The influence of childhood sexual abuse on adolescent outcomes: the roles of gender, poverty, and revictimization

'A kindergarten teacher must have 100 eyes and 100 ears!': Kindergarten teachers' experiences coping with child sexual abuse and problematic sexual behavior

BACKGROUND

Child sexual abuse (CSA) and problematic sexual behavior (PSB) are worldwide phenomena that occur across all ages. Kindergarten teachers' proactive involvement can be crucial to the prevention, disclosure and intervention of CSA and PSB. However, research on their experiences of contending with CSA and PSB remains limited.

OBJECTIVE

This study examines kindergarten teachers' experiences in Israel with the CSA and PSB of their students.

PARTICIPANTS AND SETTING

Semi-structured interviews were conducted with 31 teachers: 11 secular Jewish, seven religious Jewish, nine Druze Arab, and four Muslim Arab.

METHODS

A qualitative analysis was conducted using the interview transcripts as data.

RESULTS

The analysis revealed three themes illustrating teachers' professional transformations regarding their knowledge of these phenomena: 1) initial shock, uncertainty and sense of responsibility when exposed to CSA and PSB due to missing knowledge, 2) implementation of prevention and intervention strategies regarding CSA and PSB, and 3) embracing a social role to disseminate CSA and PSB knowledge. The findings indicated that the majority of the teachers went from overwhelming shock and fear due to a lack of knowledge in coping with CSA and PSB to a sense of responsibility as a community leader.

CONCLUSIONS

The fragmentation of the Israeli education system isolates kindergartens, and the lack of training and education for the teachers left them alone when contending with the CSA and PSB of their students. Nevertheless, the participants exhibited remarkable agency and resourcefulness, gaining the necessary knowledge and acting as knowledge agents within their communities.

Gender Differences in the Maltreatment-Youth Offending Relationship: A Scoping Review

Maltreated and child welfare-involved youth are over-represented in juvenile justice systems. These youth are at a greater risk of serious offending and justice system entrenchment relative to their non-maltreated peers. Understanding gender differences in the pathways to justice involvement and the nature of offending among maltreated children is critical for informing policy and practice. Yet, this body of evidence is fragmented. This scoping review identified and narratively synthesized evidence from studies reporting on gender differences in the individual characteristics, maltreatment experiences, child protection involvement and offending profiles of maltreated youth who offend. A comprehensive search of four databases generated 11,568 publications, from which 180 met the review's inclusion criteria. These primary studies included participants aged 8-21 years with a history of childhood maltreatment and youth offending and reported at least one gendered analysis. Some consistent findings were reported across studies. A greater level of child welfare involvement and maltreatment exposure (particularly sexual abuse and multi-type maltreatment) was found for justice involved girls, relative to boys. Maltreated and child welfare-involved boys appear more likely to offend than girls, but findings about how gender moderates the maltreatment-offending relationship were inconsistent. Child welfare systems involvement (particularly foster care and residential care) appeared to be an important moderator for girls, and school performance mediated outcomes for boys. Across this body of evidence, few studies accounted for under-reporting of abuse and neglect when using youth self-report measures of maltreatment. Future research is needed which explicitly explores how gender moderates the maltreatment-offending relationship.

The Effects of Severe Childhood Physical and Sexual Abuse on Adult Socioeconomic Prosperity

Our study utilizes Adverse Childhood Experience (ACE) scores to estimate the relationship between forced sexual intercourse and physical abuse on socioeconomic outcomes in adulthood. ACEs have been shown to have long-term negative impacts on health, mental health, and cognition. We expand upon the literature that analyzes the effects of ACEs on human capital investment and adult socioeconomic outcomes by focusing on the ACE scores pertaining to repeated physical and forced sexual abuse in childhood. Specifically, we estimate probit models using data from the Behavioral Risk Factor Surveillance System to measure the marginal effects of childhood sexual abuse (CSA) and physical abuse on the probability of high school completion, unemployment, and the likelihood of living in poverty in adulthood. We find adults who suffered physical abuse in childhood are more likely to live in poverty. Adult survivors of CSA are less likely to finish high school and more likely to live in poverty. The likelihood of high school noncompletion increases when the individual suffered both forms of abuse. We also find that only those who suffered both forms of abuse in childhood had a greater likelihood of being unemployed and high school noncompletion. We find the negative socioeconomic impact in adulthood is larger for women than for men, implying gender heterogeneity in outcomes of CSA and physical abuse. Researchers should control for the correlation between sexual abuse and physical abuse in childhood, particularly in women, when estimating their effects on socioeconomic outcomes.

