Conditional and indirect effects of age of first exposure on PTSD symptoms

The interactive effects of AS and trauma exposure on suicide capability and suicide risk

BACKGROUND

Trauma exposure has been linked with heightened suicide risk purportedly through habituation to threatening stimuli, thereby reducing fear of suicide. However, no research has examined variables that may influence this process. Anxiety sensitivity (AS) is one cognitive-affective factor that may strengthen the relationship between trauma exposure and reduced fear of suicide by amplifying traumatic reactivity. The present study evaluated this by examining the interaction of AS and trauma exposure type (e.g., direct vs. witnessed) predicting fear of suicide and self-reported suicide risk.

METHODS

Participants (n = 124) were recruited for a long-term (∼3-4 years) follow-up after participation in a clinical trial targeting suicide risk factors and were asked to complete self-report measures of trauma history, AS, fear of suicide, and suicide risk.

RESULTS

Significant interactions emerged such that a greater number of direct traumasexperienced predicted lower fear of suicide and greater suicide risk among those with greater AS. The interactive effect of witnessed traumas and AS predicting suicidality was insignificant. Results remained even after including relevant covariates.

DISCUSSION

The current findings suggest that AS augments the effects of repeated trauma exposure on fear of suicide and suicide risk. It is plausible these painful and provocative events are more potent among those with high AS due to the amplification of traumatic affective responses, though future research examining the longitudinal relations is needed to confirm this process.

Mediators and moderator of the effects of early exposure to intimate partner violence on children's mental health

Childhood intimate partner violence (IPV) exposure increases the likelihood of internalizing and externalizing problems. There is substantial variability in children's outcomes following IPV exposure, but the reasons behind this are unclear, particularly among preschool-age children. The current study aimed to examine the direct and indirect effects of IPV on preschoolers' mental health through parent factors (parenting and parental depression), exploring child temperament as a potential moderator of the relation between IPV and child outcomes. Participants were 186 children (85 girls) and their parents living in the United States. Data were initially collected when children were age three, with follow-up at ages four and six. Both parents' baseline IPV perpetration had adverse effects on child outcomes. Mothers' IPV was associated with greater paternal depression, paternal overractivity, and maternal laxness, whereas fathers' IPV was associated with more paternal overreactivity. Only paternal depression mediated the effect of mothers' IPV on child outcomes. Parenting did not mediate nor did child temperament moderate the relation between IPV and child outcomes. Results shed insight into the need to address parental mental health in families experiencing IPV and underline the need for a further exploration of individual- and family-level mechanisms of adjustment following IPV exposure.

Elucidating the relations between adverse childhood experiences, age of exposure to adversity, and adult posttraumatic stress symptom severity in pregnant women

BACKGROUND

Adverse childhood experiences (ACEs) are typically assessed within two subscales: child maltreatment (CM) and household dysfunction (HD). More research is needed about how the CM and HD subscales differentially contribute to adult posttraumatic stress symptoms (PTSS), accounting for additional adversities.

OBJECTIVE, PARTICIPANTS, AND SETTING

In a sample of 137 pregnant women exposed to recent intimate partner violence (IPV) in the United States, this study aimed to (1) explore the contributions of ACEs subscales to pregnant women's PTSS severity, (2) examine the inclusion of the witnessing IPV ACE in the CM subscale, and (3) contextualize the contributions of the ACEs subscales to women's PTSS by examining the moderating effect of age of first ACE exposure.

METHODS

The study used linear, multiple, and hierarchical regression analyses and the Hotelling-Williams test.

RESULTS

The CM subscale predicted pregnant women's PTSS significantly better than the HD subscale, controlling for past-year IPV (t(134) = 2.69, p = .008). Adding the witnessing IPV ACE to the CM subscale did not significantly improve the subscale's prediction of PTSS (ΔR² = 0.07, p = .290). Age of first exposure did not significantly moderate the effects of the CM (β = 0.12, p = .140) or HD (β = -0.10, p = .238) ACEs subscales on PTSS.

CONCLUSIONS

Results suggest that for pregnant women exposed to high levels of trauma, polyvictimization and particularly experiencing multiple types of CM have stronger predictive validity for PTSS than HD. Cumulative victimization may be more influential than age of exposure to adversity.

