Peer Victimization In Adolescence Research Articles

Peer victimization in early adolescence and maladjustment in adulthood.

Studies report different effect sizes for associations between peer victimization and later maladjustment. A possible origin of this heterogeneity is the length of the interval between victimization and maladjustment assessments. Effect sizes might also vary as a function of reporter. Longitudinal data from TRAILS, a study of adolescents followed from age 11 to 29 (baseline n = 2229) were used to test whether peer victimization assessed from adolescents themselves, their parents, teachers, and peers predicted internalizing symptoms, thought problems, and somatic complaints at six follow-ups with a temporal distance of up to 19years. Neither self- nor peer-reported victimization predicted later maladjustment. In contrast, parent-reported victimization stably predicted adult maladjustment. Teacher-reported victimization also predicted maladjustment but associations were weaker and largely non-significant when parent reports were accounted for simultaneously. Parent-reported peer victimization has traditionally played a minor role in bullying research as parents are usually not present when victimization occurs. The results of this study however suggest that parents should be listened to when talking about their offspring being victimized.

Correlation Analysis of Non-Suicidal Self-Injury Behavior with Childhood Abuse, Peer Victimization, and Psychological Resilience in Adolescents with Depression.

In recent years, the number of adolescents with depression has been increasing annually, with individuals often exhibiting non-suicidal self-injury (NSSI) behavior. The purpose of this study is to investigate the family (childhood abuse), school (peer victimization), and individual (psychological resilience) factors of adolescents with depression with or without NSSI (the Chinese version of the Functional Assessment of Self-Mutilation [C-FASM] scale), and to analyze the correlation between the above psychological and social factors and the frequency of NSSI, to provide a basis for NSSI prevention and intervention in adolescents with depression. We recruited 355 adolescents with depressive symptoms to participate in this study and divided them into Group NSSI (N = 227) and Group no-NSSI (n-NSSI) (N = 128) based on the C-FASM scale. The Short-Form Childhood Trauma Questionnaire (CTQ-SF), Multidimensional Peer Visualization Scale (MPVS), and Resilience Scale for Chinese Adolescents (RISC) scores were compared between two groups of adolescents. Pearson correlation coefficient was used to analyze the correlation between NSSI frequency and the above scores. Emotional abuse, physical abuse, sexual abuse, emotional neglect, physical neglect, and total CTQ-SF score in Group NSSI were significantly higher than those in Group n-NSSI (all p < 0.001). Physical victimization, verbal victimization, social manipulation, attacks on property, and total MPVS score in Group NSSI were significantly higher than those in Group n-NSSI (p < 0.001, p < 0.001, p = 0.009, p < 0.001, p < 0.001). Goal concentration, emotion regulation, positive perception, family support, interpersonal assistance, and total RISC score in Group NSSI were significantly lower than those in Group n-NSSI (all p < 0.001). The frequency of NSSI was significantly positively correlated with emotional abuse, physical abuse, sexual abuse, emotional neglect, physical neglect, and total CTQ-SF score (r = 0.366, p < 0.001; r = 0.411, p < 0.001; r = 0.554, p < 0.001; r = 0.220, p = 0.001; r = 0.255, p < 0.001; r = 0.673, p < 0.001). The frequency of NSSI was significantly positively correlated with physical victimization, verbal victimization, social manipulation, attacks on property, and total MPVS score (r = 0.418, p < 0.001; r = 0.455, p < 0.001; r = 0.447, p < 0.001; r = 0.555, p = 0.001; r = 0.704, p < 0.001). The frequency of NSSI was significantly negatively correlated with goal concentration, emotion regulation, positive perception, family support, interpersonal assistance, and total RISC score (r = -0.393, p < 0.001; r = -0.341, p < 0.001; r = -0.465, p < 0.001; r = -0.272, p = 0.001; r = -0.160, p = 0.016; r = -0.540, p < 0.001). Our findings highlight the importance of family (childhood abuse), school (peer victimization), and individual (psychological resilience) factors for NSSI in depressed adolescents, and these factors are closely related to NSSI frequency. Maintaining a good family environment, solving the problem of peer victimization at school, and developing corresponding measures to improve psychological resilience are of great significance for improving the mental health of depressed adolescents and reducing the risk of NSSI.