Sexual violence against children in the state of Santa Catarina, Brazil: characteristics and factors related to repetitive violence

OBJECTIVE

The aim of this study was to characterize child sexual abuse and investigate the factors related to its repetition in the state of Santa Catarina, Brazil.

METHODS

This is a descriptive and analytical study, with data from 2009-2019 SINAN. Sociodemographic variables related to the circumstances of violence were analyzed. Multivariate logistic regression was used to test factors related to repetitive violence.

RESULTS

A total of 3489 cases of child sexual abuse were reported: 73.3% were girls, the most prevalent age ranged from 6 to 10 years, and 51% reported repetitive violence. The majority was perpetrated by one (85.6%) person, and in cases in which two or more perpetrators were involved, the proportion of occurrence was higher for boys (17%) versus girls (13%). Among the risk factors for the repetition of sexual violence are the place of occurrence being the residence, the perpetrator (the stepfather, the brother, and the father) being under the influence of alcohol, and the age of the child between 6 and 10 years.

CONCLUSION

The profile and factors that help in the identification of repetitive child sexual abuse were presented, such as the authorship being related to stepfathers, parents, and siblings, the perpetrator being under the influence of alcohol, and the victim's age between 6 and 10 years.

Sexual Victimization in the Digital Age: A Population-Based Study of Physical and Image-Based Sexual Abuse Among Adolescents

Adolescents increasingly use social media platforms, and these practices open up new forms of sexual victimization, in particular image-based sexual abuse (IBSA). Few studies have examined prevalence rates and correlates of both physical sexual victimization (PSV) and these new forms of victimization in representative samples. We used data from 5,245 adolescent girls (53%) and 4,580 adolescent boys (47%) from the population-based Young in Oslo Study (mean age 17.1 years, SD = 0.9). Of all respondents, 2.9% had experienced IBSA, 4.3% PSV, and 1.7% both IBSA and PSV in the course of the previous 12 months. Multivariate analyses revealed that PSV victims, after control for other variables, had many characteristics described in previous studies of sexual victimization. Girls had higher prevalence rates than boys, many had been victims of other types of violence, and were part of peer groups with much use of alcohol and drugs. PSV victims also reported early intercourse onset and a higher proportion had been commercially sexually exploited. Lesbian, gay, and bisexual adolescents had higher victimization rates. Victims of both PSV and IBSA had a similar but even more pronounced profile. The IBSA victims were different: They lacked many of the traditional risk factors for sexual victimization, there were no significant gender differences in this group, and IBSA victims more often came from high socioeconomic backgrounds. In conclusion, we observe a reconfigured landscape of sexual victimization patterns among Norway adolescents due to their increasing participation on social media and digital platforms.

Sexual Assault Is the Biggest Risk Factor for Violence against Women in Taiwan-A Nationwide Population Cohort Study from 2000 to 2015

Objective: To understand the main types of risk of violence against women in Taiwan. Materials and methods: This study used the outpatient, emergency, and hospitalization data of 2 million people in the National Health Insurance sample from 2000 to 2015. The International Classification of Diseases, Ninth Revision diagnostic N-codes 995.5 (child abuse) and 995.8 (adult abuse) or E-codes E960−E969 (homicide and intentional injury by others) were defined as the case study for this study, and the risks of first violent injury for boys and girls (0−17 years old), adults (18−64 years old), and elders (over 65 years old) were analyzed. Logistic regression analysis was used for risk comparison. A p value of <0.05 was considered significant. Results: The proportion of women (12−17.9 years old) who were sexually assaulted was 2.71 times that of women under the age of 12, and the risk of sexual assault for girls and adult women was 100 times that of men. Girls who were insured as labor insurance, farmers, members of water conservancy and fishery associations, low-income households, and community insured population (public insurance as the reference group) were significantly more likely to seek medical treatment from sexual assault than adult women. Among them, the risk was greatest for girls from low-income households (odds ratio = 10.74). Conclusion: Women are at higher risk of sexual assault than men regardless of whether they are children or adults, and the highest risk is for women in senior high schools, especially for girls from low-income households. Therefore, the protection of women’s personal autonomy is the direction that the government and people from all walks of life need to continue to strive for. Especially for high school students from low-income households, protection must be strengthened through education, social work, and police administration.

