The influence of child maltreatment on substance or alcohol use in 30‐year‐old adults: A birth cohort study

Health effects associated with exposure of children to physical violence, psychological violence and neglect: a Burden of Proof study

The health toll of child maltreatment or violence against children (VAC) has not yet been comprehensively evaluated. Here, in our systematic review and meta-analyses, we focused on the health impacts of physical violence, psychological violence and neglect during childhood. Utilizing the Burden of Proof methodology, which generates conservative measures of association while accounting for heterogeneity between input studies, we evaluated 35 associations between VAC and adverse health outcomes, identifying 27 statistically significant links. The associations between physical violence and major depressive disorder, ischaemic heart disease, alcohol use disorder, eating disorders and drug use disorders were rated as moderately weak, reflecting a small effect size and/or inconsistent evidence. The minimum increased risk ranged from 16% for depression to 2% for drug use disorders. Psychological violence showed similar moderately weak associations with drug use disorders (8% minimum risk increase), migraine (7%) and gynaecological diseases (2%). Neglect was linked to at least a 15% increased risk for anxiety disorders. The other 18 associations were weaker due to smaller effect sizes and/or less consistent evidence. Despite the limitations of the existing evidence, our analysis highlights substantial health impacts for VAC survivors, underscoring the need for health system prioritization and continued efforts to eliminate all forms of VAC.

Emergency department presentations and admission for common mental disorders following agency-notified child maltreatment at 40-year follow-up: results from the Childhood Adversity and Lifetime Morbidity study

BACKGROUND

Most evidence on associations between child maltreatment and subsequent common mental disorders (CMDs) comes from retrospective studies. Such findings may be affected by recall bias. Prospective studies of reports to statutory agencies are less common and may be subject to attrition bias.

AIM

To examine the associations of child maltreatment with emergency department presentations and in-patient admissions for CMDs in individuals up to 40 years old.

METHOD

Queensland-wide administrative health data were linked to a prospective birth cohort, including agency-reported and substantiated notifications of child maltreatment. Outcomes were emergency department presentations and in-patient admissions for CMDs.

RESULTS

There were 6087 participants, of which 10.1% had been the subject of a child maltreatment notification. Admissions for CMDs occurred in 198 participants (3.3%) and emergency department presentations in 291 (4.8%). In the adjusted analysis, substantiated child maltreatment was associated with both admissions (odds ratio 1.92; 95% CI = 1.19-3.00) and emergency department presentations (odds ratio 2.10; 95% CI = 1.45-3.03). All agency-reported and substantiated child maltreatment subtypes (neglect, physical, sexual and emotional abuse) were associated with emergency department presentations for CMDs and notifications for more than one child maltreatment subtype. In the subgroup analysis, child maltreatment was associated with emergency department presentations for both anxiety (odds ratio 2.73; 95% CI = 1.68-4.43) and depression (odds ratio 2.23; 95% CI = 1.62-3.26) but with admissions only for depression (odds ratio 2.10; 95% CI = 1.15-3.84).

CONCLUSIONS

Child maltreatment is associated with both emergency department presentations and hospital admissions for CMDs in individuals up to 40 years old. Screening for child maltreatment in people presenting to hospital with CMDs may be indicated, as well as a greater awareness that survivors of child maltreatment may be at higher risk of developing such symptoms.

Global trends and differences in the burden of alcohol use disorders attributable to childhood sexual abuse by sex, age, and socio-demographic index: Findings from the Global Burden of Disease Study 2019

BACKGROUND

Childhood sexual abuse (CSA) is a severe global problem associated with alcohol use disorder (AUD). Previous studies have confirmed this relationship; however, there is a lack of research on the disease burden of AUD attributable to CSA.

OBJECTIVE

To analyze global spatiotemporal trends and differences in the disease burden of AUD attributable to CSA and its relationship with age, sex, and the sociodemographic index (SDI).

PARTICIPANTS AND SETTING

Data from the Global Burden of Disease 2019 Public Database.

METHODS

Summary exposure value (SEV) was used to evaluate CSA. Disability-adjusted life year (DALY), years lived with disability (YLD), years of life lost (YLL), and their annual rates of change were used to evaluate disease burden. Cluster analysis based on Ward's method was used to examine the global burden associated with age, sex, and SDI. A 95 % uncertainty intervals (UI), excluding 0, was considered statistically significant.

