A cross-sectional study among survivors of the 2008 Sichuan earthquake: prevalence and risk factors of posttraumatic stress disorder

Impact of Natural Disasters on Mental Health: Evidence and Implications

Natural disasters are large-scale catastrophic events, and they are increasing in frequency and severity. Converging evidence indicates that the mental health consequences of disasters are extensive and are often associated with trauma and the disruption of personal and socioeconomic factors in people's lives. Although most individuals experiencing disaster-related traumatic events do not develop mental illnesses, some experience adverse psychological effects of disasters. These mental health effects begin immediately following a disaster and may persist for extended periods. In this article, we summarize the literature findings to provide a narrative review that focuses on the mental health consequences of natural disasters. An overview of the disaster mental health research field is provided, and the findings are ordered into theoretical frameworks. Then, the development and course of psychopathology regarding disaster aftermath are described in a methodological context. Next, understanding a disaster as an event of transition is highlighted, and the impact of this disaster-specific transition is discussed. Lastly, a potential relationship between the transitional impact of a disaster and mental health consequences is speculated on, and the implications are discussed. The impact of disasters on mental health can be direct or indirect, short-term or long-term, and to some extent depends on the recovery process of the affected community. Also, we propose the possible merits of using the Transitional Impact Scale in the context of disaster mental health research by assessing the features of disaster-related transition and its effects on mental health. We conclude by suggesting a direction for future research in terms of measuring the disaster mental health effects in community settings (affected vs. non-affected) and also considering cross-cultural and cross-regional differences. In recent decades, a large amount of knowledge has been gathered from disaster mental health research, but, still, more research is needed to resolve some irregular findings through refining the methodological variations.

Trajectories and comorbid symptom networks of posttraumatic stress symptoms in frontline rescuers: A longitudinal study

BACKGROUND

Previous research has largely lacked studies that explore the trajectories of Posttraumatic stress symptoms (PTSS) and the structure of comorbid psychiatric symptom networks following traumatic event, while controlling for the severity of traumatic exposure. The present study aims to explore the characteristic trajectories of PTSS, in the context of ensuring controlled levels of traumatic exposure. Furthermore, the PTSS, depressive, and anxiety comorbid symptom networks of different PTSS trajectory subgroups are also investigated.

METHODS

A total of 296 frontline rescue personnel were enrolled into our study. In an effort to control for variations in traumatic exposure severity, this study ensured that all participants had same responsibilities and cumulative operational duration at the post-disaster rescue circumstance. Growth mixture models (GMMs) were employed to scrutinize the trajectories of PTSS. Additionally, network analysis was used to examine the comorbid symptom network of PTSS, depression, and anxiety.

RESULTS

Four distinct PTSS trajectories were identified, namely Persisting Symptom, Gradual Recovery, Gradual Aggravation, and Asymptomatic. Although both the Persisting Symptom and Gradual Aggravation groups belong to the high-risk subgroups for persistent PTSS, they exhibit differences in core symptoms within their respective networks. The core symptom for the Persisting Symptom Network is flashbacks, while for the Gradual Aggravation Network, it is sleep disturbances.

CONCLUSION

To the best of our knowledge, the present study represents the first research endeavor to integrate longitudinal trajectory analysis of PTSS with longitudinal symptom network analysis, clarifying the evolving features of PTSS but also offering valuable insights for early screening and intervention strategies.

Prevalence and associated risk factors of post-traumatic stress disorder among survivors of the 2023 Turkey earthquake

BACKGROUND

Earthquakes can cause psychological trauma among survivors as well as physical trauma. This study aims to determine the prevalence of post-traumatic stress disorder (PTSD) and identify associated risk factors among earthquake survivors after the 2023 Turkey earthquake.

METHODS

This prospective cross-sectional study was conducted in the emergency department of a tertiary university hospital between May 6, 2023, and May 16, 2023. An online questionnaire was sent to the participants. The questionnaire form consisted of three parts. In the first part, the sociodemographic characteristics of the participants were included. In the second part, the participants were asked about their experiences with the earthquake. In the third part, the post-traumatic stress disorder checklist for the Diagnostic and Statistical Manual of Mental Disorders, which screens PTSD among the participants, was included. Participants who did not complete all the questions and had severe communication disorders were excluded.

