The relation between peer victimization and sleeping problems: A meta-analysis

Trajectories of peer victimization among left-behind children in rural China: The role of positive school climate

Left-behind children are likely to experience peer victimization, which can have detrimental consequences in their developmental outcomes. Yet, limited longitudinal research have examined peer victimization trajectories over time or the factors associated with left-behind children in China. The purpose of the present study was to examine what, if any, distinct trajectories of peer victimization exist among left-behind children and whether these trajectories are related to school climate, left-behind status, and their interactions. Participants were 853 Chinese left-behind children (Mage = 14.25, SD = 2.39; 43.4% girls) who participated in a four-wave longitudinal study conducted in rural China. Participants reported school climate (indexed by safety and order, acceptance and support, equality and fairness, autonomy and cooperation) at T1 and peer victimization across T1 to T4 spanning 2 years. Latent class growth analyses identified four peer victimization trajectories, including a stably low-decreasing group, a moderate-decreasing group, a high-decreasing group, and an increasing group. Multinomial logistic regression analyses revealed that children who perceived more positive school climate were more likely to exhibit a stably low-decreasing trajectory compared to the other three groups. In addition, among left-behind children who perceived more positive school climate, children with single-parent migrating were more likely to be members of the stably low-decreasing group as compared to those with both-parent migrating. Peer victimization among left-behind children is a concern especially for those who were left behind by both parents and perceived less positive school climate. Targeted school-based interventions and services focused on reducing peer victimization and improving school climate are needed for left-behind children, especially those with both-parent migrating.

The meditating role of sleep in the longitudinal associations between peer victimization and internalizing symptoms: A cross-lagged panel analysis

Adolescence is a time of heightened vulnerability for both peer victimization (PV) and internalizing symptoms. While the positive association between them is well established, there is little understanding of the mechanisms underpinning this relationship. To address this gap, the current study aimed to investigate sleep hygiene and school night sleep duration as individual and sequential mediators of the relationship between PV and both depressive and social anxiety symptoms during pre- to mid-adolescence. The study drew upon a community sample of 528 Australian youth aged 10-12 years at baseline (M age = 11.19, SD = .55; 51.1% boys) and data were collected over five annual measurement occasions. Direct and indirect longitudinal and bidirectional associations were examined using cross-lagged panel analysis. There was no evidence of sequential mediation through both sleep hygiene and sleep duration to depression and social anxiety. Instead, the findings show that sleep hygiene mediated the prospective association between PV and both depressive and social anxiety symptoms, and between PV and sleep duration. Overall, sleep hygiene represents a modifiable transdiagnostic factor that can be targeted to break the cycle of PV, inadequate sleep, and internalizing symptoms.

The role of victimisation and sleep quality in self-harm and depression among sexual minority adolescents. A prospective cohort study

Sexual minority adolescents (SMA) have a disproportionately high prevalence of victimisation, self-harm, and depressed mood, relative to the general population. Yet, the contributing and mechanistic factors are unclear. We aim to explore the directional relationship between victimisation and self-harm and depressed mood, with poor sleep quality as a possible mediator. A secondary data analysis was conducted using a nationally representative birth cohort in the United Kingdom, where participants self-identified as sexual minority (N = 1922, aged 11-13, 67.1% female) and their parents completed questionnaires and interviews when the participants were aged 11, 14 and 17. Logistic and linear regression were used to test whether victimisation prospectively predicted self-harm and depressed mood with mediation analyses conducted to assess if sleep onset latency and nocturnal awakening mediated their relationships. After adjusting for demographic factors and baseline self-harm and depressed mood, victimisation at age 11 significantly predicted self-harm (OR = 1.40, p < .01) and depressed mood (B = 0.024, SE = 0.01, p < .05) at age 17. In the mediation analyses, frequent nocturnal awakening at age 14, but not sleep onset latency, significantly mediated the effect of victimisation at age 11 on self-harm (indirect effect B = 0.008, SE = 0.004, 95%CI = 0.001-0.017) and depressed mood (indirect effect B = 0.005, SE = 0.002 95%CI = 0.001-0.010) at age 17. Our findings supported that victimisation contributed to negative mental health among SMA. Poor sleep quality could be an indicator of maladjustment with victimisation, which further increased vulnerability to negative mental health. Victimisation and sleep quality could be important assessment targets in mental health campaign among sexual minority adolescents.

ADHD Symptoms and Sleep Problems During Middle Childhood: The Indirect Effect of Peer Victimization

The present cross-sectional study evaluated whether traditional and/or cyber peer victimization served as mechanisms linking ADHD symptoms to sleep disturbance and sleep impairment in a sample of 284 third- through fifth-grade students (51.9% boys; 50.4% Hispanic/Latine) from two elementary schools in the United States. ADHD symptoms were assessed using teacher ratings. Children provided reports of their traditional and cyber victimization as well as their sleep disturbance and impairment. Results from path analysis models revealed significant indirect effects of traditional victimization on the links from ADHD symptoms to sleep disturbance and impairment. There was also a significant indirect effect of cyber victimization on the link from ADHD symptoms to sleep impairment. These findings suggest that experiences of traditional and cyber peer victimization may need to be addressed among children exhibiting ADHD symptoms in order to mitigate their risk for sleep problems and downstream effects on other domains of psychosocial functioning.

The Links Among Cumulative Ecological Risk and Smartphone Addiction, Sleep Quality in Chinese University Freshmen: A Two-Wave Study

Purpose

While previous research has highlighted the influence of family, school, and peer factors on smartphone addiction and sleep quality, the cumulative effects of these risk factors and their underlying causal relationships remain poorly understood. Therefore, based on the cumulative risk model and the bioecological model of human development, this study examined the longitudinal associations between cumulative ecological risk and smartphone addiction and sleep quality.

Methods

A survey was conducted among 653 Chinese university freshmen (mean age 18.56) at two distinct time points, with a 6-month interval. The initial assessment focused on family, school, and peer risk factors, while the subsequent assessment focused on smartphone addiction and sleep quality.

Results

Approximately 63.71% of university freshmen were found to be at risk of exposure. Compared to other risk-exposure groups, the group with no-risk exposure exhibited the lowest scores for smartphone addiction and sleep quality. The relationships between cumulative ecological risk and smartphone addiction and sleep quality displayed a linear pattern and a discernible "gradient effect". Smartphone addiction was identified as a fully mediating factor in the link between cumulative ecological risk and sleep quality, with a mediating effect value of 0.08 (representing 44.44% of the total effect).

Conclusion

University freshmen face various risks associated with their families, schools, and peers. The cumulative ecological risk can, directly and indirectly, impact sleep quality by influencing smartphone addiction. Given the observed "gradient effect" of cumulative ecological risk on smartphone addiction and sleep quality, it is imperative to adopt comprehensive risk prevention strategies to mitigate the impact of each risk factor.

The effect of bullying victimization on sleep quality among Chinese medical students: Timing, duration, and patterns

BACKGROUND

Bullying victimization (BV) is a potential factor to sleep quality, but the role of BV characteristics in this association remains unclear. This study aimed to investigate correlation between the timing, duration, and patterns of BV and sleep quality among Chinese medical students.

METHODS

4035 participants (mean age of 19.2 ± 1.0) were recruited. BV patterns from pre-school to college were estimated using latent class analysis. Multinomial logistic regression was conducted to evaluate the odds ratio (OR) and 95 % confidence interval (CI) between sleep quality and BV. E values were used to assess unmeasured confounding.