A Recurring Nightmare: Risk and Protective Factors for Revictimization of Child Sexual Abuse in Chile

Child and adolescent victims of sexual crimes are at high risk for further abuse, which translates in a relatively higher risk of revictimization for a child or adolescent who has already been a victim of sexual abuse, compared to one who has not. Although sexual revictimization has been extensively studied in young and adult populations, much less is known about occurrences in childhood and adolescence. In this vein, this article seeks to identify risk of, and protective factors against, revictimization in a census sample of victims under 18 years of age in Chile. Risk and protective factors were studied in a database of all complaints of sexual offenses against children and adolescents registered at two time-points over two years: first, during 2012, and again through January 2015. Using multiple logistic regression, we identified risk factors associated with the probability of sexual revictimization, such as sex of the perpetrator (OR = 3.6 for female perpetrators), previous sexual offenses attributed to perpetrators (OR = 1.8), age of victim at the time of abuse (6-12 OR = .77; 13-17 = OR = .69), and minimization of abuse (OR = 1.3). Finally, interaction tests identified an association between the sex of the original perpetrator and the sex of the victim, as well as an association between the sex of the original perpetrator and the age of the victim. The implications of these findings for victim protection and victimological public policy are discussed.

Dismantling Inequities in Adolescent and Young Adult Health through a Sexual and Reproductive Health Justice Approach

This article provides an overview of the social determinants of adolescents and young adults' (AYAs') sexual and reproductive health (SRH), from a global health perspective. The status of AYAs' SRH constitutes leading health indicators across nations and globally, and reveals the well-being of this population. Throughout the article, AYAs' SRH is approached from a health equity perspective, which includes SRH health rights and reproductive justice. Using this health equity lens, salient topics are presented: sexual abuse/assault among AYAs; immigrant and refugee populations; child, early, and forced marriage; human trafficking; and female genital mutilation. The article also discusses access to SRH services and comprehensive education. Practical implications and resources are offered for healthcare providers for their daily encounters with AYAs, as well as for community, institutional level, and advocacy action. Healthcare providers are well positioned to advance AYAs SRH through mitigating inequities and in so doing, they are assuring the health of the population and future generations.

Sexual Self-Concept and Psychological Functioning of Women With a History of Childhood Sexual Abuse in Hong Kong

Sexual self-concept (SSC) is an important component of health that is closely associated with the well-being of survivors of child sexual abuse (CSA). Compared with non-CSA respondents, SSC of CSA survivors was deleteriously affected, resulting in ineffective psychological functioning (negative self-evaluation, psychological ill-health, and difficulties in interpersonal relationships). Negative SSC (sexual anxiety, sexual depression, and sexual fear) played a significant role in mediating the adverse effects of CSA on psychological functioning. Future studies may recruit a sample with greater variation in CSA characteristics and use externalizing problems as outcome measures to cross-validate findings of this study.

Predisposing Factors and Impact of Child Victimization: A Qualitative Study

Sexual abuse of children is increasing at an alarming rate. This study aims to describe the risk factors and the effects of sexual abuse on children. This unobtrusive qualitative study was conducted on children aged 10 to 18 years old who experienced sexual abuse and followed-up at a psychiatric clinic between the years 2019 and 2021. The information from case records was transcribed. Thematic analysis was performed. Thirty case records were reviewed. The mean age of the victims was 14.6 years; 94% of the victims had experienced vaginal penetration, and 23% of the cases involved incest. The results indicated that socio-psychological predisposing factors involving family structure and dynamic dysfunction, low intrapersonal strength, social influence, and low family socioeconomic status could lead to sexual victimization. This sexual victimization can then lead to emotional turmoil, negative effects on cognitive, academic and social function, negative parental reactions toward the incident, the creation of baby–mother relationships and love–hate relationships, and a lack of goals and hope for the future. Children who experienced sexual abuse may show rape or pregnancy symptoms but may also show entirely non-specific ones. A thorough examination of their history, including biopsychosocial aspects, is necessary to appropriately care for them.

Prevalence of childhood trauma among adults with affective disorder using the Childhood Trauma Questionnaire: A meta-analysis

BACKGROUND

Childhood trauma is associated with major depressive disorder (MDD) and bipolar disorder (BD) in adults. However, no meta-analysis was performed on the prevalence of different types of childhood trauma in adults with affective disorders, using the Childhood Trauma Questionnaire (CTQ).

METHODS

Four databases were used to search articles regarding the prevalence of childhood emotional abuse (CEA), childhood physical abuse (CPA), childhood sexual abuse (CSA), childhood physical neglect (CPN), and childhood emotional neglect (CEN) in patients with MDD and BD using the CTQ.

