Posttraumatic stress disorder symptoms and dissociation as serial mediators of the relationship between cumulative victimization and adjustment problems among poly-victimized at-risk youth.

INTRODUCTION: Poly-victimization (PV) has a greater adverse impact on adolescents' lives than any single victimization type, even when repeatedly experienced. Adolescents who experience PV tend to present with an array of adjustment problems, and research has begun to identify mechanisms linking PV to adjustment problems. Both posttraumatic stress disorder (PTSD) and dissociation are linked to PV and adjustment problems; however, it is unclear how these variables play a role in the pathways from PV to adjustment problems. This study assessed PTSD and dissociation as serial mediators in the PV-adjustment problems link. METHOD: Two hundred eighteen Portuguese youth identified as poly-victims (56% girls) and aged between 12 and 17 years old (M = 15.63; SD = 1.26) were recruited from three at-risk contexts' cohorts. Participants completed self-report measures of trauma exposure, posttraumatic symptoms, dissociative symptoms, and emotional and social adjustment problems. RESULTS: The study results suggest that, among poly-victim adolescents, PTSD and dissociation may be mediators of the relationship between the cumulative extent of victimization and adjustment problems. CONCLUSION: The current study's findings highlight the importance of careful assessment of both PTSD and dissociative symptoms and indicate that targeted interventions are essential when working with poly-victimized youth with the highest scores of cumulative victimization. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

The mediating role of posttraumatic stress symptoms on somatization in adolescents: A two-wave longitudinal study.

OBJECTIVE: Trauma as well as adverse childhood experiences (ACEs) have been associated with increased rates of later somatization symptoms. Some evidence has proposed that posttraumatic stress symptoms (PTSS) can mediate this relationship. However, most data come from adult samples. This two-wave longitudinal study aimed to investigate the relationship between cumulative adversity (total amount of adverse and traumatic experiences), PTSS and somatization symptoms in adolescents. METHOD: The sample included 150 adolescents, mean age of 16 years old (M = 15.99, SD = 1.25) with 67 (44.7%) males and 83 (55.3%) females. All were exposed to at least one traumatic event or one childhood adversity. The interval time between the two assessments was about 1 year. RESULTS: The results showed that the PTSS Cluster E, alterations in arousal and reactivity, partially mediated the relationship between cumulative adversity and somatization symptoms (B = .09, BSE = .03, CI [.01, .15]). However, the effect size of the mediation was medium, while the direct effect was large (B = .34, BSE = .08, CI [.18, .50]). CONCLUSIONS: While arousal and reactivity symptoms seem to play a key role in adolescents suffering from somatization symptoms, cumulative adversity have their own direct and strong contribution. Clinicians should consider assessing PTSS and cumulative adversity when caring for adolescents suffering with somatic symptoms to better deliver intervention plans. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

The psychometric properties of the adolescent dissociative experiences scale (A-DES) in a sample of Portuguese at-risk adolescents.

Dissociation is a process that often occurs as a sequela of psychological trauma, and it is interrelated with psychological and behavioral problems. In the at-risk adolescent population, dissociation is often underdiagnosed and undertreated. Having reliable measures to assess this phenomenon can help in identifying adolescents at-risk and improve treatment outcomes. This study assessed the psychometric properties of the Adolescent Dissociative Experiences Scale (A-DES) with a sample of 402 Portuguese adolescents recruited from three at-risk populations. Participants completed self-report measures of trauma exposure, posttraumatic symptoms, psychological and behavioral problems, and the A-DES. A subset of the sample also completed test-retest measures. Confirmatory factor analyses revealed a best-fitting 3-factor model. Analyses revealed good internal consistencies and good agreement test-retest reliability for the scale overall and the factor-based sub-scales. Construct and predictive validity was supported with results showing that A-DES discriminates between youth reporting high versus low levels of cumulative trauma exposure and youth who meet or do not meet criteria for a probable PTSD diagnosis. Study findings replicate prior research supporting a 3-factor model of dissociation and the usefulness of A-DES to identify adolescents with dissociative symptoms. Clinical and research implications are discussed.

