Earthquake Exposure Research Articles

Moderated mediation role of trust in authorities by the Kahramanmaras earthquake survivors

ABSTRACT This article examines the moderated mediation role of trust in authorities in the direct and indirect effects of earthquake exposure on psychological distress symptoms (depressive, anxiety and stress symptoms) through somatic fear (sleep loss and increased heart rates). Convenience and snowball sampling methods were used to collect survey data from 552 adult participants (221 men, 331 women) living in the earthquake zone. The independent variable is earthquake exposure, the mediating variable is somatic fear, and the moderating variable is trust in authorities (emergency plans and strategies, government policies, and media information). Factor analysis using structural equation modelling confirmed one factor for fear of earthquake and trust in authorities and three factors for symptoms of psychological distress. Regression results showed that disaster survivors had low trust in authorities in Turkiye. Mediation and moderated mediation results based on the bootstrap method showed that somatic fear mediated the effect of earthquake exposure on depressive symptoms, anxiety symptoms and stress symptoms, and trust in authorities moderated the indirect effects of earthquake exposure on stress symptoms through somatic fear. Increased trust in authorities in Turkiye would alleviate psychological distress symptoms among the Kahramanmaras earthquake survivors.

Upstream propagation of shocks in supply chains: Evidence from earthquakes

AbstractWe investigate how natural disaster shocks to customers propagate upstream to suppliers’ investment. Using data from the major customers of Chinese listed firms and earthquake information during 2009–2019, we investigate the impact of customers’ earthquake exposure on corporate investment. We find that firms significantly reduce investment after their customers experience earthquakes, particularly for non‐state‐owned enterprises, firms with higher product uniqueness, firms in competitive industries, and firms in nondurable goods industries. Furthermore, our analysis highlights firms’ sales as one of the potential channels through which customers’ earthquake exposure influences firm investment. We also find that following an earthquake supplier firms reduce their transactions with the affected customers and develop alternative customers.

Pregnant women’s depression and posttraumatic stress levels after the large-scale Turkey earthquakes: a cross-sectional study

ABSTRACT Depression and posttraumatic stress disorder are two common mental disorders after negative life events. This study was conducted to evaluate the depression and posttraumatic stress levels of pregnant women after the large-scale earthquakes that occurred in Turkey in 2023. The study was carried out with 395 pregnant women who visited maternity outpatient clinics of a public hospital in a province in southern Turkey. The data were collected with the Beck Depression Inventory (BDI) and the Post-Traumatic Stress Disorder Checklist – Civilian Version (PCL-C). Descriptive statistics, the independent-samples t-test, and the Pearson correlation test were used in the analyses of the data. Among all participants, 3.8 percent had a likely depression risk, and 31.9 percent exhibited posttraumatic stress disorder symptoms. A statistically significant relationship was found between the earthquake exposure of the participants and their BDI and PCL-C total scores (p < .05). The BDI scores of the participants also had statistically significant relationships to their PCL-C scores (p < .05). In this study, it was discerned that posttraumatic stress disorder symptoms were prevalent among pregnant women in the post-earthquake period. Psychological support is needed to improve the mental health of the pregnant women after earthquakes.

Exploring the relationship between earthquake exposure and severity of erectile dysfunction in southern part of Türkiye.

