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Previous studies have reported inconsistent findings regarding the association between post-traumatic stress (PTS) and post-traumatic growth (PTG). Three major issues could account for this inconsistency: (1) the lack of information about mental health problems before the disaster, (2) the concept of PTG is still under scrutiny for potentially being an illusionary perception of personal growth and (3) the overlooking of PTS comorbidities as time-dependent confounding factors. To address these issues, we explored the associations of PTS and PTG with trauma-related diseases and examined the association between PTS and PTG using marginal structural models to address time-dependent confounding, considering pre-disaster covariates, among older survivors of the 2011 Japan Earthquake and Tsunami.
Methods
Seven months before the disaster, the baseline survey was implemented to ask older adults about their health in a city located 80 km west of the epicentre. After the disaster, we implemented follow-up surveys approximately every 3 years to collect information about PTS and comorbidities (depressive symptoms, smoking and drinking). We asked respondents about their PTG in the 2022 survey (n = 1,489 in the five-wave panel data).
Results
PTG was protectively associated with functional disability (coefficient −0.47, 95% confidence interval (CI) −0.82, −0.12, P < 0.01) and cognitive decline assessed by trained investigators (coefficient −0.07, 95% CI −0.11, −0.03, P < 0.01) and physicians (coefficient −0.06, 95% CI −0.11, −0.02, P < 0.01), while PTS was not significantly associated with them. Severely affected PTS (binary variable) was associated with higher PTG scores, even after adjusting for depressive symptoms, smoking and drinking as time-dependent confounders (coefficient 0.35, 95% CI 0.24, 0.46, P < 0.01). We also found that an ordinal variable of the PTS score had an inverse U-shaped association with PTG.
Conclusion
PTG and PTS were differentially associated with functional and cognitive disabilities. Thus, PTG might not simply be a cognitive bias among survivors with severe PTS. The results also indicated that the number of symptoms in PTS had an inverse U-shaped association with PTG. Our findings provided robust support for the theory of PTG, suggesting that moderate levels of psychological struggles (i.e., PTS) are essential for achieving PTG, whereas intense PTS may hinder the attainment of PTG. From a clinical perspective, interventions that encourage social support could be beneficial in achieving PTG by facilitating deliberate rumination.
Edited by
Allan Young, Institute of Psychiatry, King's College London,Marsal Sanches, Baylor College of Medicine, Texas,Jair C. Soares, McGovern Medical School, The University of Texas,Mario Juruena, King's College London
This chapter outlines the current research on the stress response and how chronic stress can lead to the dysfunction of neuroendocrine and immune responses and ultimately contribute to the development of psychiatric disorders. The chapter aims to provide an understanding of the pathways involved in the stress response, in particular the HPA axis and the role of cortisol, exploring the role of HPA hyperactivity as a contributor to major depressive disorder. The chapter reviews the impact of the stress response in bipolar and post-traumatic stress disorder, concluding with a summary of our current understanding of the interplay of mood disorders with early life stress.
Many of us have been affected by trauma and struggle to manage our health and well-being. The social psychological approach to health highlights how social and cultural forces, as much as individual ones, are central to how we experience and cope with adversity. This book integrates psychology, politics, and medicine to offer a new understanding that speaks to the causes and consequences of traumatic experiences. Connecting the personal with the political, Muldoon details the evidence that traumatic experiences can, under certain conditions, impact people's political positions and appetite for social change. This perspective reveals trauma as a socially situated phenomenon linked to power and privilege or disempowerment and disadvantage. The discussion will interest those affected by trauma and those supporting them, as well as students, researchers, practitioners, and policy makers in social psychology, health and clinical psychology, and political science. This title is available as open access on Cambridge Core.
Post-traumatic stress symptoms (PTSS) were the most frequently reported mental health concern for youth during COVID-19, yet variations in youth's PTSS responses warrant empirical consideration. Features of the caregiving environment influence youth's responses to environmental stressors, and youth's parasympathetic nervous system regulation may qualify the magnitude and/or direction of these effects. This prospective investigation evaluated diathesis stress and differential susceptibility models of caregiving and parasympathetic influences on youth's PTSS responses to COVID-19.
