Adverse childhood experiences in relation to mood and anxiety disorders in a population-based sample of active military personnel

The role of social support in reducing the long-term burden of cumulative childhood adversity on adulthood internalising disorder

PURPOSE

Previous research indicates that social support is protective for the mental health outcomes of exposure to childhood adversity. However, the impact of social support as a protective factor following exposure to cumulative childhood adversity is understudied with prospective longitudinal data. The aim of this present study was to examine how social support mediates the impact of cumulative exposure to childhood adversity on internalising disorder in adulthood.

METHODS

The Christchurch Health and Development Study (CHDS) is a general population birth cohort, born in 1977 and representative of Christchurch, New Zealand at the time of the cohort members' birth. The present study used a generalised estimating equations (GEE) framework to analyse direct associations between a cumulative measure of childhood adversity (CA) and internalising disorders (major depression, and any anxiety disorder), and indirect associations through social support.

RESULTS

Results indicated a dose-dependent relationship between increased exposure to CA and worsened odds of a diagnosis for major depression and any anxiety disorder, respectively. There was also a significant mediating effect of social support on the direct associations between CA and both major depression (OR (95%CI) =0 .98 (0.97, 0.99), p < 001) and any anxiety disorder (OR (95%CI) = .98 (0.97, 0.99), p < 001).

CONCLUSION

The findings indicate that social support reduces the impact of childhood adversity on adult mental health, and is therefore a target for future work examining potential interventions following CA.

Global Trends in the Incidence of Anxiety Disorders From 1990 to 2019: Joinpoint and Age-Period-Cohort Analysis Study

BACKGROUND

Anxiety disorders (ADs) are the most common mental illness with high prevalence, chronicity, and comorbidity. Despite rapid economic and cultural development, the global incidence of ADs continues to increase, with predominance in male individuals.

OBJECTIVE

To address the above issues, we analyzed the dynamic trends of the global incidence and disease burden of ADs from 1990 to 2019 and their different effects on age, period, and birth cohort and predicted the future trend of AD incidence.

METHODS

The data were obtained from the Global Burden of Disease study in 2019. A joinpoint regression model was used to calculate the annual percent change in AD incidence, and age-period-cohort analysis was used to estimate the independent effects of age, period, and cohort. Nordpred age-period-cohort analysis was used to predict the incidence of ADs from 2020 to 2044.

RESULTS

The age-standardized incidence rate of ADs increased by 1.06% for both sexes, and the age-standardized disability-adjusted life-year (DALY) rate (ASDR) decreased by 0.12%. Joinpoint regression indicated that increments in average annual percent changes in the age-standardized incidence rate (0.068 vs 0.012) and ASDR (0.035 vs -0.015) for ADs globally were higher among male individuals than female individuals. The age-period-cohort analyses revealed that the relative risk (RR) of the incidence and DALYs of ADs among people of different sexes increased with age in adolescence and middle age and then decreased. For the period effect, the RR of incidence decreased, whereas the RR of DALYs increased in both sexes. Moreover, the RR of the incidence gradually increased and DALYs slowly decreased with birth year for both male and female individuals. New cases of ADs in male individuals are predicted to increase in the coming 25 years.

CONCLUSIONS

This study provided the changing trend of the global incidence and disease burden of ADs in the past 3 decades, indicating that early prevention and effective control cannot be ignored. We analyzed the age-period-cohort effect of potential trends in ADs and predicted future incidence trends. The results suggest that we should take active intervention measures, focusing on high-risk groups and developing effective management and control policies to reduce the global burden of disease.

Adverse childhood experiences and depressive symptoms among lesbian and bisexual women in China

BACKGROUND

Despite the relationship between Adverse childhood experiences (ACEs) and depressive symptoms, which has been well researched in general populations, little is known about homosexual and bisexual populations, especially lesbian and bisexual women in China. This study aims to investigate the prevalence of ACEs and depressive symptoms and to analyze the relationship between them among lesbian and bisexual women in China.

METHODS

The eligible participants were aged 16 years or older who report their sexual orientation as homosexual or bisexual. The data was collected through anonymous questionnaires with the help of Lespark in Beijing from July 18 to December 29, 2018, and all participants had informed consent to this study. Univariate analysis and multiple linear regression analyses were performed to explore the relationship between ACEs and depressive symptoms among lesbian and bisexual women. All statistical analyses were conducted by the software of SPSS 22.0.

RESULTS

Among 301 lesbian and bisexual women, 81.4% were lesbian, 18.4% were bisexual women, and the majority were 21-30 years. As for ACEs, 51.5% reported at least one ACE, in which emotional neglect (22.6%) and emotional abuse (22.3%) were common ACEs. As for depressive symptoms of lesbian and bisexual women, the detection rate was 56.1%. The multiple linear regression analyses showed that abuse (β = 2.95, 95%CI:1.07-4.83) and neglect (β = 3.21, 95%CI:1.09-5.31) were positively associated with depressive symptoms and lesbian and bisexual women with three (β = 4.11, 95%CI: 0.99-7.22) or more (β = 6.02, 95%CI: 3.23-8.78) ACEs suffered from more depressive symptoms than others.

CONCLUSION

Adverse childhood experiences (ACEs) and depressive symptoms were at high prevalence among lesbian and bisexual women in China. ACEs were associated with depressive symptoms, especially childhood abuse and neglect experiences that have a significant effect on lesbian and bisexual women mental health.

Adjustment disorder in the Armed Forces: a systematic review

BACKGROUND

In the UK military, adjustment disorder (AjD) is reported as one of the most diagnosed mental disorders, alongside depression, in personnel presenting to mental health services. Despite this, little is understood about what may predict AjD, common treatment or outcomes for this population.

AIM

The systematic review aimed to summarise existing research for AjD in Armed Forces (AF) populations, including prevalence and risk factors, and to outline clinical and occupational outcomes.

METHOD

A literature search was conducted in December 2020 to identify research that investigated AjD within an AF population (serving or veteran) following the PRISMA guidelines.

RESULTS

Eighty-three studies were included in the review. The AjD prevalence estimates in AF populations with a mental disorder was considerably higher for serving AF personnel (34.9%) compared to veterans (12.8%). Childhood adversities were identified as a risk factor for AjD. AjD was found to increase the risk of suicidal ideation, with one study reporting a risk ratio of 4.70 (95% Confidence Interval: 3.50-6.20). Talking therapies were the most common treatment for AjD, however none reported on treatment effectiveness.

CONCLUSION

This review found that AjD was commonly reported across international AF. Despite heterogeneity in the results, the review identifies several literature gaps.

Hypothalamus and Post-Traumatic Stress Disorder: A Review

Humans have lived in a dynamic environment fraught with potential dangers for thousands of years. While fear and stress were crucial for the survival of our ancestors, today, they are mostly considered harmful factors, threatening both our physical and mental health. Trauma is a highly stressful, often life-threatening event or a series of events, such as sexual assault, war, natural disasters, burns, and car accidents. Trauma can cause pathological metaplasticity, leading to long-lasting behavioral changes and impairing an individual's ability to cope with future challenges. If an individual is vulnerable, a tremendously traumatic event may result in post-traumatic stress disorder (PTSD). The hypothalamus is critical in initiating hormonal responses to stressful stimuli via the hypothalamic-pituitary-adrenal (HPA) axis. Linked to the prefrontal cortex and limbic structures, especially the amygdala and hippocampus, the hypothalamus acts as a central hub, integrating physiological aspects of the stress response. Consequently, the hypothalamic functions have been attributed to the pathophysiology of PTSD. However, apart from the well-known role of the HPA axis, the hypothalamus may also play different roles in the development of PTSD through other pathways, including the hypothalamic-pituitary-thyroid (HPT) and hypothalamic-pituitary-gonadal (HPG) axes, as well as by secreting growth hormone, prolactin, dopamine, and oxytocin. This review aims to summarize the current evidence regarding the neuroendocrine functions of the hypothalamus, which are correlated with the development of PTSD. A better understanding of the role of the hypothalamus in PTSD could help develop better treatments for this debilitating condition.

Childhood adversities and mental disorders in first-year college students: results from the World Mental Health International College Student Initiative

BACKGROUND

This study investigates associations of several dimensions of childhood adversities (CAs) with lifetime mental disorders, 12-month disorder persistence, and impairment among incoming college students.

METHODS

Data come from the World Mental Health International College Student Initiative (WMH-ICS). Web-based surveys conducted in nine countries (n = 20 427) assessed lifetime and 12-month mental disorders, 12-month role impairment, and seven types of CAs occurring before the age of 18: parental psychopathology, emotional, physical, and sexual abuse, neglect, bullying victimization, and dating violence. Poisson regressions estimated associations using three dimensions of CA exposure: type, number, and frequency.

RESULTS

Overall, 75.8% of students reported exposure to at least one CA. In multivariate regression models, lifetime onset and 12-month mood, anxiety, and substance use disorders were all associated with either the type, number, or frequency of CAs. In contrast, none of these associations was significant when predicting disorder persistence. Of the three CA dimensions examined, only frequency was associated with severe role impairment among students with 12-month disorders. Population-attributable risk simulations suggest that 18.7-57.5% of 12-month disorders and 16.3% of severe role impairment among those with disorders were associated with these CAs.

CONCLUSION

CAs are associated with an elevated risk of onset and impairment among 12-month cases of diverse mental disorders but are not involved in disorder persistence. Future research on the associations of CAs with psychopathology should include fine-grained assessments of CA exposure and attempt to trace out modifiable intervention targets linked to mechanisms of associations with lifetime psychopathology and burden of 12-month mental disorders.