Alternative Models of DSM-5 Posttraumatic Stress Disorder in Portuguese Adolescents Exposed to Trauma and Childhood Adversity.

The factor structure of DSM-5 posttraumatic stress disorder (PTSD) has been extensively debated, with evidence supporting the recently proposed seven-factor hybrid model. However, few studies examining PTSD symptom structure have assessed the implications of these proposed models on diagnostic criteria and PTSD prevalence. In the present study, we examined seven alternative DSM-5 PTSD models within a confirmatory factor analysis (CFA), using the Child PTSD Symptom Scale-Self-Report for DSM-5 (CPSS-5). Additionally, we generated prevalence rates for each of the seven models by using a symptom-based diagnostic algorithm and assessed whether substance abuse, depression, anxiety symptoms, and daily functioning were differentially associated with PTSD depending on the model used to derive the diagnosis. Participants were 317 adolescents aged 13-17 years (M = 15.93, SD = 1.23) who had experienced a DSM-5 Criterion A trauma and/or childhood adversity. The CFA results showed good fit indices for all models, with the seven-factor hybrid model presenting the best fit. The rates of PTSD diagnosis varied according to each model. The four-factor DSM-5 model presented the highest rate (30.6%), and the seven-factor hybrid model presented the lowest rate (17.4%). Similar to the CFA analysis, the inclusion criteria for the diagnosis based on the hybrid model also presented the strongest associations with daily functional impairment, odds ratio (OR) = 1.48, 95% CI [1.25, 1.75]; and adverse childhood experiences, OR = 1.46, 95% CI [1.16, 1.82]. Research and clinical implications of these results are discussed, and suggestions for future investigation are presented.

Psychological Distress and Posttraumatic Stress Symptoms: The Role of Maternal Satisfaction, Parenting Stress, and Social Support Among Mothers and Children Exposed to Intimate Partner Violence.

Studies of the effects of intimate partner violence (IPV) on parenting have usually not examined the role of the maternal perceptions, either its stress or maternal satisfaction, on the mothers' and children's mental health functioning. The present study aimed to assess whether maternal satisfaction, parenting stress, and social support are significantly associated with women's psychological functioning. The study also assessed whether maternal perceptions of the role of parenting were significantly associated with children's emotional well-being and social behavior. The sample included 160 mothers, 79 (49.4%) who were living with the aggressors and 81 (50.6%) in shelters, and their children (n = 61). The findings suggested that high levels of maternal satisfaction and perception of social support were significantly negatively associated with women's posttraumatic stress disorder (PTSD) symptoms and psychological distress, whereas parenting stress was significantly positively associated with these outcomes. Maternal satisfaction was the only parenting variable that predicted both maternal mental health and children's emotional and behavioral problems, suggesting that it is a protective factor for both mothers and children. This study suggests that increasing maternal satisfaction with parenting and reducing parenting stress might promote better adjustment for both women and children victims of IPV.

Cortisol awakening response among women exposed to intimate partner violence.

The studies of the effects of intimate partner violence (IPV) on the cortisol awakening response (CAR) are scarce and contradictory. While some of the studies suggested that female victims of IPV showed high CAR, other studies found low CAR. Mixed results may be related to differences in sample characteristics as well as other potential covariates associated with the cortisol, as femalés history of abuse, chronicity, severity and type of IPV, psychological distress, posttraumatic stress disorder, and social support. The study examined individual differences in CAR among 149 female victims of severe IPV reported to authorities, including 76 (51%) living in shelter and 73 (49%) living with the abusive partners. Results revealed several individual differences in CAR that may contribute to understanding the mixed results found in literature, including women with cortisol that decreased between the baseline and 30min later, women with no increase of cortisol, and women whose cortisol increased above baseline. Additionally, women without CAR experienced more chronic and severe violence, more psychological distress and PTSD symptoms. However, hierarchical multiple regression indicated that chronic severe violence was the only independent variable that significantly explained 13% of the variance in CAR, even after including all covariates in the model, and adjusting for sociodemographic variables. In conclusion, this study suggests that the HPA axis dysregulation is influenced by chronic severe violence among women victims of IPV.