Method
Participants were 225 caregiver-youth dyads (youth 49.8% female at birth; 88.4% non-white) followed from childhood through adolescence and COVID-19. Youth's resting respiratory sinus arrhythmia (RSA; Mage = 6.11, s.d. = 0.21), caregiving features (i.e. attachment security [youth Mage = 12.24, s.d. = 0.35] and caregiver internalizing psychopathology [caregiver Mage = 39.29, s.d. = 6.78]) were assessed pre-pandemic. Youth's PTSS was assessed one year prior to the US COVID-19 pandemic (Mage = 14.24, s.d. = 0.50) and during the spring of 2020 at the height of the pandemic (Mage = 15.23, s.d. = 0.57).
Results
Youth's PTSS increased during COVID-19. Youth with relatively high resting RSA evidenced the lowest PTSS when their caregiving environment featured high attachment security or low caregiver internalizing problems, but the highest PTSS when their caregiving environment featured low attachment security or high caregiver internalizing problems. In contrast, PTSS levels of youth with relatively low or average resting RSA did not differ significantly depending on attachment security or caregiver internalizing.
Conclusions
Results are consistent with a differential susceptibility hypothesis, wherein relatively high resting RSA conferred heightened sensitivity to caregiving environments in a for-better-and-for-worse manner during COVID-19.
Our aim was to examine mental health needs and access to mental healthcare services among Syrian refugees in the city of Leipzig, Germany. We conducted a cross-sectional survey with Syrian refugee adults in Leipzig, Germany in 2021/2022. Outcomes included PTSD (PCL-5), depression (PHQ-9), anxiety (GAD-7) and somatic symptom (SSS-8). Descriptive, regression and effect modification analyses assessed associations between selected predictor variables and mental health service access. The sampling strategy means findings are applicable only to Syrian refugees in Leipzig. Of the 513 respondents, 18.3% had moderate/severe anxiety symptoms, 28.7% had moderate/severe depression symptoms, and 25.3% had PTSD symptoms. A total of 52.8% reported past year mental health problems, and 48.9% of those participants sought care for these problems. The most common reasons for not accessing mental healthcare services were wanting to handle the problem themselves and uncertainty about where to access services. Adjusted Poisson regression models (n = 259) found significant associations between current mental health symptoms and mental healthcare service access (RR: 1.47, 95% CI: 1.02–2.15, p = 0.041) but significance levels were not reached between somatization and trust in physicians with mental healthcare service access. Syrian refugees in Leipzig likely experience high unmet mental health needs. Community-based interventions for refugee mental health and de-stigmatization activities are needed to address these unmet needs in Leipzig.
This chapter from Graphic discusses humans’ biological and psychological responses to viewing the suffering of others, including through graphic videos and photographs found online. The authors discuss the sometimes-negative effects of such images on human rights workers and journalists – including the risk of secondary or vicarious trauma – referencing the most recent research as to what happens in the body when people view and process upsetting images.
The COVID pandemic had a heavy impact on the mental health of people in general and healthcare professionals in particular.
Objectives
Our study aimed to examine the the prevalence of post-traumatic stress symptoms among healthcare professionals working in COVID departments, and assess their professional quality of life.
Methods
Our sample consisted of 23 healthcare professionals who are working in the COVID departments of the Hospitals of Sfax. We collected their sociodemographic data, their medical history and COVID-related details. Their mental health was assessed by the Impact of Event scale (IES-R) and the professional quality of life scale (ProQOL-5)
Results
The sex ratio in our study was 17:6, with a mean age of 31.79 years. They carried out 5.43 nightshifts per month, 57 hours of work per week including 27.38 hours of direct contact with COVID positive patients. A rate of 21.74% of the patients had a high IES-R score, indicating severe post traumatic stress symptoms. As for the subscales of the professional quality of life score, 21.73% of the participants had a low compassion satisfaction score, 65.21% of the participants had a moderate one and 13% had a high one. A rate of 91.3% of the participants had a moderate burnout score, the mean was 29.39. The secondary traumatization score was low in 26% of the cases, moderate in 60.86%, high in 13% and the mean was 27.91.