Childhood adversities and post-military-service incarceration in a male UK Armed Forces Veteran sample from Northern Ireland

LAY SUMMARY

Experiencing stressful or traumatic events in childhood has been linked with negative outcomes later in adulthood, one of which is involvement with the criminal justice system. This study explored whether there was a relationship between experiencing stressful life events in childhood and incarceration in adulthood (post-military service) among UK Armed Forces Veterans based in Northern Ireland (NI). Some individuals may experience only one type of adversity, some may experience many types of adversities, and others may experience no adversity. This study used a statistical technique (latent class analysis) that allowed the authors to explore how adverse childhood experiences (ACEs) varied among a sample of UK Armed Forces Veterans residing in NI. It revealed four groups of Veterans, each characterized by different types of experiences in childhood. The authors explored whether belonging to these groups increased the likelihood of incarceration, finding that those who experienced multiple adversities were at greater risk of incarceration after military service. Personnel involved in the care and support of military personnel should consider military personnel’s history of multiple ACEs.

Epidemiology of Childhood Witnessing Domestic Violence and Exploration of Its Relationships With Affective Lability and Suicide Attempts in Chinese Young Adults

Childhood witnessing domestic violence (CWDV) exerts short- and long-term negative impacts on emotional and behavioral health. The present study investigated the epidemiological features of CWDV, and its negative impact on psychological outcomes in a sample of Chinese college students. The mediating role of emotion regulation strategies on CWDV associations with psychological outcomes and gender differences in these relationships were examined. A total of 3,126 respondents (1,034 males; 2,086 females; 6 missing data in gender) completed the study questionnaire, which included demographic characteristics, CWDV, and suicide attempt history items as well as the Emotion Regulation Questionnaire (ERQ) and Affect Lability Scale-18 (ALS-18). Overall, 43.03% of the respondents reported CWDV, including 44.87% of males and 42.09% of females. Higher frequencies of CWDV were found to be related to the following factors: unstable marital status of parents; not being an only child; being a left-behind child, family financial difficulties, consumption of alcohol in the past year, and being in relatively poor physical condition. Among males, ERQ suppression scores were significantly higher for those men who experienced "often or every day" CWDV than for men who indicated that they did not have any history of CWDV (Bonferroni-corrected p = 0.047). More frequent CWDV was associated with higher ALS-18 scores and increased risk of suicide attempts in males and females (p < 0.05), and emotion regulation (suppression) was found to mediate the association between CWDV and affective lability among males. This study revealed high rates of CWDV, and serious impacts of CWDV on mental health in male and female Chinese college students. In males, but not females, emotion regulation strategy use, use of suppression, was found to act as a mediator in the association of CWDV with affective lability. Our findings suggest that interventions for individuals with CWDV should focus on the emotional regulation, which may help them improve mental health, especially in males.

Prevalence and predictors of anxiety disorder courses in the Canadian Armed Forces

Few studies have examined the longitudinal courses of anxiety disorders in military members. This study examined the prevalence and predictors of courses of any anxiety disorder in members and veterans of the Canadian Armed Forces, including no lifetime, remitted, new onset, and persistent/recurrent anxiety disorder. The 2018 Canadian Armed Forces Members and Veterans Mental Health Follow-up Survey is a 16-year follow-up of n = 2941 participants from the Canadian Community Health Survey: Canadian Forces Supplement in 2002. Diagnoses of any DSM-IV anxiety disorder (i.e., generalized anxiety, social anxiety, and/or panic disorder) in 2002 and 2018 were used to create four anxiety course groups. A large proportion of the sample (36.3 %; new onset = 24.6 %, remitting = 6.9 %, and persistent/recurrent = 4.8 %) met criteria for an anxiety disorder during one or both time points. Factors at baseline and/or between 2002 and 2018, including income, education, military rank, comorbidity of PTSD or depression, deployment history, and traumatic events, were positively associated with most anxiety courses relative to no anxiety in analyses. Targeted interventions are needed to help mitigate anxiety disorders among this population. Social support and active coping were protective factors for most anxiety courses and may need to be incorporated into targeted interventions.

Adverse childhood experiences and mental health in military recruits: Exploring gender as a moderator

Adverse childhood experiences (ACEs) have consistently been associated with adult psychopathology and are commonly reported among military populations, with women more likely to report many types of ACEs than men. Limited research has examined the role of gender in the association between ACEs and mental health in military populations. The current study assessed the significance of gender differences in ACEs and mental health and explored the associations among these variables in a sample of Canadian Armed Forces recruits/officer cadets. Analyses with cross-sectional Recruit Health Questionnaire (RHQ) data from 50,603 recruits/officer cadets indicated that women were more likely to report witnessing domestic violence, experiencing sexual abuse, and living with someone with mental health problems or alcohol misuse, odds ratios (ORs) = 1.22-4.35, ps < .001. Women were more likely to screen positive for depression, adjusted (aORs) = 1.25-1.49, p < .001-p = .002, and anxiety, aORs = 2.00-2.33, ps < .001, before basic military training. ACEs were associated with screening positive for probable mental health conditions, aORs = 1.54-6.13, p < .001-p = .017. A significant interaction suggested the association between childhood sexual abuse and depression was stronger for men, aOR = 2.49, p < .001, than women, aOR = 1.63, p = .002, as was the association between childhood sexual abuse and posttraumatic stress disorder, men: aOR = 6.06, p < .001, women: aOR = 3.36, p < .001. These results underscore the importance of considering gender and childhood trauma in mental health interventions with military personnel.

The association of anxiety and stress-related disorders with C-reactive protein (CRP) within UK Biobank

Anxiety and stress-related disorders are both common and disabling psychiatric conditions. There are a number of hypotheses suggesting the underlying pathophysiology of these disorders, however, the exact mechanism is unknown. Inflammation has previously been linked with depression and has more recently been suggested as a possible link to anxiety aetiology. The objectives of this study are to assess the relationship between different anxiety/stress-related disorders and inflammation (measured by C-reactive protein) using the UK Biobank, and also determine whether any relationship between anxiety/stress disorders and inflammation is explained by depressive symptoms and other social and health-related factors. We utilised the UK Biobank for the sample of this study. Our sample included 353,136 participants of which 12,759 (3.61%) had a history of an anxiety (phobic, obsessive-compulsive, or other anxiety disorder including generalised anxiety and panic disorders) or stress-related disorder (including acute stress reaction, post-traumatic stress disorder and adjustment disorders). Four logistic regression models were calculated in which we tested the association between anxiety/stress disorders and C-reactive protein (CRP) >3 ​mg/L, adjusting for covariates (including age, sex, ethnicity, education level, socioeconomic deprivation, depressive symptoms, body mass index (BMI) and multimorbidity). An association was observed between other anxiety disorders (including panic and generalised anxiety disorders) and CRP (OR: 1.164 [95% CI: 1.096–1.236]). This was attenuated in models after the addition of BMI, multimorbidity and depressive symptoms. Stress/adjustment disorders followed a similar pattern of results (OR: 1.107 [95% CI: 1.040, 1.178]), with the association attenuated with the addition of BMI and multimorbidity). Phobic anxiety disorders (OR: 1.059 [95% CI: 0.896, 1.251]) and obsessive-compulsive disorders (OR: 1.299 [95% CI: 0.973, 1.733]) both showed no statistically significant results in any of the models. Our results support the hypothesis that some anxiety and stress-related disorders may be associated with high levels of inflammatory markers, as measured by CRP. Further studies are required to untangle the potential causal relationships involved.

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We explored the association of anxiety and stress-related disorders with C-reactive protein (CRP) using UK Biobank.

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Several disorders (e.g. generalised anxiety, panic and stress/adjustment) were associated with higher levels of CRP.

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Associations were attenuated with adjustment for health-related factors, such as multimorbidity and depressive symptoms.

Mental health symptoms in Public Safety Personnel: Examining the effects of adverse childhood experiences and moral injury

BACKGROUND

Adverse Childhood Experiences (ACEs) increase risk for negative mental health outcomes in adulthood; however, the mechanisms through which ACEs exert their influence on adult mental health are poorly understood. This is particularly true for Public Safety Personnel (PSP; e.g., police, firefighters, paramedics, etc.), a group with unique vulnerability to negative psychiatric sequalae given their chronic exposure to potentially traumatic, work-related events.

OBJECTIVES

To examine the role of moral injury (MI) and emotion regulation in the relation between ACEs and adult mental health symptoms in adulthood.

PARTICIPANTS AND SETTING

Participants (N = 294) included a community sample of Canadian and American PSP members aged 22 to 65.

METHODS

The current study uses cross-sectional data collection via retrospective self-report questionnaires administered between November, 2018 and November, 2019 to assess level of ACEs (ACE-Q), emotion regulation difficulties (DERS) and symptoms of post-traumatic stress (PCL-5), dissociation (MDI), depression, stress, and anxiety (DASS-21). Additionally, participants completed the Moral Injury Assessment for Public Safety Personnel, the first measure of MI developed specifically for PSP.

RESULTS

Path analysis revealed that ACEs significantly predicted adverse mental health symptoms in adulthood; this effect was mediated by symptoms of MI and moderated by difficulties with emotion regulation.