Factors Influencing Peer Victimization from the Perspective of Home-School Partnership: A Moderated Mediation Model

This study aims to explore the overlapping influences of the home and school on peer victimization in adolescents under the notion of home-school partnership and to investigate how the parent-child relationship, teacher-student relationship, teenage depressive symptoms are related to peer victimization by constructing a moderated mediation model. It surveyed 1,710 students in 5-8 grades, using the Inventory of Parent and Peer Attachment, Student-Teacher Relationship Scale (brief version), Multidimensional Peer Victimization Scale, and Center for Epidemiologic Studies Depression Scale (brief version). Research findings show that the parent-child relationship had a direct impact on peer victimization and indirectly affected peer victimization via the mediation of teenage depressive symptoms; and that teacher-student relationships had moderating effects on the three paths in the mediation model, playing roles in enhancing the protection effect of the parent-child relationship against peer victimization, weakening the possible impact of the parent-child relationship on teenager depression, and alleviating the predictive effect of depressive symptoms on peer victimization. The research suggests that home-school partnership is a viable avenue for the prevention of school bullying.

Effects of childhood abuse experiences on peer victimization in adolescence: the mediating role of self-control, aggression, and depression

Effects of childhood abuse experiences on peer victimization in adolescence: the mediating role of self-control, aggression, and depression

Concurrent and longitudinal associations of developmental language disorder with peer victimization in adolescence: evidence from a co-twin study.

Children with developmental language disorder (DLD) experience higher levels of peer victimization than their peers. However, it is not known if such associations reflect genetic and environmental confounding. We used a co-twin control design to investigate the association of language difficulties (DLD and separately poor pragmatic language) with peer victimization and compare the developmental trajectories of peer victimization across adolescence for those with and without language difficulties. Participants were 3,400 pairs of twins in the Twins Early Development Study (TEDS), a UK-based population birth cohort. Language abilities were assessed via online tests at age 11 and peer victimization was self-reported at ages 11, 14 and 16. Language difficulties were defined as language abilities at least -1.25 SD below the mean of the TEDS sample. We performed linear regressions and latent growth curve modeling at a population level and within monozygotic and same-sex dizygotic twin pairs. At population level, youth with DLD experienced higher levels of peer victimization at ages 11 (β = 0.27, 95% Confidence Interval (CI) 0.20-0.35), 14 (β = 0.15, 95% CI 0.03-0.27) and 16 (β = 0.17, 95% CI 0.03-0.32) and a sharper decline in peer victimization between ages 11 and 16 compared to their peers without DLD. The associations between DLD and peer victimization were reduced in strength and not statistically significant in within-twin models. Moreover, there was no difference in the rate of change in peer victimization between twin pairs discordant for DLD. Results were similar for the association of poor pragmatic language with peer victimization. Associations between language difficulties (DLD and separately, poor pragmatic language) and peer victimization were confounded by genetic and shared environmental factors. Identifying specific factors underlying these associations is important for guiding future work to reduce peer victimization among adolescents with language difficulties.

Peer victimization and social anxiety in adolescence: a comparison between migrant and native students in Italy.