RESULTS

Three patterns of BV were identified as follows: persistent BV (6.2 %), moderate BV (10.5 %), and low BV (83.3 %). BV during pre-school, elementary school, junior high school, senior high school, and college were all positively associated with poor sleep quality. The ORs were 2.30 (1.43-3.70), 3.00 (2.28-3.95), 2.71 (2.14-3.43), 3.34 (2.57-4.33) and 4.13 (3.19-5.36), respectively. The E value were 4.03 (2.21-NA), 5.45 (3.99-NA), 4.86 (3.70-NA), 6.14 (4.58-NA), 7.73 (5.83-NA), respectively. Those who experienced more periods of BV were more strongly associated with poor sleep quality, presenting a dose-response relationship [OR = 1.78, 95 % CI: 1.63-1.95, E value: 2.96 (2.64-NA)]. Those who experienced moderate BV [OR = 2.58, 95 % CI: 1.99-3.35; E value: 4.60 (3.39-NA)] and persistent BV [OR = 4.01, 95 % CI: 2.95-5.46; E value: 7.48(5.35-NA)] had higher odds of poor sleep quality.

LIMITATIONS

Retrospective design may introduce recall bias.

CONCLUSION

BV was positively related to poor sleep quality and chronic exposure to BV had a cumulative effect on poor sleep quality.

Effect of School Bullying on Students' Peer Cooperation: A Moderated Mediation Model

BACKGROUND

Studies show that cooperative environments enhance student performance. However, school bullying can significantly undermine peer cooperation. There is limited research on how school bullying impacts peer cooperation and the mechanisms involved.

METHODS

Using data from 15-year-old middle school students in four Chinese provinces and cities, as part of the 2018 Program for International Student Assessment (PISA), this study employs a moderated mediation model. It examines the negative effects of school bullying on peer cooperation, the mediating role of school belonging, and the moderating effects of teacher support and parents' support.

RESULTS

School bullying negatively impacts peer cooperation. School belonging partially mediates this relationship. Teacher support moderates the effect of school bullying on school belonging, which in turn affects peer cooperation. Parents' support moderates the direct impact of school bullying on peer cooperation.

CONCLUSION

School bullying reduces peer cooperation by diminishing students' sense of belonging in school. This effect is lessened with increased support from teachers and parents. The findings suggest that while social support is beneficial, it must be balanced and not excessive.

The interaction effects of social support and four types of bullying on sleep quality in Chinese adolescents

OBJECTIVES

The aims of this study were to examine the association of verbal, social, physical, and cyber bullying victimizations with sleep quality while taking social support as a moderator and to further examine gender and grade differences in the moderating effects of social support on bullying-associated sleep quality among Chinese adolescents.

METHODS

An online cross-sectional survey was conducted in a province of northwestern China. A total of 20,320 students were included in our analyses. Multivariable linear regression analyses were conducted to examine the association between bullying victimization and sleep quality as well as the moderating effects of social support on these relationships.

RESULTS

After adjusting for confounding variables, four types of bullying victimization were significantly associated with sleep quality. Social support only moderated the relationship of verbal, physical, and social bullying with sleep quality. Moreover, these positive moderating effects were found only for girls and, in terms of grade difference, only for primary students. Some reversed moderating effects of social support were also observed in the relationship of cyber, physical bullying with sleep quality.

LIMITATIONS

This was a cross-sectional study, limiting the causal inference.

CONCLUSIONS

This study revealed that bullying is a risk factor for poor sleep quality among adolescents in northwestern China. Furthermore, social support moderated the relationship between bullying and sleep quality in different ways depending on grade, gender, and type of bullying. More efforts are needed to prevent bullying and improve both school climate and students' sleep quality.

The effect of cyberbullying victimization and traditional bullying victimization on suicidal ideation among Chinese female college students: The role of rumination and insomnia

BACKGROUND

The issue of college student suicide has emerged as a significant global public health concern. To date, there has been a lack of extensive research on the effects of distinct forms of bullying victimization (traditional bullying victimization and cyberbullying victimization) on suicidal ideation, as well as the differences between them. The present study aimed to investigate the relationship between two forms of bullying victimization and suicidal ideation among female college students, while also considering the potential mediating effects of rumination and insomnia.

METHODS

A total of 2106 female college students from Southern China participated in this study. The participants had a mean age of 19.83 years (SD = 1.04 years). Participants completed the MINI-C questionnaire, School Bullying Behavior Questionnaire, Cyberbullying Inventory (CBI), Ruminative Responses Scale (RRS), and Insomnia Severity Index (ISI). The mediation models were conducted using Model 4 and Model 6 of the Process macro program in SPSS.

RESULTS

The results showed that (1) the mediating effect of rumination in the relationship between different forms of bullying victimization and suicidal ideation was significant; (2) The mediating effect of insomnia in the relationship between traditional bullying victimization and suicidal ideation was not significant; the mediating effect between cyberbullying victimization and suicidal ideation was significant. (3) The chain mediating effect of rumination and insomnia in the relationship between different forms of bullying victimization and suicidal ideation were both significant.

CONCLUSION

This study endeavor represents the first attempt to investigate the relationship between two forms of bullying victimization and suicidal ideation.

Anxious-Withdrawal and Sleep Problems during Adolescence: The Moderating Role of Peer Difficulties

Anxious-withdrawal is a well-established individual risk factor for psychosocial difficulties during adolescence. It is unknown, however, whether it also places youth at increased risk for physical health problems, such as sleep difficulties. This study examines the concurrent and prospective associations between anxious-withdrawal and six types of sleep difficulties (i.e., sleeping too much, sleeping too little, talking/walking in sleep, being overtired, nightmares, and general trouble sleeping). We further evaluate whether these associations differ for adolescents who are high versus low in exclusion and victimization. The participants were 395 adolescents (Mage = 13.61 years; 35% ethnic minority) who completed peer nominations of anxious-withdrawal, exclusion, and victimization at Time 1 (T1). Their mothers completed reports of sleep difficulties at T1 and at Time 2 (T2). Path analyses revealed unique associations between anxious-withdrawal and several types of sleep difficulties (e.g., sleeping too much) at T1. Analyses also revealed a significant interaction effect between T1 anxious-withdrawal and exclusion/victimization such that anxious-withdrawal was prospectively associated with trouble sleeping only for those young adolescents who are highly excluded/victimized. Our findings are the first to link anxious-withdrawal to a physical health outcome in adolescence and point to the need for future research to not only examine anxious-withdrawal and physical health but also to include assessments of peer difficulties.

Longitudinal associations between traditional and cyberbullying victimization and depressive symptoms among young Chinese: A mediation analysis

BACKGROUND

The impacts of bullying victimization on psychological health are long-lasting. However, the longitudinal mediating processes of the association between being bullied (traditionally and in a cyber context) and depressive symptoms of Chinese youth remain underexplored, including across the sexes.

OBJECTIVE

This study investigated the longitudinal association between bullying victimization and depressive symptoms, including the mediating effects of physical health, healthy lifestyles, sleep quality, and academic achievements. Different pathways from traditional bullying and cyberbullying victimization regarding depressive symptoms were also explored, with a comparison across the sexes.

PARTICIPANTS AND SETTING

Data were obtained from the China Education Panel Survey, and ninth graders aged approximately 15 years constituted the baseline cohort.

METHODS

The baseline data and longitudinal data at two- and five-year follow-ups, respectively, were evaluated to estimate structural equation models.