Conclusions
COVID healthcare professionals are at a relatively high risk of developing burnout and post-traumatic stress symptoms.
Over the last decade, there has been identified that critical illness survivors have high rates of psychiatric disorders such as posttraumatic stress disorder (PTSD). The experience of admission to intensive care units (ICU) and illusory memories may cause short and long-term psychological disorders.
Objectives
To evaluate psychiatric disorders, such as PTSD, after ICU discharge, and determine the prevalence, risk factors, and prevention strategies for PTSD in these patients.
Methods
Non-systematic review through research in PubMed. Addicionally, a case report will be exposed, after the patient was diagnosed with SARS‑CoV‑2 and stayed in ICU for more than 30 days.
Results
The development of PTSD has been related to the number of adverse memories patients recall from their ICU experience. Some studies have shown that approximately 47% of patients remember real facts and 34% have illusory memories relative to their stays in the ICU. There were identified some risk factor associated to the increased risk of post-ICU PTSD, such as early post-ICU memories or psychotic experiences, pre-ICU psychopathology, benzodiazepine sedation during ICU and substantial acute stress symptoms occurring < 1 month after exposure to a traumatic stressor.
Conclusions
High levels of anxiety and the development by patients of PTSD are being recognized as significant problems occurring after a stay in an ICU. The results of this study highlight the need to recognise the risk factors and to establish a early follow-up after ICU stay. This way is possible to identify patients who are at risk of developing acute PTSD-related symptoms, and early intervention can be institued.
The aims of this study were: (a) to examine associations of oxytocin receptor gene (OXTR) single nucleotide polymorphisms (SNPs) with post-traumatic stress disorder (PTSD) and dissociative symptoms and (b) to investigate gene–environment (G × E) interaction with childhood maltreatment. Salivary DNA samples from 228 women of European ancestry were analysed. Two SNPs, rs237895 and rs237897, were associated with dissociative symptoms but not PTSD diagnosis. Another SNP (rs2254298) was associated with dissociation when interacting with history of childhood maltreatment. These results contribute to theorising and evidence suggesting that the oxytocin system and its genetics may be associated with risk for dissociation among European American women, including those with maltreatment history. Replication with larger patient samples, including men and other ancestry groups, is needed.
Prevalence of post-traumatic stress disorder (PTSD) is high in Pakistan both due to natural disasters and ongoing conflicts. Offspring of trauma survivors are at increased risk for mental and physical illnesses. Parental PTSD has been linked to troubled parent–child relationships, behaviour problems, trauma symptoms, and depression in children. This study aims to explore the acceptability, feasibility and indications of the effectiveness of group learning through play plus trauma-focused cognitive behaviour therapy (LTP Plus TF-CBT) for parents experiencing PTSD.
Methods/Design
This is a two-arm pilot cluster randomised controlled trial (RCT). We aim to recruit 300 parents with a diagnosis of PTSD. The screening will be done using the Impact of Event Scale-Revised. Diagnosis of PTSD will be confirmed using the Clinician-Administered PTSD Scale-5 (CAPS-5). Union Councils from Peshawar and Karachi will be randomised into either group LTP Plus TF CBT arm or treatment as usual (TAU). The intervention includes 12 sessions of LTP Plus TF-CBT delivered weekly in the first 2 months and then fortnightly in a group setting by trained psychologists. The groups will be co-facilitated by the community health workers (CHWs). Parents will be assessed at baseline and 4th month (end of the intervention), using the Patient Health Questionnaire (PHQ-9), Generalised Anxiety Disorder (GAD-7) Scale, Client Service Receipt Inventory (CSRI), and Ages and Stages Questionnaire (ASQ-3)
Discussion
This trial would help build an understanding of the acceptability, feasibility and indications of the effectiveness of a low-cost parenting intervention.