The first aim of this study is to investigate the relationship between bullying victimization and social anxiety in native and migrant adolescents in Italy. Specifically, it was hypothesized that migrant adolescents (in comparison with natives) experience more frequent episodes of bullying victimization, which in turn, may be a risk factor for the development of social anxiety symptoms. The second aim of the study is to explore the relationships from reflected minority categorization to perceived ethnic discrimination at school and social anxiety symptoms, in the subgroup of migrant students. Results showed that the migrant (vs. native) status was predictive of higher scores in social anxiety dimensions (Fear of Negative Evaluation, Social Avoidance and Distress in New Situations, and General Social Avoidance Distress), via the mediating effect of increased peer victimization. Moreover, in the subgroup of migrant participants, an indirect effect of reflected minority categorization on social anxiety was observed, mediated by perceived ethnic discrimination at school. These findings may contribute to the understanding of health inequalities among migrant and native people in the Italian context. Limitations and practical implications of the study were discussed.

A Longitudinal Study of Forms of Peer Victimization and Internalizing Problems in Adolescence.

The present study examined developmental changes in forms of peer victimization and longitudinal associations between forms of peer victimization and internalizing problems among Japanese adolescents. Participants were 271 students (Time 1M age = 12.72, SD = 0.45, 50% girls) from 9 classrooms and 2 public middle schools in Japan. Data were collected at five time points from 7th to 9th grade. Growth curve modeling (GCM) of mean changes indicated that relational victimization and internalizing problems decreased over three school years. Overt victimization first decreased and then remained relatively constant toward the end of the assessment. In addition, the results of the Random Intercept Cross-Lagged Panel Model (RI-CLPM) indicated that the random intercept of relational victimization was positively and strongly correlated with that of internalizing problems. Although the random intercept of overt victimization was positively correlated with that of internalizing problems, the effect size was small to moderate. In general, there were no significant within-person changes between relational and overt victimization and internalizing problems. However, some exceptions were noted towards the end of middle school, such that higher relational victimization was associated with increases in internalizing problems, which in turn led to more relational victimization. There were no gender differences in the above trajectories or in the transactional models. The findings regarding at-risk youth who are vulnerable to relational and overt victimization are discussed from clinical, cultural, and developmental perspectives.

Developmental interactions between peer victimization and depressive symptoms in adolescents: A latent change score analysis.

Peer victimization and depressive symptoms are highly relevant risks during adolescence. Understanding the dynamic patterns of interactions between peer victimization and depressive symptoms as well as gender differences in these variables can improve intervention strategies for adolescents navigating this critical transition period. In the present study, a large sample of Chinese adolescents reported peer victimization and depressive symptoms in four survey waves at six-month intervals. A total of 2534 adolescents (51.9% boys, M = 12.98 ± 0.60 years) were included in the latent change score (LCS) analysis. The results supported the reciprocal effects model obtained in the full sample. Changes in peer victimization were influenced by prior changes in depressive symptoms over time, and changes in depressive symptoms were influenced by prior levels of peer victimization. There were also gender differences, with boys exhibiting depressive symptom-driven effects on peer victimization, while girls exhibiting peer victimization-induced depressive symptoms. The dynamic relationships between peer victimization and depressive symptoms that promote and constrain each other in adolescents are elucidated in this study. Differentiating effects on boys and girls is crucial for enhancing the effectiveness of practical interventions.

The Interplay of Peer Victimization and Parasympathetic Nervous System Activity on Acute Inflammatory Stress Responses in Adolescence.

This study examined the extent to which adolescent peer victimization predicted acute inflammatory responses to stress, and whether both resting parasympathetic nervous system (PNS) activity and PNS stress reactivity moderated this association. 83 adolescents (Mage = 14.89, SDage = 0.52, 48% female) reported their history of peer victimization and were exposed to a standardized social stress task before and after which dried blood spot samples were collected to assay inflammatory markers. Inflammatory responses to the stress task were assessed with a latent inflammatory change factor using the cytokines interleukin-6 (IL-6), interleukin-10 (IL-10), and tumor necrosis factor-α (TNF-α). PNS functioning, indexed by high-frequency heart rate variability, was measured at rest and during the stressor. Contrary to hypotheses, analyses revealed no direct relation between peer victimization and acute inflammatory responses, and resting PNS activity did not moderate this association. However, peer victimization predicted stronger inflammatory responses among adolescents with weaker PNS reactivity to the stress task (b = 0.63, p = .02). This association was not observed among adolescents with stronger PNS reactivity, for whom a negative but non-significant trend was found. Weaker PNS reactivity may thus indicate victimized adolescents' vulnerability for acute inflammatory responses, whereas stronger PNS reactivity may indicate adolescents' resilience to a social stressor.