RESULTS

The prevalence of probable PTSD among the participants was 51.4% (n = 197). Age (OR: 0.96 95% CI: 0.93-99), female gender (OR: 4.54 95% CI: 2.39-8.61), being the head of the family (OR: 2.00 95% CI: 1.04-3.82), bereavement (OR: 1.71 95% CI: 1.03-2.82), lost loved ones (OR: 3.15 95% CI: 1.67-5.92), low social support (OR: 1.80 95% CI: 1.12-2.90) and receiving emergency care at the field (OR: 6.67 95% CI: 1.03-43.2) were the associated risk factors of PTSD among earthquake survivors.

CONCLUSIONS

The prevalence of PTSD among survivors three months after the 2023 Turkey earthquake is over half of the survivors. Younger age, female gender, being the head of the family, bereavement, lost loved ones, low social support, and receiving emergency care in the field were the associated risk factors of PTSD among earthquake survivors. Considering survivors may visit EDs until other outpatient clinics are re-established and the high rate of PTSD, rapid psychological evaluations can be performed in emergency departments. Emergency physicians should be aware of possible risk factors and high rate of PTSD.

Quality of life and its association with psychiatric disorders in outpatients with trauma history in a tertiary hospital in Kathmandu, Nepal: a cross-sectional study

BACKGROUND

Quality of life is an important indicator of health and has multiple dimensions. It is adversely affected in patients with trauma history, and psychiatric disorders play an important role therein. Studies in trauma-affected populations focus mainly on the development of psychiatric disorders. Our study explored various aspects of quality of life in trauma patients in a clinical setting, mainly focusing on the association of psychiatric disorders on various domains of quality of life.

METHODS

One hundred patients seeking help at the psychiatry outpatient of a tertiary hospital in Kathmandu, Nepal, and with history of trauma were interviewed using the World Health Organization Composite International Diagnostic Interview version 2.1 for trauma categorization. Post-traumatic stress disorder symptoms were assessed using the Post-Traumatic Stress Disorder Checklist-Civilian Version; while the level of anxiety and depression symptoms was assessed using the 25-item Hopkins Symptom Checklist-25. Quality of life was assessed using the World Health Organization Quality Of Life-Brief Version measure. Information on sociodemographic and trauma-related variables was collected using a semi-structured interview schedule. The associations between psychiatric disorders and quality of life domains were explored using bivariate analyses followed by multiple regressions.

RESULTS

The mean scores (standard deviations) for overall quality of life and health status perception were 2.79 (.87) and 2.35 (1.11), respectively. The mean scores for the physical, psychological, social and environmental domains were 12.31 (2.96), 11.46 (2.84), 12.79 (2.89), and 13.36 (1.79), respectively. Natural disaster was the only trauma variable significantly associated with overall quality of life, but not with other domains. Anxiety, depression and post-traumatic stress disorder were all significantly associated with various quality of life domains, where anxiety had the greatest number of associations.

CONCLUSION

Quality of life, overall and across domains, was affected in various ways based on the presence of psychiatric disorders such as anxiety, depression and post-traumatic stress disorder in patients with trauma. Our findings therefore emphasize the need to address these disorders in a systematic way to improve the patients' quality of life.

Anxiety and resilience in the face of natural disasters associated with climate change: A review and methodological critique

In the past two decades, climate change-related natural disasters, such as hurricanes, floods, and droughts have become increasingly frequent and severe, impacting the emotional and psychological well-being of those who are directly or indirectly exposed to them. Despite great interest in understanding differences in anxiety and resilience in response to natural disasters, enthusiasm appears to outstrip empirical clarity, as there remains considerable ambiguity as to determinants of resilient or pathological outcomes following exposure to natural disasters. In addition, there are several major methodological limitations in climate change and related natural disaster research, including the use of univariate analyses, cross-sectional design, and retrospective measures. Keeping these limitations in mind, we first review literature examining the mental health outcomes of natural disasters. Findings suggest that, overall, resilience is more common than pathological outcomes. Second, we use a multi-dimensional framework of resilience to selectively review factors at the event, individual, as well as family and community levels that could help inform resilient or pathological outcomes. Finally, we consider key limitations and future directions for research and practice in the field of anxiety and resilience in response to climate disasters.