RESULTS

In 2019, 1.63 million (95 % UI 0.23-3.90 million) DALYs of AUD were caused by CSA and the age-standardized rates (ASRs) of DALY was 19.77 (95 % UI 2.78-47.46) globally. Annual rates of change in DALY of people over 65 years of age increased from 1990 to 2019 in all regions except the High-middle SDI regions. The ASRs of DALY of females in High SDI regions, were always at a much higher level than other SDI regions, and showed an upward trend from 1990 to 2019 (DALY 1990: 20.38 [95 % UI 2.87-47.77], 2019: 23.61 [95 % UI 3.55-54.94]).

CONCLUSIONS

Substantial geographical differences were observed in the burden of AUD attributable to CSA. The level of CSA exposure was inconsistent with the related burden of AUD in different regions according to the sociodemographic index. The burden of disease increased in the elderly population and in females in high sociodemographic index regions.

Associations between child maltreatment and hospital admissions for alcohol and other substance use-related disorders up to 40 years of age: Results from the Childhood Adversity and Lifetime Morbidity study

BACKGROUND AND AIMS

Evidence on the associations between child maltreatment (CM), alcohol use disorders (AUDs) and other substance use disorders (SUDs) comes largely from retrospective studies. These rely on self-reported data, which may be impacted by recall bias. Using prospective CM reports to statutory agencies, we measured associations between CM notifications and inpatient admissions for AUDs and SUDs up to 40 years of age.

DESIGN, SETTING AND PARTICIPANTS

Observational study linking administrative health data from Queensland, Australia to prospective birth cohort data comprising both agency-reported and substantiated notifications of CM.

MEASUREMENTS

Outcomes were inpatient admissions for AUDs and SUDs based on ICD-10-Australian modification (AM)-coded primary diagnoses. Unadjusted and adjusted logistic regression analyses were undertaken.

FINDINGS

Ten per cent (n = 609) of the cohort had a history of agency-reported or substantiated CM notifications before age 15. These individuals had higher adjusted odds of being admitted for AUDs and SUDs. For AUDs, the adjusted odds of inpatient admission were 2.86 [95% confidence interval (CI) = 1.73-4.74] greater where there was any previous agency-reported CM and 3.38 (95% CI = 1.94-5.89) greater where there was any previous substantiated CM. For SUDs, the adjusted odds of inpatient admission were 3.34 (95% CI = 2.42-4.61) greater where there was any previous agency-reported CM and 2.98 (95% CI = 2.04-4.36) greater where there was any previous substantiated CM.

CONCLUSIONS

People with a history of child maltreatment appear to have significantly higher odds of inpatient admissions for alcohol use disorders and other substance use disorders up to 40 years of age compared to people with no history of child maltreatment.

Emergency department presentations for deliberate self-harm and suicidal ideation in 25-39 years olds following agency-notified child maltreatment: results from the Childhood Adversity and Lifetime Morbidity (CALM) study

AIMS

To compare prospective reports of child maltreatment (CM) with emergency department (ED) presentations for deliberate self-harm (DSH) and suicidal ideation in individuals aged between 25 and 39 years old.

METHODS

Linked records between the Mater-University of Queensland Study of Pregnancy birth cohort and Queensland administrative health data were used, which included notifications to child protection agencies for CM. ED presentations for individuals aged between 25 and 39 years of age for suicidal ideation, suicidal behaviour or poisoning by paracetamol or psychotropic medications where the intention was unclear were examined using logistic regression analyses.

RESULTS

A total of 609 (10.1%) individuals were the subject of one or more CM notifications for neglect or physical, sexual or emotional abuse before the age of 15 years. Of these, 250 (4.1%) presented at least once to ED for DSH and/or suicidal ideation between 25 and 39 years of age. In adjusted analysis, any notification of CM was associated with significantly increased odds of presenting to ED for these reasons (aOR = 2.80; 95% CI = 2.04-3.84). In sensitivity analyses, any notification of CM increased the odds of the combined outcome of DSH and suicidal ideation by 275% (aOR = 2.75; 95% CI = 1.96-4.06) and increased the odds of DSH alone by 269% (aOR = 2.69; 95% CI = 1.65-4.41).