This study aimed to explore the impact of psychological stress on erectile dysfunction (ED) in male patients following the Gaziantep-Kahramanmaras earthquake. The investigation aimed to establish correlations between earthquake-induced stress and changes in sexual function using International Index of Erectile Function (IIEF), Patient Health Questionnaire-9 (PHQ-9), and Generalized Anxiety Disorder-7 (GAD-7) scores. A retrospective analysis was conducted on male ED patients from a Gaziantep urology clinic post-earthquake (March to August 2023). Patients with deteriorated erectile function post-earthquake (group 1) and those with pre-existing ED experiencing worsened symptoms post-earthquake (group 2) were included. Data collected encompassed sexual histories, IIEF scores, laboratory tests, and PHQ-9/GAD-7 evaluations. Patients were also evaluated mild and mild to moderate ED, moderate and severe ED according to IIEF erectile function. Seventy-six patients were evaluated (24 in group 1 and 52 in group 2). Significant reductions in total IIEF scores (58 to 40 in group 1 and 49 to 33 in group 2) were observed post-earthquake in both groups (p<0.001). PHQ-9/GAD-7 scores was 11.12±3.79/9.34±3.11 in mild and mild to moderate ED and 13.17±3.05/12.14±3.17 in moderate and severe ED (p=0.011, p<0.001, respectively). Negative correlations existed between PHQ-9/GAD-7 scores and IIEF erectile function (p<0.05) and total IIEF (p<0.05). This research suggests a plausible connection between the Gaziantep-Kahramanmaras earthquake and heightened ED cases. Psychological stress post-earthquake may contribute to worsened ED symptoms. Further investigations are warranted to comprehensively understand the interplay between natural disasters and sexual dysfunction, essential for optimizing patient care in challenging situations.

The effect of earthquake exposure on PTSD symptoms is mediated by intrusive rumination and moderated by gender: a cross-sectional study on the 2023 Kahramanmaraş earthquake survivors

BackgroundEvidence suggests that natural disasters, such as earthquakes, can lead to post-traumatic stress disorder (PTSD), with women being particularly vulnerable. However, there is a dearth of knowledge about the underlying mechanisms linking traumatic experiences to PTSD as well as gender differences in the operation of these mechanisms. This study examined the mediating effect of intrusive rumination and the moderating effect of gender on the relationship between earthquake exposure level and PTSD symptoms.MethodsThis cross-sectional study was conducted 12 months after the devastating earthquake in Kahramanmaraş, Turkey. The sample included 632 adult survivors of the earthquake, including 374 females (59.2%) and 258 males (40.8%). Participants completed a set of questionnaires assessing their demographic information, level of earthquake exposure, intrusive rumination, and PTSD symptoms. Correlation analysis, mediation analysis, and conditional process analysis were employed to evaluate the research hypotheses.ResultsFindings revealed significant associations between the level of earthquake exposure, intrusive rumination and PTSD symptoms. The level of earthquake exposure significantly predicted PTSD symptoms. Moreover, intrusive rumination partially mediated the relationship between earthquake exposure level and PTSD symptoms. Additionally, the mediating effect of intrusive rumination was more pronounced among females than males.ConclusionThis study revealed the significant mediating role of intrusive rumination in the development of post-earthquake PTSD symptoms. By uncovering gender differences in this mechanism, it also emphasized the importance of designing interventions that are sensitive to the varying needs of different demographic groups affected by the disaster in post-disaster mental health interventions.

Optimizing Retrofit Strategies for RC Frames through Combined Techniques

Over the past twenty years, researchers have directed their efforts towards enhancing the earthquake resistance ofconcrete frames through repair and retrofitting. Two main approaches have emerged for bolstering the seismicresilience of previously intact structures prior to earthquake exposure. The first involves augmenting the existingstructure with additional components like steel bracing, while the second entails reinforcing specific structuralelements, such as employing steel cages. Seismic response analyses have been conducted on multi-story reinforcedconcrete (RC) frames originally designed without seismic considerations. This study aims to assess the effectiveness ofretrofitting techniques by comparing the outcomes of employing steel braces, steel cages, and their combinations. Theseismic performance is evaluated according to the RPA 2003 seismic code for Algeria, following the latest guidelines.Static nonlinear analysis was utilized to compare the seismic responses of existing non-ductile RC frames under variousretrofitting schemes.