Risk Factors of Post-traumatic Stress and Depressive Disorders in Longmenshan Adolescents After the 2013 Lushan Earthquake

This study examined the severity of post-traumatic stress and depressive disorders in Longmenshan adolescents after the 2013 Lushan earthquake, as well as relationships among earthquake-related exposure, post-earthquake negative factors, previous exposure to the 2008 Wenchuan earthquake, and level of earthquake impact (city). A cross-sectional survey was conducted among adolescents in Lushan (n = 1416), Baoxing (n = 1102) and Tianquan (n = 1265) at 3 years after the Lushan earthquake. Respondents were evaluated using the Earthquake Experience Scale, the Adolescent Self-rating Life Events Checklist (ASLEC), the Children's Revised Impact of Event Scale (CRIES-13), and the Depression Self-Rating Scale (KADS-6). High levels of post-traumatic stress and depression symptoms were found among adolescents in the most heavily affected cities, and these symptoms were more severe in respondents exposed to the 2008 earthquake. PTSD correlated most strongly with earthquake exposure, whereas depression correlated most strongly with psychosocial stressors following the event.

Posttraumatic stress disorder in Longmenshan adolescents at three years after the 2013 Lushan earthquake

OBJECTIVE

This study aimed to estimate the prevalence and risk factors of probable posttraumatic stress disorder (PTSD) among adolescent survivors of the 2013 Lushan earthquake.

METHODS

A cross-sectional survey was conducted in the Longmenshan thrust fault area at three years after the 2013 earthquake in Lushan, China. Most respondents (60.8%) had also been exposed to the 2008 Wenchuan earthquake. Probable PTSD was identified based on the Children's Revised Impact of Event Scale (CRIES-13), the Adolescent Self-Rating Life Events Checklist and Earthquake Experience Scale. Logistic regression was used to identify risk factors of probable PTSD.

RESULTS

Probable PTSD prevalence was 14.1% among all respondents (n = 3851), 15.9% among those who had been exposed to the 2008 and 2013 earthquakes (n = 2342) and 11.3% among those who had experienced only the 2013 earthquake (n = 1509). Earthquake-related factors most strongly associated with probable PTSD were feeling scared of dying and exposure to the Wenchuan earthquake. The negative life event most strongly associated with probable PTSD was academic stress.

CONCLUSION

Among survivors of the 2013 Lushan earthquake, risk of probable PTSD was significantly higher if the person had also been exposed to the Wenchuan earthquake. Researchers and health care workers should pay more attention to adolescent earthquake survivors, especially those who experienced both the Wenchuan and Lushan earthquakes. Providing psychological care and preventing negative events may be effective measures for reducing PTSD after an earthquake.

Mothers' Grief Experiences of Losing Their Only Child in the 2008 Sichuan Earthquake: A Qualitative Longitudinal Study

The purpose of this study is to explore bereaved mothers' 2-year experiences of losing their only child in the 2008 Sichuan earthquake. Taking an interpretative phenomenological approach, this study interviewed six bereaved mothers four times (6 months, 12 months, 18 months, and 24 months) in Dujiangyan area in Sichuan Province. The findings suggest that these mothers' personal grief experiences evolved: initially, anger toward the cause of their children's deaths, following despair of meaningless life, guilt and regret, and finally yearning. Although their yearning and missing ebbed after 2 years, these mothers still had unresolved grief. These mothers also faced strained marital relationships and additional pressure from social interactions. This study illuminates that these mothers' personal grief experiences and their coping strategies corresponded to Chinese family and sociocultural context.

A Meta-Analysis of Risk Factors for Post-Traumatic Stress Disorder (PTSD) in Adults and Children after Earthquakes

PTSD is considered the most common negative psychological reactions among survivors following an earthquake. The present study sought to find out the determinants of PTSD in earthquake survivors using a systematic meta-analysis. Four electronic databases (PubMed, Embase, Web of Science, and PsycInfo) were used to search for observational studies about PTSD following earthquakes. The literature search, study selection, and data extraction were conducted independently by two authors. 52 articles were included in the study. Summary estimates, subgroup analysis, and publication bias tests were performed on the data. The prevalence of PTSD after earthquakes ranged from 4.10% to 67.07% in adults and from 2.50% to 60.00% in children. For adults, the significant predictors were being female, low education level or socio-economic status, prior trauma; being trapped, experiencing fear, injury, or bereavement during the disaster. For children, the significant predictors were being older age, high education level; being trapped, experiencing fear, injury, or bereavement, witnessing injury/death during the earthquakes. Our study provides implications for the understanding of risk factors for PTSD among earthquake survivors. Post-disaster mental health recovery programs that include early identification, on-going monitoring, and sustained psychosocial support are needed for earthquake survivors.