Although there is strong evidence supporting the association between childhood adversity and symptomatology during adolescence, the extent to which adolescents present with distinct patterns of co-occurring post-traumatic stress (PTS) and externalizing symptoms remains unclear. Additionally, prior research suggests that experiencing nonviolent, negative life events may be more salient risk factors for developing some forms of psychopathology than exposure to violence. The current study used latent profile analysis to identify subgroups of early adolescents with distinct patterns of PTS, physical aggression, delinquency, and substance use, and examined subgroup differences in exposure to three forms of violent and nonviolent childhood adversity. Participants were a predominantly low-income, African American sample of 2,722 urban middle school students (M age = 12.9, 51% female). We identified four symptom profiles: low symptoms (83%), some externalizing (8%), high PTS (6%), and co-occurring PTS and externalizing symptoms (3%). A higher frequency of witnessing violence was associated with increased odds of membership in subgroups with externalizing symptoms, whereas a higher frequency of nonviolent, negative life events was associated with increased odds of membership in subgroups with PTS symptoms. Interventions aimed to address childhood adversity may be most effective when modules addressing both PTS and externalizing symptoms are incorporated.
Exposure to trauma is common and can have a profoundly negative impact on mental health. Interventions based on trauma-focused cognitive behavioural therapy have shown promising results to facilitate recovery. The current trial evaluated whether a novel, scalable and digital early version of the intervention, Condensed Internet-Delivered Prolonged Exposure (CIPE), is effective in reducing post-traumatic stress symptoms.
Method
A single-site randomised controlled trial with self-referred adults (N = 102) exposed to trauma within the last 2 months. The participants were randomised to 3 weeks of CIPE or a waiting list (WL) for 7 weeks. Assessments were conducted at baseline, week 1–3 (primary endpoint), week 4–7 (secondary endpoint) and at 6-month follow-up. The primary outcome measure was PTSD Checklist for DSM-5 (PCL-5).
Results
The main analysis according to the intention-to-treat principle indicated statistically significant reductions in symptoms of post-traumatic stress in the CIPE group as compared to the WL group. The between-group effect size was moderate at week 3 (bootstrapped d = 0.70; 95% CI 0.33–1.06) and large at week 7 (bootstrapped d = 0.83; 95% CI 0.46–1.19). Results in the intervention group were maintained at the 6-month follow-up. No severe adverse events were found.
Conclusions
CIPE is a scalable intervention that may confer early benefits on post-traumatic stress symptoms in survivors of trauma. The next step is to compare this intervention to an active control group and also investigate its effects when implemented in regular care.
To examine relationships amongst parental post-traumatic stress symptoms, parental post-traumatic growth, overprotective parenting, and child emotional/behavioural problems in families of children with critical CHD.
Method:
Sixty parents (15 fathers) of children aged 1–6 completed online questionnaires assessing parental post-traumatic stress symptoms and post-traumatic growth, overprotective parenting, and child emotional/behavioural problems. Bivariate correlations and mediational analyses were conducted to evaluate overprotective parenting as a mediator of the association between parental post-traumatic stress symptoms and child emotional/behavioural problems.
Results:
Parents reported significant post-traumatic stress symptoms, with over 18% meeting criteria for post–traumatic stress disorder and 70% meeting criteria in one or more clusters. Parental post-traumatic growth was positively correlated with intrusion (r = .32, p = .01) but it was not associated with other post-traumatic stress symptom clusters. Parental post-traumatic stress symptoms were positively associated with overprotective parenting (r = .37, p = .008) and total child emotional/behavioural problems (r = .29, p = .037). Overprotective parenting was positively associated with total child emotional/behavioural problems (r = .45, p = .001) and fully mediated the relationship between parental post-traumatic stress symptoms and child emotional/behavioural problems.
Conclusion:
Overprotective parenting mediates the relationship between parental post-traumatic stress symptoms and child emotional and behavioural problems in families of children with CHD. Both parental post-traumatic stress symptoms and overprotective parenting may be modifiable risk factors for poor child outcomes. This study highlights the need for interventions to prevent or reduce parental post-traumatic stress symptoms and to promote effective parenting following a diagnosis of CHD.