RESULTS

Baseline traditional bullying and cyberbullying victimization significantly predicted subsequent depressive symptoms at both follow-ups (P < 0.001). Being bullied also predicted worse healthy lifestyles, poorer sleep quality, and lower academic achievements (P < 0.05), all significantly correlated with the development of depressive symptoms (P < 0.001) regarding both bullying victimizations. Physical health was the mediator of the traditional bullying victimization-depressive symptoms linkage (P < 0.05). Female victims have a relatively higher risk of depression versus male victims, with different mediating pathways from victimization to depressive symptoms.

CONCLUSIONS

Our findings strengthen the evidence of a longitudinal association between bullying victimization and depressive symptoms, provide new explanations for mechanisms of mediation, and highlight the importance of long-term comprehensive mental health interventions for victims of bullying.

The association between victimization experiences and suicidality: The mediating roles of sleep and depression

BACKGROUND

Prior work suggests that multiple forms of victimization were associated with higher suicide risk among adolescents. However, the mechanisms underlying this association remain unclear. The present study aimed to understand the relationships between the multiple forms of victimization and suicidality by examining the potential mediators of sleep duration and depression.

METHODS

Data for this study came from the 2019 Youth Risk Behavior Survey (YRBS). The hypothesized mediation model included 13,677 American adolescents in 9th through 12th-grade students (48.6 % female) were analyzed using Mplus 7.4, and suicidality (including suicidal ideation, plan, and attempts) as the outcome variables and the multiple forms of victimization (including bullying at school, being threatened at school, electronic bullying, sexual victimization, sexual dating victimization, and physical dating victimization) as the main explanatory variable.

RESULTS

The relationships between the multiple forms of victimization and suicide risk were mediated by sleep duration, depression, and also serially mediated by sleep duration and depression.

LIMITATIONS

This is a cross-sectional study, and the results cannot inform the causality between these variables. This investigation only included adolescent sleep duration, and other specific sleep problem indicators should be included.

CONCLUSIONS

Longer sleep duration is an important protective factor, pointing the way forward for developing suicide prevention strategies and targeted interventions for adolescents.

Bullying victimization and internalizing and externalizing problems in school-aged children: The mediating role of sleep disturbance and the moderating role of parental attachment

BACKGROUND

Studies have shown that bullying victimization may be related to internalizing and externalizing problems; however, the mechanism underlying this relationship remains unknown. This study explored the mediating role of sleep disturbance and the moderating role of parental attachment.

METHODS

A total of 1543 Chinese primary school students (M age = 8.92 years, SD1.7 years; range, 6-12) completed bullying victimization, sleep disturbance, and parental attachment measures, and provided information on their parents' occupations. The parents or guardians (n = 1995) also completed ratings on their children's internalizing and externalizing problems.

RESULTS

It was found that bullying victimization directly affected internalizing and externalizing problems and also influenced sleep disturbance. Regardless of the parent's socioeconomic status, parental attachment was found to moderate the relationship between bullying victimization and internalizing problems.

CONCLUSIONS

These findings contribute to understanding the partial mediating mechanism of sleep disturbance in the association between bullying victimization and internalizing and externalizing problems. The protective role of parental attachment proved central to preventing internalizing problems in bullied children. Intervention programs that enhance parental attachment and improve sleep quality could assist in mitigating the impact of bullying victimization on internalizing or externalizing problems.

Longitudinal associations between cyber victimization and problematic mobile phone use in adolescents: Disentangling between-person effects from within-person effects

BACKGROUND

Being the target of cyber victimization has been shown to be connected with several forms of maladjustment among adolescents. However, there is not a clear understanding of the impact of cyber victimization on Problematic Mobile Phone Use (PMPU) and the potential mechanism underlying the association. The present study tested the longitudinal association between cyber victimization and adolescents' PMPU as well as the mediating role of sleep problems in this association.

METHODS

A sample of 1835 Chinese adolescents (55.9 % boys; M_age = 12.34) completed self-report questionnaires regarding cyber victimization, sleep problems and PMPU at four time points, using 6-month intervals. Gender, age and socioeconomic status were controlled for in the analyses. We tested cross-lagged panel models (CLPMs) and random intercept cross-lagged panel models (RI-CLPMs) to separate between- and within-person effects, allowing a robust and rigorous test of relationships among variables.

RESULTS

As hypothesized, at the within-person level, cyber victimization was a predictive risk factor of later PMPU among adolescents, and sleep problems served as an explanatory mechanism by which cyber victimization predicted adolescents' PMPU over time.

CONCLUSION

These findings contribute to identifying adolescents at risk for engaging in PMPU, as well as the prevention and intervention.

Psychosocial determinants of sleep difficulties in adolescence: the role of perceived support from family, peers, and school in an Italian HBSC sample

The present study explores the concurrent contribution to sleep problems of individual-related, family-related, and school-related factors in adolescence. Gathering from the Italian 2018 Health Behavior in School-Aged Children (HBSC) data collection, we used hierarchical logistic regression on a sample of 3397 adolescents (51% females, Mage = 13.99, SD = 1.62) to explore the contribution to sleep problems of the individual (Model 1: alcohol use, smoking, screen time, physical activity), familial (Model 2: parental communication, parental support), and school-related (Model 3: peer support, schoolmates/students support, teacher support and school pressure) variables. 28.3 percent of adolescents reported having sleep difficulties. Overall, Model 3 significantly improved over Model 2 and Model 1. Data showed that increasing smoking (OR = 1.11; 95% CI: 1.03-1.20) and screen time (OR = 1.05; 95% CI: 1.02-1.08) were associated with sleep difficulties but not alcohol use and physical activity. Also, impaired communication with both parents and increasing parental support (OR = 0.84; 95% CI: 0.78-0.90) were associated with decreased odds of sleep problems. Finally, both increases in school pressure (OR = 1.40; 95% CI: 1.26-1.56) and lack of student support (OR = 1.25; 95% CI: 1.10-1.42) were associated with a higher likelihood of sleep problems, while peer support and teacher support were not.   Conclusion: Our findings highlight the importance of an integrated approach to the study of sleep difficulties in adolescence that includes specific psychosocial contributors such as the quality of parental communication and perceived parental support and considers the quality of the day-to-day relationship with schoolmates and the school level of demands. What is Known: • Adolescents' are at-risk of more significant sleep difficulties, and recent literature highlights the importance of an integrated approach to understanding this phenomenon, including biological, psychosocial, and contextual factors. • The literature lacks findings that consider the concurrent contribution of individual and psychosocial factors to sleep difficulties in adolescence. What is New: • The quality of parental communication and perceived parental support, as expressions of adult figures' emotional and behavioural availability in the adolescent's life, are significant determinants of sleep difficulties. • The quality of day-to-day relationships with schoolmates and the school level of demands contribute to adolescent sleep problems.

Longitudinal Associations Between Cybervictimization and Adolescent Sleep Problems: The Role of Anxiety and Depressive Symptoms

Adolescents who have experienced cybervictimization are at risk for sleep problems. However, there is a gap in knowledge about the mechanism that would explain this link. The study used a longitudinal design to test if cybervictimization predicted adolescents' sleep problems 6 and 12 months later, and whether these patterns could be explained in part by emotional distress in response to the victimization. Participants were 1987 Chinese adolescents (56.1% males) ages 10 to 14 (M = 12.32, SD = 0.53) at baseline. Data were collected over the course of 1 year, in three waves 6 months apart. The adolescents completed questionnaires regarding cybervictimization, sleep problems, depressive symptoms, and anxiety symptoms at all three time points. Autoregressive cross-lagged models showed that cybervictimization predicted later sleep problems after controlling for traditional peer victimization, and anxiety and depressive symptoms mediated this link. Multivariate latent growth models showed that the developmental trajectories of cybervictimization, sleep problems, anxiety symptoms, and depressive symptoms were related in complex ways over time. Measures of study variables were self-reported, and generalizability may be limited by a sample of adolescents from school in China. These results are important because of their implications for prevention and treatment of adolescents' sleep problems evoked by cybervictimization.

