Adverse childhood experiences (ACEs) significantly impact lifelong health and well-being. Despite extensive research, a comprehensive understanding of ACEs\' multifaceted impacts continues to be challenging to achieve. This study synthesizes meta-analytic evidence to provide a comprehensive view of ACEs\' effects, addressing various approaches to conceptualizing ACEs and their diverse outcomes. Employing an umbrella synthesis methodology, this review integrated findings from 99 meta-analyses involving 592 effect sizes. We examined ACEs through specificity, lumping, dimensional, and child maltreatment-centric approaches, assessing their impact across six domains: biological system dysregulation, neuropsychological impairments, physical health complications, mental health conditions, social and behavioral challenges, and criminal justice involvement. The findings reveal a small to moderate overall effect size of ACEs across outcome domains. Specific ACE approaches exhibited varying impact levels, with notable differences in effects on mental health, social/behavioral issues, and criminal justice involvement. When ACEs were aggregated without distinguishing between different types, but with consideration of their cumulative effects, adverse outcomes were significantly exacerbated. The child maltreatment-centric approach consistently demonstrated substantial effects across all evaluated domains. This review underscores the heterogeneity in ACEs\' impacts, influenced by the type of ACE and specific outcomes considered. It highlights the necessity for comprehensive approaches to understanding, preventing, and mitigating the effects of ACEs. These insights are vital for developing targeted interventions and informing policy-making, emphasizing the complexity and varied nature of ACEs\' influence on individual development and societal well-being.

Today, various questionnaires are available to assess Adverse Childhood Experiences (ACEs) in children; however, it is uncertain if these questionnaires are comprehensive in addressing adversities of vulnerable subgroups, specifically refugee children. This review\'s objectives are to (1) identify current ACE questionnaires and determine if they are suitable in assessing refugee children\'s adversities, and (2) identify those previously used within a refugee population. A systematic literature search was conducted across five databases for articles published since 2010, including studies using an ACE-questionnaire that recognized multiple adversities in healthy children and were published in English. A total of 103 ACE questionnaires were identified in 506 studies. Only 14 of the 103 questionnaires addressed a refugee-specific adversity. Their ability to capture refugee children\'s experiences was limited: available questionnaires used a maximum of three items to assess refugee-specific adversities, covering only a fraction of forms of adversities relevant to refugee children. Psychometric characteristics were rarely reported. In addition, only two ACE questionnaires were used within a refugee population. With the tools currently available, it is not possible to comprehensively assess the exposure to and severity of the adversities faced by refugee children. The perpetuation of ongoing crises necessitates assessing refugee children\'s adversities to understand how their wellbeing is affected and to identify children at risk.

Indigenous individuals in Canada disproportionally experience higher rates of substance use concerns. This study examined clinical practices currently implemented with Indigenous-led residential treatment facilities to simultaneously address substance use and post-traumatic stress. A systematic review of relevant literature retrieved published approaches to address these concurrent disorders with Indigenous individuals. This review retrieved 35 sources related to trauma and substance use treatment among Indigenous individuals or communities. Among these sources, all leveraged cultural approaches as a dual treatment for trauma symptoms and substance use. Inconsistent results were reported among those sources (n = 3) who analyzed comparisons with wait-list controls or used randomized-controlled designs. Using culture-as-treatment was elaborated upon in the second goal of this study: an environmental scan of Indigenous-led treatment programs and qualitative interviews with 10 treatment center staff to understand how programs may address both substance use and traumatic symptoms among Indigenous-led substance use treatment centers across Canada. When we searched the websites of these centers, we found that approximately 38% (16 of 43) of treatment centers discussed implementing some form of treatment that addressed trauma symptoms in conjunction with primary substance use. Among the 10 staff participants, all discussed how trauma can impede client success in treatment, and ACE-specific programming is useful within their respective treatment programs. Results showed that when manualized treatments are used, they must be adapted to meet the specific needs of Indigenous communities, and culture-as-treatment is a popular approach among Indigenous-led treatment centers, particularly for addressing trauma symptoms.