Trauma Characteristics Moderate the Relation Between Estradiol and Trauma-Related Symptoms

Women are more likely to develop posttraumatic stress disorder (PTSD) than men, and fluctuations in gonadal hormones might contribute to this vulnerability. Low-estradiol states are associated with aversive affective experiences, including trauma-related symptoms. However, the impact of trauma characteristics on the relation between estradiol and trauma-related symptoms is unknown. We used a clinical interview and 10-day ecological momentary assessment (EMA) that spanned low- and high-estradiol menstrual cycle phases to test trauma type, chronicity, and timing as moderators of the association between estradiol and trauma-related symptoms in 40 naturally cycling young women. We tested interactions between trauma characteristics and (a) estradiol on self-reported symptoms and (b) menstrual cycle-related change in estradiol on change in symptoms. Sexual, chronic, and earlier trauma was associated with more severe symptoms as reported during the interview, rs = .51-.33, but not mean symptoms across the EMA. Estradiol at the time of the interview was inversely associated with symptoms in women with sexual but not nonsexual trauma, interaction: B = -12.62 (SE = 5.28), p = .022. Menstrual cycle-related change in estradiol was inversely associated with change in symptoms in women with chronic trauma, B = -9.65 (SE = 3.49), p = .006, and earlier trauma, B = 0.71 (SE = 0.34), p = .036, but not discrete or later trauma. Sexual, chronic, or early trauma exposure might confer higher symptom vulnerability in low-estradiol states. Clinicians who work with women with particular trauma histories might anticipate menstrual cycle-related variation in symptoms.

Types of Childhood Exposure to Violence and Association With Caregiver Trauma in Peru

This study examined typologies of childhood polyvictimization and the associations of profiles with demographic characteristics at the levels of child, household, and primary caregiver. This study evaluated a sample of children aged 4 to 17 years residing in San Juan de Lurigancho District, an urban setting on the edge of Lima, Peru (n = 384). An in-person interview of the primary caregiver of each child was conducted in June 2018, assessing the victimization of the child, the caregiver's exposure to trauma and abuse, and general socioeconomic and demographic characteristics of the household. Latent class analysis was used to identify typologies of child victimization. Follow-up analysis was conducted to quantify differences between the classes which emerged, in terms of the child, caregiver, and household. Five classes emerged: High Peer victimization, Moderate Community victimization; High Community victimization; Verbal Abuse; High victimization across domains; and Low victimization across domains. Caregiver exposure to trauma was positively associated with membership in the high-exposure classes. This study offers a unique opportunity to more deeply understand childhood exposure to violence in Latin America, specifically in an urban setting in Peru, and to further understand how childhood victimization is associated with various characteristics of the child, caregiver, and household. These findings could inform interventions supporting children and families at risk of exposure to violence in Peru or globally.

[Association between psychological violence and posttraumatic stress disorder in a cohort of Brazilian adolescents]

The study analyzed the impact of psychological violence on the development of posttraumatic stress disorder (PTSD). This was a cross-sectional study nested in a cohort in which the second follow-up was conducted in 2016. A questionnaire was applied to 2,486 adolescents and approached individual, family, and social aspects and experience with psychological violence. Propensity score was used to create inverse probability weighting (IPW). Thus, a probability was assigned to each adolescent, where 1/IPW represent those in the exposed group and 1/(1-IPW) those in the unexposed group. This procedure made the two groups more homogeneous and mutually comparable. The association between the occurrence of psychological violence and PTSD was estimated by odds ratios (OR) and 95% confidence intervals (95%CI) via crude binary logistic regression and adjusted logistic regression (weighted by IPW). According to the results, 30.3% reported having suffered severe violence. Prevalence of PTSD was 4.8% among exposed and 1.5% in unexposed to psychological violence. An association was observed between severe violence and PTSD in the two analyses, but the magnitude in the model structured by the propensity score (OR = 1.97; 95%CI: 1.08-3.56) indicated an adjustment to the measure from the crude analysis (OR = 3.40; 95%CI: 2.03-5.69). The current study contributes to the scarce literature on exposure to psychological violence and its association with the development of PTSD, confirming the negative impact of this form of abuse on the individual´s mental health.

Pathways of Internalizing and Posttraumatic Stress Symptoms Across Childhood and Adolescence

Research in adult populations has suggested a number of possible explanations for the high co-morbidity between posttraumatic stress symptoms (PTSS) and internalizing symptoms, including shared risk factors and reciprocal causation. Little research has examined these hypotheses in children or has considered the separation of between- and within-person effects. The objective of this study was to examine pathways between PTSS and internalizing symptoms using two samples drawn from the Longitudinal Studies on Child Abuse and Neglect (LONGSCAN, n = 1221) and the first National Survey of Child and Adolescent Well-Being (NSCAW-I, n = 309). Each sample included three waves of data (LONGSCAN: ages 8, 12, and 16; NSCAW: ages 8, 11, 15). It was hypothesized: (1) PTSS would predict future internalizing symptoms; (2) the strength of the relationship between internalizing symptoms and PTSS would increase over time; and (3) childhood trauma would be associated with higher levels of internalizing symptoms and PTSS. The hypotheses were examined using traditional cross-lagged panel models (CLPMs) as well as a CLPM with random intercepts (RI-CLPM), which has the advantage of separating within-person effects from between-person stability in symptoms. Results from both CLPMs and RI-CLPM support rising symptom comorbidity from late childhood to mid-adolescence. Results between the models, however, suggest that the reciprocal influence between symptom complexes over time may not hold after separating between- and within-persons effects, lending stronger support to the shared risk factors hypothesis and highlighting the need for future research to explore other possible explanatory mechanisms for the rising comorbidity of these symptom complexes over development.