RESULTS

A total of 17 and 11 articles were found analyzing patients with MDD and BD, respectively. A pooled prevalence rate of 33.0% and 30.0% for CEA, 17.0% and 18.0% for CPA, 19.0% and 22.0% for CSA, 37.0% and 31.0% for CEN, and 31% and 30.0% for CPN was found in patients with MDD and BD respectively. A difference in 95% confidence interval in the CSA rate between men and women was found in patients with MDD in the gender subgroup and in the rate of some types of childhood trauma in the continent subgroup in both patient types.

LIMITATIONS

A limited number of articles were included in some continents, thus, the heterogeneity in the meta-analysis was generally high.

CONCLUSION

The prevalence of CEA, CEN, and CPN in patients with affective disorders was relatively high, whereas that of CPA and CSA was relatively low. These childhood traumas might be affected by continent and gender.

Risk Factors and Services to Reduce Child Sexual Abuse Recurrence

Child sexual abuse (CSA) is associated with a range of negative consequences for victims that are compounded when it recurs. We used the National Child Abuse and Neglect Data System to study a cohort of 42,036 children in 45 U.S. states with sexual abuse reports first confirmed by child protective services (CPS) during 2010 in order to identify children with increased risk for recurrence. A small proportion (3.6%) had a second confirmed sexual abuse report through 2015. In multivariate models, female gender, family hearing and vision problems, other child maltreatment, and other family violence were associated with increased risk of recurrence, while younger children, Hispanic families, and those with substance abuse tended to have less risk. One fourth of recurrence involved the same offender, usually a parent or caretaker. One fourth of cases were referred for any CPS services, which were more likely to be provided for families with poverty, drug or alcohol problems, or other violence. Only substance abuse services significantly reduced recurrence in multivariable models. Those trying to reduce CSA recurrence should recognize that certain case characteristics are associated with greater recurrence, and most CPS services do not significantly reduce CSA recurrence.

Sexting and Young Adolescents: Associations with Sexual Abuse and Intimate Partner Violence

STUDY OBJECTIVE

To explore whether sexting by young adolescent girls and boys is associated with adverse life experiences including exploitative or violent sexual relationships.

DESIGN AND SETTING

Cross-sectional, anonymous survey of a convenience sample of minor adolescents younger than age 18 years recruited while waiting for care in clinics affiliated with a children's hospital in a low-resource, high-poverty, urban community.

PARTICIPANTS

Five hundred fifty-five adolescents aged 14-17 years, 63% girls and 37% boys.

MAIN OUTCOME MEASURES

We measured sexting by asking, "Have you ever sent a sexually suggestive or naked picture of yourself to another person through text or e-mail?" The survey also measured risk behaviors, sexual abuse, intimate partner violence (IPV), and arrest and included a validated depression scale.

RESULTS

Mean age was 15.6 ± 1.1 years; 59% were Hispanic, 28% were black; 44% of girls and 46% of boys ever had sex; 24% of girls and 20% of boys ever sent a sext. More girls than boys reported sexual abuse (16% vs 3%; P < .01), IPV victimization (15% vs 7%; P < .01), and depression (33% vs 17%; P < .01). More boys than girls reported arrest (15% vs 7%; P < .01). Independent associations with sexting for girls were: ever had sex (odds ratio [OR], 4.59; 95% confidence interval [CI], 2.29-9.19; P < .001); sexual abuse (OR, 3.81; 95% CI, 1.80-8.05; P < .001); IPV victim (OR, 2.72; 95% CI, 1.11-6.62; P < .05), and for boys: ever had sex (OR, 4.26; 95% CI, 1.47-12.32; P < .01); sexual abuse (OR, 38.48; 95% CI, 1.48-999.46; P < .05); IPV perpetration (OR, 16.73; 95% CI, 1.64-170.75; 95% CI, P < .05), as well as cannabis use, older age, other race, and arrest.

CONCLUSION

For young adolescents, sexting is independently associated with exploitative and abusive sexual relationships including sexual abuse and IPV with similarities and differences in predictors of sexting for girls and boys.