CONCLUSIONS

All CM types (including emotional abuse and neglect) were associated with ED presentations for DSH and suicidal ideation in individuals between 25 and 39 years of age. These findings have important implications for the prevention of DSH, suicidal ideation and other health outcomes. They also underscore the importance of trauma-informed care in ED for all individuals presenting with DSH and suicidal ideation.

Self-Reported and Agency-Notified Child Abuse as Contributors to Suicidal Behaviour in a Population-Based Birth Cohort Study at 30-Year-Follow-Up

This was a record-linkage analysis of a birth cohort to examine the association between self-reported self-harm in adulthood and childhood maltreatment (CM) as prospectively notified to authorities and self-reported on the Child Trauma Questionnaire. There were 2507 participants at 30-year follow-up with data on both CM and self-reported self-harm including an intent to die. Of the participants, 304 (12.1%) had self-harmed at some time in their lives while 150 (4.2%) had wanted to die. The prevalence of self- and agency-reported maltreatment was 513 (20.5%) and 143 (5.7%) respectively. On adjusted analyses, CM irrespective of reporting source showed significant associations with both suicidal outcomes. Physical and emotional abuse showed the strongest associations while findings for neglect were mixed. The only association for sexual abuse was for self-reported maltreatment and intent to die but numbers may have been under-powered.

The Effects of Childhood Adversity and Self-Regulation on the Well-Being of Adults with Delinquency Histories: A Mediation Model

PURPOSE

Most youth with delinquency histories experience childhood adversity leaving them vulnerable to poor adult well-being. Previous research indicates that self-regulation difficulties could explain how childhood adversity affects adult well-being. Yet, very few studies target adult self-regulation intervention. Therefore, this study examined the intervening effects of emerging adult self-regulation on the association between childhood adversity and adult well-being.

METHOD

Using data from the first four waves of the Add Health Study, the researchers conducted structural equation modeling for mediation with bootstrapping. The researchers tested the mediation effects of emerging adult self-regulation on the association between childhood adversity (child maltreatment and violent victimization) and later adult well-being (mental health problems, alcohol and drug use, criminal behaviors) among people with delinquency histories and/or arrest prior to age 18 (N = 1,792).

RESULTS

Several significant direct effects and one partial mediation effect were found. For example, child maltreatment significantly predicted adult mental health problems and criminal behaviors. Self-regulation (via the dissatisfaction with life and self subscale) mediated the association between child maltreatment and adult mental health problems.

DISCUSSION

Findings highlight the need for social workers to focus on prevention services and trauma-informed treatment for people with delinquency histories. In addition, evidence-based practice requires self-regulation interventions for adults with histories of childhood adversity and delinquency to focus on their emotional and cognitive functioning as well as self-esteem.

CONCLUSION

Implementing self-regulation interventions during emerging adulthood can be useful to mitigate later adult mental health problems among people with histories of childhood adversity and delinquency.

Child maltreatment among victims of violent death: an analysis of national violent death reporting system data, 2014-2018

BACKGROUND

Limited information is known about the impact of childhood maltreatment on lifetime risk of violent death. This study aimed to compare manner of death, demographics, age at time of death, and the presence of a mental health or substance use disorder among decedents of violent deaths with a history of child maltreatment to those without.

METHODS

This cross-sectional study compared characteristics of pediatric and adult violent deaths with and without a history of child maltreatment that were captured in the National Violent Death Reporting System from 2014 through 2018.

RESULTS

Decedents who were male, multiracial, and had adulthood substance or mental health disorders were more likely to have a history of maltreatment. All-age decedents with a history of maltreatment were more likely to die by homicide. Adult decedents with a history of maltreatment were more likely to die by suicide. Maltreated decedents died significantly younger than non-maltreated decedents.

CONCLUSIONS

Among victims of violent deaths, an identified history of child maltreatment was associated with increased risk of homicide across the lifespan, adult suicide, and earlier death. A history of child maltreatment was also associated with mental health and substance use disorders, which may reflect one of the pathways through which the child maltreatment-to-death association functions.

