health during Adolescence

Sibling bullying is associated with poor mental health outcomes, but the relevance of specific bullying roles remains unclear. Data from a population-based study (n = 17,157, 48% female) focusing on early (11 years), middle (14 years), and late (17 years) adolescence were analyzed. Associations between sibling bullying roles in early adolescence and positive and negative mental health outcomes in late adolescence were investigated. Generally, bullying, irrespective of role, was associated with poorer mental health outcomes in late adolescence. As the frequency of bullying victimization increased between early and middle adolescence so did the severity of mental health outcomes in late adolescence. The developmental trajectories of externalizing problems were influenced by bullying in early adolescence. Sibling bullying, irrespective of role, is associated with poor mental health outcomes.

The association between sibling bullying and psychotic-like experiences among children age 11-16 years in China

BACKGROUND

Few studies exist on sibling bullying or even sibling aggression more generally in the past 30 years. Studies of sibling bullying have shown that sibling bullying may associate with depression, anxiety, self-harm, suicide ideation in early adulthood. Nevertheless, few studies have explored the relationship between sibling victimization types and the occurrence of psychosis, not to mention that psychotic-like experiences (PLEs) always occur before psychotic disorders. Therefore, the current study aims to examine the association between sibling bullying and PLEs among children age 11-16 years in China.

METHOD

This is a cross-sectional study which included 3231 students from eight junior middle schools in three cities of Hunan Province, China. Frequency and types of sibling bullying was assessed with Sibling Bullying Questionnaire and PLEs was assessed with Community Assessment Psychic Experiences-42.

RESULTS

The percentage of sibling bullying were 12.9% for victimization and 10.8% for perpetration. Sibling bullying plays as an independent influence factor for all subtypes of PLEs, and verbal victimization was the most important risk factor in developing different subtypes of PLEs followed by physical victimization and verbal perpetration.

CONCLUSION

The current study found that sibling bullying is associated with PLEs. Intervention programs should be conducted to focus on those children and adolescents who are involved in multiple types of sibling victimization or perpetration.

Synaptic Pruning in Schizophrenia: Does Minocycline Modulate Psychosocial Brain Development?

Recent studies suggest that the tetracycline antibiotic minocycline, or its cousins, hold therapeutic potential for affective and psychotic disorders. This is proposed on the basis of a direct effect on microglia-mediated frontocortical synaptic pruning (FSP) during adolescence, perhaps in genetically susceptible individuals harboring risk alleles in the complement component cascade that is involved in this normal process of CNS circuit refinement. In reviewing this field, it is argued that minocycline is actually probing and modulating a deeply evolved and intricate system wherein psychosocial stimuli sculpt the circuitry of the "social brain" underlying adult behavior and personality. Furthermore, this system can generate psychiatric morbidity that is not dependent on genetic variation. This view has important ramifications for understanding "pathologies" of human social behavior and cognition as well as providing long-sought potential mechanistic links between social experience and susceptibility to mental and physical disease.

Association of Childhood Intrafamilial Aggression and Childhood Peer Bullying With Adult Depressive Symptoms in China

IMPORTANCE

Childhood intrafamilial aggression, a series of aggressive behaviors inflicted by family members, and adulthood mental health are associated with childhood peer bullying (eg, in the neighborhood or in school). However, few studies have been able to identify the contribution of childhood peer bullying to the association between childhood intrafamilial aggression and adult depression.

OBJECTIVE

To examine the mediating role of childhood peer bullying in the association between childhood intrafamilial aggression and depression in adulthood.

DESIGN, SETTING, AND PARTICIPANTS

This population-based cross-sectional study used data from the China Health and Retirement Longitudinal Study (CHARLS). Middle-aged and older adults (≥45 years) participated in a CHARLS wave from July 1 to September 30, 2015, and the CHARLS life history survey from June 1 to December 31, 2014, with complete data. A 4-step mediation model with logistic regression was run to test the mediating role of peer bullying. Data analysis was performed from October 1 to 30, 2019.

EXPOSURES

Childhood intrafamilial aggression, including parental physical maltreatment and sibling aggression, and peer bullying.

MAIN OUTCOMES AND MEASURES

Depressive symptoms measured by a categorical variable derived from the Center for Epidemiologic Studies Depression Scale, based on a cutoff score of 12.

RESULTS

Among the 15 450 respondents (mean [SD] age, 59.5 [9.9] years; 7987 women [51.7%]), 4422 (28.6%) were exposed to parental physical maltreatment; 986 (6.4%), to sibling aggression; and 2504 (16.2%), to peer bullying in childhood. Respondents experiencing intrafamilial aggression were more likely to be bullied by peers (parental physical maltreatment odds ratio [OR], 2.53 [95% CI, 2.25-2.83]; sibling aggression OR, 3.05 [95% CI, 2.46-3.78]). Children with these adverse experiences were at a higher risk of adult depression symptoms (parental physical maltreatment OR, 1.28 [95% CI, 1.15-1.42]; sibling aggression OR, 1.40 [95% CI, 1.13-1.74]; peer bullying OR, 1.78 [95% CI, 1.56-2.01]). Peer bullying mediated 30% (95% CI, 19%-42%) of the association between childhood parental maltreatment and adult depression and 35% (95% CI, 15%-54%) of the association between sibling aggression and depression symptoms in adulthood.

CONCLUSIONS AND RELEVANCE

This study found that being bullied by peers was a mediator of the association between childhood intrafamilial aggression and depression in adulthood. The findings have important implications to mitigate the effect of early-life stress and promote life-course mental health through dealing with childhood intrafamilial aggression and peer bullying experiences coordinately.