CONCLUSIONS

This study is the first to identify MI as a mechanism involved in the relation between ACEs and adult psychopathology and highlights the protective role of emotion regulation skills. These findings can inform the development of future research and clinical interventions in PSP populations.

Patterns of adverse childhood experiences and depressive symptoms: self-esteem as a mediating mechanism

PURPOSE

There is a growing interest in the co-occurring natures of adverse childhood experiences (ACEs) and unmeasured types of adversity. The current body of knowledge may also lack plausible mechanisms linking ACEs to mental health in young adulthood. This study aims to identify early adversity patterns using expanded ACEs items and investigate the pathway of ACEs and self-esteem to depressive symptoms in young adulthood.

METHODS

Data were obtained from the National Longitudinal Study of Adolescent and Adult Health, including a nationally representative sample in the U.S. (N = 10,702). We identified the ACEs patterns and estimated the direct and indirect associations between ACEs and depressive symptoms through self-esteem, using a latent class analysis with a distal outcome.

RESULTS

This study identified four distinct groups of ACEs that include Child Maltreatment, Household Dysfunction, Violence, and Low Adversity. The Child Maltreatment class showed a significantly higher risk of depressive symptoms compared to other ACEs groups. Self-esteem mediated the negative association of child maltreatment with depressive symptoms. The Violence class presented a significantly higher risk of depressive symptoms than Low Adversity, but no mediation of self-esteem was found.

CONCLUSION

The study highlights the profound consequence of child abuse/neglect and identifies self-esteem as a plausible mediating mechanism. Researchers and practitioners should increase collaboration efforts to prevent early adversity exposures and detrimental effects on mental health.

Relationships Between Childhood Health Experience and Depression Among Older People: Evidence From China

The assessment of childhood health experience helps to identify the risk of depression among older people. Poor childhood experience is generally associated with depression in adulthood. However, whether such association can be extended to older people' life remains unclear. The history of parental mental health was obtained from 2014 CHARLS Wave 3 (Life History Survey) data while other data from 2011 CHARLS Wave 1 baseline data. The study involves 4,306 respondents. The depression was assessed by the Chinese version of Center for Epidemiologic Studies Depression scales (CES-D) using logistic regression model. More than 40% of older people suffered from depression, 25% of whom experienced poor childhood self-reported health. Nearly 20% of their mothers and more than 10% of their fathers had a history of poor mental health. Poor childhood health experiences have shown to be associated with higher odds of depression (good self-reported health OR: 0.732, p = 0.000, 95% CI: 0.633-0.847; poor mother's mental health OR: 1.391, p = 0.001, 95% CI: 1.138-1.699; poor father's mental health OR: 1.457, p = 0.003, 95% CI: 1.141-1.862). There is a high rate of depression among the older adults in China. In China, older people with poor childhood health experiences are more likely to suffer from depression.

Lifetime Prevalence and Comorbidity of Mental Disorders in the Two-wave 2002-2018 Canadian Armed Forces Members and Veterans Mental Health Follow-up Survey (CAFVMHS): Prévalence et Comorbidité de Durée de vie Des Troubles Mentaux Dans l'Enquête de Suivi Sur la Santé Mentale Auprès des Membres des Forces Armées Canadiennes et Des ex-Militaires (ESSMFACM) en Deux Cycles de 2002 à 2018

OBJECTIVE

The current study used the Canadian Armed Forces Members and Veterans Mental Health Follow-up Survey (CAFVMHS) to (1) examine the incidence and prevalence of mental disorders and (2) estimate the comorbidity of mental disorders over the follow-up period.

METHOD

The CAFVMHS (2018) is a longitudinal study with two time points of assessment. The sample is comprised of 2,941 Canadian Forces members and veterans who participated in the 2002 Canadian Community Health Survey: Canadian Forces Supplement. The World Health Organization Composite International Diagnostic Interview (WHO-CIDI) was utilized to diagnose Diagnostic and Statistical Manual-IV post-traumatic stress disorder (PTSD), major depressive episode (MDE), generalized anxiety disorder, social anxiety disorder (SAD), and alcohol abuse and dependence. Self-report health professional diagnoses were assessed for attention deficit hyperactivity disorder (ADHD), mania, obsessive compulsive disorder (OCD), and personality disorder. We established weighted prevalence of mental disorders and examined the association between mental disorders using logistic regression.

RESULTS

In 2018, lifetime prevalence of any WHO-CIDI-based or self-reported mental disorder was 58.1%. Lifetime prevalence of any mood or anxiety disorder or PTSD was 54.0% in 2018. MDE (39.9%), SAD (25.7%), and PTSD (21.4%) were the most common mental disorders. There was a substantial increase in new onset or recurrence/persistence of mental disorders between the two measurement points (16-year assessment gap); 2002-2018 period prevalences were 43.5% for mood and anxiety disorder and 16.8% for alcohol abuse or dependence. The prevalence of self-reported ADHD, OCD, any personality disorder, and mania were 3.3%, 3.0%, 0.8%, and 0.8%, respectively. Comorbidity between mental disorders increased over the follow-up.

CONCLUSIONS

This study demonstrates a high burden of mental disorders among a large Canadian military and veteran cohort. These findings underscore the importance of prevention and intervention strategies to reduce the burden of mental disorders and alcohol use disorders in these populations.

Course and Predictors of Major Depressive Disorder in the Canadian Armed Forces Members and Veterans Mental Health Follow-up Survey: Cours et Prédicteurs du Trouble de Dépression Majeure Dans l'Enquête de Suivi Sur la Santé Mentale Auprès Des Membres des Forces Armées Canadiennes et des ex-Militaires

OBJECTIVES

The present report is the first study of Canadian military personnel to use longitudinal survey data to identify factors that determine major depressive episodes (MDEs) over a period of 16 years.

METHODS

The study used data from the Canadian Armed Forces Members and Veterans Mental Health Follow-up Survey (CAFVMHS) collected in 2018 (n = 2,941, response rate 68.7%) and linked baseline data from the same participants that were collected in 2002 when they were Canadian Regular Force members. The study used structured interviews to identify 5 common Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition mental disorders and collected demographic data, as well as information about traumatic experiences, childhood adversities, work stress, and potential resilience factors. Respondents were divided into 4 possible MDE courses: No Disorder, Remitting, New Onset, and Persistent/Recurrent. Relative risk ratios (RRRs) from multinomial regression models were used to evaluate determinants of these outcomes.

RESULTS

A history of anxiety disorders and post-traumatic stress disorder (RRRs: 1.50 to 20.55), mental health service utilization (RRRs: 1.70 to 12.34), veteran status (RRRs: 1.64 to 2.15), deployment-associated traumatic events (RRRs: 1.71 to 2.27), sexual traumas (RRRs: 1.91 to 2.93), other traumas (RRRs: 1.67 to 2.64), childhood adversities (RRRs: 1.39 to 1.97), avoidance coping (RRRs 1.09 to 1.49), higher frequency of religious attendance (RRRs: 1.54 to 1.61), and work stress (RRRs: 1.05 to 1.10) were associated with MDE courses in most analyses. Problem-focused coping (RRRs: 0.73 to 0.91) and social support (RRRs: 0.95 to 0.98) were associated with protection against MDEs.

CONCLUSIONS

The time periods following deployment and trauma exposure and during the transition from active duty to veteran status are particularly relevant for vulnerability to depression in military members. Interventions that enhance problem-focused coping and social support may be protective against MDEs in military members.

Association of Child Maltreatment and Deployment-related Traumatic Experiences with Mental Disorders in Active Duty Service Members and Veterans of the Canadian Armed Forces: Association de la Maltraitance des Enfants et des Expériences Traumatisantes Liées au Déploiement Avec les Troubles Mentaux Chez les Membres du Service Actif et Les Anciens Combattants des Forces Armées Canadiennes

OBJECTIVE

Mental health among military personnel is an important public health priority. It is known that military personnel experience a high prevalence of child maltreatment and deployment-related traumatic events (DRTEs) and both are related to mental health outcomes. However, few, if any, studies have examined the cumulative and interactive effects of child maltreatment and DRTEs on mental health disorders in a sample of active duty service members and military veterans.

METHODS

Data were from the Canadian Armed Forces (CAF) Members and Veterans Mental Health Follow-up Survey collected in 2018 (N = 2,941, response rate = 68.7%), a 16-year follow-up survey of CAF Regular Force members interviewed in 2002. Five types of child maltreatment and 10 types of DTREs were assessed for impact on mental health. Mental disorders included past 12-month generalized anxiety disorder (GAD), panic disorder, social phobia, and major depressive episode (MDE). Past 12-month symptoms of posttraumatic stress disorder (PTSD) were also examined.

RESULTS

The prevalence of any exposure to child maltreatment and DRTEs was 62.5% and 68.6%, respectively. All types of child maltreatment were associated with increased odds of past 12-month PTSD symptoms and mental disorders with the exception of physical abuse and GAD as well as childhood exposure to intimate partner violence and panic disorder. Cumulative effects of having experienced both child maltreatment and DRTEs increased the odds of past 12-month PTSD symptoms, GAD, social phobia, and MDE. No interaction effects were significant.

CONCLUSIONS

The prevalence of a child maltreatment history is high among active Canadian military and veterans. As well, child maltreatment may increase the likelihood of mental disorders across the life span. This may be especially true for individuals who also experience DRTEs. Understanding these relationships may provide insight into developing effective interventions for military personnel and veteran mental health outcomes.