Bullying Victimization and Quality of Life among Chinese Adolescents: An Integrative Analysis of Internet Addiction and Social Withdrawal

Bullying victimization has been proven to be a direct predictor of adolescents' quality of life, whereas elaborate mechanisms remain inconclusive. This study aims to explore the mediating pathway of Internet addiction and social withdrawal on the relationship between bullying victimization and quality of life among Chinese adolescents. This study used the cross-sectional data collected by self-reported questionnaires, including multidimensional peer-victimization scale, youth quality of life instrument-short form, prolonged social withdrawal questionnaire, and compulsive Internet use scale. A total of 1278 participants from four junior middle schools and two high schools participated in the questionnaire survey. SPSS 25.0 and Amos 25.0 were adopted to analyze the data. The results indicated that bullying victimization was directly and indirectly associated with adolescents' quality of life. Internet addiction and social withdrawal partially mediated the relationship between bullying victimization and quality of life among adolescents. The current study demonstrated the underlying pathway of how bullying victimization affected adolescents' quality of life, which could provide an intervention perspective for governments and social workers to improve adolescents' quality of life by controlling Internet addiction and social withdrawal.

Associations of sleep problems with non-physical bullying perpetration and victimization among adolescents: A cross-lagged panel study

OBJECTIVE

The current study attempted to explore the possible temporal direction of the relationship between sleep problems and non-physical bullying perpetration as well as non-physical bullying victimization among adolescents.

DESIGN

The study used a longitudinal panel survey design with a 6-month interval.

SETTING

A cluster random sampling method was conducted to recruit students from junior high schools in Northern Taiwan.

PARTICIPANTS

Eight hundred twenty-two students (46.6% were boys) completed a survey at 2 waves.

MEASUREMENT

Adolescents reported their sleep problems, non-physical bullying perpetration, and non-physical bullying victimization in both waves.

RESULTS

The results from cross-lagged panel models revealed that sleep problems at time 1 significantly predicted non-physical bullying victimization at time 2, but not in the opposite direction. In addition, non-physical bullying perpetration at time 1 significantly predicted sleep problems at time 2, but not in the opposite direction. No significant differences emerged between male and female adolescents in the cross-lagged model of sleep problems with non-physical bullying perpetration and non-physical bullying victimization.

CONCLUSION

This study advances the literature by revealing that sleep problems may be a consequence, not a precursor, of adolescent non-physical bullying perpetration and a precursor, not a consequence, of non-physical bullying victimization. Intervention programs aimed at preventing adolescents from being non-physically bullied may consider improving their sleep quality. Reducing adolescents' non-physical bullying perpetration may also improve sleep quality along the way.

Associating sleep quality, quality of life and child poly-victimization

BACKGROUND

The role of sleep deprivation in the relationship between child poly-victimization and pediatric quality of life (PedsQL) has received little attention.

OBJECTIVE

This study aims to provide a profile of the association between child victimization and poly-victimization and PedsQL among children, examining the role of sleep quality patterns in these relationships.

PARTICIPANTS AND SETTING

We conducted a cross-sectional school survey study of family structure and child victimization among families in Hong Kong in 2016-17 with two-stage stratified sampling. The final sample consisted of 5, 567 students recruited from a representative sample of 107 kindergartens, primary schools, and secondary schools in all districts of Hong Kong.

METHODS

Multi-phase regression analysis and simple slope analysis were conducted to examine the moderating effects of sleep quality between child victimization and PedsQL.

RESULTS

The findings showed that children who experienced four or more types of victimization were more likely to show parasomnia and daytime dysfunction symptoms than those experiencing one to three types of victimization and non-victims. It also revealed significant relationships between child poly-victimization and lower levels of PedsQL, which were moderated by parasomnia and daytime dysfunction.

CONCLUSIONS

This study has implications for clinicians in targeting the pattern of sleep changes combined with holistic screening in outpatient services for early detection of child poly-victims.

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.

Smartphone addiction and victimization predicts sleep problems and depression among children

BACKGROUND

In this study we examined the phenomena of smartphone addiction, online harassment, and school bullying/victimization to predict the prospective influence these could have on the onset and persistence of sleep problems and depression among children.

METHODS

Responses from 2155 fifth-grade children recruited from 30 primary schools in Taipei were assessed, and a follow-up was performed in the 6th grade. Self-administered questionnaires were collected for each year.

FINDINGS

Children who reported smartphone addictions, online harassment, and school bullying/victimization coupled with an increase in those factors were more likely to experience the onset and persistence of sleep problems. In addition, children who reported smartphone addiction, online harassment, school bullying/victimization, and poor sleep quality were more likely to experience the onset and persistence of depression.

IMPLICATIONS

School nurses or pediatric nurses should be able to assess children's Internet use and risks to understand potential influences on sleep quality and mental status and provide recommendations for children, parents and schools.

Integrative Brain Dynamics in Childhood Bullying Victimization: Cognitive and Emotional Convergence Associated With Stress Psychopathology

Bullying victimization is a form of psychological stress that is associated with poor outcomes in the areas of mental health and learning. Although the emotional maladjustment and memory impairment following interpersonal stress are well documented, the mechanisms of complex cerebral dysfunctions have neither been outlined nor studied in depth in the context of childhood bullying victimization. As a contribution to the cross-disciplinary field of developmental psychology and neuroscience, we review the neuropathophysiology of early life stress, as well as general psychological stress to synthesize the data and clarify the versatile dynamics within neuronal networks linked to bullying victimization. The stress-induced neuropsychological cascade and associated cerebral networks with a focus on cognitive and emotional convergence are described. The main findings are that stress-evoked neuroendocrine reactivity relates to neuromodulation and limbic dysregulation that hinder emotion processing and executive functioning such as semantic cognition, cognitive flexibility, and learning. Developmental aspects and interacting neural mechanisms linked to distressed cognitive and emotional processing are pinpointed and potential theory-of-mind nuances in targets of bullying are presented. The results show that childhood stress psychopathology is associated with a complex interplay where the major role belongs to, but is not limited to, the amygdala, fusiform gyrus, insula, striatum, and prefrontal cortex. This interplay contributes to the sensitivity toward facial expressions, poor cognitive reasoning, and distress that affect behavioral modulation and emotion regulation. We integrate the data on major brain dynamics in stress neuroactivity that can be associated with childhood psychopathology to help inform future studies that are focused on the treatment and prevention of psychiatric disorders and learning problems in bullied children and adolescents.

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.

An App-Based Intervention for Adolescents Exposed to Cyberbullying in Norway: Protocol for a Randomized Controlled Trial

BACKGROUND

Adolescents exposed to negative online events are at high risk to develop mental health problems. Little is known about what is effective for treatment in this group. NettOpp is a new mobile app for adolescents who have been exposed to cyberbullying or negative online experiences in Norway.

OBJECTIVE

The aim of this paper is to provide a description of the content of the intervention and about a randomized controlled trial that will be conducted to examine the effectiveness of NettOpp. This protocol is written in accordance with the Spirit 2013 Checklist.