Repairing the effects of childhood trauma: The long and winding road

WHAT IS KNOWN ON THIS SUBJECT?: Domestic and family violence contributes to mental distress and the development of mental illness and can reverberate throughout a person's life. WHAT THIS PAPER ADDS TO EXISTING KNOWLEDGE?: Therapeutic work with people who experience domestic and family violence needs to take considerable time to allow the process to unfold. Understanding the triggers that cause past traumas to be re-experienced helps people to recognize and change their conditioned emotional responses. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: Time needs to be invested to develop a secure and trusting relationship to enable a person to work through childhood experiences that have the potential to overwhelm. It is important for adults who have experienced childhood trauma to have an opportunity to process the abuse to help minimize its intrusion in their lives.

Childhood adversity, mental health, and the perpetration of physical violence in the adult intimate relationships of women prisoners: A life course approach

BACKGROUND

Adverse childhood experiences (ACEs) are common, with nearly two-thirds of adult samples reporting exposure to at least one and one-quarter reporting exposure to three or more distinct types of ACEs. ACEs have been linked to various negative outcomes across the life course, including mental health problems, and the perpetration of physical violence in intimate relationships. However, little is known about the relationships between ACEs, PTSD symptomology, and use of physical violence against an adult intimate partner among incarcerated women.

OBJECTIVE

The purpose of this paper is to examine the relationships between ACEs, PTSD symptoms, and the perpetration of the physical violence in the adult intimate relationships of women prisoners.

METHODS

Using data from the 2014 Oklahoma Study of Incarcerated Mothers and Their Children (N = 349) and structural equation modeling (SEM) techniques, we investigate the potential mediating effect of PTSD symptoms in the relationship between ACEs and perpetrating violence against an intimate partner.

RESULTS

Our findings indicate that PTSD symptomology fully mediates the relationship between ACEs and the perpetration of physical violence against an adult intimate partner, indicating that PTSD experiences may be central to understanding women's pathways toward violence.

CONCLUSIONS

Women prisoners who were exposed to ACEs during childhood were at a particularly elevated risk of developing PTSD symptomology and perpetrating physical violence against an adult intimate partner. Based on the current study's findings, treatment programs that address these complex relationships between ACEs, particularly focusing on the central role of mental health in these processes, are needed for incarcerated women.

"Violence is Everywhere": Childhood Polyvictimization, Perceptions of the Prevalence of Victimization, and Posttraumatic Stress Symptoms

Childhood polyvictimization is related to a heightened risk for mental health and functional problems in young adulthood, including posttraumatic stress symptoms, but little research has examined how perceptions of the prevalence of victimization may contribute to specific symptoms of posttraumatic stress. The primary aims of the current study were to (a) evaluate the accuracy of young adults' beliefs about the prevalence of multiple types of childhood victimization and (b) determine how inaccurate appraisals of victimization prevalence are associated with posttraumatic stress symptoms. College students (n = 369) drawn from two geographic regions of the United States responded to an online survey assessing their experiences of childhood victimization, perceptions about the prevalence of victimization, emotion regulation skills, and mental health. Childhood polyvictimization was significantly and positively related to distorted appraisals of the prevalence of victimization overall (r = .26, p < .001), and emotion regulation was associated with symptoms of posttraumatic stress in all domains. Distorted perceptions of the prevalence of victimization were linked to higher symptoms of hyperarousal, but not to higher symptoms of reexperiencing, avoidance, or negative mood/cognition. Results suggest that emotion regulation skills training is likely to be beneficial for many individuals experiencing posttraumatic stress, and intervention around perceptions of the prevalence of victimization may be useful for addressing symptoms of hyperarousal.

Mapping of Crowdsourcing in Health: Systematic Review

Background

Crowdsourcing involves obtaining ideas, needed services, or content by soliciting Web-based contributions from a crowd. The 4 types of crowdsourced tasks (problem solving, data processing, surveillance or monitoring, and surveying) can be applied in the 3 categories of health (promotion, research, and care).

Objective

This study aimed to map the different applications of crowdsourcing in health to assess the fields of health that are using crowdsourcing and the crowdsourced tasks used. We also describe the logistics of crowdsourcing and the characteristics of crowd workers.

Methods

MEDLINE, EMBASE, and ClinicalTrials.gov were searched for available reports from inception to March 30, 2016, with no restriction on language or publication status.