Course and Predictors of Posttraumatic Stress Disorder in the Canadian Armed Forces: A Nationally Representative, 16-Year Follow-up Study: Cours et prédicteurs du trouble de stress post-traumatique dans les Forces armées canadiennes: une étude de suivi de 16 ans nationalement représentative

OBJECTIVE

This study examined baseline risk and protective predictors and interim correlates of the persistence/recurrence, remission, and onset of posttraumatic stress disorder (PTSD) in a 16-year prospective, nationally representative sample of Canadian Forces members and veterans.

METHODS

The 2018 Canadian Armed Forces Members and Veterans Mental Health Follow-up Survey is a prospective study of 2,941 regular force service members and veterans who participated in the 2002 Canadian Community Health Survey on Mental Health and Wellbeing: Canadian Forces Supplement (n = 5,155; ages 15 to 64 years; response rate 68%). PTSD diagnoses in 2002 and 2018 were used to create 4 groups: (1) no lifetime, (2) remitted, (3) new onset, and (4) persistent/recurrent PTSD. Multinomial regressions were conducted to identify predictors of PTSD courses.

RESULTS

Female sex, being a junior noncommissioned member (vs. officer), and land (vs. air) operations in 2002 were associated with all PTSD courses relative to no lifetime PTSD (relative risk ratio [RRR] range: 1.28 to 3.65). After adjusting for sociodemographic variables, baseline predictors of all PTSD courses included lifetime mental disorder, history of mental health care utilization, all trauma type categories (deployment-associated, sexual, "other"), and the number of lifetime traumatic events (RRR range: 1.14 to 8.95). New ("since 2002") traumas, transitioning to veteran status, and alcohol dependence were mostly associated with the new onset and persistent/recurrent PTSD courses (RRR range: 1.79 to 4.31), while mental health care utilization and greater avoidance coping were associated with all PTSD courses (RRR range: 1.10 to 17.87). Protective factors for several PTSD courses at one or both time points included social support, social network size, and problem-focused coping (RRR range: 0.71 to 0.98).

CONCLUSIONS

This is the first population-based survey to examine the longitudinal course of PTSD in Canadian Forces members. Prevention and intervention programs focused on bolstering social support and active coping strategies as possible protective factors/correlates may help mitigate the development and persistence of PTSD.

The clinical characterization of the adult patient with an anxiety or related disorder aimed at personalization of management

The clinical construct of "anxiety neurosis" was broad and poorly defined, so that the delineation of specific anxiety disorders in the DSM-III was an important advance. However, anxiety and related disorders are not only frequently comorbid, but each is also quite heterogeneous; thus diagnostic manuals provide only a first step towards formulating a management plan, and the development of additional decision support tools for the treatment of anxiety conditions is needed. This paper aims to describe systematically important domains that are relevant to the personalization of management of anxiety and related disorders in adults. For each domain, we summarize the available research evidence and review the relevant assessment instruments, paying special attention to their suitability for use in routine clinical practice. We emphasize areas where the available evidence allows the clinician to personalize the management of anxiety conditions, and we point out key unmet needs. Overall, the evidence suggests that we are becoming able to move from simply recommending that anxiety and related disorders be treated with selective serotonin reuptake inhibitors, cognitive-behavioral therapy, or their combination, to a more complex approach which emphasizes that the clinician has a broadening array of management modalities available, and that the treatment of anxiety and related disorders can already be personalized in a number of important respects.

Childhood trauma is linked to decreased temporal stability of functional brain networks in young adults

BACKGROUND

Both childhood trauma and disruptions in brain functional networks are implicated in the development of psychiatric disorders in early adulthood. However, the relationships between these two factors remain unclear. This study aimed to investigate whether and how childhood trauma would relate to changes of functional network dynamics in young adults.

METHODS

Resting-state functional magnetic resonance imaging data were collected from 53 young healthy adults, whose childhood trauma histories were assessed by the Childhood Trauma Questionnaire (CTQ). Network switching rate, a measure of stability of dynamic brain networks over time, was calculated at both global and local levels for each participant. Switching rates at both levels were compared between participants with and without childhood trauma, and further correlated with CTQ total score.

RESULTS

In the current sample, 19 (35.8%) participants reported a history of childhood trauma. At the global level, participants with childhood trauma showed significantly higher network switching rates than those without trauma (F = 10.021, p = 0.003). A significant positive correlation was found between network switching rates and CTQ scores in the entire sample (r = 0.378, p = 0.007). At the local level, these effects were mainly observed in the default-mode, fronto-parietal, cingulo-opercular, and occipital subnetworks.

CONCLUSIONS

Our study provides preliminary evidence for a possible long-term effect of childhood trauma on brain functional dynamism. These findings may have potential contributions to psychiatric disorders during adulthood.

A bioinformatic study revealed serotonergic neurons are involved in the etiology and therapygenetics of anxiety disorders

Genetic factors contribute to the susceptibility of anxiety disorders (ADs) and responses to associated cognitive-behavioral therapy (CBT). However, the type of brain cell affected by the related genes remains unclear. Previous studies have indicated various important brain neurons associated with psychiatric disorders, highlighting the necessity to study the cellular basis of anxiety. We assembled 37 AD-related genes and 23 CBT-related genes from recent large-scale genome-wide association studies, and then investigated their cell-type specificity in single-cell transcriptome data via an expression weighted cell type enrichment method. Additionally, to investigate the cellular differences between ADs and other psychiatric disorders, we excluded the genes associated with major depressive disorder, bipolar disorder, and neuroticism, resulting in 29 AD-specific genes. Remarkably, results indicate that serotonergic neurons are significantly associated with both AD-related and CBT-related genes, despite the two gene sets showing no overlap. These observations provide evidence that serotonergic neurons are involved in the etiology and therapygenetics of ADs. Moreover, results also showed that serotonergic neurons are associated with AD-specific genes, providing a supplementary finding that is in opposition to previous studies that found no evidence for the association between serotonergic neurons and psychiatric disorders via the same strategy. In summary, the current study found that serotonergic neurons are involved in the etiology and therapygenetics of ADs, providing insights into their genetic and cellular basis. Further, this cellular difference study may deepen our understanding of ADs and other psychiatric disorders.

Internet-based cognitive and behavioural therapies for post-traumatic stress disorder (PTSD) in adults

BACKGROUND

Therapist-delivered trauma-focused psychological therapies are effective for post-traumatic stress disorder (PTSD) and have become the accepted first-line treatments. Despite the established evidence-base for these therapies, they are not always widely available or accessible. Many barriers limit treatment uptake, such as the number of qualified therapists available to deliver the interventions; cost; and compliance issues, such as time off work, childcare, and transportation, associated with the need to attend weekly appointments. Delivering Internet-based cognitive and behavioural therapy (I-C/BT) is an effective and acceptable alternative to therapist-delivered treatments for anxiety and depression.

OBJECTIVES

To assess the effects of I-C/BT for PTSD in adults.

SEARCH METHODS

We searched MEDLINE, Embase, PsycINFO and the Cochrane Central Register of Controlled Trials to June 2020. We also searched online clinical trial registries and reference lists of included studies and contacted the authors of included studies and other researchers in the field to identify additional and ongoing studies.

SELECTION CRITERIA

We searched for RCTs of I-C/BT compared to face-to-face or Internet-based psychological treatment, psychoeducation, wait list, or care as usual. We included studies of adults (aged over 16 years), in which at least 70% of the participants met the diagnostic criteria for PTSD, according to the Diagnostic and Statistical Manual (DSM) or the International Classification of Diseases (ICD).

DATA COLLECTION AND ANALYSIS

Two review authors independently assessed abstracts, extracted data, and entered data into Review Manager 5. The primary outcomes were severity of PTSD symptoms and dropouts. Secondary outcomes included diagnosis of PTSD after treatment, severity of depressive and anxiety symptoms, cost-effectiveness, adverse events, treatment acceptability, and quality of life. We analysed categorical outcomes as risk ratios (RRs), and continuous outcomes as mean differences (MD) or standardised mean differences (SMDs), with 95% confidence intervals (CI). We pooled data using a fixed-effect meta-analysis, except where heterogeneity was present, in which case we used a random-effects model. We independently assessed the included studies for risk of bias and we evaluated the certainty of available evidence using the GRADE approach; we discussed any conflicts with at least one other review author, with the aim of reaching a unanimous decision.