Developmental Pathway from Childhood Abuse to Adolescent Peer Victimization: The Role of Rejection Sensitivity and Aggression.

Despite the well-established relationship between early experiences of victimization and later re-victimization, little is known about the exact mechanism of this cycle of victimization. The present study examined whether the route from rejection sensitivity to aggression mediates the associations between different forms of childhood abuse and later peer victimization longitudinally. A total of 3525 adolescents (56.6% male; Mage = 13.21 ± 0.85) participated in this three-wave study, with a 6-month lag and a 9-month lag respectively. The results indicated that the association between childhood emotional abuse and peer victimization were independently mediated by aggression, and sequentially mediated by rejection sensitivity and aggression in both sexes. Sex differences existed regarding the association between childhood physical abuse and aggression, such that only in adolescent boys did physical abuse show significant effect on aggression, resulting in later peer victimization. In general, these findings suggest that maladaptive social-cognitive processes and behavioral patterns are crucial for understanding the mechanism of the vicious cycle of victimization, and sex differences must be considered when examining different types of childhood abuse.

Association Between Peer Victimization, Gender Diversity, Mental Health, and Recurrent Headaches in Adolescents: A Canadian Population-Based Study.

It is unknown whether bullying and gender diversity are associated with increased headache frequency in adolescents. Our study aimed to assess the association between peer victimization, gender diversity, and frequent recurrent headaches in adolescents, while controlling for age, sex, socioeconomic status, and potential confounders (mood and anxiety disorders, suicidality). This was a cross-sectional observational study of adolescents aged 12-17 years using data from a Canadian population-based health survey. Headache frequency was dichotomized into "≤once/wk" or ">once/wk" (i.e., frequent recurrent headaches). Logistic regression was used to quantify the association between frequent peer victimization (overt or relational), gender diversity (female sex at birth + male gender, male sex at birth + female gender, or gender diverse), mood/anxiety disorder, suicidality, and the odds of frequent recurrent headaches. The fully adjusted multivariable logistic regression model included all exposures and was controlled for age, sex, and socioeconomic status. Bootstrap replicate weighting was used to account for survey design effects. There were an estimated 2,268,840 eligible participants (weighted sample size) (mean age = 14.4 years, 48.8% female, 0.5% gender diverse), and 11.2% reported frequent recurrent headaches. Frequent recurrent headaches were associated with older age (odds ratio [OR] = 1.26 per year of age, 95% CI 1.20-1.31), female sex (OR = 2.89, 95% CI 2.47-3.37), and being gender diverse (OR = 3.30, 95% CI 1.64-6.63, adjusted for age/sex). Youth with frequent headaches had higher odds of experiencing both overt and relational bullying compared with peers (OR = 2.69, 95% CI 2.31-3.14, and OR = 3.03, 95% CI 2.58-3.54, adjusted for age/sex). In the fully adjusted model, frequent headaches were no longer associated with gender diversity (OR = 1.53, 95% CI 0.63-3.69) but were still associated with frequent overt and relational peer victimization (OR = 1.82, 95% CI 1.41-2.34, and OR = 1.54, 95% CI 1.17-2.03, respectively), suicidality (OR = 1.83, 95% CI 1.44-2.32), and having a mood or anxiety disorder (OR = 1.50, 95% CI 1.01-2.21, and OR = 1.74, 95% CI 1.24-2.45, respectively). In a model adjusted for age, sex, and mood/anxiety disorders, the risk of suicidality increased incrementally with headache frequency. Peer victimization and suicidality may be associated with higher headache frequency in adolescents with headaches, independently of mood and anxiety symptoms. Gender-diverse adolescents may have a higher risk of experiencing frequent headaches when compared with cisgender peers, and this may be explained by associated psychosocial factors (anxiety, depression, suicidality, and peer victimization).