Fracturing behavior and damage model of spatial-rotation fissured sandstone: An experimental study on freeze–thaw and fatigue loads coupling

Earthquake exposure can greatly weaken the mechanical properties and affect the failure process of fractured rocks in cold regions. Creep tests of the spatial-rotation (SR) fissured rock with sandstone as the bedrock under different fatigue combinations and angles were carried out. The effects of freeze–thaw and fatigue loads (FT-FLs) on the deformation behaviour of samples, for example, creep, fatigue deformation, frost heave pressure, and creep rate, were explored. The mechanical responses and failure modes of the specimens were analysed in detail. Based on the experimental results, a new coupled damage model was explored. The results show that in addition to the typical creep stage, the rheological curve also included the phase of disturbance deformation under fatigue loading. The attenuation rates of the rock samples had downward trends with increasing load level under the fatigue combinations and angles, and these decreasing trends had linear characteristics. Moreover, the fatigue rate values increased gradually as the fatigue amplitude, fissure angle and rotation angle increased. In addition, with the change in the fissure and rotation angles, the curves of the tensile crack number had inverted U-shaped trends. The 3D fracture patterns under fatigue were dominated by vertical and vertical-lateral penetration, in which secondary fissure expansion also occurred at different angles. A combined damage model based on the damage variable of freeze–thaw cycles, fatigue loading, and spatial rotation of fissures was established. Compared with test data and other models, the coupled model has good accuracy in describing the entire failure process of specimens under FT-FLs and provides a new framework for the stability of fractured rock masses.

Post-traumatic growth in later-life cognitive function? Evidence from the 1976 Great Tangshan Earthquake.

This study aimed to explore the long-term impacts of exposure to earthquake in adolescence on later-life cognitive function in China. Data were from the 2015 China Health and Retirement Longitudinal Study (CHARLS). Our analytical sample comprised 4394 participants aged 49 to 78 from two birth cohorts born between 1937 and 1966: exposed cohort during adolescence (born between 1952 and 1966), and non-exposed cohort during adolescence (born between 1937 and 1951). We defined earthquake exposure as the exposure severity of the 1976 Great Tangshan Earthquake (GTE). We selected community environmental characteristics as our key moderators. A difference-in-differences (DID) method was employed to estimate the long-term impact of the GTE on later-life cognitive function. We found that exposure to the earthquake during adolescence resulted in higher scores of later-life cognitive function (for males: β = 2.18; 95% CI: 0.70-3.66; for females: β = 1.22; 95% CI: 0.11-2.33). For males, this impact was moderated by community environmental characteristics including the old-age allowance program (β = 3.07; 95% CI: 1.94-4.19) and the condition of basic community infrastructures (β = 1.52; 95% CI: 0.84-2.19). Our study supports the post-traumatic growth theory. This finding suggest that individuals with early-life traumatic exposure need to be focused on. Additionally, improving the conditions of community infrastructures and establishing a community environment with comfort and security may be pretty important for promoting cognitive function and post-traumatic growth.

Shattered ground, resilient souls: examining coping strategies, social support, and earthquake exposure’s effects on post-traumatic stress disorder symptoms among adolescent and young adults survivors of the 2023 earthquake in Türkiye

Given the profound impact of natural disasters on mental health, particularly in vulnerable groups such as adolescent and young adult, understanding their psychological results is crucial for providing necessary support and designing effective interventions. The aim of this study was to investigate the relationships between earthquake exposure, posttraumatic stress symptoms, coping mechanisms, and social support in adolescents and young adults who survived the 2023 earthquake in Turkey. The research was conducted in Kırıkhan district of Hatay province, which was severely damaged after the earthquake that occurred in Turkey in 2023. The sample for the descriptive and cross-sectional study consisted of 204 participants. Convenience sampling method was used for data collection. Data were collected using the Personal Information Form (PIF), Impact of Events Scale (IES), Stress Coping Strategies Inventory (CSSI), and Multidimensional Perceived Social Support Scale (MPSSS). Hierarchical multiple regression analysis was used to determine the factors associated with IES-R scores. Three models were tested to understand the factors predicting levels of posttraumatic stress (IES-R scores). The findings suggest that exposure to earthquake, problem-focused coping and seeking support play an important role in understanding posttraumatic stress levels. This study provides valuable insights into the psychological impact of the earthquake on adolescents and young adults, as well as the development of effective intervention strategies and support programs for young earthquake survivors.