MAIN RESULTS

We included 13 studies with 808 participants. Ten studies compared I-C/BT delivered with therapist guidance to a wait list control. Two studies compared guided I-C/BT with I-non-C/BT. One study compared guided I-C/BT with face-to-face non-C/BT. There was substantial heterogeneity among the included studies. I-C/BT compared with face-to-face non-CBT Very low-certainty evidence based on one small study suggested face-to-face non-CBT may be more effective than I-C/BT at reducing PTSD symptoms post-treatment (MD 10.90, 95% CI 6.57 to 15.23; studies = 1, participants = 40). There may be no evidence of a difference in dropout rates between treatments (RR 2.49, 95% CI 0.91 to 6.77; studies = 1, participants = 40; very low-certainty evidence). The study did not measure diagnosis of PTSD, severity of depressive or anxiety symptoms, cost-effectiveness, or adverse events. I-C/BT compared with wait list Very low-certainty evidence showed that, compared with wait list, I-C/BT may be associated with a clinically important reduction in PTSD post-treatment (SMD -0.61, 95% CI -0.93 to -0.29; studies = 10, participants = 608). There may be no evidence of a difference in dropout rates between the I-C/BT and wait list groups (RR 1.25, 95% CI 0.97 to 1.60; studies = 9, participants = 634; low-certainty evidence). I-C/BT may be no more effective than wait list at reducing the risk of a diagnosis of PTSD after treatment (RR 0.53, 95% CI 0.28 to 1.00; studies = 1, participants = 62; very low-certainty evidence). I-C/BT may be associated with a clinically important reduction in symptoms of depression post-treatment (SMD -0.51, 95% CI -0.97 to -0.06; studies = 7, participants = 473; very low-certainty evidence). Very low-certainty evidence also suggested that I-C/BT may be associated with a clinically important reduction in symptoms of anxiety post-treatment (SMD -0.61, 95% CI -0.89 to -0.33; studies = 5, participants = 345). There were no data regarding cost-effectiveness. Data regarding adverse events were uncertain, as only one study reported an absence of adverse events. I-C/BT compared with I-non-C/BT There may be no evidence of a difference in PTSD symptoms post-treatment between the I-C/BT and I-non-C/BT groups (SMD -0.08, 95% CI -0.52 to 0.35; studies = 2, participants = 82; very low-certainty evidence). There may be no evidence of a difference between dropout rates from the I-C/BT and I-non-C/BT groups (RR 2.14, 95% CI 0.97 to 4.73; studies = 2, participants = 132; I² = 0%; very low-certainty evidence). Two studies found no evidence of a difference in post-treatment depressive symptoms between the I-C/BT and I-non-C/BT groups (SMD -0.12, 95% CI -0.78 to 0.54; studies = 2, participants = 84; very low-certainty evidence). Two studies found no evidence of a difference in post-treatment symptoms of anxiety between the I-C/BT and I-non-C/BT groups (SMD 0.08, 95% CI -0.78 to 0.95; studies = 2, participants = 74; very low-certainty evidence). There were no data regarding cost-effectiveness. Data regarding adverse effects were uncertain, as it was not discernible whether adverse effects reported were attributable to the intervention.

AUTHORS' CONCLUSIONS

While the review found some beneficial effects of I-C/BT for PTSD, the certainty of the evidence was very low due to the small number of included trials. This review update found many planned and ongoing studies, which is encouraging since further work is required to establish non-inferiority to current first-line interventions, explore mechanisms of change, establish optimal levels of guidance, explore cost-effectiveness, measure adverse events, and determine predictors of efficacy and dropout.

Adverse Childhood Experiences and the Risk of Coronary Heart Disease in Adulthood: Examining Potential Psychological, Biological, and Behavioral Mediators in the Whitehall II Cohort Study

Background

This study investigated potential psycho‐bio‐behavioral mediators of the association between adverse childhood experiences (ACEs) and the risk of coronary heart disease (CHD) in adulthood.

Methods and Results

Participants were 5610 British civil servants (mean age, 55.5; 28% women) from the Whitehall II cohort study without CHD at baseline in 1997 to 1999 (wave 5) when retrospective data on the number of ACEs were collected via questionnaire (range, 0–8). Potential mediators assessed at wave 5 included depression and anxiety symptoms, health behaviors (smoking, alcohol dependence, sleep, and physical activity), and cardiometabolic dysregulations. New diagnoses of CHD (myocardial infarction, definite angina, coronary artery bypass grafting, or percutaneous transluminal coronary angioplasty) were assessed from wave 6 (2001) to wave 11 (2012–2013). Logistic regressions examined associations between ACEs, potential mediators, and CHD during the follow‐up period. Natural indirect effects were examined using mediation analysis. A total of 566 (10.1%) participants developed CHD during the follow‐up period. ACEs were associated with an increased likelihood of CHD (odds ratio per ACE, 1.09; 95% CI, 1.00–1.19). Controlling for age and sex, mediation analyses revealed an indirect effect of depression symptoms (natural indirect effects, 1.05; 95% CI, 1.03–1.07), anxiety symptoms (natural indirect effects, 1.12; 95% CI, 1.10–1.15), and a greater number of cardiometabolic dysregulations (natural indirect effects, 1.02; 95% CI, 1.01–1.03) in the association between ACEs and incident CHD. Behavioral factors were not statistically significant mediators.

Conclusions

Depression symptoms, anxiety symptoms, and cardiometabolic dysregulations partially mediated the association between ACEs and CHD. Regular screening and treatment of symptoms of psychological disorders and cardiometabolic dysregulations may help mitigate the long‐term health burden of ACEs.

Adverse and Benevolent Childhood Experiences Predict Mental Health During the COVID-19 Pandemic

Adverse childhood experiences (ACEs) are associated with poorer adult mental health, and benevolent childhood experiences (BCEs) are associated with better adult mental health. This study aims to test whether ACEs and BCEs predict adult mental health above and beyond current stress and social support during the COVID-19 pandemic. We analyzed data from undergraduate and graduate students (N = 502) at an urban private university in the Western United States. An online survey was conducted to assess ACEs and BCEs, current stress and social support, depressive and anxiety symptoms, perceived stress, and loneliness in May 2020. Higher levels of ACEs were associated with higher levels of depressive symptoms, β = 0.45, p = 0.002. Higher levels of BCEs were associated with lower depressive symptoms, β = −0.39, p = 0.03; lower perceived stress, β = −0.26, p = 0.002; and less loneliness, β = −0.12, p = 0.04. These associations held while controlling for current stress, social support, and socioeconomic status. Childhood experiences are associated with mental health during the COVID-19 pandemic. BCEs should be considered an important promotive factor, independent of ACEs, for psychological well-being during a global public health crisis. BCEs should be included along with ACEs in future research, assessment, and screening with distressed and vulnerable populations.

Age at entry to UK military service and long-term mental health

INTRODUCTION

It has been suggested that 'junior entry' to the UK Armed Forces (prior to age 17.5 years) increases the risk of adverse mental health outcomes. We used data from a large cohort of veterans to examine long-term mental health outcomes in veterans by age at entry to the UK Armed Forces, compared with non-veterans.

METHODS

Retrospective cohort study of 78 157 veterans in Scotland, born between 1945 and 1995 and and 252 637 matched non-veterans, with up to 37 years follow-up, using Cox proportional hazard models to examine the association between veteran status and cumulative risk of major mental health disorder, stratified by birth cohort, and age at recruitment for the veterans.

RESULTS

The risk of mental health disorder in the veterans increased with age at entry, ranging from HR 1.12, 95% CI 1.06 to 1.18, p<0.001 for junior entrants to HR 1.37, 95% CI 1.27 to 1.80, p<0.001 for those aged 20-25 years at entry. The pattern was most marked for veterans born before 1960, and age at recruitment had little impact in recent birth cohorts. Post-traumatic stress disorder accounted for most of the observed differences. Younger age at recruitment was associated with longer service, median 7.4 years (IQR 3.0-14.7) compared with 5.6 years (IQR 2.1-11.7) for entrants aged 20-25 years.

CONCLUSION

We found no evidence that early recruitment is associated with adverse impact on long-term mental health. Paradoxically, it was veterans who entered service at age 20-25 years who demonstrated increased risk, although this attenuated in more recent birth cohorts.

The environmental enrichment model revisited: A translatable paradigm to study the stress of our modern lifestyle

Mounting evidence shows that physical activity, social interaction and sensorimotor stimulation provided by environmental enrichment (EE) exert several neurobehavioural effects traditionally interpreted as enhancements relative to standard housing (SH) conditions. However, this evidence rather indicates that SH induces many deficits, which could be ameliorated by exposing animals to an environment vaguely mimicking some features of their wild habitat. Rearing rodents in social isolation (SI) can aggravate such deficits, which can be restored by SH or EE. It is not surprising, therefore, that most preclinical stress models have included severe and unnatural stressors to produce a stress response prominent enough to be distinguishable from SH or SI-frequently used as control groups. Although current stress models induce a stress-related phenotype, they may fail to represent the stress of our urban lifestyle characterized by SI, poor housing and working environments, sedentarism, obesity and limited access to recreational activities and exercise. In the following review, we discuss the stress of living in urban areas and how exposures to and performing activities in green environments are stress relievers. Based on the commonalities between human and animal EE, we discuss how models of housing conditions (e.g., SI-SH-EE) could be adapted to study the stress of our modern lifestyle. The housing conditions model might be easy to implement and replicate leading to more translational results. It may also contribute to accomplishing some ethical commitments by promoting the refinement of procedures to model stress, diminishing animal suffering, enhancing animal welfare and eventually reducing the number of experimental animals needed.

The imprint of childhood adversity on emotional processing in high functioning young adults

Adverse childhood experiences (ACEs) have been acknowledged as risk factors for increased mental health complications in adulthood, specifically increasing susceptibility to developing psychopathology upon exposure to trauma. Yet, little is known regarding the impact of mild ACEs on highly functioning population. In this study forty participants were selected from a group of 366 highly selected military parachute trainees using the self-report "childhood trauma questionnaire," and classified into two groups of 20 each, with and without ACEs. Behavioral measurements were obtained before and at the peak of an intensive combat training period, including anxiety, depression and executive function assessment. Functional MRI including a negative emotional face perception task was conducted at the first time point. Psychometric and cognitive measurements revealed higher levels of anxiety and depressive symptoms, and more difficulties in executive functioning in the ACE group at baseline. Slower reaction time to emotional faces presentation was found in the ACE group. Lower activation in response to negative emotional faces stimuli was found in this group in bilateral secondary visual areas, left anterior insula, left parietal cortex and left primary motor and sensory regions. In contrast, higher activation in the ACE group was found in the right ventral lateral prefrontal cortex (Vlpfc). No significant differences between groups were detected in the amygdala. To conclude, mild adverse childhood experiences produce long-term sequela on psychological wellbeing and neurocircuitry even in high functioning population. Brain regions modulated by childhood trauma may instigate avoidance mechanisms dampening the emotional and cognitive effects of intensive stress.

