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1.
J Pediatr ; 222: 174-179.e2, 2020 07.
Article in English | MEDLINE | ID: mdl-32586520

ABSTRACT

OBJECTIVE: To assess the implementation of screening, screening rates, and prevalence of adverse childhood experiences (ACEs) in a large integrated healthcare system. STUDY DESIGN: Kaiser Permanente Southern California is a large integrated healthcare system with 15 medical centers/hospitals and 233 medical office buildings that serve approximately 1.5 million children. Screening for ACEs began in July 2018 at 1 medical center (Downey, Bellflower medical office) for 3- and 5-year-old well-child visits (yearly physical examination). It quickly expanded to 3 other medical centers (6 clinics in total) and now also includes the 10- and 13-year-old well-child visits. RESULTS: Since July 2018 we have screened 3241 3-year-olds (53% of the target population), 2761 5-year-olds (53%), 545 10-year-olds (37%), and 509 13-year-olds (13%). Of the 3-year-olds who were screened, 15% had an ACEs score of 1 or higher. Of the 5-year-olds that were screened, 17.5% had an ACEs score of 1 or higher. Of the 10-year-olds, 30.5% had an ACEs score of 1 or higher and of the 13-year-olds, 33.8% had an ACEs score of 1 or higher. CONCLUSIONS: Although we have encountered some challenges, particularly with follow-up for those screening positive for ACEs, screening was feasible. The data show an increasing trend of ACEs in 3- to 13-year-old children, highlighting the need for early education about ACEs to mitigate the effects of toxic stress.


Subject(s)
Adverse Childhood Experiences/methods , Mass Screening/methods , Primary Health Care/methods , Adolescent , California , Child , Child, Preschool , Female , Humans , Male , Retrospective Studies
2.
J Clin Child Adolesc Psychol ; 49(1): 36-49, 2020.
Article in English | MEDLINE | ID: mdl-30084657

ABSTRACT

We utilized a life course framework to examine associations between the accumulation, timing, and duration of adverse childhood experiences (ACEs) across early childhood (ages 1-5 years) and internalizing and externalizing behavior problems at age 9. The sample included 1,789 children from the Fragile Families and Child Wellbeing Study, a birth cohort study of children born between 1998 and 2000. Primary caregivers reported on seven ACEs at child ages 1, 3, 5, and 9. We created 2 summary measures of early childhood ACEs to capture (a) accumulation and (b) timing and duration. We derived indicators of caregiver-reported internalizing and externalizing problems at ages 5 and 9. Logistic regression was used to estimate associations between early childhood ACEs and behavior problems at age 9, sequentially adjusting for sociodemographic covariates, age 9 ACEs, and age 5 behavior problems. In fully adjusted models, children exposed to 6 or more ACEs in early childhood faced 3 times the odds of age 9 behavior problems, compared to children exposed to 0-1 ACE. Intermittent adversity was associated with the greatest increase in odds of age 9 behavior problems, relative to other early childhood timing/duration categories. Categories of high early and high late adversity were also associated with age 9 behavior problems. Chronic adversity was not associated with age 9 behaviors in final models that adjusted for age 5 problems. These results demonstrate the importance of a developmental perspective for understanding the role of childhood adversity in the etiology of child psychopathology.


Subject(s)
Adverse Childhood Experiences/methods , Problem Behavior/psychology , Child, Preschool , Cohort Studies , Female , Humans , Male
3.
Eur Child Adolesc Psychiatry ; 29(10): 1329-1338, 2020 Oct.
Article in English | MEDLINE | ID: mdl-30968208