Problematic alcohol use in young adults exposed to childhood trauma: The Trøndelag Health (HUNT) Study

Problematic alcohol use (PAU) severely impacts the health, functioning, and long-term prospects of young people. Prior research indicates that childhood trauma exposure may be an important risk factor for PAU, but few longitudinal studies have looked at how specific trauma types influence this risk. The aim of this study was to investigate the association between childhood trauma exposure and PAU in a large, population-based cohort of young people. The study sample included 1,913 adolescents who participated in the Trøndelag Health Study (HUNT) between 2006 and 2008 (age range: 12-20) and completed follow-up 10 years later as young adults (age range: 22-32). The results revealed an increased risk of PAU in young adults exposed to childhood trauma, especially direct physical violence, OR = 2.38, [95% CI 1.56, 3.64]. Young adults who had witnessed violence, OR = 1.55, [95% CI 1.11, 2.17], or experienced an accident, disaster, or other traumatic event, OR = 1.60, [95% CI 1.19, 2.15], also had higher odds of PAU compared to those without such experiences. These associations remained consistent after adjusting for symptoms of headaches and pain as well as posttraumatic and general psychological distress as reported by the participants in adolescence. Future prevention efforts targeting PAU among adolescents and young adults should address violence and other trauma exposure as potential drivers of problematic drinking.

Differential prevalence of Adverse Childhood Experiences (ACEs) by gender and substance used in individuals with cannabis, cocaine, opioid, and tobacco use disorders

Background: Adverse childhood experiences (ACEs) show a graded association with the development of substance use disorders (SUDs) and engagement in risky substance use behaviors. Women are overrepresented among individuals with more severe childhood adversity (≥4 types of ACEs) and may be at particular risk for aberrant substance use.Objectives: To assess the prevalence of ACEs among men and women with cannabis, opioid, cocaine, and tobacco use disorders.Methods: Non-treatment-seeking individuals participating in clinical addiction research at a single site completed the ACE questionnaire and provided a detailed substance use history. Data were analyzed using proportional odds models and logistic regression.Results: Most participants (424/565; 75%) reported at least one ACE, and more than one-quarter (156/565; 27%) reported severe childhood adversity. Relative to men (n = 283), women (n = 282) reported more ACEs (OR = 1.49; p = .01) and more experiences of emotional/physical abuse (OR = 1.52; p = .02), sexual abuse (OR = 4.08; p = .04), and neglect (OR = 2.30; p < .01). Participants in the cocaine (OR = 1.87; n = .01) and opioid (OR = 2.21; p = .01) use disorder, but not cannabis use disorder (OR = 1.46; p = .08), studies reported more severe adversity relative to the tobacco group. Relative to tobacco users, emotional/physical abuse (OR = 1.92; p = .02) and neglect (OR = 2.46; p = .01) scores were higher in cocaine users and household dysfunction scores were higher in opioid users (OR = 2.67; p = .01).Conclusion: The prevalence of ACEs differs with respect to both participant gender and primary substance used. Novel SUD treatment strategies that incorporate ACEs may be uniquely beneficial in specific subpopulations of people with SUDs.

A 40-year study of child maltreatment over the early life course predicting psychiatric morbidity, using linked birth cohort and administrative health data: protocol for the Childhood Adversity and Lifetime Morbidity (CALM) study

BACKGROUND

Child maltreatment is a major public health issue worldwide. Retrospective studies show a strong association between self-reported child maltreatment and poor mental and physical health problems. Prospective studies that use reports to statutory agencies are less common, and comparisons of self- and agency-reported abuse in the same cohort even rarer.

AIMS

This project will link state-wide administrative health data with prospective birth cohort data (N = 7223) from Brisbane in Queensland, Australia (including notifications to child protection agencies), to compare psychiatric outcomes in adulthood of agency- and self-reported child maltreatment while minimising attrition bias.

METHOD

We will compare people with all forms of self- and agency-reported child maltreatment to the rest of the cohort, adjusting for confounding in logistic, Cox or multiple regression models based on whether outcomes are categorical or continuous. Outcomes will be hospital admissions, emergency department presentations or community/out-patient contacts for ICD-10 psychiatric diagnoses, suicidal ideation and self-harm as recorded in the relevant administrative databases.

CONCLUSIONS

This study will track the life course outcomes of adults after having experienced child maltreatment, and so provide an evidence-based understanding of the long-term health and behavioural consequences of child maltreatment. It will also consider health outcomes that are particularly relevant for adolescents and young adults, especially in relation to prospective notifications to statutory agencies. Additionally, it will identify the overlap and differences in outcome for two different sources of child maltreatment identification in the same cohort.