Expressive writing requires journaling stressor-related thoughts and feelings over four daily sessions of 15 min. Thirty years of research have popularized expressive writing as a brief intervention for fostering trauma-related resilience; however, its ability to surpass placebo remains unclear. This study aimed to determine the efficacy of expressive writing for improving post-traumatic stress symptoms in perinatal women who were living in the Houston area during major flooding caused by Hurricane Harvey.
Methods
A total of 1090 women were randomly allocated (1:1:1) to expressive writing, neutral writing or no writing. Interventions were internet-based. Online questionnaires were completed before randomization and at 2 months post-intervention. The primary outcome was post-traumatic stress symptoms, measured with the Impact of Event Scale-Revised; secondary outcomes were affective symptoms, measured with the 40-item Inventory of Depression and Anxiety Scales. Feelings throughout the intervention were reported daily using tailored questionnaires.
Results
In intention-to-treat analyses, no post-treatment between-group differences were found on the primary and secondary outcomes. Per-protocol analyses yielded similar results. A number of putative moderators were tested, but none interacted with expressive writing. Expressive writing produced greater feelings of anxiety and sadness during the intervention compared to neutral writing; further, overall experiences from the intervention mediated associations between expressive writing and greater post-traumatic stress at 2 months post-intervention.
Conclusions
Among disaster-stricken perinatal women, expressive writing was ineffective in reducing levels of post-traumatic stress, and may have exacerbated these symptoms in some.
SARS-CoV-2 has rapidly spread worldwide, threatening public health and financial and social life.
Aims
The current study's aim was to determine the prevalence of psychological distress and post-traumatic stress symptoms in the Greek population during the first COVID-19 lockdown, and to detect potential correlates.
Method
An anonymous online survey was conducted between 10 April and 4 May 2020, to collect information regarding people's psychological functioning and COVID-19-related perceptions.
Results
A total of 1443 individuals completed the survey; 293 (20%) reported clinically significant anxiety symptoms, 188 (12.9%) reported clinically significant depressive symptoms and 506 (36.4%) suffered from definite post-traumatic stress disorder. Anxiety symptoms were independently associated with female gender (β = 1.281, 95% CI 0.808–1.755, P < 0.001), educational level (β = −1.570, 95% CI −2.546 to −0.595, P = 0.002), perceived severity (β = −1.745, 95% CI −3.146 to −0.344, P = 0.015) and COVID-19-related worry (β = 7.633, 95% CI 6.206–9.060, P < 0.001). Depressive symptoms were strongly correlated with educational level (β = −1.298, 95% CI −2.220 to −0.377, P = 0.006), perceived severity (β = −1.331, 95% CI −2.579 to −0.082, P = 0.037) and COVID-19-related worry (β = 4.102, 95% CI 2.769–5.436, P < 0.001). Finally, post-traumatic stress symptoms were linked to female gender (β = 6.451, 95% CI 4.602–8.299, P < 0.001), educational level (β = −5.737, 95% CI −9.479 to −1.996, P = 0.003), psychiatric history (β = −4.028, 95% CI −6.274 to −1.782, P < 0.001) and COVID-19-related worry (β = 23.865, 95% CI 18.201–29.530, P < 0.001).
Conclusions
A significant percentage of the population reported clinically important anxiety, depressive and post-traumatic stress symptoms. Women, less-educated individuals and people with a psychiatric history appeared more vulnerable to the pandemic's psychological impact.
Early Identification of disaster victims with mental health problems may be useful, but information within a short period after a disaster is scarce in developing countries. This study examined anxiety, depression, and post-traumatic stress symptoms at 1 month following 2019 Cyclone Fani in Odisha, India.
Method:
Post-traumatic stress symptoms (PTSS) were assessed by the Primary care PTSD screen for DSM 5 (PC-PTSD-5), anxiety symptoms by the Generalised Anxiety Disorder (GAD-7), and depression by the Patient Health Questionnaire (PHQ-9). The survey included participants’ disaster experience e.g., evacuation, fear of death, injury, death in family, damage to house, difficulty for food, displacement, and effect on livelihood.