ABSTRACT

A systematic review following PRISMA guidelines was conducted to answer the question: What epigenetic, telomeric and associated biological changes are associated with exposure to adverse childhood experiences (ACEs) in the under 12s? Using PRISMA guidelines, appropriate databases were searched. 190 papers were returned with 38 articles fully reviewed. Articles were each independently quality rated by two authors using the Crowe Critical Appraisal Tool and data were extracted. Of the 38 articles, 23 were rated as very high quality. Most study participants were adults (n = 7769) with n = 727 child participants. Only seven of the very/high-quality studies were prospective and involved children. Methylation was the most studied method of epigenetic modification. There is some evidence supporting epigenetic modification of certain markers in participants exposed to ACEs measured in adulthood. Research is lacking on non-coding aspects of the epigenome and on coding aspects other than DNA methylation. There is some evidence of a more powerful effect on telomere length if physical neglect was involved. Much further work is required to model biological and psychological effects of epigenetic changes during childhood using prospective study designs. The effect of ACEs on the cellular ageing process during childhood is inadequately investigated and relies solely on measure of telomere length. Future research suggestions are proposed.


Subject(s)
Adverse Childhood Experiences/methods , Epigenesis, Genetic/genetics , Telomere/genetics , Adolescent , Child , Child, Preschool , Female , Humans , Male
4.
J Psychosom Res ; 127: 109842, 2019 12.
Article in English | MEDLINE | ID: mdl-31671348

ABSTRACT

OBJECTIVE: Adverse childhood experiences (ACEs) and depression are both independently associated with increased risk of diabetes and cardiovascular disease (CVD). The objective was to determine if the association of ACEs, examined with Latent Class Analysis (LCA), with CVD and diabetes was stronger in patients with versus without depression. METHODS: Participants were 78,435 non-institutionalized adults in the United States completing the ACEs module in the 2011-2012 Behavioral Risk Factor Surveillance System. LCA grouped participants into ACE classes. Respondents self-reported ACEs and lifetime depression, diabetes and CVD. Complex survey weighted logistic regression models assessed the relationships between ACEs, diabetes, and CVD overall and in those with and without depression. RESULTS: Half of participants were female (48.6%) and 82.3% White, non-Hispanic. LCA identified a four-class solution characterized as 'low adversity', 'verbal/physical abuse', 'sexual abuse', and 'high adversity'. The odds ratios for each ACE class and diabetes were similar in those with and without depression. An overall adjusted model showed that 'sexual abuse' versus 'low adversity' was significantly associated with diabetes (OR = 1.30; 95% CI: 1.05-1.61). Effect modification was present for CVD such that among those with depression, but not among those without, 'high adversity' had over two times the odds of CVD than 'low adversity' (OR = 2.17; 95% CI: 1.06-2.93). CONCLUSIONS: 'High adversity' in those with but not without depression is positively associated with CVD. 'Sexual abuse' is positively associated with diabetes independent of depression. The study is relevant to trauma-informed care and highlights the contribution of ACEs and depression to poor health outcomes.


Subject(s)
Adverse Childhood Experiences/methods , Cardiovascular Diseases/epidemiology , Depression/epidemiology , Adolescent , Adult , Aged , Cross-Sectional Studies , Female , Humans , Male , Middle Aged , Risk Factors , Surveys and Questionnaires , United States , Young Adult
6.
Pediatrics ; 144(2)2019 08.
Article in English | MEDLINE | ID: mdl-31331984

ABSTRACT

School readiness includes the readiness of the individual child, the school's readiness for children, and the ability of the family and community to support optimal early child development. It is the responsibility of schools to meet the needs of all children at all levels of readiness. Children's readiness for kindergarten should become an outcome measure for a coordinated system of community-based programs and supports for the healthy development of young children. Our rapidly expanding insights into early brain and child development have revealed that modifiable factors in a child's early experience can greatly affect that child's health and learning trajectories. Many children in the United States enter kindergarten with limitations in their social, emotional, cognitive, and physical development that might have been significantly diminished or eliminated through early identification and attention to child and family needs. A strong correlation between social-emotional development and school and life success, combined with alarming rates of preschool expulsion, point toward the urgency of leveraging opportunities to support social-emotional development and address behavioral concerns early. Pediatric primary care providers have access to the youngest children and their families. Pediatricians can promote and use community supports, such as home visiting programs, quality early care and education programs, family support programs and resources, early intervention services, children's museums, and libraries, which are important for addressing school readiness and are too often underused by populations who can benefit most from them. When these are not available, pediatricians can support the development of such resources. The American Academy of Pediatrics affords pediatricians many opportunities to improve the physical, social-emotional, and educational health of young children, in conjunction with other advocacy groups. This technical report provides an updated version of the previous iteration from the American Academy of Pediatrics published in 2008.