Mental health problems among survivors in hard-hit areas of the 5.12 Wenchuan and 4.20 Lushan earthquakes

BACKGROUND

Earthquake exposure has often been associated with psychological distress. However, little is known about the cumulative effect of exposure to two earthquakes on psychological distress and in particular, the effect on the development of post-traumatic stress disorder (PTSD), anxiety and depression disorders.

AIMS

This study explored the effect of exposure on mental health outcomes after a first earthquake and again after a second earthquake.

METHODS

A population-based mental health survey using self-report questionnaires was conducted on 278 people in the hard-hit areas of Lushan and Baoxing Counties 13-16 months after the Wenchuan earthquake (Sample 1). 191 of these respondents were evaluated again 8-9 months after the Lushan earthquake (Sample 2), which struck almost 5 years after the Wenchuan earthquake.

RESULTS

In Sample 1, the prevalence rates for PTSD, anxiety and depression disorders were 44.53, 54.25 and 51.82%, respectively, and in Sample 2 the corresponding rates were 27.27, 38.63 and 36.93%. Females, the middle-aged, those of Tibetan nationality, and people who reported fear during the earthquake were at an increased risk of experiencing post-traumatic symptoms.

CONCLUSIONS

Although the incidence of PTSD, anxiety and depression disorders decreased from Sample 1 to Sample 2, the cumulative effect of exposure to two earthquakes on mental health problems was serious in the hard-hit areas. Therefore, it is important that psychological counseling be provided for earthquake victims, and especially those exposed to multiple earthquakes.

Posttraumatic stress disorder and posttraumatic growth coexistence and the risk factors in Wenchuan earthquake survivors

Various studies have assessed the negative and/or positive changes in the aftermath of traumatic events. Yet few of these have addressed the factors associated with the coexistence of both negative and positive changes after a devastating earthquake. The aim of this study is to assess the relationship between the negative and positive changes and elucidate the risk factors of such changes one year after Wenchuan earthquake. A total of 2080 survivors from 19 counties participated in a self-report questionnaire survey which included the posttraumatic stress disorder (PTSD) Check list-Civilian, the posttraumatic growth PTG Inventory (PTGI). The prevalence of PTSD and moderate PTG was found to be 40.1% (95% CI [37.9% 42.3%]) and 51.1% (95% CI [48.9% 53.3%]). The PTSD and moderate PTG coexistence was 19.6% (95% CI [17.8% 21.4%]). PTSD symptom severity was significantly positively associated with the PTG score. Middle aged groups (31-40 and 41-50 years old, OR=2.323, 95% CI [1.059, 5.095] and OR=2.410, 95% CI [1.090, 5.329] respectively), those with lower income levels (OR=8.019, 95% CI [2.421, 26.558]), those living in temporary house (OR=1.946, 95% CI [1.280, 2.956]), and those who had had less social support (OR=1.109, 95% CI [1.076, 1.143]) had a significantly higher possibility for the presence of PTSD and moderate PTG coexistence. The results indicated the widespread positive changes in earthquake survivors. Better income levels and living conditions and higher social support were suggested to promote PTG in those with PTSD.

Religious Beliefs, PTSD, Depression and Resilience in Survivors of the 2010 Haiti Earthquake

BACKGROUND

This study examines relationships between religious beliefs regarding the origin of the 2010 earthquake in Haiti and posttraumatic symptomatology as well as depressive symptoms and resilience among its survivors.

METHOD

We used convenient sampling to recruit participants (n=167). They completed six scales, which had been translated into Haitian Creole, including measures such as the Earthquake Experiences Exposure (EEE), the Peritraumatic Distress Inventory (PDI), the Peritraumatic Dissociative Experience Questionnaire (PDEQ), the PTSD Checklist (PTSD-CL), the Beck Depression Inventory (BDI) and the Connor-Davidson Resilience Scale (CD- RISC) RESULTS: Among our participants, 51% were male, (mean age=30.5, SD=11.03), 92% (n=155) were believers in some sort of supernatural force and 65% (n=108) endorsed the earthquake as a natural phenomenon. There was significant difference in average scores at peritraumatic distress, PTSD symptoms and Resilience measures between those perceiving a divine origin and/or a punishment through the event and those who did not. Peritraumatic responses were best predictors for PTSD (β=.366, p<.001) and Depression symptoms (β=.384, p<.001). Voodoo adherents appeared to be vulnerable to depression, but reported superior resilience factors.