Childhood adversity and common mental disorders in young employees in Sweden: is the association affected by early adulthood occupational class?

BACKGROUND

Childhood adversities are associated with an elevated risk for common mental disorders (CMDs). Whether the strength of the association also holds for young employees is unclear. Given the increase in CMD rates in young adults over the past decade, identification of risk factors has important implications for future public health interventions. The current study aimed to investigate the effects of childhood adversities on CMDs. Additionally, the role of occupational class (non-manual/manual workers) in the relationship was examined.

METHODS

This population-based longitudinal cohort study included 544,003 employees, 19-29 years, residing in Sweden in 2009. Adversities included parental death, parental mental and somatic disorders, parental separation or single-parent household, household public assistance and residential instability. Estimates of risk of CMDs, measured as prescription of antidepressants and/or psychiatric care with a clinical diagnosis of CMDs, between 2010 and 2016 were calculated as relative risks (RR) with 95% confidence intervals (CI), using a modified Poisson regression analysis. Occupational class (non-manual/manual workers) was explored as a potential moderator.

RESULTS

In both manual and non-manual workers, childhood adversities were associated with an elevated risk of subsequent CMDs. The risk was moderated by occupational class, i.e., especially pronounced risk was found in manual workers who had experienced cumulative adversity (adjusted RR 1.76, 95% CI 1.70-1.83) when compared to non-manual workers with no adversity. Among the adversities examined, having had a parent treated for a mental disorder, having grown up in a household living on public assistance or having experienced residential instability were the strongest predictors of CMDs.

CONCLUSION

Our findings suggest that, among young employees, manual workers with a history of multiple childhood adversities are especially vulnerable to subsequent CMDs.

Adverse Childhood Events in American Indian/Alaska Native Populations

INTRODUCTION

Adverse childhood experiences are linked to deleterious outcomes in adulthood. Certain populations have been shown to be more vulnerable to adversity in childhood than others. Despite these findings, research in this area lacks an empirical investigation that examines adverse childhood experiences among American Indian and Alaska Native populations using large, nationally representative data. As such, the authors have compiled what they believe is the largest empirical investigation of adverse childhood experiences among American Indian and Alaska Native individuals to date.

METHODS

Data were collected from the Behavioral Risk Factor Surveillance System from 34 states (2009-2017), whereby all individuals self-report as American Indian and Alaska Native (N=3,894). Adverse childhood experience scores were calculated and further stratified by sex, age, household income, education, employment status, sexual orientation, Census region, and state. In addition, frequencies and prevalence of each adverse childhood experience domain (stratified by the same categories) were calculated. Analysis was conducted in 2019.

RESULTS

The average adverse childhood experience score among American Indians and Alaska Natives was 2.32, higher than those of individuals identifying as White (1.53), Black (1.66), and Hispanic (1.63). Female participants had a higher average adverse childhood experience score than male participants (2.52 vs 2.12). Generally, younger individuals and those with lower incomes reported higher adverse childhood experience scores, whereas those with higher educational attainment reported lower scores.

CONCLUSIONS

Compared with the few studies among American Indian and Alaska Native populations that have used either smaller samples or nontraditional adverse childhood experience data (i.e., asking parents about their children's experiences), these results present overall higher adverse childhood experience averages than previously published studies. Nevertheless, aligning with other research on adverse childhood experiences, female individuals, younger adults, and sexual minorities reported higher adverse childhood experiences scores than other categories in their respective demographics.

Alexithymia

Humans are highly adept at differentiating, regulating, and responding to their emotions. At the core of all these functions is emotional awareness: the conscious feeling states that are central to human mental life. Disrupted emotional awareness-a subclinical construct commonly referred to as alexithymia-is present in a range of psychiatric and neurological disorders and can have a deleterious impact on functional outcomes and treatment response. This chapter is a selective review of the current state of the science on alexithymia. We focus on two separate but related issues: (i) the functional deficits associated with alexithymia and what they reveal about the importance of emotional awareness for shaping normative human functioning, and (ii) the neural correlates of alexithymia and what they can inform us about the biological bases of emotional awareness. Lastly, we outline challenges and opportunities for alexithymia research, focusing on measurement issues and the potential utility of formal computational models of emotional awareness for advancing the fields of clinical and affective science.

Adverse and Benevolent Childhood Experiences Predict Mental Health During the COVID-19 Pandemic

Adverse childhood experiences (ACEs) are associated with poorer adult mental health, and benevolent childhood experiences (BCEs) are associated with better adult mental health. This study aims to test whether ACEs and BCEs predict adult mental health above and beyond current stress and social support during the COVID-19 pandemic. We analyzed data from undergraduate and graduate students (N = 502) at an urban private university in the Western United States. An online survey was conducted to assess ACEs and BCEs, current stress and social support, depressive and anxiety symptoms, perceived stress, and loneliness in May 2020. Higher levels of ACEs were associated with higher levels of depressive symptoms, β = 0.45, p = 0.002. Higher levels of BCEs were associated with lower depressive symptoms, β = -0.39, p = 0.03; lower perceived stress, β = -0.26, p = 0.002; and less loneliness, β = -0.12, p = 0.04. These associations held while controlling for current stress, social support, and socioeconomic status. Childhood experiences are associated with mental health during the COVID-19 pandemic. BCEs should be considered an important promotive factor, independent of ACEs, for psychological well-being during a global public health crisis. BCEs should be included along with ACEs in future research, assessment, and screening with distressed and vulnerable populations.

Associations between adverse childhood experiences and weight, weight control behaviors and quality of life in Veterans seeking weight management services

INTRODUCTION

A neglected area of trauma research with Veterans is the study of Adverse Childhood Experiences (ACEs). The present study aimed to examine the prevalence of ACEs, and to explore relationships between ACEs and measures of weight, eating behaviors and quality of life in weight loss seeking Veterans.

METHODS

Participants were 191 Veterans [mean age 58.9 (SD = 12.8), mean Body Mass Index (BMI) 35.4 (SD = 6.1), 86.9% male, 33.7% racial/ethnic minority] receiving care at VA Connecticut Healthcare System (VA CT) who attended an orientation session of VA's behavioral weight management program. Participants completed a measure of ACEs and measures related to weight, eating and health.

RESULTS

Among completers, 68.6% endorsed at least one ACE. The average number of reported ACEs was 2.2 (SD = 2.5), with 48.7% of Veterans reporting more than one type of ACE. Women were more likely to report any ACE (88.0% vs. 65.6%, p = .025) and reported significantly more ACEs compared to males (4.2 vs. 1.9, p < .001). ACEs were associated with lower physical activity (p = .05), lower quality of life (p's < 0.05), and lower weight-related quality of life (p < .01), but not weight, weight control strategies, binge eating, or alcohol use.

CONCLUSION

ACEs are common among weight loss seeking Veterans, particularly among female Veterans. Findings suggest that there is a high rate of ACEs in Veterans, which are associated with exercise and quality of life outcomes, but not diet and weight outcomes.

The mediating role of resilience on psychopathology following childhood adversities among UK armed forces veterans residing in Northern Ireland

BACKGROUND

Childhood adversities can have a deleterious impact on mental health. Elevated levels of such adversities have been reported in veteran populations. Levels of resilience may be protective but early adverse experiences may impact on the development of resilience in the first instance.

OBJECTIVE

This study aims to identify classes of childhood adversities among UK military veterans residing in Northern Ireland (NI) and explore levels of resilience and the mediating role resilience may play following such experiences in relation to mental health.

METHOD

The study utilizes data from the Northern Ireland Veterans' Health and Wellbeing Study (n = 656). All participants were UK Armed Forces veterans who were residents of NI with an average age of 56 (586 males, 70 females).

RESULTS

Four childhood adversity classes were revealed, with almost a half of the sample experiencing early adverse experiences. Individuals who experienced a range of adversities, particularly those related to maltreatment were more likely to have PSTD, depression and anxiety disorders and lower levels of resilience. However, those who experienced adversity related to family dysfunction had similar levels of resilience as the low risk class, suggesting tentatively that some adversity may be protective. Mediation analyses revealed that veterans with elevated levels of resilience were less likely to have psychological problems following negative childhood experiences.

CONCLUSIONS

The study highlights the importance of promoting resilience building programmes among military veterans, especially among those who experienced maltreatment as a child.

The Mediating Role of Alexithymia in the Association Between Adverse Childhood Experiences and Postdeployment Mental Health in Canadian Armed Forces Personnel

Recent studies showing an association between adverse childhood experiences and the development of alexithymia in military personnel have generated interest regarding the role of alexithymia in the pathway linking childhood trauma exposure to mental health disorders. Accordingly, the current study was conducted to (a) examine the associations among adverse childhood experiences, alexithymia, and symptoms of depression and posttraumatic stress disorder (PTSD) among recently deployed Canadian military personnel and (b) assess the mediating role of alexithymia in these associations. Data collected from 2,927 members of the Canadian Armed Forces at baseline and after their return from an overseas deployment were subjected to a prospective path analysis. The results of the path analysis, R² = .35, pointed to a significant direct effect of childhood adversity on postdeployment mental health symptoms. Contrary to our expectations, the results also pointed to a negative indirect effect of childhood neglect, suggesting that childhood neglect contributed to lower levels of postdeployment depression and PTSD symptoms through the dimension of alexithymia related to difficulty in describing feelings. These patterns of associations, for the most part, persisted even when accounting for combat exposure during recent deployments, R² = .42. The present results are discussed in light of study limitations and methodological considerations, and policy and clinical implications are noted.