Exposure to earthquakes and development of ischemic heart disease

BackgroundThe evidence regarding the effect of earthquake exposure on the development of cardiovascular diseases is limited. This study evaluated the association between the 2016 Gyeongju earthquake, which had a magnitude of 5.8, and over 600 subsequent aftershocks occurring within a year in Korea, with the development of ischemic heart disease (IHD) among residents of Gyeongju.MethodsTen years (2010–2019) of medical records from a randomly selected cohort of residents (n = 540,858) in Gyeongju and 3 control cities were acquired from the national health insurance service. Employing difference-in-difference and meta-analyses, the risks of IHD development of Gyeongju residents before (reference: Sep 2014 to Aug 2015; period 1: Sep 2015 to Aug 2016) and after (period 2: Sep 2016 to Aug 2017; period 3: Sep 2017 to Aug 2018; period 4: Sep 2018 to Aug 2019) the earthquake were estimated.ResultsThe monthly average incidence of IHD in Gyeongju was 39.5 persons (per 1,000,000) for reference period and 38.4 persons for period 1. However, the number increased to 58.5 persons in period 2, and 49.8 persons in period 3, following the earthquake. The relative risk (RR) [with a 95% confidence interval] of developing IHD among Gyeongju residents increased by 1.58 times (1.43, 1.73) in period 2, 1.33 times (1.21, 1.46) in period 3, and 1.15 times (1.04, 1.27) in period 4, in comparison to both the control cities and the pre-earthquake reference period. The increase in RR was particularly noticeable among women, adults aged 25–44, and individuals with lower incomes.ConclusionsThe major earthquake in Korea was associated with an increase in the development of IHD among local residents. Individuals exposed to earthquakes may benefit from cardiovascular health surveillance.

The mental health impact of the 2023 earthquakes on the Syrian population: cross-sectional study.

Natural disasters have a significant impact on the mental health of affected populations. The February 2023 earthquakes in Syria and Turkey caused widespread devastation. To explore the mental health impact of the earthquakes in Syria on the population across areas differentially damaged by the disaster. This cross-sectional study conducted in Syria included 1406 adults recruited via social media platforms 1 month after the February 2023 earthquakes. Demographic information, earthquake exposure questions, the PTSD Checklist for DSM-5 (PCL-5: for probable post-traumatic stress disorder, PTSD), the Patient Health Questionnaire-9 (PHQ-9: for probable depression) and the seven-item Generalized Anxiety Disorder scale (GAD-7: for probable anxiety) were included to compare outcomes across areas severely, moderately and slightly damaged by the earthquakes. Probable PTSD and GAD rates were higher in the severely (57.9 and 57.3% respectively) and moderately damaged regions (55.4 and 56.3% respectively) than in the slightly damaged regions (44.6 and 48.3% respectively) (PTSD: P < 0.001, GAD: P = 0.005). More participants in severely damaged regions (60.6%) reported symptoms of depression compared with moderately (53.1%) and slightly damaged (50.8%) regions (P = 0.003). Poorer mental health outcomes were associated with being female, single, younger, having a damaged or destroyed house, seeing something tragic in person and hearing tragic stories. Seeing something tragic on social media was not statistically significant. This study highlights the higher prevalence of probable mental disorders in areas with more severe earthquake damage, with over 50% of the population reporting probable PTSD, depression or anxiety. The study also suggests a significant cumulative effect of these earthquakes on an already trauma- and disaster-affected population.

Comorbid trajectories of posttraumatic stress disorder symptoms and depressive symptoms in a 10-year cohort of Chinese Wenchuan earthquake survivors: Course, predictors, and consequences.