Post traumatic stress disorder and coping in a sample of adult survivors of the Italian earthquake

The aim was to investigate the prevalence of post traumatic stress disorder (PTSD) in people who had left their damaged homes and were still living in temporary housing more than a year after the April 2009 L'Aquila (Italy) earthquake. In addition, we evaluated the differences in coping strategies implemented by persons who had and who did not have PTSD. A cross-sectional prevalence study was carried out on a sample of 281 people aged >18 years and living in temporary housing after the earthquake. The questionnaires used include the Davidson Trauma Scale and the Brief Cope. The prevalence of PTSD was 43%. Women and the non-employed were more vulnerable to PTSD, while, age and level of education were not associated with PTSD. Those with PTSD symptoms often employed maladaptive coping strategies for dealing with earthquake and had the highest scores in the domains of denial, venting, behavioral disengagement, self-blame. By contrast, those without PTSD generally had more adaptive coping mechanisms. Adults who were living in temporary housing after the earthquake experienced high rates of PTSD. The difference in coping mechanisms between those who have PTSD and those who do not also suggests that they influence the likeliness of developing PTSD.

NGO collaboration in community post-disaster reconstruction: field research following the 2008 Wenchuan earthquake in China

The number of communities affected by disasters has been rising. As a result, non-governmental organisations (NGOs) that attend community post-disaster reconstruction are often unable to deliver all requirements and have to develop cooperative approaches. However, this collaboration can cause problems because of the complex environments, the fight for limited resources and uncoordinated management, all of which result in poor service delivery to the communities, adding to their woes. From extensive field research and case studies conducted in the post-Wenchuan earthquake-stricken communities, this paper introduces an integrated collaboration framework for community post-disaster reconstruction with the focus on three types of NGOs: international, government organised and civil. The proposed collaboration framework examines the three interrelated components of organisational structure, operational processes and reconstruction goals/implementation areas. Of great significance in better promoting collaborative participation between NGOs are the crucial concepts of participatory reconstruction, double-layer collaborative networks, and circular review and revision.

Long-term outcomes among child and adolescent survivors of the 2010 Haitian earthquake

BACKGROUND

We examined the prevalence and predictive factors of PTSD and depression in relation with peritraumatic distress, trauma exposure, and sociodemographic characteristics among children and adolescent who survived the 2010 Haiti's earthquake.

METHODS

We analyzed data collected between June and July 2012 from a sample of 872 participants aged 7 to 17 in 12 schools, door-to-door canvassing and two centers for street children at Port-au-Prince. Participants completed the Impact of Event Scale Revised (IES-R), Peritraumatic Distress Inventory, Child Depression Inventory 2 (CDI), and sociodemographic and traumatic exposure questionnaires.

RESULTS

Of 872 participants, respectively 322 (36.93%); and 403 (46.21%) reported a clinically significant symptoms of PTSD and depression, which were significantly higher among girls. The best predictive variables are peritraumatic distress for PTSD (β=0.53,P<.0001) a traumatic exposure for depression (β=0.23,P<.0001). The comorbidity between PTSD and depression symptoms is 22.25%.

CONCLUSIONS

This first study in children on the prevalence of PTSD and depression resulting from the 2010 Haiti earthquake demonstrates a need for improvement in treatment aimed at reducing PTSD and depression. Such treatment should be geared primarily toward girls, adolescents between the ages of 14 and 17 and those children and adolescents who have lost a family member in the earthquake.

Prevalence and determinants of depression among survivors 8 months after the Wenchuan earthquake

The current study assessed the estimated rate of depression and associated risk factors among survivors 8 months after the 2008 Wenchuan earthquake in China. A stratified random sample of 1514 participants was recruited from all temporary camp communities in a county town 45 km away from the epicenter. The estimated rate of depression was 35.7%. The severity of depressive symptoms was significantly associated with female sex, perceived livelihood security, loss of a family member, residential house damage or collapse, and not living in an urban area, whereas married status is a protector against depressive symptoms. The results suggest that community-based effective, sustainable, and culturally sensitive interventions and services are warranted and should be directed to the groups at high risk for mental health problems.

