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All Adverse Childhood Experiences Are Not Equal: The Contribution of Synergy to Adverse Childhood Experience Scores

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Abstract

The operationalization of childhood trauma and adversity into checklists commonly known as adverse childhood experiences, or ACEs, has become the most widely adopted methodology linking traumatic childhoods to adult outcomes. As the number of self-reported ACEs increase from 0 to 4 or more (4+), most studies find a roughly stepwise progression in risk for a wide range of negative medical and mental health outcomes. A score of 4+ ACEs, has become a de facto cutpoint, increasingly used clinically to define "high risk" status for a myriad of outcomes. Comparisons across studies using a 4+ cutpoint, however, find considerable heterogeneity in the degree of risk for the same outcomes. In addition to sample and methodological differences, certain pairs of ACEs comprising the cumulative ACE score interact synergistically to significantly increase the overall risk beyond the sum (or product) of the contributions of each ACE to the outcome. This article reviews the empirical literature on synergistic ACEs including results from a general population adult and a mixed trauma, youth sample both sufficiently powered to examine over 20 different ACE pairings for possible synergy. Synergistic pairs of ACEs vary by gender and age group. About 30-40% of the variance in outcomes is accounted for by additive synergistic interactions between certain pairs of ACEs. Across studies, sexual abuse is the most synergistically reactive ACE. The article concludes with a discussion of the implications of synergistic ACE pairings for psychologists and other allied professionals across clinical practice, prevention, research, and policy. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
All Adverse Childhood Experiences Are Not Equal: The Contribution of
Synergy to Adverse Childhood Experience Scores
Ernestine C. Briggs
1
, Lisa Amaya-Jackson
1
, Karen T. Putnam
2
, and Frank W. Putnam
2
1
UCLA/Duke University National Center for Child Traumatic Stress, Department of Psychiatry and Behavioral Sciences, Duke
University School of Medicine
2
Department of Psychiatry, University of North Carolina at Chapel Hill
The operationalization of childhood trauma and adversity into checklists commonly known as
adverse childhood experiences, or ACEs, has become the most widely adopted methodology
linking traumatic childhoods to adult outcomes. As the number of self-reported ACEs
increase from 0 to 4 or more (4), most studies find a roughly stepwise progression in risk
for a wide range of negative medical and mental health outcomes. A score of 4ACEs, has
become a de facto cutpoint, increasingly used clinically to define “high risk” status for a
myriad of outcomes. Comparisons across studies using a 4cutpoint, however, find con-
siderable heterogeneity in the degree of risk for the same outcomes. In addition to sample and
methodological differences, certain pairs of ACEs comprising the cumulative ACE score
interact synergistically to significantly increase the overall risk beyond the sum (or product)
of the contributions of each ACE to the outcome. This article reviews the empirical literature
on synergistic ACEs including results from a general population adult and a mixed trauma,
youth sample both sufficiently powered to examine over 20 different ACE pairings for
possible synergy. Synergistic pairs of ACEs vary by gender and age group. About 30 40%
of the variance in outcomes is accounted for by additive synergistic interactions between certain
pairs of ACEs. Across studies, sexual abuse is the most synergistically reactive ACE. The article
concludes with a discussion of the implications of synergistic ACE pairings for psychologists and
other allied professionals across clinical practice, prevention, research, and policy.
Public Significance Statement
This study reviews evidence that an empiric interaction (synergy) between pairs of adverse childhood
experiences (ACEs) makes larger than expected contributions to outcomes. Sexual abuse, physical
abuse, and neglect are the most synergistic ACEs. The clinical, research, and public policy impli-
cations of synergy are discussed.
Keywords: trauma, adverse childhood experiences, ACEs, synergy, children and adolescents
Vincent Felitti, Robert Anda, and colleagues coined the
term “ACE,” an acronym for adverse childhood experi-
ences, in their seminal article (Felitti et al., 1998). The
original 10 ACEs on their questionnaire involved poten-
Editor’s note. This article is part of a special issue, “Adverse Child-
hood Experiences: Translating Research to Action,” published in the
February–March 2021 issue of American Psychologist. Sharon G. Port-
wood, Michael J. Lawler, and Michael C. Roberts served as editors of the
special issue.