Is the psychological impact of exposure to COVID-19 stronger in adolescents with pre-pandemic maltreatment experiences? A survey of rural Chinese adolescents

BACKGROUND

Since the COVID-19 outbreak at the end of 2019, it has evolved into a global pandemic with tremendous mental health impact besides the threats to people's physical health.

OBJECTIVE

The aims were to examine whether exposure to COVID-19 predicts elevated levels of anxiety and post-traumatic stress symptoms and whether pre-pandemic maltreatment experiences exacerbate this impact on mental health in adolescents.

PARTICIPANTS AND SETTING

The survey was conducted online from February 8 st to February 27th, 2020, and the questionnaires were distributed and retrieved through a web-based platform. This study includes a total of 6196 subjects, aged range from 11 to 18 years old.

METHODS

Several multivariable linear regressions were used to analyse the data.

RESULTS

The largest variance in PTSS and anxiety problems was explained by ACEs, with more pre-pandemic maltreatment experiences predicting more PTSS (effect size beta = 0.16∼0.27), and more anxiety (effect size beta = 0.32∼0.47). Experienced or subjective fear of exposure to COVID-19 predicted statistically significant variance in PTSS and anxiety, and standardized betas ranged from 0.04 to 0.09. Participants who had adverse childhood experiences and had experienced exposure to COVID-19 showed elevated PTSS.

CONCLUSIONS

After pre-pandemic maltreatment experiences the impact of exposure to COVID-19 on mental health may be stronger. Scars from the past seem to be vulnerabilities during societal upheaval. We therefore suggest that when exposed to COVID-19 rural adolescents should get prioritized professional family support and mental health counseling in particular when they have experienced family abuse and neglect in childhood, even though such support is more difficult to organize in rural areas.

Features of Childhood Maltreatment and Resilience Capacity in Adulthood: Results from a Large Community-Based Sample

Childhood maltreatment is consistently associated with poor outcomes. However, few epidemiological studies have examined the association between childhood maltreatment and adult resilience capacity, defined as one's perceived ability to cope successfully with challenges. This study aimed to determine associations between adult resilience capacity and specific types and features of childhood maltreatment. Participants were African American adults recruited from a public urban hospital in Atlanta, GA (N = 1,962) between 2005 and 2013. Childhood maltreatment, including witnessing domestic violence or physical, emotional, and sexual abuse, was assessed retrospectively using the Traumatic Events Inventory. Perceived resilience capacity was assessed using the Connor-Davidson Resilience Scale. Linear regressions were performed assessing the association between resilience capacity and childhood maltreatment exposure in general, as well as specific dimensions of exposure, including type, co-occurrence, and developmental timing, adjusting for covariates. Participants exposed to any maltreatment reported lower resilience capacity than unexposed peers, B = -0.38, SE = 0.04, p < .001. All maltreatment types were negatively associated with resilience capacity, even after adjusting for other lifetime trauma exposure. Only emotional abuse remained significantly associated with resilience capacity after accounting for current psychological distress, B = -0.11, SE = 0.05, p = .022. Maltreatment co-occurrence followed an inverse dose-response relationship with resilience capacity: For each additional maltreatment type, scores decreased by 0.18 units (SD = 0.02), p < .001. Finally, the developmental timing of maltreatment did not reveal any differential influences on resilience capacity. The results suggest that childhood emotional abuse and co-occurrence of maltreatment types may be particularly deleterious to adult resilience capacity.

The frequencies and disparities of adverse childhood experiences in the U.S

BACKGROUND

Adversity experienced during childhood manifests deleteriously across the lifespan. This study provides updated frequency estimates of ACEs using the most comprehensive and geographically diverse sample to date.

METHODS

ACEs data were collected via BRFSS (Behavioral Risk Factor Surveillance System). Data from a total of 211,376 adults across 34 states were analyzed. The ACEs survey is comprised of 8 domains: physical/emotional/sexual abuse, household mental illness, household substance use, household domestic violence, incarcerated household member, and parental separation/divorce. Frequencies were calculated for each domain and summed to derive mean ACE scores. Findings were weighted and stratified by demographic variables. Group differences were assessed by post-estimation F-tests.

RESULTS

Most individuals experienced at least one ACE (57.8%) with 21.5% experiencing 3+ ACEs. F-tests showed females had significantly higher ACEs than males (1.64 to 1.46). Multiracial individuals had a significantly higher ACEs (2.39) than all other races/ethnicities, while White individuals had significantly lower mean ACE scores (1.53) than Black (1.66) or Hispanic (1.63) individuals. The 25-to-34 age group had a significantly higher mean ACE score than any other group (1.98). Generally, those with higher income/educational attainment had lower mean ACE scores than those with lower income/educational attainment. Sexual minority individuals had higher ACEs than straight individuals, with significantly higher ACEs in bisexual individuals (3.01).

CONCLUSION

Findings highlight that childhood adversity is common across sociodemographic, yet higher in certain categories. Identifying at-risk populations for higher ACEs is essential to improving the health outcomes and attainment across the lifespan.

Childhood determinants of past-year anxiety and depression in recently transitioned military personnel

BACKGROUND

Anxiety and depression may hamper a smooth transition from military to civilian life and may be important predictors of longer-term health and functioning. However, it is as yet unclear to what extent they are determined by childhood factors in a recently transitioned population.

METHODS

We utilised logistic regression and Generalised Structural Equation Modelling to analyse associations of ICD-10 past-year anxiety and depression with childhood trauma and disorder in a recently transitioned population using detailed interview data from the ADF (Australian Defence Force) Transition and Wellbeing Research Programme.

RESULTS

Past-year anxiety (including PTSD) was prevalent (36.4%, 95% CI, 31.9-41.1) and associated with childhood anxiety (but not other types of childhood disorder), childhood interpersonal trauma (but not other childhood trauma) and adult-onset trauma. Childhood anxiety had a direct and significant association with past-year anxiety. The pathway between childhood interpersonal trauma and past-year anxiety was fully mediated by childhood anxiety. Past-year depression was less prevalent (11.3%, 95% CI, 8.7-14.5) and had no association with childhood disorder or trauma variables.

LIMITATIONS

The main predictor variables utilized in this analysis were childhood experiences recalled from adulthood, thus rendering the responses vulnerable to autobiographical bias.

CONCLUSIONS

Past-year anxiety was highly prevalent in the period of transition and had strong associations with childhood and military factors, suggesting predictability and potentially preventability.

The Effect and Mechanism of Adverse Childhood Experience on Suicide Ideation in Young Cancer Patients During Coronavirus Disease 2019 (COVID-19) Pandemic

Background and Aim

Coronavirus disease 2019 (COVID-19) is currently prevalent worldwide. This research aimed to explore the effect of adverse childhood experience (ACE) on suicide ideation in young cancer patients during the COVID-19 pandemic. Self-reported questionnaires analyzed the mediating effects of sleep quality, anxiety symptoms, and inflammatory conditions between ACE and suicide ideation.

Materials and Methods

A total of 197 young cancer patients (age 18–40) completed questionnaires and a blood test. Correlation analysis and structural equation model were used to explore the relationships between ACE, sleep quality, anxiety symptom, serum C-reactive protein (CRP) levels and suicide ideation. The mediating roles of sleep quality, anxiety symptoms, and CRP levels on the influence of ACE on suicide ideation were explored.

Results

ACE was positively related to anxiety symptoms, CRP levels, and suicide ideation, and negatively related to sleep quality. Anxiety symptoms and CRP levels were positively related to suicide ideation, while sleep quality was negatively related to suicide ideation. Anxiety symptoms were positively related to CRP levels but negatively related to sleep quality. From these results, we found ACE affected suicide ideation directly and was mediated by roles sleep quality, anxiety symptom and CRP.

Conclusion

ACE not only directly affected suicide ideation but also affected suicide ideation through sleep quality, anxiety symptoms, and inflammatory conditions in young cancer patients during the COVID-19 pandemic. Therefore, targeted intervention and help for cancer patients from the perspective of ACE should be put into practice.

Childhood determinants of suicidality in men recently transitioned from regular military service

OBJECTIVE

Rates of suicidality are higher in military than comparable civilian populations. The period of transition from regular military service may be a time of particular vulnerability. In order to best inform early intervention and prevention strategies, we sought to investigate the childhood determinants (trauma and disorder) of self-reported past-year suicidality (thoughts, plans or attempts) in a population of Australian Defence Force men who had recently (in the previous 5 years) transitioned from regular military service.

METHODS

We analysed self-report, and detailed interview, cross-sectional data to investigate the association between retrospectively reported past-year suicidality and childhood factors (disorder and trauma) and whether these relationships were independent of each other and adult-onset trauma and disorder. We utilised logistic regression techniques and generalised structural equation modelling.