Assessment of prevalence and determinants of posttraumatic stress disorder and depression symptoms in adults survivors of earthquake in Haiti after 30 months

BACKGROUND

On January 12, 2010, a powerful 7.0 magnitude earthquake struck the Republic of Haiti and destroyed Port-au-Prince, the capital and others cities across the country. While some studies have examined the long-term traumatic effects of the seismic event on children and adolescents victims, so far no study has examined the consequences on adults generally. As such, this study aims to investigate the traumatic consequences of the earthquake among adults related to degree of exposure, peritraumatic distress, depressive symptoms and sociodemographic factors two and a half years after. In addition, predictive factors of PTSD and depressive symptoms were also identified.

METHODS

From June to July 2012, a total of 1355 adults (660 women) was assessed by means the traumatic exposure questionnaire, the Life Events Checklist subscale, the Peritraumatic Distress Inventory (PDI), the Impact of Event Scale - Revised (IES-R) and the Beck Depression Inventory (BDI), in addition to social demographic characteristics.

RESULTS

The prevalence rates of PTSD and depressive symptoms were 36.75% (498 cases) and 25.98% (352 cases) respectively. The risk factors for PTSD and depressive symptoms were young and old age, female gender, unemployed status and low level of education. The bests predictives variables were peritraumatic distress for PTSD (β=.57, p<.0001) and for depressive symptoms (β=.21, p<.0001). The commorbidity between PTSD and depression was 13.36%.

CONCLUSIONS

This study found that psychological symptoms are frequent event 30 months after the earthquake. The different mental health care providers, the public health ministry, NGOs working on the ground in Haiti should design programmes in order to aid the psychological wellbeing of the population focussing on youth, older and retired adults, females, people with low levels of education and those who do not work.

A cross-sectional study on risk factors of depression severity among survivors of the 2008 Sichuan earthquake

To examine depression severity and associated risk factors 1 year later among survivors of the May 12, 2008 Wenchuan earthquake in China, a cross-sectional study was conducted. Subjects included 704 survivors, ages 18-64, 367 (52.1 %) of whom were from heavily damaged counties and the rest from moderately damaged ones. Subjects were interviewed for socio-demographic variables, exposure level, and administered standardized scales for depression, anxiety, resilience, and social support. 23.0 % (N = 162) and 13.8 % (N = 97) of all subjects had moderate and severe depression, respectively, with depression severity being higher in severely damaged counties compared to moderately damaged ones (18.2 vs 8.9 %). Multiple regression analysis indicated that depression severity varied with gender, age, education level, exposure level, income, housing status, and social support. The association between income level and symptoms of depression were partially mediated by social support (ratio of mediation effects: 41.9 and 22.3 % for heavily and moderately damaged counties, respectively). The data support the need for early mental health intervention and provision of social support in this vulnerable population.

Depression and posttraumatic stress disorder in temporary settlement residents 1 year after the Sichuan earthquake

The authors sought to determine the prevalence and risk factors for major depressive disorder and posttraumatic stress disorder (PTSD) among survivors living in temporary accommodation in the Yongxing settlement in Mianyang city 1 year after the Sichuan earthquake for further interventions. They interviewed 182 residents, using the Structured Clinical Interview for DSM-IV Axis I Disorders and a self-report questionnaire. The 12-month prevalence of depressive disorder and PTSD were 48.9% and 39.6%, respectively. Multivariate analysis indicated that bereaved survivors were 5.51 times (adjusted odds ratio [AOR] = 5.51; 95% confidence interval [CI] =2.14-14.22) more likely to report PTSD and 2.42 times (AOR = 2.42; 95%CI =1.00-5.48) more likely to report depressive disorder than nonbereaved survivors. Older age and receipt of government financial support were significantly associated with 12-month PTSD. Depressive disorder 12 months after the earthquake was associated with receipt of government financial support, pre-earthquake physical illness, single marital status, being currently employed, and Han ethnicity.

Current status on behavioral and biological markers of PTSD: a search for clarity in a conflicting literature

Extensive research has identified stereotypic behavioral and biological abnormalities in post-traumatic stress disorder (PTSD), such as heightened autonomic activity, an exaggerated startle response, reduced basal cortisol levels and cognitive impairments. We have reviewed primary research in this area, noting that factors involved in the susceptibility and expression of PTSD symptoms are more complex and heterogeneous than is commonly stated, with extensive findings which are inconsistent with the stereotypic behavioral and biological profile of the PTSD patient. A thorough assessment of the literature indicates that interactions among myriad susceptibility factors, including social support, early life stress, sex, age, peri- and post-traumatic dissociation, cognitive appraisal of trauma, neuroendocrine abnormalities and gene polymorphisms, in conjunction with the inconsistent expression of the disorder across studies, confounds attempts to characterize PTSD as a monolithic disorder. Overall, our assessment of the literature addresses the great challenge in developing a behavioral and biomarker-based diagnosis of PTSD.