Subject(s)
Adverse Childhood Experiences/methods , Child Development/physiology , Child Health , Early Intervention, Educational/methods , Schools , Adverse Childhood Experiences/trends , Child , Child Health/trends , Child, Preschool , Early Intervention, Educational/trends , Humans , Schools/trends
7.
Acad Med ; 94(8): 1081-1083, 2019 08.
Article in English | MEDLINE | ID: mdl-31094726

ABSTRACT

This Invited Commentary highlights the prevalence of adverse childhood experiences and the potential effect that such experiences can have in the medical education setting on trainees, colleagues, and faculty. The author draws on 20 years of experience working in organizations devoted to helping physicians with disruptive behavior learn new behavioral skills to enable them to function within the complex medical environment. A case example-an amalgam of individuals who have presented for remediation-is used to illustrate the issues that result from adverse childhood experiences. There is a broad and well-understood literature demonstrating a correlation between early life trauma and medical and mental health issues. Adverse early life experiences can also contribute to attachment-related difficulties including problems with boundaries, trust, and suspiciousness; lack of reciprocity; lack of attunement with others' emotional states; as well as regulation issues, including difficulties labeling and expressing feelings and internal states. Difficulties with self-concept, including a lack of continuous and predictable sense of self, low self-esteem, and shame and guilt, are also associated with exposure to adverse childhood experiences. Given the documented high proportion of health care workers, including physicians, who are trauma survivors, trauma-sensitive education must be a priority, not only in medical school but across the educational continuum.


Subject(s)
Adverse Childhood Experiences/methods , Professionalism/standards , Adaptation, Psychological , Adverse Childhood Experiences/trends , Humans , Interprofessional Relations , Physicians/psychology , Physicians/standards , Professionalism/education
8.
MedEdPORTAL ; 15: 10803, 2019 02 09.
Article in English | MEDLINE | ID: mdl-30931382

ABSTRACT

Introduction: A large body of evidence implicates adverse childhood experiences (ACEs) as significant factors in shaping adult health outcomes. Despite their wide-ranging impact on health, training on ACEs is lacking in most medical school curricula. As part of a required health equity course for first-year medical students, we developed a novel workshop on ACEs with an introduction to protective effects of resilience and trauma-informed care. Methods: This educational module on ACEs incorporated a didactic session on the science and health consequences of ACEs and best practices for trauma-informed care, followed by a facilitated case discussion in small groups exploring an ACE survey tool and a resilience questionnaire. Results: A total of 535 first-year medical students participated in the workshop in academic years 2016-2017, 2017-2018, and 2018-2019. In the session evaluation, students reported that the small-group, case-based discussion provided the richest learning experience. Areas identified by the students for improvement included delving more deeply into how to incorporate asking about ACEs in clinical care and how to involve multidisciplinary services in addressing ACEs. Discussion: The focus on raising awareness of the health impact of ACEs as well as enhancing resilience using a case-based approach was successful in meeting the stated objectives for the workshop. Future work will consist of building on this introductory content by designing curricular elements that explore multidisciplinary approaches to ACEs and trauma-informed care interventions in the clinical clerkships.