Survivors may suffer mental health problems following disasters, particularly posttraumatic stress disorder (PTSD) and depressive symptoms. However, few studies have explored longitudinal processes of co-occurring PTSD and depressive symptoms among adolescent survivors and their associated predictors and consequences. The present study examines the codevelopment of both symptoms postearthquake using a 10-year cohort. A total of 1,357 senior high school students reported PTSD and depressive symptoms at 6, 12, 18, and 24 months after the 2008 Wenchuan earthquake. Self-report measures were also used to evaluate earthquake exposure, negative life events, social support, and trait resilience. At the 10-year follow-up (T10y), 799 participants reported their quality of life (QoL) online and 744 of them provided available data. A parallel-process latent class growth analysis was used to identify trajectories. Multinominal logistic and linear regressions were used, respectively, to analyze the predictors and consequences of these trajectories. Three comorbid trajectories were found: a resilient group (56.7%), a vulnerable group (33.3%), and a chronic high-risk group (9.9%). Gender, injury/missing/killed of family members, witnessing of traumatic sciences, negative life events, social support, and trait resilience were significant predictors of vulnerable and chronic high-risk groups. Finally, adolescents in these two groups were more likely to experience poorer QoL in adulthood. The results highlight the heterogeneity of depression-PTSD comorbidities among adolescent survivors. They also emphasize PTSD-depression symptoms predictors and their adverse impacts on life outcomes in adulthood. Individualized interventions should be provided for adolescents affected by natural disasters, especially those in the vulnerable and higher risk groups. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Interaction of Val66Met BDNF and 5-HTTLPR polymorphisms with prevalence of post-earthquake 27-F PTSD in Chilean population.

Post-traumatic stress (PTSD) disorder is a mental health condition that can occur after experiencing or witnessing a traumatic event. The 27-F earthquake that struck Chile in 2010 was one such event that had a significant impact on the mental health of the population. A study was conducted to investigate the prevalence of PTSD and its associated factors among survivors of this earthquake. The study was a longitudinal design, involving a sample of 913 patients aged 18 to 75 years who attended 10 Primary Care Centers in Concepción, Chile. The Composite International Diagnostic Interview (CIDI) was used to assess both depressive episodes (DE) and PTSD before and after the earthquake. The study also involved genotyping studies using saliva samples from the participants, specifically focusing on the Val66Met and 5-HTTLPR polymorphisms. Statistical analysis was performed to examine the association between different variables and the presence of PTSD. These variables included demographic factors, family history of psychiatric disorders, DE, childhood maltreatment experiences, and critical traumatic events related to the earthquake. The results showed that the incidence of post-earthquake PTSD was 11.06%. No significant differences were found between the groups of participants who developed post-earthquake PTSD regarding the Val66Met or 5-HTTLPR polymorphisms. However, a significant association was found between the concomitant diagnosis of DE and the development of post-earthquake PTSD. The presence of DE doubled the risk of developing post-earthquake PTSD. The number of traumatic events experienced also had a statistically significant association with an increased risk of developing post-earthquake PTSD. The study's limitations include the potential interference of different DE subtypes, the complexity of quantifying the degree of earthquake exposure experienced by each individual, and events entailing social disruption, such as looting, that can profoundly influence distress. In conclusion, the study found that PTSD following the 27-F earthquake in Chile was associated with a concomitant diagnosis of DE and the number of traumatic events experienced. The study did not find a significant association between PTSD and the Val66Met or 5-HTTLPR polymorphisms. The researchers recommend that mental health professionals should prioritize the detection and treatment of concomitant depressive episodes and exposure to critical traumatic events in survivors of disasters. They also suggest that further research is needed to better understand the relationship between genetic factors and post-disaster PTSD.

Earthquake exposure during adolescence and later-life depressive symptoms: A national cross-sectional survey

BackgroundThis study aimed to examine the association between exposure to the 1976 Great Tangshan Earthquake (GTE) in adolescence and later-life depressive symptoms and to investigate the potential mechanisms underlying this association. MethodsData were from the 2015 China Health and Retirement Longitudinal Study (CHARLS). The 10-item short form of the Center for Epidemiologic Studies Depression scale (CESD-10) was chosen to measure depressive symptoms. We used the difference-in-difference (DID) method, binary logistic regression models, and multilevel logistic regression models to explore the association of earthquake exposure during adolescence with later-life depressive symptoms. Additionally, multilevel mediation analysis with structural equation modeling (MMSEM) was conducted to investigate potential mechanisms. ResultsWe identified that adolescent exposure to earthquakes was related to a lower risk of depressive symptoms in later life (OR = 0.90, P = 0.019; OR = 0.48, P = 0.031; OR = 0.47, P = 0.034, respectively). However, this significant association was observed only in females (OR = 0.83, P = 0.028; OR = 0.46, P = 0.053; OR = 0.42, P = 0.037, respectively). Moreover, social activity participation played a mediating role in the association between exposure to earthquakes in adolescence and later-life depressive symptoms. ConclusionsWe observed a lower risk of depressive symptoms in later life in survivors of earthquake exposure during adolescence. Further, we found the mediating role of social participation in the association between earthquake exposure in adolescence and later-life depressive symptoms, which gives support for the posttraumatic growth (PTG) theory. Our findings imply that, in order to lower the risk of depression in later life following exposure to a natural disaster in adolescence, it is necessary to take into account the buffering effect of social participation.