Results:
Proportion of sample (n = 80) with probable PTSD was 42.9%, with severe anxiety was 36.7%, moderately severe depression was 16.5%, and severe depression was 3.8%. Suicidal cognitions were reported to increase by 14%. Comorbidity was common; with significant (P < 0.01) correlation between PTSS and anxiety (r = 0.69), depression (r = 0.596), and between anxiety and depression (r = 0.63). Damage of house and displacement were associated significantly with PTSD; evacuation and displacement with moderate and severe depression; and displacement with severe anxiety. No specific demographic factors were significantly linked to the psychiatric morbidities.
Conclusion:
A considerable proportion of victims had psychiatric morbidities at 1 month. Associated risk factors included housing damages, evacuation, and displacement, suggesting the need to improve the disaster-management process.
Healthcare workers exposed to coronavirus 2019 (COVID-19) patients could be psychologically distressed. This study aims to assess the magnitude of psychological distress and associated factors among hospital staff during the COVID-19 pandemic in a large tertiary hospital located in north-east Italy.
Methods
All healthcare and administrative staff working in the Verona University Hospital (Veneto, Italy) during the COVID-19 pandemic were asked to complete a web-based survey from 21 April to 6 May 2020. Symptoms of post-traumatic distress, anxiety and depression were assessed, respectively, using the Impact of Event Scale (IES-R), the Self-rating Anxiety Scale (SAS) and the Patient Health Questionnaire (PHQ-9). Personal socio-demographic information and job characteristics were also collected, including gender, age, living condition, having pre-existing psychological problems, occupation, length of working experience, hospital unit (ICUs and sub-intensive COVID-19 units vs. non-COVID-19 units). A multivariable logistic regression analysis was performed to identify factors associated with each of the three mental health outcomes.
Results
A total of 2195 healthcare workers (36.9% of the overall hospital staff) participated in the study. Of the participants, 35.7% were nurses, 24.3% other healthcare staff, 16.4% residents, 13.9% physicians and 9.7% administrative staff. Nine per cent of healthcare staff worked in ICUs, 8% in sub-intensive COVID-19 units and 7.6% in other front-line services, while the remaining staff worked in hospital units not directly engaged with COVID-19 patients. Overall, 63.2% of participants reported COVID-related traumatic experiences at work and 53.8% (95% CI 51.0%–56.6%) showed symptoms of post-traumatic distress; moreover, 50.1% (95% CI 47.9%–52.3%) showed symptoms of clinically relevant anxiety and 26.6% (95% CI 24.7%–28.5%) symptoms of at least moderate depression. Multivariable logistic regressions showed that women, nurses, healthcare workers directly engaged with COVID-19 patients and those with pre-existing psychological problems were at increased risk of psychopathological consequences of the pandemic.
Conclusions
The psychological impact of the COVID-19 pandemic on healthcare staff working in a highly burdened geographical of north-east Italy is relevant and to some extent greater than that reported in China. The study provides solid grounds to elaborate and implement interventions pertaining to psychology and occupational health.
High rates of post-traumatic stress disorder (PTSD) are documented within refugee populations. Although research supports effectiveness of trauma-focused cognitive behaviour therapy (TF-CBT) among Western populations, little research exists for its efficacy among refugees living in camps and settlements in developing nations.
Aims:
To investigate whether a culturally sensitive, group-based TF-CBT programme (EMPOWER) delivered in a Ugandan refugee settlement effectively reduced refugees’ post-traumatic stress symptoms (PTSS), and whether sociodemographic factors, trauma characteristics, or PTSS severity related to programme completion or treatment outcomes.
Method and Results:
Data linkages were conducted on information provided by 174 Congolese refugees living in a Ugandan settlement (mean age = 33.4 years, SD = 11.7; 49% male). Using a quasi-experimental design, participants who initially completed the intervention (n = 43) delivered across nine 90-minute sessions, reported significant reductions in self-reported PTSS with a large effect size. The delayed treatment group (n = 55) also reported significant treatment gains once they received the intervention. Participants who completed the programme reported significantly greater initial PTSS severity than those who dropped out, while no sociodemographic factors, trauma characteristics or PTSS were associated with better treatment outcomes.