Ernestine C. Briggs Xhttps://orcid.org/0000-0003-4446-4715
Lisa Amaya-Jackson Xhttps://orcid.org/0000-0003-3060-9020
Karen T. Putnam Xhttps://orcid.org/0000-0002-7817-476X
Frank W. Putnam Xhttps://orcid.org/0000-0003-3594-2113
Authors’ Note. This project was developed in part under Grant
2U79SM054284 from the Center for Mental Health Services (CMHS),
Substance Abuse and Mental Health Services Administration (SAM-
HSA), U.S. Department of Health and Human Services (HHS). The
views, policies, and opinions expressed are those of the authors and do
not necessarily reflect those of the funding sources listed above. We
would also like to thank Courtney Smith and Jessica Choi for assisting
with manuscript preparation.
Correspondence concerning this article should be addressed to Ernestine
C. Briggs, UCLA/Duke University National Center for Child Traumatic
Stress, Department of Psychiatry and Behavioral Sciences, Duke Uni-
versity School of Medicine, 1121 West Chapel Hill Street, Suite 201,
Durham, NC 27710, United States. Email: ernestine.briggs@duke
.edu
This document is copyrighted by the American Psychological Association or one of its allied publishers.
This article is intended solely for the personal use of the individual user and is not to be disseminated broadly.
American Psychologist
© 2021 American Psychological Association 2021, Vol. 76, No. 2, 243–252
ISSN: 0003-066X https://doi.org/10.1037/amp0000768
243
... ACE are commonly assessed using a 10-item survey-the ACE [9]-and typically only the sum of the number of adverse events is analyzed. This research suggests the detrimental effect of a linear increase in the number of ACE ("more rather than fewer"), and that certain types of events may be more harmful than others [10] Research can be advanced by also examining how ACE might be grouped based on frequency (e.g., none, few, or many) and type. For example, endorsement of four or more ACE has widely been accepted as a "high risk" marker for various mental and physical health conditions [10] and further utilization of these clinically-useful cutoff scores may assist clinicians with identifying at-risk patients. ...
... This research suggests the detrimental effect of a linear increase in the number of ACE ("more rather than fewer"), and that certain types of events may be more harmful than others [10] Research can be advanced by also examining how ACE might be grouped based on frequency (e.g., none, few, or many) and type. For example, endorsement of four or more ACE has widely been accepted as a "high risk" marker for various mental and physical health conditions [10] and further utilization of these clinically-useful cutoff scores may assist clinicians with identifying at-risk patients. Additionally, different types of adverse experiences may have differential effects on clinical presentations [10] For example, although childhood abuse has been studied specifically [7] few studies have examined how other kinds of adverse experiences, such as parental divorce or caregiver mental illness, are related to urogenital pain [11]. ...
... For example, endorsement of four or more ACE has widely been accepted as a "high risk" marker for various mental and physical health conditions [10] and further utilization of these clinically-useful cutoff scores may assist clinicians with identifying at-risk patients. Additionally, different types of adverse experiences may have differential effects on clinical presentations [10] For example, although childhood abuse has been studied specifically [7] few studies have examined how other kinds of adverse experiences, such as parental divorce or caregiver mental illness, are related to urogenital pain [11]. ...
Article
Background Adverse childhood experiences (ACE) are associated with later psychological and somatic problems, including the emotional sequelae of adverse events (depression, anxiety, and catastrophizing) and outcomes such as chronic pain intensity and pain‐related functioning. ACE have rarely been studied in women with pelvic, urogenital, and/or bladder pain (PUBP). Aims Thus, we examined how childhood adversities are related to psychological and pain‐related outcomes in adult women. We also tested whether negative affect and pain catastrophizing mediated the relationship between ACE and pain‐related outcomes. Methods A consecutive series of 310 adult women who presented at a tertiary urology center and reported PUBP completed an intake packet, which included the ACE Questionnaire as well as measures of psychological mediators and pain‐related outcomes. Results Elevated ACEs were significantly associated with higher pain interference and vaginal insertion pain, as well as significantly related to negative affect (depression and anxiety) and pain catastrophizing. Both negative affect and pain catastrophizing were found to mediate the relationship of ACE to pain intensity and interference; however, only pain catastrophizing mediated the relationship between ACE and vaginal insertion pain. Conclusions These results suggest that ACEs may impact some pain‐related outcomes in women with PUBP by influencing negative affect and pain catastrophizing. Thus, these processes are important targets for intervention in individuals with PUBP and a history of adverse childhood events. Trial registration: This study does not require a clinical trial registration because it is not a clinical trial.