METHODS

An effectiveness study with a follow-up examination after 3 months will be conducted to evaluate the mobile app. Adolescents will be recruited through schools and will be randomly assigned to the intervention (NettOpp) group and a waiting-list control group. The adolescents (aged 11 to 16 years) will respond to self-report questionnaires on the internet. Primary outcomes will be changes in mental health assessed with the Strengths and Difficulties Questionnaire, the WHO-Five Well-being Index, and the Child and Adolescent Trauma Screen.

RESULTS

Recruitment will start in January 2022. The results from this study will be available in 2023.

CONCLUSIONS

There are few published evaluation studies on app-based interventions. This project and its publications will contribute new knowledge to the field.

TRIAL REGISTRATION

ClinicalTrials.gov NCT04176666; https://clinicaltrials.gov/ct2/show/NCT04176666.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID)

PRR1-10.2196/31789.

Usability of a Technology-Based Bystander Bullying Intervention for Middle School Students in Rural, Low-Income Communities: Mixed Methods Study

BACKGROUND

Students who are targets of bullying and who witness bullying are at high risk for negative mental health outcomes. Bystander training is essential to reduce bullying and the negative associated consequences for targets and bystanders. Resources necessary for program delivery, however, pose significant barriers for schools, particularly those in rural, low-income communities. Technology-based programs can reduce health disparities for students in these communities through cost-effective, easy-to-disseminate programming.

OBJECTIVE

The aim of this study is to conduct usability testing of a bystander bullying web app prototype, STAC-T (technology-based STAC, which stands for the 4 bystander strategies Stealing the Show, Turning it Over, Accompanying Others, and Coaching Compassion) as an initial step in the development of a full-scale STAC-T intervention. Objectives include assessing usability and acceptability of the STAC-T prototype, understanding school needs and barriers to program implementation, and assessing differences in usability between school personnel and students.

METHODS

A sample of 16 participants, including school personnel and students recruited from 3 middle schools in rural, low-income communities, completed usability testing followed by a qualitative interview. Descriptive statistics, 2-tailed independent sample t tests, and consensual qualitative research were used to assess usability and program satisfaction and to extract themes related to acceptability, feasibility, needs, barriers, and feedback for intervention development.

RESULTS

Usability testing indicated that the app was easy to use, acceptable, and feasible. Both school personnel (mean rating 89.6, SD 5.1) and students (mean rating 91.8, SD 7.0) rated the app well above the standard cutoff score for above-average usability (ie, 68), and both school personnel (mean rating 5.83, SD 0.41) and students (mean rating 6.10, SD 0.57) gave the app high user-friendliness ratings (0-7 scale, with 7 as high user-friendliness). The overall ratings also suggested that school personnel and students were satisfied with the program. Of the 6 school personnel who said they would recommend the program, 1 (17%), 4 (66%), and 1 (17%) rated the program as 3, 4, and 5 stars, respectively; 80% (8/10) of students said they would recommend the program; and 60% (6/10) and 40% (4/10) rated the program as 4 stars and 5 stars, respectively. Qualitative data revealed that school personnel and students found the STAC-T app to be useful, user-friendly, and relevant, while providing feedback related to the importance of digital learning activities that engage the user. Data from school personnel also indicated positive perceptions regarding program feasibility and probability of program adoption, with the most significant barrier being cost, suggesting the importance of considering the financial resources available to schools in rural, low-income communities when setting the price point for the full-scale STAC-T intervention.

CONCLUSIONS

This study provides support for the full-scale development of the STAC-T app and provides key information for revision to enhance used engagement.

TRIAL REGISTRATION

ClinicalTrials.gov NCT04681495; https://clinicaltrials.gov/ct2/show/NCT04681495.

The association between bullying-victimisation and sleep disturbances in adolescence: Evidence from a twin study

Bullying-victimisation has been associated with sleep disturbances. This study investigated the degree to which subtypes of bullying-victimisation in adolescence are linked with sleep disturbances. Genetic and environmental contributions underlying bullying-victimisation and sleep disturbances were investigated. Participants (3,242-5,076 pairs) from a longitudinal community twin study reported on their bullying-victimisation at the age of 14 years, and sleep quality and insomnia symptoms at age 16. Regression analyses were used, accounting for the role of individual and family factors. Structural equation twin model fitting was conducted. Bullying-victimisation was modestly associated with sleep quality and insomnia symptoms (r = 0.22-0.23) and a similar strength of associations was found across bullying-victimisation subtypes (r = 0.11-0.22). Bullying-victimisation, sleep quality and insomnia symptoms were predominantly influenced by genes (25-59%) and non-shared environments (40-62%). The association between bullying-victimisation and sleep quality was explained by genetic and non-shared environmental influences. For insomnia symptoms and sleep quality, the association with bullying-victimisation was in part explained by a genetic overlap. Associations between bullying-victimisation and sleep disturbances are not limited to specific aspects of bullying-victimisation but appear to exist for all subtypes. These findings stimulate research questions regarding the mechanisms underlying these links. For example, could certain heritable traits, such as temperament, increase vulnerability to experiencing sleep disturbances and being bullied? Research on bullying and sleep should aim to take the role of genetic predisposition into account, while also noting that it is not the only causal influence. Understanding more about these pathways could strengthen the development of techniques to prevent these difficulties from occurring.

Exposure to peer aggression and adolescent sleep problems: Moderation by parental acceptance

Many adolescents experience or witness aggression by peers at school. The purpose of the current study was to examine associations between exposure to peer aggression (i.e., peer victimization and witnessing school violence) and sleep problems and whether these associations are moderated by parental acceptance. Participants included 272 adolescents attending high school (M age = 17.27 years; 49% female; 59% White/European American, 41% Black/African American). Adolescents reported on exposure to peer aggression, parental acceptance, and two key sleep domains: sleep quality problems and daytime sleepiness. Results indicated that exposure to peer aggression was directly associated with poor sleep quality and sleepiness. Furthermore, peer victimization and witnessing school violence interacted with parental acceptance to predict sleep quality. Specifically, exposure to peer aggression was associated with sleep quality problems at higher (but not lower) levels of parental acceptance. The lowest levels of sleep quality problems were apparent at low levels of peer aggression and high levels of parental acceptance, but parental acceptance did not protect adolescents with high exposure to peer aggression against sleep problems. Findings illustrate the importance of considering moderators of effects and the conjoint roles of family and peer processes when considering individual differences in adolescents' sleep. Future research should examine whether parental strategies targeted to address peer victimization are protective against the detrimental effects of exposure to peer aggression. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Bullying Involvement in Adolescence: Implications for Sleep, Mental Health, and Academic Outcomes

Adolescents' involvement in bullying is associated with both sleep and mental health problems, but the nature of this association remains unclear; further, its association with academic outcomes has received little attention. Thus, the aims of the current study were to (a) determine whether involvement in bullying as a victim, bully, or bully-victim was associated with greater sleep and mental health problems and (b) explore the potential mediating effect of sleep and mental health problems on the association between bullying and academic outcomes. A large 2012 population-based study in Hordaland County, Norway, surveyed 10,220 adolescents (16-19 years; 54% girls) about bullying involvement using the revised version of the Olweus Bully/Victim Questionnaire, detailed sleep assessment, and mental health questionnaires. Academic outcomes were obtained from official administrative registries. 1.7% of the adolescents (n = 156) reported being victims of bullying, 1.0% (n = 92) reported being a bully, and 0.5% (n = 50) reported being a bully-victim. All categories of bullying involvement had higher rates of mental health problems compared with adolescents not involved in bullying. Victims reported more symptoms of anxiety and depression, whereas bullies reported higher rates of conduct problems. Adolescents in all bullying categories also reported significantly shorter sleep duration and higher prevalence of insomnia as well as lower grade point average (GPA) compared with adolescents not involved; however, school absence was not associated with bullying involvement. Bullying involvement and GPA showed complete mediation for bullies and bully-victims and partial mediation for victims through sleep duration, conduct problems, and symptoms of depression and attention deficit hyperactivity disorder (ADHD). Bullying is strongly associated with mental health and sleep problems, in addition to lower academic performance. Findings support the importance of addressing bullying involvement during this important developmental period.