Direct and Indirect Effects of Adolescent Peer Victimization and Mental Health on Academic Achievement in Early Adulthood: A 6-Year Longitudinal Cohort Study

Using a three-wave (mean age 14.4, 17.4, and 20.4 years) longitudinal design ( N = 1,834; 55.6% females), we set out to map direct and indirect effects of adolescent peer victimization and mental health on academic achievement in early adulthood, and the buffering effect of positive family relations. Data was collected in Sweden 2012 to 2018. We found concurrent (βs = .13–.28) but no longitudinal transactional effects between peer victimization and symptoms of depression, anxiety, and conduct disorder (CD). Peer victimization, depression, and CD had longitudinal direct effects on poorer academic achievement in early adulthood (βs = .09–.11). Positive family relations did not moderate the effects. The results indicate that prevention and interventions against peer victimization and poor mental health may contribute to a higher proportion of individuals graduating from high school.

Childhood trauma, peer victimization, and non-suicidal self-injury among Chinese adolescents: a latent variable mediation analysis

BackgroundChildhood and peer experiences can influence adolescents’ perceptions of interpersonal relationships, which can, in turn, influence their emotional states and behavior patterns. Non-suicidal self-injury (NSSI) is now a common problem behavior among adolescents. The present study examined the role of childhood trauma and peer victimization in adolescents’ NSSI.MethodsA cross-sectional survey was conducted among 1783 adolescents (1464 girls and 318 boys) in the psychiatric outpatient clinics or wards of 14 psychiatric hospitals or general hospitals in nine provinces in China. Data were collected using the Multidimensional Peer Victimization Scale (MPVS), Short-form Childhood Trauma Questionnaire(CTQ-SF), and Functional Assessment of Self-Mutilation (FASM). Structural equation modeling (SEM) with latent variables was used to demonstrate the mediating role of peer victimization in the association between childhoodtrauma and NSSI.ResultsThe SEM analysis demonstrated that peer victimization plays a partial mediating role in the relationship between childhood trauma and NSSI. In addition, several covariates (such as age, gender, education level, and place of residence) effectively regulated the relationship between peer victimization and NSSI.ConclusionIn future studies of NSSI among Chinese adolescents, attention should be paid to the roles of childhood trauma and peer bullying; there is a temporal sequence between these two variables and, to some extent, childhood trauma can have an impact on bullying during adolescence which, in turn, influences NSSI behavior.

The impact of peer victimization on Chinese left-behind adolescent suicidal ideation: The mediating role of psychological suzhi and the moderating role of family cohesion

BackgroundThe detrimental impact of peer victimization on suicidal thoughts has been tested in numerous previous studies, but the underlying mechanisms tying the two together remain unclear, particularly for left-behind adolescents in China, who are defined as the adolescent staying behind in rural areas for a duration exceeding six months while having one or both parents relocate to urban areas for employment purposes. ObjectiveThis study intends to investigate the relationship between peer victimization and suicidal ideation in Chinese left-behind adolescents and the mediating effect of psychological suzhi (a comprehensive positive quality that related to developmental, adaptive, and creative behaviors) and the moderating role of family cohesion. Participants and settingsA total of 417 Chinese left-behind adolescents (Mage at Time 1 = 14.84 ± 1.08 years; 57.55 % male) were recruited for the study. Participants came from rural counties of central China in Hunan province which has suffered a large labor migration. MethodsWe conducted a two-wave longitudinal study with six-month intervals. Participants completed the measures of the Chinese peer victimization scale for children and adolescents, the adolescent's psychological suzhi questionnaire, the self-rating idea of suicide scale, and the cohesion dimension of the family adaptability cohesion scale. ResultsPath modeling results indicated that psychological suzhi partially mediated the link between peer victimization and suicidal ideation. Family cohesion moderated the association between peer victimization and suicidal ideation. The link between peer victimization and suicidal ideation was weaker for left-behind adolescents with higher family cohesion. ConclusionPeer victimization was found to diminish psychological suzhi, which in turn increases the risk of suicidal ideation. However, family cohesion buffered the negative effect of peer victimization on suicidal ideation, suggesting that left-behind adolescents with greater family cohesion may be better equipped to prevent suicidal ideation, which has implications for future family and school education and provides some ideas and a foundation for future research.