Subject(s)
Adverse Childhood Experiences/statistics & numerical data , Curriculum/standards , Education/methods , Students, Medical/psychology , Adult , Adverse Childhood Experiences/methods , Awareness , Child , Clinical Clerkship/methods , Curriculum/trends , Female , Health Equity/ethics , Health Impact Assessment/methods , Humans , Interdisciplinary Communication , Practice Guidelines as Topic/standards , Problem-Based Learning/statistics & numerical data , Resilience, Psychological , Surveys and Questionnaires , Wounds and Injuries/epidemiology
9.
Violence Against Women ; 25(1): 6-28, 2019 01.
Article in English | MEDLINE | ID: mdl-30803426

ABSTRACT

Although some children exposed to intimate partner violence (IPV) demonstrate resilience, the population-level health consequences of exposure across the lifespan and the related social and economic costs of such exposure are enormous. Using a developmental and social-ecological perspective, this article summarizes the literature examining the effects of IPV exposure on children, reviews key underlying mechanisms, and suggests the use of a public health prevention approach. It presents a discussion of next steps and identification of key challenges. One of the authors, a survivor of child exposure to IPV, presents a vignette that augments key sections and highlights children's resilience.


Subject(s)
Adverse Childhood Experiences/methods , Exposure to Violence/psychology , Intimate Partner Violence/psychology , Adolescent , Child , Child, Preschool , Humans , Poetry as Topic , Research , Socioeconomic Factors , Survivors/psychology
10.
Matern Child Health J ; 23(3): 408-415, 2019 Mar.
Article in English | MEDLINE | ID: mdl-30627949

ABSTRACT

Introduction Adverse childhood experiences (ACEs) can deleteriously affect health, including pregnancy and birth outcomes occurring later in life. Identification of modifiable factors during pregnancy that buffer the ill effects of adversity is warranted. Social support during pregnancy can promote better birth outcomes, yet it is unknown whether it could also mitigate perinatal risks stemming from ACEs. Thus, this study considers multiple forms of social support in pregnancy as modifiers of an ACEs and fetal growth association. Methods Data were collected from mother and infant pairs from an ongoing prospective birth cohort. Women enrolled around 27 weeks gestation and completed gold-standard assessments of ACEs and social support. Infant cephalization index scores [(head circumference /birthweight) × 100; a marker of asymmetric fetal growth] were derived. Multivariable regression models tested main effects and interaction between ACEs and social support in relation to infant cephalization. Results Higher levels of ACEs were associated with higher cephalization scores (ß = 0.01, SE = 0.01, p < 0.05) whereas higher social support was associated with lower cephalization scores (ß = - 0.03, SE = 0.01, p < 0.05). A significant interaction was observed showing a protective effect of social support among those with low (0 events) and moderate (1-3 events) ACEs but not among those with high ACEs (4 + events; p < 0.05). Tangible and emotional support, but not information support, contributed to the associations. Discussion Maternal ACEs can deleteriously affect birth size, yet social support during pregnancy provides some buffer from its enduring effects. Interventions designed to enhance pregnancy social support may not only improve maternal wellbeing, but may also safeguard infant health.


Subject(s)
Adverse Childhood Experiences/methods , Mothers/psychology , Social Support , Adolescent , Adult , Body Mass Index , Female , Humans , New York , Pregnancy , Pregnancy Outcome , Prospective Studies , Retrospective Studies , Risk Factors
11.
Matern Child Health J ; 23(7): 961-970, 2019 Jul.
Article in English | MEDLINE | ID: mdl-30618019

ABSTRACT

Objectives Research to date indicates that parents and children residing in food insufficient homes incur a host of negative health outcomes. Recently, studies have suggested that these homes are also at risk of violence between family members. Our objective is to examine the link between household food insufficiency and physical violence in the home using a recent, nationally representative sample, and to determine whether family mental illness and/or substance misuse inform this association. Methods A sample of nearly 50,000 children and families from the 2016 National Survey of Children's Health were employed in the study. Information concerning household access to food, experiences of violence between parents/adults, and associated mental health and substance use risk factors were available in the data. Logistic regression, employed in a hierarchical fashion, was utilized to analyze the data. Results Household food insufficiency was associated with an increased risk of children witnessing physical violence in the home, and this was especially pronounced in the case of moderate-to-severe food insufficiency. Findings also indicated that family mental illness and substance misuse partly attenuated this association and that household food insufficiency was more strongly associated with violence in the home in the absence of mental health and substance use risk factors. Conclusions for Practice Polices aimed at diminishing food insufficiency may have important collateral benefits in the form of reductions in family violence, and these benefits appear to extend to families that are otherwise at low risk of family violence.