Harsh physical punishment as a mediator between income, re-reports and out-of-home placement in a child protective services-involved population

Poverty is consistently associated with a higher risk of experiencing child maltreatment, and children from poor families are the majority of children involved in child protective services (CPS). However, the mediators in the relationship from income to CPS involvement are not entirely understood. Using theoretically-informed mediating path models and data from the second National Survey of Child and Adolescent Well-Being (NSCAW II), this study tests the role of harsh physical punishment as a mediator between family income and CPS involvement. CPS involvement was measured by subsequent report of maltreatment and removal to out-of-home care. The direct paths from income to re-report and to removal were significant; with higher income associated with lower risk of report and removal. Lower income was significantly associated with higher rates of harsh physical punishment. However, harsh punishment did not mediate the relationship between income and the outcomes. These results suggest that even within a population primarily comprised of low-income families, lower income is a risk for subsequent reports and removals as well as a risk for higher rates of harsh physical punishment. However, in this sample harsh physical punishment is not the mechanism that results in higher subsequent-reports or removal rates.

The Effects of Gender and Family Wealth on Sexual Abuse of Adolescents

Background: Sexual abuse and sexual assaults against adolescents are among the most significant threats to their health and well-being. Some studies have found poverty to be a risk factor for sexual abuse. The present study investigates the effects of gender and family affluence on the prevalence of sexual abuse of 15-year-old Icelanders in the 10th grade. Methods: The study is based on data collected for the Icelandic part of the Health Behaviour in School-aged Children study in 2014. Standardized questionnaires were sent to all students in the 10th grade in Iceland, of which 3618 participated (85% of all registered students in this grade). Results: Girls were more than twice as likely to be sexually abused as boys (20.2% versus 9.1%). Adolescents perceiving their families to be less well off than others were twice as likely to report sexual abuse as those of ample or medium family affluence. However, family affluence had more effect on the prevalence of abuse in girls than in boys. Conclusion: Female gender and low socioeconomic status may independently contribute to the risk of sexual abuse.

Child Sexual Abuse identified in Emergency Departments Using ICD-9-CM, 2011 to 2014

BACKGROUND

Child sexual abuse (CSA) is poorly identified due to its hidden nature and difficulty surrounding disclosure. Surveillance using emergency department (ED) data may identify victims and provide information on their demographic profile.

OBJECTIVES

Study aims were to calculate the prevalence of visits assigned an explicit or suggestive medical diagnosis code (International Classification of Diseases, Ninth Revision, Clinical Modification [ICD-9-CM]) for CSA and compare the demographic profile of ED visits by coding type.

METHODS

This study examined ED data for children < 10 years of age in Connecticut from 2011 to 2014. Cases involving CSA were identified using explicit and suggestive ICD-9-CM codes and age qualifiers previously established in the literature, and compared across visit characteristics (age, race/ethnicity, sex, and primary insurance payer, and town group).

RESULTS

ICD-9-CM codes for explicit CSA were identified in 110 ED visits, or 1.7 per 10,000 total ED visits. Inclusion of ICD-9-CM codes for suggestive CSA identified an additional 630 visits (9.7 per 10,000 visits). Suggestive codes identified proportionally more visits of younger (50% vs. 38%) and male (35% vs. 22%) children, compared with the explicit code (p < 0.05).

CONCLUSIONS

This study demonstrates one method for identifying CSA cases, which has the potential to increase surveillance of victims in the ED. Results imply that explicit codes alone may overlook most cases, whereas use of suggestive codes may identify additional cases, and proportionally more young and male victims. As the health consequences of CSA are severe, innovative forms of surveillance must be explored to detect a higher number of cases and improve the clinical care of patients.

Characteristics of Different Types of Childhood Violence and the Risk of Revictimization

This study investigates the relationship between the characteristics of different types of childhood violence and adult victimization using two waves of data from a community telephone survey (T1) and a follow-up survey, including 505 cases and 506 controls, aged 17-35 years (T2). The logistic regression analyses showed that exposure to childhood abuse, regardless of type, was associated with adult victimization. Exposure to multiple types of abuse, victimization both in childhood and in young adulthood, and recency of abuse increased these odds. Our findings emphasize the importance of assessing multiple forms of violence when studying revictimization. Practitioners working with children and young adults should be attentive to the number of victimization types experienced and recent victimization to prevent further abuse.