The case of an abused child exposed to the direct danger of serious damage to health in the form of a permanent mental illness

Prolonged exposure to violence in any form takes a toll on children's health. It may increase the risk of multiple mental disorders appearing in adult life. Such disorders may be of severe intensity, and in extreme cases, they can even disable normal functioning both individually and socially. The present case concerns an eight-year-old girl subjected to all forms of abuse (sexual, physical, psychological and negligence) in her biological family. The foster parents made a notification of a suspected criminal offence based on their multiple observations of behavioral disorders of the child. After analyzing the evidence, including observations of behavior in the foster family and a comprehensive medical-psychological examination of the subject, all forms of child abuse according to ICD-10 have been diagnosed, as well as a negative impact of violence on the child's psychological well-being. A thorough analysis of the whole available data led to a conclusion that the girl, functioning in her biological family, was exposed to a direct danger of severe health impairment in the form of a permanent mental illness within the meaning of art. 160 of the Polish Penal Code.

A revised and extended systematic review and meta-analysis of the relationship between childhood adversity and adult psychiatric disorder

This study aimed to systematically review the evidence for an association between adversity experienced in childhood (≤ 17 years old), and the diagnosis of psychiatric disorder in adulthood. Electronic databases (Scopus, Medline (for Ovid), EMBASE, and PsychINFO) were searched for peer-reviewed, longitudinal cohort studies examining child or adolescent exposure to adversity, and adult-diagnosed depression, anxiety, psychotic disorder, eating disorders, substance abuse disorder, illness anxiety disorder, somatoform disorder, or personality disorder. A total of 39 manuscripts were retained. Results revealed a significant association between the following childhood exposures and adult mental disorder (1.24 ≤ Odds ratios ≤ 2.09): bullying (victimhood, and frequency); emotional abuse; neglect; physical abuse; parental loss; and general maltreatment (unspecified and/or multiple adversity exposure). There were opposing results for being a victim and perpetrator of bullying, and the result for sexual abuse was not statistically significant. There was some evidence of a dose-response relationship with those exposed to multiple forms of maltreatment having more two and a half times odds of developing a mental disorder (Odds ratio = 2.59). The result for sexual abuse is likely an artefact of the prospective assessment of this adversity. In summary, there was strong evidence of an association between childhood adversity and later mental illness, and this supports previously reported meta-analyses. The evidence suggests that childhood and adolescence is an important time for risk for later mental illness, and an important period in which to focus intervention strategies for those known to have been exposed to adversity, particularly multiple adversities.

An Umbrella Review of the Links Between Adverse Childhood Experiences and Substance Misuse: What, Why, and Where Do We Go from Here?

BACKGROUND AND OBJECTIVES

A wealth of research has identified adverse childhood experiences (ACEs; abuse, neglect, violence or disorder in the home) as a strong risk factor for substance misuse. Synthesis of the existing evidence is critical to shape policy and inform directions for future research. Existing reviews have focused on specific substances or substance use outcomes (eg, disorder), and do not include discussion of the mechanisms that operate between ACEs and substance misuse. The current umbrella review aims to synthesize reviews on the relationship between ACEs and substance misuse, review the evidence on the mechanisms linking these, identify existing gaps in our knowledge, and discuss critical directions for future research, practice, and public policy.

METHODS

Two electronic databases (PsycINFO and Medline) were searched for reviews published between 1998 and 2022 on the link between ACEs and substance misuse. Twenty articles met eligibility criteria and were qualitatively synthesized.

RESULTS

Results overwhelmingly demonstrated an elevated risk of substance misuse or disorder, among adolescents and adults exposed to ACEs. Research on the mechanisms that explain this link highlights a multitude of potential intervention targets, with childhood stress propelling a cascade of effects across neurobiological, endocrine, immune, metabolic, and nervous systems, impacting psychosocial and cognitive functioning. Nonetheless, the literature is subject to limitations surrounding potential unmeasured cofounders and causality, as well as decontextualizing childhood adversity from broader structural issues that influence the link between ACEs and substance misuse. Research, policy, and practice that seek to holistically understand and address the relationship between ACEs and substance misuse within the broader social determinants of health is crucial.