Discussion:
A culturally sensitive, group-based TF-CBT programme delivered in a refugee settlement meaningfully reduces refugees’ PTSS severity and is equally effective for all participants, with the highest retention rates found among those in greatest need of treatment. Programmes such as this, with capacity to treat hundreds of people simultaneously, represent highly cost-effective, accessible, disseminable and effective treatment for PTSS among refugees living in humanitarian settings in developing nations.
Seeking compensation has been shown to have an adverse effect on the psychological health and recovery of injured patients, however, this effect requires clarification.
Methods
A total of 2019 adults sustaining a traffic injury were recruited. Of these, 709 (35.1%) lodged a compensation claim. Interviews occurred at 1-, 6- and 12-month post-injury. Outcomes were psychological distress (posttraumatic stress (PTS) and depressive symptoms) and health-related functioning (HrF) (quality of life measured by EQ-5D-3L and disability by WHODAS) over 12-months post-injury. Covariates included individual stress vulnerability (preinjury, injury-related factors).
Results
Compared with non-compensation participants, compensation groups had higher stress vulnerability (more severe injuries and negative reactions) and poorer baseline outcomes (psychological health and HrF). After adjustment, we found an effect of compensation on HrF [β-0.09 (−0.11 to −0.07), p < 0.001] and PTS [β = 0.36 (0.16 to 0.56), p = 0.0003], but not on depression [β = −0.07 (−0.42 to 0.28), p = 0.7]. Both groups improved over time. Vulnerable individuals (β = 1.23, p < 0.001) and those with poorer baseline outcomes (PTS: β = 0.06, p = 0.002; HrF: β = −1.07, p < 0.001) were more likely to lodge a claim. In turn, higher stress vulnerability, poor baseline outcomes and claiming compensation were associated with long-term psychological distress and HrF. Nevertheless, concurrent HrF in the model fully accounted for the compensation effect on psychological distress (β = −0.14, p = 0.27), but not vice versa.
Conclusions
This study provides convincing evidence that seeking compensation is not necessarily harmful to psychological health. The person's stress vulnerability and injury-related disability emerge as major risk factors of long-term psychological distress, requiring a whole-systems approach to address the problem.
Understanding the interplay between trauma-related psychological mechanisms and psychotic symptoms may improve the effectiveness of interventions for post-traumatic stress reactions in psychosis. Network theory assumes that mental health problems persist not because of a common latent variable, but from dynamic feedback loops between symptoms, thereby addressing the heterogeneous and overlapping nature of traumagenic and psychotic diagnoses. This is a proof-of-concept study examining interactions between post-traumatic stress symptoms, which were hypothesized to reflect trauma-related psychological mechanisms, and auditory hallucinations and delusions.
Method
Baseline data from two randomised controlled trials (N = 216) of trauma-focused therapy in people with post-traumatic stress symptoms (87.5% met diagnostic criteria for PTSD) and psychotic disorder were analysed. Reexperiencing, hyperarousal, avoidance, trauma-related beliefs, auditory hallucinations and delusional beliefs were used to estimate a Gaussian graphical model along with expected node influence and predictability (proportion of explained variance).
Results
Trauma-related beliefs had the largest direct influence on the network and, together with hypervigilance, were implicated in the shortest paths from flashbacks to delusions and auditory hallucinations.
Conclusions
These findings are in contrast to previous research suggesting a central role for re-experiencing, emotional numbing and interpersonal avoidance in psychosis. Trauma-related beliefs were the psychological mechanism most associated with psychotic symptoms, although not all relevant mechanisms were measured. This work demonstrates that investigating multiple putative mediators may clarify which processes are most relevant to trauma-related psychosis. Further research should use network modelling to investigate how the spectrum of traumatic stress reactions play a role in psychotic symptoms.