Adverse childhood experiences (ACEs) have been found to be more prevalent among youth involved with the criminal justice system compared to their counterparts in the general population. The present study aims to systematically review the existing empirical studies to provide a comprehensive understanding of the prevalence of ACEs among youth offenders aged between 10 and 19 years, and the effects of both cumulative ACEs and individual ACE items on youth recidivism.
A systematic review approach was employed. Narrative synthesis and meta-analysis were performed to synthesise the data in 31 included studies.
The pooled prevalence of cumulative ACEs was 39.4 %. The pooled prevalence of individual ACEs ranged between 13.7 % to 51.4 %. Cumulative ACEs and neglect were positively associated with youth recidivism, with OR = 1.966, 95%CI [1.582, 2.444] and OR = 1.328, 95%CI [1.078, 1.637], respectively. Physical and sexual abuse were not significantly associated with youth recidivism. Regarding the mechanisms underlying the relationship between ACEs and recidivism; moderators included gender, positive childhood experiences, strong social bonds, and empathy. Mediators included child welfare placement, emotional and behavioural problems, drug use, mental health problems, and negative emotionality.
Developing programs to youth offenders aiming to address the impact of cumulative and individual ACE exposure, strengthen the protective factors and weaken the risk factors would be useful to reduce youth recidivism.

Several communities are implementing trauma-informed, community-level approaches focused on addressing/preventing adverse childhood experiences (ACEs), yet most community resilience definitions from published articles are based on acute traumas. This scoping review aims to determine how community resilience is defined and operationalized within the context of chronic/complex traumas.
We performed a rigorous, comprehensive literature search using multiple databases.
The 38 included articles addressed multiple types of chronic traumas, including historical trauma, poverty, minority stress, mass incarceration, and ACEs. A variety of definitions of community resilience were cited, several of which stressed the ability to thrive despite risk factors and the safety and wellbeing of residents. Few articles operationalized community resilience within the context of ACEs, suggesting significant gaps in the literature.
This review can serve as an important building block to develop expanded definitions of community resilience for chronic traumas and assist communities in promoting community-wide responses to ACEs.

Intimate partner violence (IPV) is a serious social and public health problem in the United States. Adverse childhood experiences (ACEs) and alcohol use have been found to be associated with IPV perpetration; however, limited studies have examined the interrelationships of these variables among Black men. This is the first known study to systematically review and synthesize studies on the interrelationships of ACEs, alcohol use, and IPV perpetration among Black men. Comprehensive literature searches were conducted in PubMed and six EBSCOhost databases by a research librarian and two researchers. Twenty studies met inclusion criteria: empirical; available in English; included ACEs, alcohol use/substance abuse, and IPV perpetration variables in the analyses; and samples included Black/African American male IPV perpetrators aged ≥ 18 years. ACEs were found to be associated with IPV perpetration among Black men, but findings were mixed regarding the role of alcohol in relation to ACEs and IPV. Numerous ACE factors (1-6) were used across studies. However, findings regarding the co-occurrence of ACE factors are inconclusive because none of the studies examined the cumulative effects of exposure to more than one type of ACE on subsequent IPV perpetration. Implications for policy, practice, and research related to the interrelationships of ACEs, alcohol use, and IPV perpetration are provided. Future work is needed to better explicate the interrelationships among these constructs.

OBJECTIVE: To systematically assess the evidence base for prevention and treatment of child traumatic stress in primary care settings.
METHODS: PubMed, Embase, PsycINFO, Scopus, Academic Search Complete, CINAHL, Web of Science, Cochrane Library, the National Registry of Evidence-based Programs and Practices, the National Child Traumatic Stress Network website, Google search.
METHODS: Studies were eligible for inclusion if they described the results of intervention studies in a primary care setting addressing child traumatic stress. Study participants could include primary care providers, pediatric patients, and their parents or other caregivers.
METHODS: Each study was assessed for inclusion, and each included study was assessed for risk of bias by 2 reviewers.
RESULTS: We found 12 articles describing 10 different studies that met the inclusion criteria. The intervention approaches taken in the studies were diverse and included the implementation of screening programs or tools, training clinicians to recognize and discuss psychosocial issues with patients and their families, and providing primary care professionals with community resource lists. Nine out of 10 studies included in the review reported favorable results.
CONCLUSIONS: Studies included in the review had relatively short follow-up periods, and the diversity of studies identified precluded the possibility of conducting a meta-analysis.
CONCLUSIONS: Findings suggest that interventions in pediatric primary care settings are feasible and can favorably affect clinical practices and families\' outcomes.