Associations of childhood trauma with long-term diseases and alcohol and nicotine use disorders in Czech and Slovak representative samples

Objective

The abuse and neglect of a child is a major public health problem with serious psychosocial, health and economic consequences. The aim of this study was to assess the relationship between various types of childhood trauma, selected long-term diseases and alcohol and nicotine use disorder in Czech and Slovak representative samples.

Methods

Data on retrospective reporting about selected long-term diseases, alcohol and nicotine use disorder (CAGE Questionnaire) and childhood maltreatment (Childhood Trauma Questionnaire; CTQ) in two representative samples (Czech sample: n = 1800, 48.7% men, mean age 46.61 ± 17.4; Slovak sample: n = 1018, 48.7% men, mean age: 46.2 ± 16.6) was collected. Multinomial logistic regression models were used to assess the relationships between childhood maltreatment and long-term diseases.

Results

There is a higher occurrence of some long-term diseases (such as diabetes, obesity, allergy, asthma) and alcohol and nicotine use disorder in the Czech sample; however, in the Slovak sample the associations between child maltreatment and long-term diseases are stronger overall. Emotional abuse predicts the occurrence of all the studied long-term diseases, and the concurrent occurrence of emotional abuse and neglect significantly predicts the reporting of most diseases. All types of childhood trauma were strong predictors of reporting the occurrence of three or more long-term diseases.

Conclusion

The extent of reporting childhood trauma and associations with long-term diseases in the Czech and Slovak population is a challenge for the strengthening of preventive and therapeutic programmes in psychosocial and psychiatric care for children and adolescents to prevent later negative consequences on health.

Emerging ecophenotype: reward anticipation is linked to high-risk behaviours after sexual abuse

Adolescents frequently engage in high-risk behaviours (HRB) following childhood sexual abuse (CSA). Aberrant reward processes are implicated in HRB, and their underlying fronto-striatal networks are vulnerable to neurodevelopmental changes during adversity representing a promising candidate for understanding links between CSA and HRB. We examined whether fronto-striatal responses during reward anticipation and feedback (i) are altered in depressed adolescents with CSA compared to depressed, non-abused peers and (ii) moderate the relationship between CSA and HRB irrespective of depression. Forty-eight female adolescents {14 with CSA and depression [CSA +  major depressive disorder (MDD)]; 17 with MDD but no CSA (MDD); 17 healthy, non-abused controls} completed a monetary reward task during functional magnetic resonance imaging. No differences in fronto-striatal response to reward emerged between CSA + MDD and MDD. Critically, high left nucleus accumbens activation during reward anticipation was associated with greater HRB in CSA + MDD compared to MDD and controls. Low left putamen activation during reward feedback was associated with the absence of HRB in CSA + MDD compared to MDD. Striatal reward responses appear to play a key role in HRB for adolescents with CSA irrespective of depression, providing initial support for a CSA ecophenotype. Such information is pivotal to identify at-risk youth and prevent HRB in adolescents after CSA.

Associations of childhood emotional and physical neglect with mental health and substance use in young adults

BACKGROUND

Childhood neglect is a risk factor for subsequent mental health problems. However, research on the unique contribution of emotional and physical subtypes of neglect is lacking. Importantly, if emotional and physical neglect have different impacts on mental health, they must be examined separately to understand how to prevent and treat their effects.

OBJECTIVE

This study aimed to examine associations of emotional and physical neglect with depression, anxiety, stress, alcohol and drug use in 18- to 20-year-olds.

METHODS

Participants (N = 569, mean age = 18.9, 70% female) responded in an online survey to questions on childhood emotional and physical neglect, childhood abuse, symptoms of depression, anxiety and stress, and alcohol and drug use and problems. Procedures were approved by the University of Sydney Human Ethics Committee. Hierarchical linear regressions were performed, controlling for socio-demographic characteristics and other adverse childhood experiences.

RESULTS

Combined neglect was associated with depression (B = 2.895, p < 0.001), anxiety (B = 1.572, p = 0.003) and stress (B = 1.781, p = 0.001). However, a second model entering emotional and physical neglect as separate exposures revealed emotional neglect was driving this association with depression (B = 2.884, p < 0.001), anxiety (B = 1.627, p = 0.001) and stress (B = 1.776, p = 0.001), and that physical neglect was not associated with any outcome. Neither emotional nor physical neglect were associated with alcohol or drug use.