Subject(s)
Adverse Childhood Experiences/statistics & numerical data , Food Supply/statistics & numerical data , Mental Disorders/complications , Physical Abuse/psychology , Substance-Related Disorders/complications , Adolescent , Adult , Adverse Childhood Experiences/methods , Child , Cross-Sectional Studies , Domestic Violence/statistics & numerical data , Female , Humans , Logistic Models , Male , Mental Disorders/epidemiology , Mental Disorders/psychology , Parents/psychology , Physical Abuse/statistics & numerical data , Risk Factors , Substance-Related Disorders/epidemiology , Substance-Related Disorders/psychology , Surveys and Questionnaires
12.
Eur Child Adolesc Psychiatry ; 28(8): 1065-1078, 2019 Aug.
Article in English | MEDLINE | ID: mdl-30552585

ABSTRACT

Adverse childhood experiences (ACEs) are associated with severe problems later in life. This study examines how eleven types of ACEs and mental health care use history are related to current psychological dysfunction among multi-problem young adults. A sample of 643 multi-problem young adult men (age 18-27) gave informed consent for us to collect retrospective regional psychiatric case register data and filled out questionnaires. ACEs were highly prevalent (mean 3.6, SD 2.0). Logistic regression analysis showed that compared with participants who experienced other ACEs, participants who experienced psychological problems in their family and grew up in a single-parent family were more likely to have used mental health care, and physically abused participants were less likely to have used mental health care. Linear regression analyses showed a dose-response relationship between ACEs and internalizing and externalizing problems. Linear regression analyses on the single ACE items showed that emotional abuse and emotional neglect were positively related to internalizing problems. Emotional and physical abuse and police contact of family members were positively related to externalizing problems. While multi-problem young adults experienced many ACEs, only a few ACEs were related to mental health care use in childhood and adolescence. Long-term negative effects of ACEs on psychological functioning were demonstrated; specifically, emotional abuse and emotional neglect showed detrimental consequences. Since emotional abuse and emotional neglect are not easily identified and often chronic, child health professionals should be sensitive to such problems.


Subject(s)
Adverse Childhood Experiences/methods , Mental Disorders/psychology , Adolescent , Adult , Humans , Male , Retrospective Studies , Young Adult
13.
Qual Life Res ; 28(4): 907-914, 2019 Apr.
Article in English | MEDLINE | ID: mdl-30467779

ABSTRACT

BACKGROUND: More than half of the U.S. population has experienced adverse childhood experiences (ACE), which are linked to physical and mental health issues. This study examines the relationship between ACEs and life satisfaction, psychological well-being, and social well-being. METHODS: Data of 6323 participants from three waves of the Midlife Development in the United States (1995-1996, 2004-2006, and 2011-2014) were used. Repeated measures models were used to test the associations between ACEs and all three psychosocial scales. Generalized estimating equations (GEE) were used to account for multiple survey measures. Adjusting for demographics and survey wave, GEE models were run for each ACE construct. RESULTS: After controlling for demographic covariables, those reporting an ACE had significantly lower levels of life satisfaction (ß = - 0.20, 95% CI - 0.26 to - 0.15) compared to those without an ACE. Those reporting higher ACE counts were associated with lower life satisfaction compared to those with no ACE (ß = - 0.38, 95% CI - 0.56 to - 0.20; ß = - 0.36, 95% CI - 0.46 to - 0.27; and ß = - 0.13, 95% CI - 0.19 to - 0.08 for ACE counts of 3, 2, and 1, respectively). Abuse (ß = - 0.41, 95% CI - 0.48 to - 0.33) and household dysfunction (ß = - 0.18, 95% CI - 0.25 to - 0.10) were associated with significantly lower life satisfaction. Overall, those exposed to ACEs had significantly lower sense of social well-being. CONCLUSION: In this sample of adults, ACEs were significantly associated with lower life satisfaction, lower psychological well-being, and lower social well-being, especially for those who report abuse and household dysfunction during childhood.