Secondary stressors and extreme events and disasters: a systematic review of primary research from 2010-2011

Introduction Extreme events and disasters, such as earthquakes and floods, cause distress and are associated with some people developing mental disorders. Primary stressors inherent in many disasters can include injuries sustained or watching someone die. The literature recognises the distress which primary stressors cause and their association with mental disorders. Secondary stressors such as a lack of financial assistance, the gruelling process of submitting an insurance claim, parents’ worries about their children, and continued lack of infrastructure can manifest their effects shortly after a disaster and persist for extended periods of time. Secondary stressors, and their roles in affecting people’s longer-term mental health, should not be overlooked. We draw attention in this review to the nature of secondary stressors that are commonly identified in the literature, assess how they are measured, and develop a typology of these stressors that often affect people after extreme events. Methods We searched for relevant papers from 2010 and 2011 using MEDLINE®, Embase and PsycINFO®. We selected primary research papers that evaluated the associations between secondary stressors and distress or mental disorders following extreme events, and were published in English. We extracted information on which secondary stressors were assessed, and used thematic analysis to group the secondary stressors into a typology. Results Thirty-two relevant articles published in 2010 and 2011 were identified. Many secondary stressors were poorly defined and difficult to differentiate from primary stressors or other life events. We identified 11 categories of secondary stressors, though some extend over more than one category. The categories include: economic stressors such as problems with compensation, recovery of and rebuilding homes; loss of physical possessions and resources; health-related stressors; stress relating to education and schooling; stress arising from media reporting; family and social stressors; stress arising from loss of leisure and recreation; and stress related to changes in people’s views of the world or themselves. Limitations in this review include its focus on studies published in 2010 and 2011, which may have led to some secondary stressors being excluded. Assumptions have been made about whether certain items are secondary stressors, if unclear definitions made it difficult to differentiate them from primary stressors. Conclusions This is the first review, to our knowledge, that has developed a typology of secondary stressors that occur following extreme events. We discuss the differing natures of these stressors and the criteria that should be used to differentiate primary and secondary stressors. Some secondary stressors, for example, are entities in themselves, while others are persisting primary stressors that exert their effects through failure of societal responses to disasters to mitigate their immediate impacts. Future research should aim to define secondary stressors and investigate the interactions between stressors. This is essential if we are to identify which secondary stressors are amenable to interventions which might reduce their impacts on the psychosocial resilience and mental health of people who are affected by disasters. Corresponding Author: Dr Sarah Lock, Extreme Events and Health Protection, London, 151 Buckingham Palace Road, London, SW1W 9SZ. E-mail: sarah.lock@hpa.org.uk

A cross-sectional study on posttraumatic stress disorder among elderly Qiang citizens 3 years after the Wenchuan earthquake in China

OBJECTIVE

To determine the prevalence of posttraumatic stress disorder (PTSD) and to identify the associated risk factors among elderly citizens belonging to the Qiang ethnic minority group 3 years after the Wenchuan earthquake in China.

METHODS

A cross-sectional survey of 287 respondents aged 60 years and older was conducted to collect data in Beichuan County, a heavily damaged area. PTSD was assessed according to the Clinician-Administered PTSD Scale for Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition. Independent demographic, socioeconomic and trauma exposure variables were also measured. Association between the independent variables and PTSD was analyzed using logistic regression analysis.

RESULTS

The prevalence of PTSD was 22.65% among elderly Qiang citizens in Beichuan County. Being female, being widowed, having a low level of education, having low monthly income, suffering bodily injury, being bereaved, and having a low level of social support were risk factors significantly related to the development of PTSD.

CONCLUSION

The results indicate that PTSD remained at an elevated level among elderly Qiang citizens in the heavily damaged area 3 years after the Wenchuan earthquake. Effective and sustainable mental health services are needed and should be directed particularly to the elderly Qiang citizens who are among the groups most vulnerable to the direct impact of the earthquake.