RESULTS

The prevalence of suicidality in transitioned men was 21.6% (95% confidence interval [CI]: [19.9, 23.3]). Suicidality was associated with childhood-onset interpersonal trauma and anxiety and adult-onset anxiety and depression. Generalised structural equation modelling demonstrated that the pathway between childhood interpersonal trauma and suicidality was not fully mediated by childhood anxiety. Restricting the analyses to those previously deployed demonstrated that suicidality had a direct and significant association with childhood-onset factors (anxiety and interpersonal trauma) and adult-onset trauma (deployment and non-deployment related).

CONCLUSION

This study sheds light onto the significance of childhood factors (interpersonal trauma and anxiety) in a population undergoing transition that may revive pre-existing vulnerabilities. These findings have the potential to aid early intervention and prevention strategies in identifying those at risk prior to transition. These findings also imply that early interventions targeting anxiety and interventions to reduce social instability during the transition period may be useful in reducing suicidality during this time. Further prospective studies are needed to further explore these novel findings.

Prevalence, socio-demographic correlates and associations of adverse childhood experiences with mental illnesses: Results from the Singapore Mental Health Study

BACKGROUND

Adverse childhood experiences (ACEs) are associated with deleterious consequences throughout the lifespan of the individual, including an increased risk of mental disorders. However, an in-depth understanding of ACEs in diverse populations is still lacking especially in Asian populations, with few studies done at a population level.

OBJECTIVE

The current study aimed to establish the (i) prevalence of ACEs and its socio-demographic correlates, and, (ii) association of ACEs with mental disorders and suicidality in a multiethnic Asian country.

PARTICIPANTS AND SETTING

Singapore residents aged 18 years and older were recruited from the community as part of a nation-wide cross-sectional epidemiological study.

METHODS

Trained interviewers conducted face-to-face interviews with participants, and administered the Adverse Childhood Experiences - International Questionnaire and the Composite International Diagnostic Interview.

RESULTS

A total of 6126 participants completed the survey. The lifetime prevalence of ACEs in the sample was 63.9 %. Multiple logistic regression analyses revealed that odds of any ACE were higher among those above 65 years (OR = 1.7) and those without university education (OR = 2.2, 1.9, and 1.5 among those with primary and below, secondary and vocational education respectively). The presence of any ACE was significantly associated with increased odds of mood (OR = 3.7, 95 % CI: 2.3-6.0), anxiety (OR = 3.9, 95 % CI: 2.3-6.8) and alcohol use (OR = 1.7, 95 % CI: 1.1-3.0) disorders.

CONCLUSIONS

ACEs are not uncommon in Asian populations. There is a need to build trauma-informed communities that can incorporate the knowledge of the impact of early trauma into policies and programs.

Mothering very young children after wartime deployment: A case report

Parenting very young children in the context of military service, deployment separations, and war-related trauma can be challenging for many families. Female active duty personnel represent one of the fastest growing segments of the military, and recent policy changes have led women to pursue serving in combat positions at much higher rates. While not much is known about service member mothers, some studies have shown that they experience significant symptoms of distress, depression, and anxiety during the deployment cycle, feelings of disconnection from family during reintegration, and higher rates of childhood trauma histories than their male counterparts. Service member mothers who experience the combined stressors of deployment separation, combat exposure, and adverse childhood experiences-a triple threat-may be at serious risk of posttraumatic stress and depressive symptomatology, which can negatively influence the quality and nature of their parenting and parent-child relationships. This case report describes the participation of a young single service member mother and her preschool-aged daughter in a home-based, reintegration program designed for military families with very young children (ages 0-5). The paper illustrates how this relationship-based, reflective parenting intervention was effective in increasing the mother's sense of competence in her parenting and strengthening the parent-child relationship.

Childhood trauma and the impact of deployment on the development of mental disorder in military males

BACKGROUND

Childhood adversity is associated with mental disorder following military deployment. However, it is unclear how different childhood trauma profiles relate to developing a post-deployment disorder. We investigated childhood trauma prospectively in determining new post-deployment probable disorder.

METHODS

In total, 1009 Regular male ADF personnel from the Australian Defence Force (ADF) Middle East Area of Operations (MEAO) Prospective Study provided pre- and post-deployment self-report data. Logistic regression and generalised structural equation modelling were utilised to examine associations between childhood trauma and new post-deployment probable disorder and possible mediator pathways through pre-deployment symptoms.

RESULTS

There were low rates of pre-deployment probable disorder. New post-deployment probable disorder was associated with childhood trauma, index deployment factors (combat role and deployment trauma) and pre-deployment symptoms but not with demographic, service or adult factors prior to the index deployment (including trauma, combat or previous deployment). Even after controlling for demographic, service and adult factors prior to the index deployment as well as index deployment trauma, childhood trauma was still a significant determinant of new post-deployment probable disorder. GSEM demonstrated that the association between interpersonal childhood trauma and new post-deployment probable disorder was fully mediated by pre-deployment symptoms. This was not the case for those who experienced childhood trauma that was not interpersonal in nature.

CONCLUSIONS

To determine the risk of developing a post-deployment disorder an understanding of the types of childhood trauma encountered is essential, and pre-deployment symptom screening alone is insufficient.

Sleep disturbance mediates the association of adverse childhood experiences with mental health symptoms and functional impairment in US soldiers

Adverse childhood experiences (ACEs) can have long-term impacts on a person's mental health, which extend into adulthood. There is a high prevalence of ACEs among service members. Further, service members also report frequently experiencing disrupted sleep. We hypothesized that disrupted sleep may serve a mechanistic function connecting ACEs to functional impairment and poorer mental health. In a cross-sectional sample (n = 759), we found evidence for an indirect effect of ACEs on mental health outcomes through disrupted sleep. In a different sample using two time-points (n = 410), we found evidence for an indirect effect of ACEs on changes in mental health outcomes and functional impairment during a reset period, through changes in disrupted sleep during the same period. Implications, limitations and future research directions are discussed.

Adverse Childhood Experiences and Internalizing Symptoms Among American Indian Adults with Type 2 Diabetes

BACKGROUND

Decades of evidence link adverse childhood experiences (ACEs) to worse health. Despite disproportionate rates of ACEs and health disparities in tribal communities, a gap exists in understanding the effects of ACEs on American Indian (AI) health. The purpose of this study is to estimate frequencies of eight categories of ACEs, assess the risk for internalizing symptoms by each ACE category, and determine if moderate and high levels of ACEs exposures have differential, increasing risk associated with internalizing symptoms for a sample of AI adults with T2D.

METHODS

Five tribal communities participated in a community-based participatory research study. Data from AI adults with T2D were analyzed (N = 192). Frequencies of eight childhood events and situations were assessed, and exposure levels of low (0-1), moderate (2-3), and high levels (4 +) of ACEs were calculated. Odds of screening positive for depression and generalized anxiety disorder (GAD) by each ACE type and moderate and high levels of ACEs were estimated using regression analyses.

RESULTS

Relative to other studies, exposure estimates for each of the eight ACE categories and moderate and high levels of ACEs were high. Sexual and physical abuse, neglect, and household mental illness were positively associated with depressive symptoms, and physical abuse was positively associated with anxiety symptoms. Exposures to moderate and high levels of ACEs were associated with increased odds of screening positive for current depression in a dose-response fashion. A high level of ACEs exposure was also associated with an increased odds of a positive GAD screening.

CONCLUSIONS

This research extends limited knowledge about ACEs and health among AIs. More research is needed to understand the health consequences of ACEs for a population exhibiting health inequities. Components of strategies for addressing ACEs, mental health, T2D complications, and comorbidities are proposed for AIs generally and AI adults with T2D specifically.

The Health and Readiness of Service Members: ACEs to PACEs

INTRODUCTION

Over the past three decades, a growing research base has emerged around the role of adverse childhood experiences (ACEs) in the biological, psychological, social, and relational health and development of children and adults. More recently, the role of ACEs has been researched with military service members. The purpose of this article was to provide a brief description of ACEs and an overview of the key tenets of the theory of toxic stress as well as a snapshot of ACEs and protective and compensatory experiences (PACEs) research with active duty personnel.

METHODS

Ninety-seven active duty personnel completed the study including questions pertaining to demographics, adverse childhood experiences, adult adverse experiences, and PACEs survey.

RESULTS

Significant findings pertaining to ACEs and PACEs were found by service member's sex and rank, with higher ACE scores for men and enlisted service members.

CONCLUSIONS

The contrast by rank and sex in relation to ACEs punctuates the need for attention to ACEs and protective factors among early career service members in order to promote sustainable careers in the military.

Childhood Trauma and Childhood Mental Disorder in Military and Employed Civilian Men

We aimed to retrospectively investigate childhood trauma and childhood mental disorder in military and employed civilian men aged 18 to 54 years. Data, derived from the 2010 Australian Defence Force (ADF) Mental Health Prevalence and Wellbeing Study and the 2007 Australian Bureau of Statistics National Survey of Mental Health and Wellbeing Study, were analyzed and compared using direct age standardization and logistic regression. A greater proportion of ADF reported childhood trauma, multiple trauma types, trauma onset below 12 years of age, and interpersonal trauma than civilian employed men. A greater proportion of ADF reported childhood noninterpersonal trauma, such as accidents, than civilian employed men, with a marked difference in those aged 45 to 54 years. In both populations, childhood disorder was associated with childhood trauma; however, childhood depression was not associated with childhood noninterpersonal trauma in either population. A deeper understanding of the longer-term risk and resilience conferred by different childhood trauma profiles is needed.