Subject(s)
Adverse Childhood Experiences/methods , Personal Satisfaction , Quality of Life/psychology , Adult , Aged , Cohort Studies , Female , Humans , Longitudinal Studies , Male , Middle Aged , United States , Young Adult
14.
Psicol. Estud. (Online) ; 24: e39062, 2019. graf
Article in Portuguese | LILACS, Index Psychology - journals | ID: biblio-1012799

ABSTRACT

RESUMO Em diversos países, a educação baseada em evidências (EBE) ocupa um papel central na tomada de decisões acerca dos processos e procedimentos educacionais. No Brasil, a EBE ainda não é muito difundida na educação, mas dado o aumento gradual de publicações e organizações relacionadas a esta temática e dada a sua importância no cenário educacional internacional, é esperado que esta prática passe a ser mais discutida no país, especialmente pelos profissionais que trabalham na interseção entre a psicologia e a educação. Tendo por base o processo de tomada de decisão da EBE, mais especificamente, a necessidade de avaliação sistemática das intervenções educacionais e, tendo como corpo teórico-conceitual a análise do comportamento, os objetivos deste artigo são (a) apresentar como as formas de avaliação diagnóstica e formativa propostas pela análise do comportamento se relacionam a formas tradicionais de implementar avaliações de práticas psicoeducacionais e (b) demonstrar a importância dos delineamentos intrassujeitos como forma de avaliação e monitoramento de intervenções psicoeducacionais na busca por decisões que levem à EBE a partir da literatura da área. As análises realizadas neste manuscrito permitem a conclusão de que delineamentos intrassujeitos podem ser utilizados como avaliações na prática educacional como produtores de evidência.


RESUMEN En diversos países la educación basada en evidencias (EBE) ocupa un papel central en la toma de decisiones acerca de los procesos y procedimientos educativos. En Brasil, la EBE aún no es muy difundida en la Educación, pero dado un aumento gradual de publicaciones y organizaciones relacionadas con esta temática y dada su importancia en el escenario educativo internacional, se espera que esta práctica pase a ser más discutida en el país, especialmente por los profesionales que trabajan en la intersección entre la Psicología y la Educación. En base al proceso de toma de decisión de la EBE, más específicamente, la necesidad de evaluación sistemática de las intervenciones educativas y, teniendo como cuerpo teórico-conceptual el Análisis de la Conducta, los objetivos de este artículo son (a) presentar como las formas de la evaluación diagnóstica y formativa propuestas por el Análisis de la Conducta se relacionan con formas tradicionales de implementar evaluaciones de prácticas psicoeducativas y (b) demostrar la importancia de los modelos intrasujetos como forma de evaluación y monitoreo de intervenciones psicoeducativas en la búsqueda de decisiones que lleven a la EBE a partir de la literatura del área. Las analices realizadas en este manuscrito permiten la conclusión de que modelos intrasujeto pueden ser utilizados como evaluaciones en la práctica educativa como productores de evidencia.


ABSTRACT In many countries evidence-based education (EBE) plays a central role in decision making regarding educational processes and procedures. In Brazil, EBE is still not widespread in Education, but given the gradual increase in publications and organizations related to this topic, and given its importance in the international educational scenario, it is hoped that this practice be more intensely discussed in the country, especially by professionals working in the intersection between Psychology and Education. Based on the decision making process of EBE, more specifically, on the need for a systematic evaluation of educational interventions, and having Behavior Analysis as theoretical and conceptual basis, this article has the goal of (a) presenting how the diagnostic and formative evaluations proposed by the Behavior Analysis are related to traditional ways of implementing the evaluations of psychoeducational practices and (b) demonstrating the importance of intra-subject designs as a way of evaluating and monitoring psychoeducational interventions in the quest for decisions that lead to EBE, having the published literature as its basis. The analysis made throughout this manuscript led to the conclusion that intra-subject designs can be used as evaluations in the educational practice as evidence producers.