The relationship between gender, peer victimization, mental health, and frequent headaches in adolescents: A Canadian population-based observational study (P14-12.002)

The relationship between gender, peer victimization, mental health, and frequent headaches in adolescents: A Canadian population-based observational study (P14-12.002)

Implementation of a multiverse approach in developmental research: The longitudinal relation between self‐esteem and peer victimization

AbstractResearch in social sciences has been questioned in the past decade due to the failure to replicate earlier work. To improve the trust in results, best practices that reduce data‐analytical flexibility have been proposed, such as preregistration. Another more recent such development regards the multiverse approach. The current study sought to demonstrate the benefits of applying the multiverse approach within developmental psychology. Using the relation between self‐esteem and peer victimization in adolescence as an example, we examined how both the concurrent as well as longitudinal association was impacted by data‐analytical decisions, such as the operationalization of variables, treatment of outliers, inclusion of covariates, and paths estimated in the model. Indeed, through the multiverse approach, we showed that and how these decisions matter for the model fit and estimates of the associations. We were thus able to illustrate that the multiverse approach increases transparency, makes it possible to examine the robustness of effects and can help advance theory building. Limitations of this approach as well as recommendations for other researchers are discussed.

Mother-Adolescent Agreement Concerning Peer Victimization:Predictors and Relation to Coping.

The current study analyzed adolescent, maternal, and family factors associated with mother-adolescent agreement on reports of verbal, relational, and physical forms of peer victimization. It also assessed the relationship between mother-adolescent agreement and adolescents' coping response to peer victimization. The sample consisted of 783 adolescents (337 male, 446 female) between the ages 13-15 and their mothers. Consistent with previous research, results showed mother-adolescent agreement to be low, with kappa coefficients ranging from .15 to .30 on items measuring adolescent peer victimization. A multinomial logistic regression analysis indicated that adolescent factors (age, gender, depression symptomology), maternal factors (depression symptomology, history of victimization), and family cohesion were significantly related to mother-adolescent agreement on reports of peer victimization. Lastly, mother-adolescent agreement on reports of adolescent peer victimization was associated with adolescents' increased use of adult support seeking and problem-solving and decreased use of passive-coping, distancing, and revenge-seeking as a coping response to peer victimization.

Childhood maltreatment and adolescents’ peer victimization: The effect of security, school connectedness and gender

BackgroundBased on the cycle of violence theory, exposure to childhood maltreatment is more likely to be revictimized in adolescence. However, the internal mechanism between childhood maltreatment and adolescents’ peer victimization is still not precise. ObjectivesCurrent study aimed to explore the internal mechanism between childhood maltreatment and adolescents’ peer victimization through the mediating role of security and moderating roles of gender and school connectedness.Participants.A sample of 2758 adolescents (M = 15.09, SD = 1.61), including1353 junior school students and 1405 high school students, participated in the study. MethodsAll participants completed self-report questionnaires regarding childhood maltreatment, sense of security, peer victimization, and school connectedness. Results(1) Childhood maltreatment positively predicted adolescents’ peer victimization. (2) Security played a mediating role between childhood maltreatment and peer victimization. (3) Gender played a moderating role between security and peer victimization. Contrary to girls, security had a more substantial impact on boys’ peer victimization. (4) School connectedness was a crucial protective factor that could inhibit childhood maltreatment’s adverse effects on security and peer victimization. And adolescents with high school connectedness were at lower risk of feeling insecurity and exposure to peer victimization in adolescence than those with low school connectedness. ConclusionsThe findings highlight security and school connectedness are crucial factors in protecting adolescents from peer victimization. Besides, much attention should focus on boys, as boys with insecurity are more likely to be victimized by peers.