... studies linking adverse childhood experiences (aces) with respiratory outcomes have largely been retrospective and adult focused (chanlongbutra et al., 2018). Prospective studies linking early life adversity with wheezing respiratory disorders in children have examined a range of stress correlates constituting aces, considered one at a time (Pape et al., 2021,Rosa et al., 2018, while many adverse events are co-occurring and can cumulatively impact outcomes (Briggs et al., 2021). although mechanisms are not completely understood, disruption of stress-mediating systems play a key role (Rosa et al., 2018). ...
... Motivated by calls to move the aces paradigm beyond a simple cumulative score (Briggs et al., 2021), we used weighted quantile sum (WQs) regression to derive a weighted aces index encompassing all early adversity measures and estimate the joint association with wheeze frequency. WQs is a supervised ensemble modeling strategy that tests for associations between an outcome of interest and multiple concurrent exposures (carrico et al., 2015). ...
Article
Full-text available
Identifying children at risk for respiratory disorders involves understanding early risk factors. This study prospectively examines how specific types of early adversity influence childhood wheeze and how these vary by race and ethnicity. Analyses included N = 746 mother-infant dyads from an urban pregnancy cohort. Mothers completed the Lifetime Stressor Checklist-Revised (LSC-R), Edinburgh Postnatal Depression Scale (EPDS), Spielberger State-Trait Anxiety Inventory (STAI), Posttraumatic stress disorder Checklist–Civilian version (PCL-C), and Traumatic Events Screening Inventory (TESI) when infants were 6 months old to assess adverse childhood experiences (ACEs). Mothers reported child wheeze at 4-month intervals to index wheezing episodes from age 6–30 months. We first assessed independent associations between ACE measures and wheeze frequency using Poisson regression. We then used weighted quantile sum (WQS) regression to derive an ACEs mixture index to estimate joint associations with wheeze frequency in the overall sample and stratified by maternal race and ethnicity adjusting for child sex, maternal asthma and education. There was a 2.05 increase (95% CI = 1.21, 3.49) in wheeze frequency with each quintile increase of the ACEs index in Black/Black Hispanics; the TESI (72%) contributed most strongly to the mixture. In non-Black Hispanics, there was a 1.33 (95% CI = 1.05, 1.67) increase in wheeze frequency with each ACEs quintile increase with EPDS (76%) contributing most strongly. Findings support the need to move the ACEs paradigm beyond a simple cumulative score when examining effects on early respiratory disease risk. Results also highlight how the impact of early life ACEs varies by ethnoracial identity.
... We observed a direct relationship between CA and PSD in some cases. This may constitute a different underlying etiological pathway from that involving the syndemic, possibly acting through individual CA factors having greater impact, such as childhood sexual abuse (Briggs, Amaya-Jackson, Putnam, & Putnam, 2021). Alternatively, through additive effects of multiple factors, for which there is stronger evidence (Petruccelli, Davis, & Berman, 2019). ...