Sleep and its relation to health-related quality of life in 3-10-year-old children

Background

Considering the reports of increasing sleep problems in children, affecting health and well-being in young children and their families, we found it important to gain more knowledge about sleep and its correlation to health-related quality of life (HRQoL) in young, healthy children. The aims with this study were to describe sleep quality, sleep duration, and HRQoL in healthy 3–10-year-old children and to test associations between children’s sleep and HRQoL.

Methods

Parents of 160 children (average age: 6.9 years, SD ±2.2) participated in the study. Sleep onset problems (SOP), sleep maintenance problems (SMP), and sleep duration were measured by the Pediatric Insomnia Severity Index (PISI). KIDSCREEN-27 was used to measure HRQoL in five dimensions: physical well-being, psychological well-being, autonomy and parent relation, social support and peers, and school environment.

Results

The average score was 2.2 for SOP (SD +/− 2.2) and 1.3 for SMP (SD +/− 1.6). Few children (2%) were reported to sleep less than 8 h per night. Younger children had statistically significant higher SOP and SMP than older children. Correlations were found between SOP and poor psychological well-being (p < 0.05, ρ = − 0.16), and between SMP and poor physical wellbeing (p < 0.05, ρ = − 0.16), psychological well-being (p < 0.05, ρ = − 0.21), poor school environment (p < 0.01, ρ = − 0.29), autonomy and parent relation (p < 0.05, ρ = − 0.16), and poor social support and peers (p < 0.05, ρ = − 0.19).

Conclusion

Children’s sleep associates with health-related quality of life and needs to be acknowledged in child health care settings and schools.

Effectiveness of school-based programs to reduce bullying perpetration and victimization: An updated systematic review and meta-analysis

Background

Bullying first emerged as an important topic of research in the 1980s in Norway (Olweus), and a recent meta-analysis shows that these forms of aggression remain prevalent among young people globally (Modecki et al.). Prominent researchers in the field have defined bullying as any aggressive behavior that incorporates three key elements, namely: (1) an intention to harm, (2) repetitive in nature, and (3) a clear power imbalance between perpetrator and victim (Centers for Disease Control and Prevention; Farrington). There are many negative outcomes associated with bullying perpetration, such as: suicidal ideation (Holt et al.), weapon carrying (Valdebenito et al.), drug use (Ttofi et al.), and violence and offending in later life (Ttofi et al.). Bullying victimization too is associated with negative outcomes such as: suicidal ideation (Holt et al.), anxiety, low self-esteem and loneliness (Hawker& Boulton). Therefore, school bullying is an important target for effective intervention, and should be considered a matter of public health concern.

Objectives

The objective of this review is to establish whether or not existing school-based antibullying programs are effective in reducing school-bullyng behaviors. This report also updates a previous meta-analysis conducted by Farrington and Ttofi. This earlier review found that antibullying programs are effective in reducing bullying perpetration and victimization and a primary objective of the current report is to update the earlier analysis of 53 evaluations by conducting new searches for evaluations conducted and published since 2009.

Search Methods

Systematic searches were conducted using Boolean combinations of the following keywords: bully*; victim*; bully-victim; school; intervention; prevention; program*; evaluation; effect*; and anti-bullying. Searches were conducted on several online databases including, Web of Science, PscyhINFO, EMBASE, EMBASE, DARE, ERIC, Google Scholar, and Scopus. Databases of unpublished reports, such as masters' and doctoral theses (e.g., Proquest) were also searched.

Selection Criteria

Results from systematic searches were screened thoroughly against the following inclusion criteria. To be included in this review, a study must have: (1) described an evaluation of a school-based antibullying program implemented with school-age participants; (2) utilized an operational definition of school-bullying that coincides with existing definitions; (3) measured school-bullying perpetration and/or victimization using quantitative measures, such as, self-, peer-, or teacher-report questionnaires; and (4) used an experimental or quasi-experimental design, with one group receiving the intervention and another not receiving the intervention.

Data Collection and Analysis

Of the 19,877 search results, 474 were retained for further screening. The majority of these were excluded, and after multiple waves of screening, 100 evaluations were included in our meta-analysis. A total of 103 independent effect sizes were estimated and each effect size was corrected for the impact of including clusters in evaluation designs. Included evaluations were conducted using both randomized (n = 45; i.e., randomized controlled trials/RCTs) and nonrandomized (n = 44; i.e., quasi-experimental designs with before/after measures; BA/EC) methodologies. All of these studies included measures of bullying outcomes before and after implementation of an intervention. The remaining 14 effect sizes were estimated from evaluations that used age cohort designs. Two models of meta-analysis are used to report results in our report. All mean effects computed are presented using both the multivariance adjustment model (MVA) and random effects model (RE). The MVA model assigns weights to primary studies in direct proportion to study level sampling error as with the fixed effects model but adjusts the meta-analytic standard error and confidence intervals for study heterogeneity. The RE model incorporates between-study heterogeneity into the formula for assigning weights to primary studies. The differences and strengths/limitations of both approaches are discussed in the context of the present data.

Results

Our meta-analysis identified that bullying programs significantly reduce bullying perpetration (RE: odds ratio [OR] = 1.309; 95% confidence interval [CI]: 1.24-1.38; z = 9.88; p < .001) and bullying victimization (RE: OR = 1.244; 95% CI: 1.19-1.31; z = 8.92; p < .001), under a random effects model of meta-analysis. Mean effects were similar across both models of meta-analysis for bullying perpetration (i.e., MVA: OR = 1,324; 95% CI: 1.27-1.38; z = 13.4; p < .001) and bullying victimization (i.e., MVA: OR = 1.248; 95% CI: 1.21-1.29; z = 12.06; p < .001). Under both computational models, primary studies were more effective in reducing bullying perpetration than victimization overall. Effect sizes varied across studies, with significant heterogeneity between studies for both bullying perpetration (Q = 323.392; df = 85; p < .001; I 2  = 73.716) and bullying victimization (Q = 387.255; df = 87; p < .001; I 2  = 77.534) outcomes. Analyses suggest that publication bias is unlikely. Between-study heterogeneity was expected, given the large number of studies included, and thus, the number of different programs, methods, measures and samples used.

Authors' Conclusions

We conclude that overall, school-based antibullying programs are effective in reducing bullying perpetration and bullying victimization, although effect sizes are modest. The impact of evaluation methodology on effect size appears to be weak and does not adequately explain the significant heterogeneity between primary studies. Moreover, the issue of the under-/over-estimation of the true treatment effect by different experimental designs and use of self-reported measures is reviewed. The potential explanations for this are discussed, along with recommendations for future primary evaluations. Avenues for future research are discussed, including the need further explain differences across programs by correlating individual effect sizes with varying program components and varying methodological elements available across these 100 evaluations. Initial findings in the variability of effect sizes across different methodological moderators provide some understanding on the issue of heterogeneity, but future analyses based on further moderator variables are needed.

