Assessing dissociation as a risk factor for posttraumatic stress disorder: a study of adult offspring of holocaust survivors

Post-traumatic Stress Disorder in Prisoners' Offspring: A Systematic Review and Meta-analysis

BACKGROUND

Parental incarceration can produce serious effects on the offspring's mental health. The presence of Post-Traumatic Stress Disorder (PTSD) in prisoners' offspring is understudied and the few literature data showed heterogeneous evidence, with some studies suggesting that about 25% of prisoners' offspring have PTSD and other reporting much lower prevalence rates around 2-3%. There is no systematic review and meta-analysis about PTSD in prisoners' offspring.

OBJECTIVES

The present systematic review and meta-analysis aimed to provide a first quantitative synthesis of the prevalence of the PTSD diagnosis in prisoners' offspring. Moderator variables of the effect sizes were assessed, including offspring's and parents' gender, offspring's generational cohort (children/adolescents versus adults), reasons for parental incarceration (political/war versus crime), and country type (Western versus Non-Western countries).

METHODS

A systematic review and a meta-analysis were conducted according to the PRISMA guidelines. Studies were included if they assessed the presence of a PTSD diagnosis in child, adolescent or adult offspring of prisoners through a diagnostic classification system, a clinician-administered interview or a self-report questionnaire, if they reported data necessary to calculate the effect sizes or the authors were available to provide them. Studies might have been based upon any design except review, single-case, case series, and case reports. Outcomes might have been measured at any time after parental incarceration. Parental imprisonment was defined as any kind of custodial confinement of a parent by the criminal justice system, including being held as a prisoner of war or for political reasons.Independent reviewers searched published/unpublished studies through electronic databases and additional sources and extracted the data. A random-effect meta-analysis was carried out by calculating the effect sizes as event rates. Heterogeneity was examined by the I² and the Q statistics. Moderators were assessed through meta-regressions.

RESULTS

Six studies (2512 participants) were included. Fifteen percent of prisoners' offspring had PTSD, as shown by a significant mean effect size of 0.14 without evidence of publication bias (95% CI: 0.081 - 0.249, p< 0.001). There were no significant differences on the mean effect sizes between the studies on adults and those on children/adolescents [Q₍₁₎ = 0.00, p = .999], between the studies on parents incarcerated for political/war reasons and those for crime [Q₍₁₎ = 0.00, p = .979], and between the studies conducted in Western and non-Western countries [Q₍₁₎ = 0.854, p = .355]. While offspring's gender was not related to the effect sizes [β = -0.01, 95% CI: -0.02 - 0.02, p = .452], parents' gender was significantly and positively associated with the effect sizes suggesting that in studies with higher percentages of incarcerated mothers, the prevalence of offspring's PTSD was higher [β = 0.01, 95% CI: 0.0 - 0.01, p = .019].

CONCLUSION

PTSD is a serious mental health condition among prisoners' offspring, particularly when mothers are incarcerated. The present findings point out the importance of thorough assessment and timely intervention/prevention strategies implemented by professionals of mental health settings and detention systems. The cross-sectional design of the studies does not allow causal conclusions to be drawn about the effect of parental incarceration as a risk factor for PTSD. Other variables related to parental incarceration may explain these findings. This limitation points out the importance of further longitudinal research.

Intergenerational consequences of the Holocaust on offspring mental health: a systematic review of associated factors and mechanisms

Exposure to war and violence has major consequences for society at large, detrimental impact on people's individual lives, and may also have intergenerational consequences. To gain more insight into these intergenerational consequences, research addressing the impact of the Holocaust on offspring is an important source of information. The aim of the current study was to systematically review the mechanisms of intergenerational consequences by summarizing characteristics in Holocaust survivors and their offspring suggested to impact the offspring's mental health. We focused on: 1) parental mental health problems, 2) (perceived) parenting and attachment quality, 3) family structure, especially parental Holocaust history, 4) additional stress and life events, and 5) psychophysiological processes of transmission. We identified 23 eligible studies published between 2000 and 2018. Only Holocaust survivor studies met the inclusion criteria. Various parent and child characteristics and their interaction were found to contribute to the development of psychological symptoms and biological and epigenetic variations. Parental mental health problems, perceived parenting, attachment quality, and parental gender appeared to be influential for the mental well-being of their offspring. In addition, having two survivor parents resulted in higher mental health problems compared to having one survivor parent. Also, there was evidence suggesting that Holocaust survivor offspring show a heightened vulnerability for stress, although this was only evident in the face of actual danger. Finally, the results also indicate intergenerational effects on offspring cortisol levels. Clinical and treatment implications are discussed.