Results

We identified 202 relevant studies that used crowdsourcing, including 9 randomized controlled trials, of which only one had posted results at ClinicalTrials.gov. Crowdsourcing was used in health promotion (91/202, 45.0%), research (73/202, 36.1%), and care (38/202, 18.8%). The 4 most frequent areas of application were public health (67/202, 33.2%), psychiatry (32/202, 15.8%), surgery (22/202, 10.9%), and oncology (14/202, 6.9%). Half of the reports (99/202, 49.0%) referred to data processing, 34.6% (70/202) referred to surveying, 10.4% (21/202) referred to surveillance or monitoring, and 5.9% (12/202) referred to problem-solving. Labor market platforms (eg, Amazon Mechanical Turk) were used in most studies (190/202, 94%). The crowd workers’ characteristics were poorly reported, and crowdsourcing logistics were missing from two-thirds of the reports. When reported, the median size of the crowd was 424 (first and third quartiles: 167-802); crowd workers’ median age was 34 years (32-36). Crowd workers were mainly recruited nationally, particularly in the United States. For many studies (58.9%, 119/202), previous experience in crowdsourcing was required, and passing a qualification test or training was seldom needed (11.9% of studies; 24/202). For half of the studies, monetary incentives were mentioned, with mainly less than US $1 to perform the task. The time needed to perform the task was mostly less than 10 min (58.9% of studies; 119/202). Data quality validation was used in 54/202 studies (26.7%), mainly by attention check questions or by replicating the task with several crowd workers.

Conclusions

The use of crowdsourcing, which allows access to a large pool of participants as well as saving time in data collection, lowering costs, and speeding up innovations, is increasing in health promotion, research, and care. However, the description of crowdsourcing logistics and crowd workers’ characteristics is frequently missing in study reports and needs to be precisely reported to better interpret the study findings and replicate them.

Peritraumatic reactions in relation to trauma exposure and symptoms of posttraumatic stress in high school students

Background: Exposure to traumatic events is clearly associated with a diversity of subsequent mental health problems, with posttraumatic stress disorder (PTSD) as the most prevalent disorder. Epidemiologically, trauma exposure rates are more prevalent than PTSD, indicating that most trauma victims do not develop PTSD. More knowledge is needed to understand the development of the different posttraumatic pathways including the significance of pretraumatic, peritraumatic and posttraumatic risk factors. Objective: To study peritraumatic reactions in relation to trauma exposure and symptoms of posttraumatic stress and to enhance our understanding of peritraumatic reactions as mediators between trauma and later symptomatology. Method: The study was composed of a representative community sample of 5332 second year high school students (mean age 17.3 years) who completed the Juvenile Victimization Questionnaire (SAQ/JVQ), Trauma Symptom Checklist for Children (TSCC) and answered questions about peritraumatic reactions. Mediation effects of peritraumatic reactions on the trauma exposure relationship to symptoms was tested using the PROCESS macro for SPSS. Results: Traumatic events are common (84.1%) and are accompanied in three-quarters of the students with at least one form of peritraumatic reaction. Peritraumatic reactions, especially peritraumatic dissociative reactions, mediate the relationship between trauma exposure and symptoms, and gender moderates the effect of peritraumatic dissociation. This moderating effect was found to be larger for boys than for girls, indicating gender differences in response to trauma. Conclusions: The results indicate the need to screen for peritraumatic reactions as early as possible after a traumatic event in order to identify those at risk for PTSD.

The epidemiology of DSM-5 posttraumatic stress disorder in the United States: results from the National Epidemiologic Survey on Alcohol and Related Conditions-III

OBJECTIVES

To present current, nationally representative US findings on the past-year and lifetime prevalences, sociodemographic correlates, psychiatric comorbidity, associated disability, and treatment of DSM-5 posttraumatic stress disorder (PTSD).

METHODS

Face-to-face interviews with 36,309 adults in the 2012-2013 National Epidemiologic Survey on Alcohol and Related Conditions-III. PTSD, alcohol and drug use disorders, and selected mood, anxiety, and personality disorders were assessed using the Alcohol Use Disorder and Associated Disabilities Interview Schedule-5.

RESULTS

Past-year and lifetime prevalences were 4.7 and 6.1 %, higher for female, white, Native American, younger, and previously married respondents, those with <high school education and lower incomes, and rural residents. PTSD was significantly associated with a broad range of substance use, mood, anxiety, and personality disorders, and past-month disability. Among respondents with lifetime PTSD, 59.4 % sought treatment; an average of 4.5 years elapsed from disorder onset to first treatment.

CONCLUSIONS

DSM-5 PTSD is prevalent, highly comorbid, disabling, and associated with delayed help seeking. Additional research is needed to elucidate relationships identified herein, estimate PTSD-related costs, investigate hypotheses regarding etiology, course, and treatment, and support decisions about resource allocation to service delivery and research. Initiatives are needed to destigmatize PTSD, educate the public about its treatment, and encourage affected individuals to seek help.