CONCLUSION

Emotional neglect is a risk factor for mental health problems in early adulthood. Research that combines emotional and physical neglect into a single exposure may be obscuring relationships with mental health. Mental health prevention and treatment must screen for, and address, emotional neglect.

Multi-type childhood maltreatment exposure and substance use development from adolescence to early adulthood: A GxE study

BACKGROUND

Childhood maltreatment types can co-occur and are associated with increased substance use during adolescence and early adulthood. There is also a strong genetic basis for substance use which interacts with environmental factors (e.g., childhood maltreatment) to influence substance use phenotype.

OBJECTIVE

This research aimed to identify childhood maltreatment sub-groups based on type and chronicity, and their association with substance use change from adolescence to early adulthood, while accounting for the influence of substance use polygenic risk (i.e., genetic risk based on the combined effects of multiple genes).

PARTICIPANTS

We used a sample of unrelated European-origin Americans with genetic and childhood maltreatment data (n = 2,664) from the National Longitudinal Study of Adolescent to Adult Health.

METHODS

Latent profile analysis was used for sub-group identification and direct and interaction effects were tested for longitudinal trajectories of substance use utilizing generalized estimating equations.

RESULTS

Three sub-groups with co-occurring childhood maltreatment exposures were identified: a high sexual abuse sub-group, a high physical abuse sub-group, and a normative sub-group (with low maltreatment exposure). At high polygenic risk, the high physical abuse sub-group had faster increases in substance use over time. In comparison, the high sexual abuse sub-group had faster progression in substance use only at low and medium polygenic risk.

CONCLUSIONS

Findings provide initial evidence for biological and environmental differences among maltreatment sub-groups on trajectories of substance use.

Early life stress and substance use disorders: The critical role of adolescent substance use

Early life stress (ELS) is a well-established risk factor for many psychiatric and medical disorders, including substance use disorders (SUDs). The relationship between ELS and SUDs is complex and there are likely multiple pathways from ELS to adverse substance use outcomes. The association between ELS and substance use emerges in adolescence. Adolescence is a critical period in development during which substance exposure markedly increases risk for SUDs. Therefore, this review focuses on the literature supporting the hypothesis that ELS increases risk for the development of SUDs through its influence on adolescent substance use. We discuss studies substantiating the role of ELS in adolescent substance use and explore how internalizing and externalizing psychopathology may be antecedents of substance use in adolescence. We examine clinical work suggesting ELS sculpts the Hypothalamic-Pituitary-Adrenal (HPA) Axis and developing brain-particularly subcortical brain regions that underlie stress response, mesocorticolimbic brain systems associated with reward sensitivity, and prefrontal regions that underlie executive control-in a way that increases risk for adolescent substance use and SUDs. We further explore how substance use during adolescence alters structure and function of these same systems, and how brain changes following ELS and adolescent substance use may independently, additively, or interactively contribute to risk for addiction. We conclude by discussing how the current literature can inform interventions aimed at reducing risk for SUDs in individuals with a history of ELS.

Infant Deaths From Medical Causes After a Maltreatment Report

OBJECTIVES

To examine whether postneonatal infants reported for maltreatment face a heightened risk of deaths attributable to medical causes.

METHODS

Birth and death records for all children born in California between 2010 and 2016 (N = 3 455 985) were linked to administrative child protection system records. Infants were prospectively followed from birth through death or age 1 year. Reports of maltreatment and foster care placement episodes were modeled as time-varying covariates; sociodemographic characteristics at birth were modeled as baseline covariates. Stratified, multivariable competing risk models were used to estimate the adjusted relative hazard of postneonatal infant death attributed to a medical cause (n = 1051).

RESULTS

After adjusting for baseline risk factors, and compared with infants never reported for maltreatment, the medical-related mortality risk was almost twice as great among infants reported once for maltreatment (hazard ratio: 1.77; 95% confidence interval: 1.36-2.30) and 3 times greater if there was >1 maltreatment report (hazard ratio: 3.27; 95% confidence interval: 2.48, 4.30). Among infants reported for maltreatment, periods of foster care placement reduced the risk of death by roughly half.

CONCLUSION

Infants reported for alleged maltreatment had a higher risk of death from medical causes, with foster care emerging as protective. Targeted support services for parents and improved communication between the child protection system and the pediatric health care community is needed, especially when infants who may be medically fragile remain at home after an allegation of abuse or neglect.