A Review of Child Sexual Abuse: Impact, Risk, and Resilience in the Context of Culture

Child sexual abuse is a problem with both a national and worldwide prevalence. In this review, the authors note that while empirical research has clearly shown the negative impact of child sexual abuse on social, psychological, and sexual functioning later in life, it has also been reported that some individuals remain asymptomatic despite a history of experiencing child sexual abuse. This implies that negative outcomes later in life are not inevitable and illustrates the critical need to elucidate how resilience may moderate the negative impacts of child sexual abuse. In addition to emphasising the role of resilience, this review also underscores the important role that cultural context plays in understanding child sexual abuse, as there are known risk factors and protective factors specific to different cultures. Similarly, one's culture may also influence whether abuse is reported and addressed, and the topic is given special attention in this paper because it is not widely discussed within the existing literature. The impact of child sexual abuse on mental health, sexual health, and social functioning is also discussed.

Predicting Sexual Revictimization in Childhood and Adolescence: A Longitudinal Examination Using Ecological Systems Theory

A substantial proportion of sexual abuse victims report repeat sexual victimization within childhood or adolescence; however, there is limited understanding of factors contributing to revictimization for youth. Thus, the present study examined predictors of sexual revictimization prior to adulthood using ecological systems theory. Records of 1,915 youth presenting to a Child Advocacy Center (CAC) were reviewed to identify individual, familial, and community factors as well as initial abuse characteristics associated with risk for revictimization. Results showed that 11.1% of youth re-presented to the CAC for sexual revictimization. At the individual level, younger children, girls, ethnoracial minority youth, and those with an identified mental health problem were most likely to experience revictimization. Interpersonal factors that increased vulnerability included the presence of a noncaregiving adult in the home, being in mental health treatment, and domestic violence in the family. Community-level factors did not predict revictimization. When factors at all levels were examined in conjunction, however, only individual-level factors significantly predicted the risk for revictimization. Findings from this study provide valuable information for CACs when assessing risk for re-report of sexual abuse and add to the field's understanding of revictimization within childhood.

Further victimization of child sexual abuse victims: A latent class typology of re-victimization trajectories

The association between child sexual abuse (CSA) and risk for re-victimization is well-documented; however, less is known about the temporal progression of re-victimization experiences over the early life-course among CSA survivors, and whether this differs from that of those without known sexual abuse histories. This study investigated whether there are distinct temporal pathways of interpersonal re-victimization between the ages of 10-25 years among medically confirmed CSA cases, and considered whether abuse variables, re-victimization variables, and the presence of other adverse outcomes, were associated with heterogeneity in re-victimization pathways. The data were collected as part of a large-scale data-linkage study in which the medical records of 2759 cases of contact-CSA between 1964 and 1995 were linked, between 13 and 44 years following abuse, to police and public psychiatric databases; cases were compared to a matched community sample (n=2677). Using a subsample of 510 (401 victims; 109 comparisons) individuals with an interpersonal (re)victimization history, we examined the aggregate 'age-(re)victimization' curves for CSA victims and comparisons, respectively. Further, we applied longitudinal latent class analysis to explore heterogeneity in re-victimization trajectories among abuse survivors across their early life-course. Four latent pathways were identified, labeled: Normative; Childhood-Limited; Emerging-Adulthood; and Chronic re-victimization trajectories. Older age at abuse, a criminal history, and mental health problems were uniquely predictive of membership to the more problematic and persistent re-victimization trajectories. Findings indicate that individuals exposed to CSA during adolescence may be particularly vulnerable to poorer re-victimization trajectories, characterized by multiple risk indices, and thus may warrant increased service provision.

Measuring adolescents' exposure to victimization: The Environmental Risk (E-Risk) Longitudinal Twin Study

This paper presents multilevel findings on adolescents' victimization exposure from a large longitudinal cohort of twins. Data were obtained from the Environmental Risk (E-Risk) Longitudinal Twin Study, an epidemiological study of 2,232 children (1,116 twin pairs) followed to 18 years of age (with 93% retention). To assess adolescent victimization, we combined best practices in survey research on victimization with optimal approaches to measuring life stress and traumatic experiences, and introduce a reliable system for coding severity of victimization. One in three children experienced at least one type of severe victimization during adolescence (crime victimization, peer/sibling victimization, Internet/mobile phone victimization, sexual victimization, family violence, maltreatment, or neglect), and most types of victimization were more prevalent among children from low socioeconomic backgrounds. Exposure to multiple victimization types was common, as was revictimization; over half of those physically maltreated in childhood were also exposed to severe physical violence in adolescence. Biometric twin analyses revealed that environmental factors had the greatest influence on most types of victimization, while severe physical maltreatment from caregivers during adolescence was predominantly influenced by heritable factors. The findings from this study showcase how distinct levels of victimization measurement can be harmonized in large-scale studies of health and development.