Daily bidirectional associations between adolescent negative peer interactions and sleep in rural China: The moderating effect of parental migration

Left-behind adolescents' biobehavioral adjustment, such as sleep, is poorly understood by research. Using daily data over one week from 90 middle school students (M_age  = 13.69) in rural China, this study investigated daily bidirectional associations between negative peer interactions and sleep disturbances, and how these associations varied by parental migration. On days when adolescents reported higher levels of negative peer interactions, they also reported greater daytime dysfunction the following day. Conversely, when adolescents had more nighttime disturbances the previous night, they also reported higher levels of negative peer interactions. The effects of other sleep disturbance indicators (poor sleep quality the previous night and daytime dysfunction on the same day) on negative peer interactions were significant for adolescents with at least one parent migrating and for those with both parents migrating. Findings highlight the importance of considering dynamic interrelations between interpersonal and biobehavioral factors for the healthy development of left-behind adolescents.

Bullying Victimization and Friendship as Influences on Sleep Difficulty among Brazilian Adolescents

Bullying victimization is associated with poor health-related outcomes, including sleeping problems. The present study aimed to investigate the impact of bullying victimization on sleep difficulty, and the moderating effect of the number of close friends on this association, also exploring differences across genders. The study was based on a nationally-representative survey on adolescent health conducted in Brazilian schools, involving a total of 109,104 participants, enrolled at the 9th year in 2012. The measures used in the analysis included socio-demographic characteristics, bullying victimization, sleep difficulty, and number of close friends. In the multilevel models, reporting more peer victimization was associated with more sleep difficulties (b = .18, t = 50.17, p < .05), with girls reporting more sleep difficulties in association with peer victimization than boys. Reporting having more friends was inversely linked to sleep difficulties (b = -.08, t = -15.26, p < .05), and the association between peer victimization and sleep difficulties was significantly buffered by the number of friends. Moreover, in a three way interaction, there was a marginally significant difference in the effect of friends on the link between victimization and sleep difficulties between boys and girls (b = .02, t = 1.86, p = .06), with the buffering effect of friendships being negligible among girls as opposed to boys. The results indicate a significant association between bullying victimization and sleep difficulties, which seems to be more pronounced among girls, also suggesting that the number of close friends may buffer this association, mainly for boys.

The Validation of Chinese Version of the Victimization Subscale of the Revised Peer Experiences Questionnaire

In China, researchers have translated and validated several scales to measure victimization behavior. The aim of the present study was to validate the Chinese version of the victimization subscale of the Revised Peer Experiences Questionnaire (RPEQ) among primary school students. Primary school students aged between 8 and 13 years old (n = 1048) were asked to complete the Chinese version of the victimization subscale of the RPEQ and related scales. We examined internal consistency and the factor structure using confirmatory factor analysis (CFA). Depression, peer relationship, and sleep scales were used to measure construct validity. The CFA results suggested that the four-factor model had a good model fit. The results indicated that internal reliability was good (Cronbach’s α = 0.83). Construct validity was mostly supported by scores on the Chinese version of the victimization subscale of the RPEQ that strongly and positively correlated with depression and negatively correlated with peer relationship and sleep quality. The present study indicated that the Chinese version of the victimization subscale of the RPEQ has adequate reliability and validity for measuring bullying problems among Chinese primary school students.

Peer Victimization Exposure and Subsequent Substance Use in Early Adolescence: The Role of Sleep Problems

While sleep problems are positively associated with both peer victimization and substance use, previous studies largely have ignored the indirect role sleep problems may play in this association. This three-wave longitudinal study aimed to determine whether sleep problems might link peer victimization to subsequent substance use. Participants were 986 youth (53.7% female, M_age = 12.32 [SD = 0.54 years], 55.6% White, 24.4% Latinx, 22.8% African American/Black, 11.1% Multiracial/Multiethnic, 13.4% Asian/Pacific Islander, and 6.4% Native American) from three U.S. public middle schools. A structural equation model controlling for multiple potential confounds revealed an indirect effect of peer victimization on substance use through sleep problems. Multiple group analyses indicated that the indirect effect was larger for females than for males. Effects did not differ across school socioeconomic level. The results provide further support to include peer victimization when considering factors that may influence adolescent sleep issues and subsequent substance use.

Bullying victimization and obesogenic behaviour among adolescents aged 12 to 15 years from 54 low- and middle-income countries

BACKGROUND

Data on the association between obesogenic behaviours and bullying victimization among adolescents are scarce from low- and middle-income countries.

OBJECTIVES

To assess the associations between obesogenic behaviours and bullying victimization in 54 low- and middle-income countries.

METHODS

Cross-sectional data from the global school-based student health survey were analyzed. Data on bullying victimization and obesogenic behaviours were collected. The association between bullying victimization and the different types of obesogenic behaviour (anxiety-induced insomnia, fast-food consumption, carbonated soft-drink consumption, no physical activity and sedentary behaviour) were assessed by country-wise multivariable logistic regression analysis adjusting for age, sex, food insecurity and obesity with obesogenic behaviours being the outcome.

RESULT

The sample consisted of 153 929 students aged 12 to 15 years [mean (SD) age 13.8 (1.0) years; 49.3% girls]. Overall, bullying victimization (vs no bullying victimization) was significantly associated with greater odds for all types of obesogenic behaviour with the exception of physical activity, which showed an inverse association. Specifically, the ORs (95% CIs) were: anxiety-induced sleep problems 2.65 (2.43-2.88); fast-food consumption 1.36 (1.27-1.44); carbonated soft-drink consumption 1.14 (1.08-1.21); no physical activity 0.84 (0.79-0.89); and sedentary behaviour 1.34 (1.25-1.43).

CONCLUSION

In this large representative sample of adolescents from low- and middle-income countries, bullying victimization was found to be associated with several, but not all, obesogenic behaviours.

Sleep restriction alters children's positive emotional responses, but effects are moderated by anxiety

BACKGROUND

An abundance of cross-sectional research links inadequate sleep with poor emotional health, but experimental studies in children are rare. Further, the impact of sleep loss is not uniform across individuals and pre-existing anxiety might potentiate the effects of poor sleep on children's emotional functioning.

METHODS

A sample of 53 children (7-11 years, M = 9.0; 56% female) completed multimodal, assessments in the laboratory when rested and after two nights of sleep restriction (7 and 6 hr in bed, respectively). Sleep was monitored with polysomnography and actigraphy. Subjective reports of affect and arousal, psychophysiological reactivity and regulation, and objective emotional expression were examined during two emotional processing tasks, including one where children were asked to suppress their emotional responses.

RESULTS

After sleep restriction, deleterious alterations were observed in children's affect, emotional arousal, facial expressions, and emotion regulation. These effects were primarily detected in response to positive emotional stimuli. The presence of anxiety symptoms moderated most alterations in emotional processing observed after sleep restriction.

CONCLUSIONS

Results suggest inadequate sleep preferentially impacts positive compared to negative emotion in prepubertal children and that pre-existing anxiety symptoms amplify these effects. Implications for children's everyday socioemotional lives and long-term affective risk are highlighted.

Associations between the Canadian 24 h movement guidelines and different types of bullying involvement among adolescents

BACKGROUND

The Canadian 24-Hour Movement Guidelines for Children and Youth recommend ≥60 min of physical activity per day, ≤2 h of recreational screen time per day, and 9-11 hours of sleep per night for 11-13 years old and 8-10 hours per night for 14-17 years old.

OBJECTIVE

This study examined the association between combinations of these recommendations and school bullying and cyberbullying victimization and perpetration among adolescents.