Do earthquake survivors want to escape the threats of earthquakes and why?

Destructive earthquakes and the possibility of experiencing destructive earthquakes may cause people to move from their area to safer ones. However, despite high earthquake risk, people may not want to leave the area they reside for various reasons. The objective of this study was to investigate whether earthquake experience, earthquake insurance, satisfaction with city, self-efficacy, risk perception, social support, post-earthquake insecurity and price gouging was correlated with relocation willingness in an earthquake-prone area. Data were collected using a survey from 1114 people residing in Kocaeli (Türkiye), where a devastating earthquake occurred in 1999. 610 people who participated in the study were affected by this earthquake and 504 people were not affected. In order to better understand the impact of earthquake exposure on relocation willingness, ordinal logistic regression analyzes were performed separately for the earthquake affected and unaffected sample. The result showed that the relocation willingness of the unaffected participants was higher than the relocation willingness of the affected participants. People who were psychologically affected by the earthquake were more likely to relocate. Satisfaction with the city reduced the participants' relocation willingness mostly. The fear of earthquakes and perceived insecurity after a future earthquake increased all participants' relocation willingness. It is hoped that this study will guide scientists and disaster managers working in regions where destructive disasters may occur to improve strategies related to relocation policy and earthquake risk reduction.

UNITE Project: understanding neurocognitive impairment after trauma exposure–study protocol of an observational study in Christchurch, New Zealand

IntroductionOur previous research has demonstrated significant cognitive effects of earthquake exposure 2–3 years following the Canterbury earthquake sequence of 2011. Such impairment has major implications for a population trying to...

Earthquake exposure and schooling: Impacts and mechanisms

Natural disasters are a significant threat to human development. In this paper, we analyze the effects of being exposed to a strong earthquake during school age on schooling outcomes. We merge geolocated data about the intensity of the shock at the district level with individual information from the Indonesia Family Life Survey. The identification strategy exploits variation in exposure to the natural shock by birth cohort and district of residence, considering as the treated group individuals who were residing in affected districts while they were in school age. Earthquake exposure reduces years of schooling by somewhat less than one year and negatively affects the probability of completing compulsory education but does not alter the chances of enrolling into post-compulsory education. Falsification analysis and several robustness checks corroborate the causal interpretation of our findings. The analysis of the potential mechanisms indicates that induced migration and casualties occurring at the family level as a consequence of the earthquake do not seem to play a relevant role. However, damages in educational infrastructures do represent a relevant channel through which natural disasters harm human capital formation. Part of the overall impact of the earthquake represents a delay in schooling progression, but a substantial share of its effect consists in a permanent loss of human capital among affected individuals.

Cumulative stressful events and mental health in young adults after 10 years of Wenchuan earthquake: the role of social support