Subject(s)
Educational Technology , Educational Measurement , Planning , Learning , Practice, Psychological , Psychology, Educational/education , Teaching/psychology , Behavior , Curriculum , Decision Making , Education/methods , Adverse Childhood Experiences/methods
15.
Bioessays ; 40(9): e1800077, 2018 09.
Article in English | MEDLINE | ID: mdl-30067291

ABSTRACT

This manuscript reviews recent evidence supporting the utility of telomeres and mitochondrial DNA copy number (mtDNAcn) in detecting the biological impacts of adverse childhood experiences (ACEs) and outlines mechanisms that may mediate the connection between early stress and poor physical and mental health. Critical to interrupting the health sequelae of ACEs such as abuse, neglect, and neighborhood disorder, is the discovery of biomarkers of risk and resilience. The molecular markers of chronic stress exposure, telomere length and mtDNAcn, represent critical biological links between ACEs and poor health outcomes. We examine how telomeres and mtDNAcn may exacerbate health disparities and contribute to the intergenerational transmission of trauma. Finally, we explore how these molecular markers of early stress exposure may help define the role of resilience and develop effective interventions to moderate ACE health risk impact.


Subject(s)
Biomarkers/metabolism , DNA Copy Number Variations/genetics , DNA, Mitochondrial/genetics , Mental Disorders/genetics , Stress, Psychological/genetics , Telomere/genetics , Adverse Childhood Experiences/methods , Animals , Humans , Mitochondria/genetics
16.
Mol Psychiatry ; 23(4): 858-871, 2018 04.
Article in English | MEDLINE | ID: mdl-28322278

ABSTRACT

Early adversity, in the form of abuse, neglect, socioeconomic status and other adverse experiences, is associated with poor physical and mental health outcomes. To understand the biologic mechanisms underlying these associations, studies have evaluated the relationship between early adversity and telomere length, a marker of cellular senescence. Such results have varied in regard to the size and significance of this relationship. Using meta-analytic techniques, we aimed to clarify the relationship between early adversity and telomere length while exploring factors affecting the association, including adversity type, timing and study design. A comprehensive search in July 2016 of PubMed/MEDLINE, PsycINFO and Web of Science identified 2462 studies. Multiple reviewers appraised studies for inclusion or exclusion using a priori criteria; 3.9% met inclusion criteria. Data were extracted into a structured form; the Newcastle-Ottawa Scale assessed study quality, validity and bias. Forty-one studies (N=30 773) met inclusion criteria. Early adversity and telomere length were significantly associated (Cohen's d effect size=-0.35; 95% CI, -0.46 to -0.24; P<0.0001). Sensitivity analyses revealed no outlier effects. Adversity type and timing significantly impacted the association with telomere length (P<0.0001 and P=0.0025, respectively). Subgroup and meta-regression analyses revealed that medication use, medical or psychiatric conditions, case-control vs longitudinal study design, methodological factors, age and smoking significantly affected the relationship. Comprehensive evaluations of adversity demonstrated more extensive telomere length changes. These results suggest that early adversity may have long-lasting physiological consequences contributing to disease risk and biological aging.


Subject(s)
Stress, Psychological/genetics , Telomere Shortening/genetics , Adolescent , Adult , Adverse Childhood Experiences/classification , Adverse Childhood Experiences/methods , Cellular Senescence/genetics , Child , Female , Humans , Life Change Events , Male , Middle Aged , Social Class , Stress, Psychological/psychology , Telomere/genetics
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