PARTICIPANTS AND SETTING

A total of 5615 Canadian students (mean age = 15.2 years) who participated in the 2017 Ontario Student Drug Use and Health Survey (OSDUHS) self-reported their physical activity, screen time, sleep duration, and their involvement in bullying.

METHODS

Logistic regression analyses were adjusted for important covariates.

RESULTS

Meeting the screen time recommendation alone was associated with lower odds of being a victim (OR: 0.64; 95 % CI: 0.46-0.88) or a bully (OR: 0.64; 95 % CI: 0.43-0.96) at school and a victim of cyberbullying (OR: 0.67; 95 % CI: 0.49-0.91). Meeting both the screen time and sleep duration recommendations was associated with lower odds of being a bully (OR: 0.51; 95 % CI: 0.30-0.88). Meeting all 3 recommendations showed stronger associations (i.e. lowest risk) with being a victim of school bullying (OR: 0.32; 95 % CI: 0.19-0.54), a bully-victim (OR: 0.25; 95 % CI: 0.08-0.78) or a victim of cyberbullying (OR: 0.37; 95 % CI: 0.17-0.84).

CONCLUSIONS

Our findings provide evidence that meeting the 24 -h movement guidelines is associated with lower odds of bullying involvement. Encouraging adherence to the 24 -h movement guidelines could be a good behavioural target to prevent involvement in both school bullying and cyberbullying.

Sleep Quality as a Mediator of the Relationship Between Cyber Victimization and Depression

PURPOSE

Cyber victimization is a national mental health concern, especially among adolescents who are digital natives. The current study examined sleep quality as a mediator of the association between cyber victimization and depressive symptoms among adolescents.

DESIGN AND METHOD

A prospective study design was utilized with a community sample of adolescents (N = 801; 57% female; mean age = 14.45, SD = .85) from the eastern United States. Participants completed (a) the Pittsburgh Sleep Quality Index; (b) the Cyber Victimization Scale; and (c) the Center for Epidemiologic Studies Depression Scale Revised via online surveys at baseline and 6-month follow-up. The inter-relationship between variables was analyzed by Hayes' mediation approach.

FINDINGS

Cyber victimization was not directly associated with having depressive symptoms 6 months later when controlling for adolescents' poor sleep quality, sex, and age (direct effect [c'] = .012, t(676) = 1.12, p < .05, confidence interval [CI] -.008, .036). The mediation analysis indicated a significant indirect effect of poor sleep quality on the relationship between cyber victimization and depressive symptoms (ab = .005, bootstrapped standard error [SE] = .003, bootstrapped CI .001, .011; a is the effect of cyber victimization on poor sleep quality; b is the effect of poor sleep quality on depressive symptoms). Specifically, adolescents' cyber victimization led to poor sleep quality (a = .039, SE = .041, p < .05), which also led to increased depressive symptoms (b = .116, SE = .019, p < .001), after controlling for depressive symptoms at baseline, sex, and age. The indirect effect of cyber victimization on depressive symptoms was estimated through poor sleep quality (a*b = .039(.116) = .0045).

CONCLUSIONS

The findings suggest that poor sleep quality may be a mechanism through which cyber bullying is related prospectively to depressive symptoms. Interventions for cyber-victimized adolescents should include assessment of sleep quality and incorporate sleep hygiene education.

CLINICAL RELEVANCE

Adolescents should be screened for cyber victimization and sleep quality. Moreover, promotion of sleep hygiene among cyber-victimized adolescents may help to reduce depression.

Effects of Peer Victimization and Perceived Social Support on Daily Negative Affect and Sleep Outcomes

OBJECTIVES

The purpose of this study was to examine the effects of peer victimization-measured at the daily and cumulative levels-on daily negative affect and multiple sleep parameters including subjective sleep quality, sleep duration, and sleep continuity (i.e., night awakening) among children affected by parental HIV from rural China. This study also aimed to test the moderation effects of perceived social support and sex in these associations.

METHODS

A total of 637 children (50.4% boys, 8-15 years of age) affected by parental HIV self-reported measures on cumulative peer victimization (i.e., the experience of victimization during the past 6 months) and perceived social support. They were also asked to report daily peer victimization, daily negative affect, and sleep outcomes over three consecutive days.

RESULTS

Multilevel models showed that cumulative peer victimization was associated with both daily negative affect and night awakenings, whereas these associations became statistically nonsignificant after controlling for trait negative affect. Daily peer victimization was significantly related to daily negative affect. All these associations were consistent for boys and girls. There were no buffering effects of perceived social support on these associations.

CONCLUSIONS

The results suggest that peer victimization may contribute to daily negative emotional experiences among children affected by parental HIV. Interventions targeting psychological wellbeing among children affected by parental HIV may need to incorporate peer victimization component.

How can schools be integrated in promoting well-being, preventing mental health problems and averting substance-use disorders in urban populations?

PURPOSE OF REVIEW

Mental health and substance use problems are among the most prevalent and challenging problems faced by both high-income and low-income countries worldwide. This review will focus on summarizing scattered evidence of school-based interventions to promote well-being and prevent mental health problems and substance use disorders in children and adolescents.

RECENT FINDINGS

We focus on two main areas of research: promotion of healthy school climate and prevention of bullying. Choosing among available interventions might be challenging, both because of the difficulties in assessing their efficacy and tailoring interventions to specific needs, but also because of the scarcity of intervention in low-resource settings. We provide some guidance on principles encompassed by the available evidence that can be used for policymakers and local communities aiming to integrate mental health promotion and prevention into their schools.

SUMMARY

Developing, implementing, scaling and sustaining school-based interventions is a necessity of our field if we want to move closer to sustainable development goals.

Association Between Peer Victimization and Parasomnias in Children: Searching for Relational Moderators

This cross-sectional study examined the moderating role of support from three key figures (mothers, teachers, friends) in the association between peer victimization and parasomnias in childhood. The sample consisted of 1150 children aged 8 years who attended elementary school. Controlling for potential confounders, hierarchical multiple regressions revealed that peer victimization was associated with a higher level of parasomnias, equally for both girls and boys. However, for girls, the predictive association of peer victimization with parasomnias was moderated by the level of support in relationships with either their parents, their teachers, or their friends. The findings suggest that somatic symptoms such as sleep problems may be a first indicator that a child is being bullied. Because parents, teachers as well as friends can play a key role in preventing the development of parasomnias, it may be useful to help bullied children develop strong bonds within at least one of these relationships.

A Mixed Method Evaluation of a Culturally Adapted, Brief, Bullying Bystander Intervention for Middle School Students

The purpose of this mixed method study was to examine the appropriateness of a brief, bullying bystander intervention (STAC) adapted for a middle school in a low-income, rural community with a predominantly White and Hispanic student body. We were also interested in understanding the experiences of the students who participated in the intervention. Quantitative analysis suggested that students gained knowledge about bullying, increased their confidence to intervene in bullying situations, and used the STAC strategies to intervene in bullying behavior. Analyzing the qualitative data using Consensual Qualitative Research methodology ([CQR] Hill, 2005) revealed four domains in which students a) reported using the STAC strategies across multiple contexts and settings, b) spoke about fears related to intervening in bullying, yet intervened despite those fears, c) described emotional benefits experienced after participating in the intervention and while using the STAC strategies, and d) reported stronger interpersonal relationship after participating in the STAC intervention. This study extends the literature by providing preliminary support for a brief, bystander intervention adapted to address the need for culturally relevant bullying interventions for low-income, rural, ethnically-blended schools.