Offspring psychological and biological correlates of parental posttraumatic stress: review of the literature and research agenda

Millions of individuals with posttraumatic stress disorder (PTSD) are parents. A burgeoning literature suggests that offspring of parents with this condition may be at increased risk for psychological problems. The current paper provides an integrative and comprehensive review of the diverse research literature examining the sequelae of parental posttraumatic stress among offspring. Over 100 studies that evaluated psychological and/or biological variables among children of parents with PTSD are reviewed. Findings suggest parental symptoms of posttraumatic stress are uniquely related to an array of offspring outcomes, including internalizing-type problems, general behavioral problems, and altered hypothalamic-pituitary-adrenal axis functioning. Although very little work has directly evaluated mechanisms of transmission, there is increasing support for genetic and epigenetic effects as well as parenting behaviors. These and other mechanisms are discussed; drawing upon findings from other literatures to consider how parental PTSD may impart psychobiological vulnerability upon offspring. We conclude with a detailed discussion of the methodological strengths and challenges of the extant research, along with a recommended agenda for future research in this important area of study.

Trait dissociation predicts posttraumatic stress disorder symptoms in a prospective study of urban police officers

The current study prospectively examines the predictive relationship of trait dissociation, assessed during academy training, to PTSD symptoms assessed at 12 months of active police duty in relatively young and healthy police academy recruits (N = 180). The roles of pre-academy trauma exposure, exposure to life-threatening critical incidents during police duty, and peritraumatic dissociation at the time of the officer's worst critical incident were also examined. Utilizing path analytic techniques, greater trait dissociation, assessed during academy training, was predictive of both peritraumatic dissociation, and PTSD symptoms assessed at 12 months of police service. Moreover, after accounting for trait dissociation and peritraumatic dissociation, the relationship of previous trauma to later PTSD symptoms was no longer significant, demonstrating that the effect of previous trauma on later vulnerability to PTSD symptoms in this sample may be mediated by both trait and peritraumatic dissociation.

Effect of Dissociative Experiences on Drug Treatment of Panic Disorder

BACKGROUND AND OBJECTIVE

Dissociative experiences are widespread among patients with panic disorder and have a negative impact on cognitive-behavioural therapy. In this study we aimed to investigate whether or not dissociative experiences affect response to drug treatment for panic disorder.

METHODS

Thirty-five patients, 20 women and 15 men, with a mean age of 35.4 years and a diagnosis of panic disorder, were enrolled in the study. Paroxetine 20 mg/day was administered over 6 weeks. Patients were assessed on the Dissociative Experience Scale (DES) and Panic and Agoraphobia Scale (PAS) at the commencement of therapy, and on the PAS again after therapy.

RESULTS

The average DES score was determined as 30.3. Agoraphobia was identified in 34.3% of patients. DES scores were higher in patients with agoraphobia than in those without agoraphobia. Agoraphobia scores were higher in patients with high DES scores. When patients were divided into those with low DES scores (< or =30) and those with high DES scores (>30), a decrease in PAS scores with treatment was observed in both groups, but the decrease was greater in those with low DES scores (18.8 +/- 6.8 vs 5.7 +/- 5.7 in the high-DES score group; Z = 4.486, p = 0.00000053). Similarly, while a decrease in PAS scores with treatment was observed both in patients with agoraphobia (p < 0.05) and in those without agoraphobia, PAS scores decreased more in non-agoraphobic patients (16.7 +/- 7.5 vs 4.8 +/- 6.6 in patients with agoraphobia; Z = 3.799, p = 0.000047). In addition, the decrease in PAS scores was significantly correlated with baseline DES score (beta = 0.706, T = 5.727, p = 0.0000022).

CONCLUSION

This study shows that dissociative experiences reduce the response to drug therapy in patients with panic disorder.

Longitudinal study of acute stress disorder, posttraumatic stress disorder and dissociation following myocardial infarction

Since dissociation has been recognized as a marker of posttraumatic processes, this study examines the chronological relations between dissociation and stress reactions (acute stress disorder, ASD, and posttraumatic stress disorder, PTSD) following myocardial infarction (MI). One hundred sixteen MI patients were examined twice: within 1 week of the trauma (time 1) and 7 months later (time 2). Sixty-seven matched controls were studied in a parallel interval. ASD was assessed at time 1, PTSD at time 2, and dissociative tendencies at both times. ASD and PTSD were moderately associated with levels of dissociation. In addition, while the MI patients did not differ from the controls in level of dissociation, both in time 1 and time 2, among the MI group, PTSD was associated with an increase in dissociation. These findings may reflect either the development of two comorbid entities, or a presentation of a dissociative subtype of PTSD.

Holocaust exposure and disordered eating: a study of multi-generational transmission

OBJECTIVE

To test the hypothesis that disordered eating in second- and third-generation women would be related to their levels of Holocaust exposure and family dysfunction.

METHOD

One hundred eight mother-daughter dyads were ascertained through the daughters, all Israeli college students 18-35 years of age. Mothers and daughters assessed themselves on family function, Holocaust exposure and disordered eating.

RESULTS

The disordered eating of women of the third generation was partially predicted by their mothers' disordered eating and by their mothers' Holocaust exposure. The second generation reported more maternal over-protection and emotional over-involvement than did the third generation. Contrary to expectation, the third-generation women were more Holocaust exposed than were the second generation.

DISCUSSION

The nature of Holocaust exposure for second and third generations needs further study and clarification in relation to disordered eating. There is considerable disparity between the results of clinical and qualitative studies which tend to find a strong relationship between Holocaust exposure and psychopathology, and population-based quantitative studies which tend to find a much weaker relationship.