ABSTRACT Background: After a natural disaster, stressful events often continue to accumulate, affecting individuals in a different manner than the original disaster never occurred. However, few studies have examined these associations, the cumulative impacts of stressful events on mental health outcomes, and the role of social support. This study examined the prospective association between cumulative stressful events and mental health problems and the role of social support in young adults. Methods: 695 participants provided available data on earthquake exposure, childhood maltreatment, other negative life events, and social support at baseline. Depressive symptoms and posttraumatic stress disorder were assessed at baseline and 10 years after the earthquake (T10y). A cumulative stressful events index was used to evaluate the levels of cumulative stressful events. Linear regressions were used to explore the predictive effects. Results: Of 695 participants, 41.3%, 28.5%, and 7.9% reported one, two, and three stressful events, respectively. The associations between cumulative stressful events and mental health problems at T10y presented a dose–response pattern: those who experienced three events had the highest risk of mental health problems, followed by those who experienced two events and those who reported one event. Additionally, higher social support partially reduced the negative impact of cumulative stressful events on mental health. Conclusions: Cumulative stressful events are associated with mental health problems 10 years later in young earthquake survivors. Social support could reduce the negative impact, but its protective role disappears when stressful events accumulate at the highest level. These findings highlight the importance of assessing the cumulative impacts of stressful events and social support available to young disaster survivors and intervening to prevent worse mental health outcomes.

An examination of behavioural and emotional problems in children exposed prenatally to the 27F Chilean earthquake: findings from the ELPI cohort

PurposeAssociations between prenatal earthquake exposure and children’s mental health remain unclear. Moreover, there is a paucity of research using quasi-experimental statistical techniques to diminish potential selection bias. Thus, this study aimed to explore the impact of prenatal exposure to the Chilean earthquake of 2010 on children’s behavioural and emotional problems between 1½ and 3 years old using propensity score matching.MethodsParticipants included 1549 families from the Encuesta Longitudinal de la Primera Infancia cohort in Chile. Maternal reports using the Child Behaviour Checklist (CBCL) were used to assess behavioural and emotional problems between 1½ and 3 years old. Information on prenatal earthquake exposure was collected via maternal report. The Kernel matching estimator was used to compare the average treatment effects of children who were exposed to the earthquake compared to those who were not.ResultsFive of the seven CBCL outcomes were statistically significant after matching and adjustment for multiple testing, suggesting greater difficulties for exposed children which included emotional reactivity, anxious/depressed, sleep problems, attention problems, and aggression (mean difference of 0.69, 0.87, 0.73, 0.85, 3.51, respectively). The magnitude of the effect was small to medium.ConclusionFindings contribute to the potential causal inferences between prenatal earthquake exposure and increased behavioural and emotional problems in early childhood. Results suggest that in utero experiences may have long-term consequences for infants’ well-being, supporting the need for specific interventions in pregnancy after natural disasters.

Effect of acupuncture on patients with major psychiatric disorder and related symptoms caused by earthquake exposure: Protocol for a scoping review of clinical studies.

Earthquakes have the greatest destructive effect among all natural disasters. Posttraumatic stress disorder (PTSD), major depressive disorder (MDD), and anxiety disorder (AD) are major psychiatric disorders (MPD) that can be triggered by exposure to earthquakes. Conventional treatments such as pharmacological treatments have several limitations. Acupuncture therapy as a complementary integrative medicine may be an effective alternative treatment for these limitations. This study aimed to identify the status of the clinical evidence regarding acupuncture therapy for earthquake survivors with MPD. We will follow the scoping review process as previously described. The study question is as follows: "Which types of clinical research designs, study types, study durations, adverse events, and clinical outcomes have been reported regarding acupuncture therapy for MPD in earthquake survivors?" Medline, Excerpta Medica dataBASE, Cochrane Central Register of Controlled Trials, Web of Science, Scopus, Allied and Complementary Medicine Database, Cumulative Index to Nursing and Allied Health Literature, PsycArticles databases, and Chinese, Korean, and Japanese databases will be comprehensively searched electronically from their inception to November 2022. Data from the included studies will be collected and descriptively analyzed in relation to our research question. We will collate, synthesize, and summarize the extracted data according to the analytical framework of a scoping review. The protocol will conform with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extensions of Scoping Reviews to ensure the clarity and completeness of our reporting in the whole phase of the scoping review (Protocol registration: https://osf.io/wfru7/). The findings of this scoping review will provide fundamental data that will help researchers identify appropriate research questions and design further studies on the use of acupuncture for MPD management in earthquake survivors. These results will be helpful for developing disaster site-specific research protocols for future clinical trials on this topic.