Article
Full-text available
Background Population-level preventive interventions are urgently needed and may be effective for psychosis due to social determinants. We tested three syndemic models along pathways from childhood adversity (CA) to psychotic spectrum disorder (PSD) and their implications for prevention. Methods Cross-sectional data from 7461 British men surveyed in 5 population subgroups. We tested interactions on both additive and multiplicative scales for a syndemic of violence/criminality (VC), sexual behavior (SH), and substance misuse (SM) according to the presence of CA and adult traumatic life events; mediation analysis of path models; and partial least squares path modeling, with PSD as outcome. Results Multiplicative synergistic interactions were found between VC, SH, and SM among men, who experienced CA and traumatic adult life events. However, when disaggregated, only SM mediated the pathway from CA to PSD. Path modeling showed traumatic life events acted on PSD through the syndemic and had no direct effect on PSD. Higher syndemic scores and living in areas of deprivation characterized men with PSD and CA. Conclusions Our findings support a broad division of PSD into cases due to (i) biological/inherent causes, and (ii) social determinants, the latter including a syndemic pathway determined by CA. Preventive strategies should focus primarily on preventing adverse effects of CA on developmental pathways which result in PSD. Single component prevention strategies may prevent triggering effects of SM on PSD during adolescence/early adulthood among vulnerable individuals due to CA. Future research should determine applicability and transferability of interventions based on these findings to different populations, specifically those experiencing syndemics.
... Yet, in the study of Salokangas et al. [9], females (71.8%) had been in the majority; and in both our and Salokangas' study, sexual abuse was equally rare and weakly related to female sex. Thus, for the reported dose-response relationship between multiple forms of CAT and mental disorder [57] and its description as the most synergistically reactive CAT domain [58], sexual abuse may mainly add to the overall burden of CAT in those most likely afflicted also by other forms of CAT. ...
Article
Full-text available
Background Childhood adversities and traumata (CAT) increase the risk for various mental disorders, including the clinical high-risk of psychosis (CHR-P) state and its main comorbidities, i.e., depression, and social phobia. However, these relations are likely mediated by personal coping behaviors. This cross-sectional study investigates the relationships between the main CAT domains, coping, CHR-P, depression, and social phobia. Methods Using path analyses, we analyzed data of 736 patients (mean age 24 years, 67% male) who presented at an early detection service between 2002 and 2013, answered questionnaires on CAT, coping, depressiveness, and social phobia, and underwent clinical examination for CHR-P according to the recommendations of the Guidance project of the European Psychiatric Association. Results All path models (total sample, males and females) showed good to excellent fit to the data. In all models, higher scores on maladaptive coping mediated the negative effect of emotional abuse on mental health outcomes. Additionally, in the total sample and males, lower scores on adaptive coping mediated the negative effect of emotional abuse and neglect, and physical neglect was associated with lower scores on adaptive coping that, in turn, were linked to depression and social phobia but not CHR-P. Overall, effects of maladaptive coping were higher than those of adaptive coping, although adaptive coping was more diversely associated with CAT. Furthermore, the interrelated depression and social phobia were more widely explained by the models than CHR-P, which was not significantly associated with them. Conclusions Our findings underscore the complex interplay of the CAT domains and their relevant mediators with mental health outcomes that likely reflect underlying sex-specific psychological, social, cultural and neurobiological mechanisms. Supporting a broader view on CAT than the traditional focus on sexual abuse, results indicate an important role of emotional abuse that, descriptively, is most strongly mediated by maladaptive coping strategies on mental health outcomes. A detailed understanding of the effects of CAT will in future help to develop a multi-dimensional, holistic and sex-specific approach to the treatment of patients who have experienced CAT. Trial registration The study was registered in the German Clinical Trial Register (https://drks.de/) as DRKS00024469 at 02/24/2021.
Chapter
The current chapter provides an overview of the leading psychobiological theories of childhood traumatic stress disorders. Incorporating learning, cognitive, biological, interpersonal, developmental, and intergenerational perspectives, these theoretical models provide clinicians with a guiding framework for conceptualizing the origins, course, and contributing (risk and protective) factors for child and adolescent traumatic stress disorders. Clinicians, therefore, have a powerful set of concepts and tools for understanding the processes that must be assessed and targeted for treatment in order to enable children, adolescents, and families to recover from traumatic stress disorders. The chapter includes a description of the biopsychosocial factors associated with the origin and course of children’s traumatic stress disorders, a review of the prominent theories of child and adolescent traumatic stress disorders and how they account for these factors, and consideration of the implications of these theories for clinical assessment and treatment of childhood traumatic stress disorders.
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