Is it my fault? The role of the feeling of guilt in adolescent peer victimization.

The aim of this study was to analyze the relationships between feelings of guilt, peer victimization in school, and loneliness based on adolescents' gender. A total of 671 Spanish students (50.7% boys), aged 10-16 years old (M = 13.04, SD = 1.80) from six public primary and secondary schools participated in the study. A Multivariate Analysis of Variance (3 × 2) was calculated. Adolescents with high levels of guilt presented greater physical, verbal, and relational victimization, as well as higher levels of loneliness. In addition, boys high in guilt had the highest scores in overt physical victimization, while girls high in guilt had the highest levels of loneliness. Results obtained suggest that adolescents with greater feelings of guilt feel responsible for being victims of peer aggression and for feeling lonely. These findings suggest the need to address the feeling of guilt, taking into account the gender perception.

Associations between epigenetic aging and childhood peer victimization, depression, and suicidal ideation in adolescence and adulthood: A study of two population-based samples.

Background: Prior studies indicate that peer victimization (including bullying) is associated with higher risk for depression and suicidal ideation across the life course. However, molecular mechanisms underlying these associations remain unclear. This two-cohort study proposes to test whether epigenetic aging and pace of aging, as well as a DNA methylation marker of responsive to glucocorticoids, are associated to childhood peer victimization and later depressive symptoms, or suicidal ideation. Methods: Cohort 1: Epigenome-wide DNA methylation (EPIC array) was measured in saliva collected when participants were 10.47years (standard deviation = 0.35) in a subsample of the Quebec Longitudinal Study of Child Development (QLSCD, n = 149 participants), with self-reported peer victimization at 6-8years, depressive symptoms (mean symptoms, and dichotomized top 30% symptoms) and suicidal ideation at 15-17years. Cohort 2: Epigenome-wide DNA methylation (EPIC array) was measured in blood collected from participants aged 45.13years (standard deviation = 0.37) in a subsample of the 1958 British Birth cohort (1958BBC, n = 238 participants) with information on mother-reported peer victimization at 7-11years, self-reported depressive symptoms at 50years, and suicidal ideation at 45years. Five epigenetic indices were derived: three indicators of epigenetic aging [Horvath's pan-tissue (Horvath1), Horvath's Skin-and-Blood (Horvath2), Pediatric-Buccal-Epigenetic age (PedBE)], pace of aging (DunedinPACE), and stress response reactivity (Epistress). Results: Peer victimization was not associated with the epigenetic indices in either cohort. In the QLSCD, higher PedBE epigenetic aging and a slower pace of aging as measured by DunedinPACE predicted higher depressive symptoms scores. In contrast, neither the Horvath1, or Horvath2 epigenetic age estimates, nor the Epistress score were associated with depressive symptoms in either cohort, and none of the epigenetic indices predicted suicidal ideation. Conclusion: The findings are consistent with epigenome-wide and candidate gene studies suggesting that these epigenetic indices did not relate to peer victimization, challenging the hypothesis that cumulative epigenetic aging indices could translate vulnerability to depressive symptoms and suicidal ideation following peer victimization. Since some indices of epigenetic aging and pace of aging signaled higher risk for depressive symptoms, future studies should pursue this investigation to further evaluate the robustness and generalization of these preliminary findings.