Stressful Life Events Research Articles

A meta-analysis of genome-wide studies of resilience in the German population.

Resilience is the capacity to adapt to stressful life events. As such, this trait is associated with physical and mental functions and conditions. Here, we aimed to identify the genetic factors contributing to shape resilience. We performed variant- and gene-based meta-analyses of genome-wide association studies from six German cohorts (N = 15822) using the 11-item version of the Resilience Scale (RS-11) as outcome measure. Variant- and gene-level results were combined to explore the biological context using network analysis. In addition, we conducted tests of correlation between RS-11 and the polygenic scores (PGSs) for 12 personality and mental health traits in one of these cohorts (PROCAM-2, N = 3879). The variant-based analysis found no signals associated with resilience at the genome-wide level (p < 5 × 10-8), but suggested five genomic loci (p < 1 × 10-5). The gene-based analysis identified three genes (ROBO1, CIB3 and LYPD4) associated with resilience at genome-wide level (p < 2.48 × 10-6) and 32 potential candidates (p < 1 × 10-4). Network analysis revealed enrichment of biological pathways related to neuronal proliferation and differentiation, synaptic organization, immune responses and vascular homeostasis. We also found significant correlations (FDR < 0.05) between RS-11 and the PGSs for neuroticism and general happiness. Overall, our observations suggest low heritability of resilience. Large, international efforts will be required to uncover the genetic factors that contribute to shape trait resilience. Nevertheless, as the largest investigation of the genetics of resilience in general population to date, our study already offers valuable insights into the biology potentially underlying resilience and resilience's relationship with other personality traits and mental health.

Using latent transition analysis to evaluate the impact of perceived threats on emotional and behavioral development.

This study used latent transition analysis to examine the stability and change in perceived threats in youth's primary social contexts-neighborhoods, schools, and families-and associations with emotional and behavioral problems when youth transitioned from childhood to adolescence. The sample included 8208 racially and ethnically diverse youth enrolled in the Adolescent Brain Cognitive Development Study (47.4% female, Mage_Baseline = 9.83, Mage_Timepoint3 = 11.99). Results revealed that while perceived threats in youth's neighborhoods were considerably stable, perceived threats in youth's families fluctuated in relation to stressful life events. Further, subgroups of youth characterized by elevated perceived threat experiences in different contexts showed differential associations with emotional and behavioral problems. Overall, findings highlight the importance of considering the stability of perceived threats to direct appropriate interventions.

Stressful Life Events Among Women Suffering Homelessness and Prostitution in Spain.

The aim of the study was to analyze the differences in suffering stressful life events (SLE) among women experiencing homelessness who had or had not been in prostitution. Data were collected from a sample of 135 women experiencing homelessness in Madrid. A total of 81% of the women interviewed had never been in prostitution, while 19% had been in prostitution at some point in their lives. Participants were recruited from shelters, drop-in centers, and public spaces. The information was collected using a structured interview. The results showed that women experiencing homelessness who had been in prostitution suffered a greater number of SLE, both in childhood and adolescence and throughout life. The interviewed who had been in prostitution were between two and nine times more likely to have experienced during their childhood and adolescence violence in their family, as well as to have run away from home, experienced abuse, attempted suicide, and used drugs excessively. Furthermore, during their lifetime, the interviewed who had been in prostitution were between two and four times more likely to suffer from serious physical and mental health issues, excessive alcohol consumption, intimate partner violence, physical violence from others, suicide attempts, police reporting, and unwanted pregnancies. Additionally, they were four to six times more likely to have been sexually assaulted or convicted/imprisoned for a crime, seven times more likely to have been arrested, and a striking 32times more likely to have used drugs excessively.

Stressful life events and tinnitus : Reflections and speculations.

The role of life events has not been extensively studied in the context of tinnitus. There is, however, evidence about the psychological impact of tinnitus and about the influence of psychological processes as mediators of the tinnitus experience. On the basis of this evidence, the possibility that stressful life events can act as atrigger for tinnitus is discussed; although the evidence is fragmentary and indirect, the possibility cannot be discounted. It is argued that the onset of tinnitus and the associated clinical encounters can constitute an acute stressful life event, and the ongoing experience of tinnitus can be regarded as achronic stressful life event. Interactions between ongoing tinnitus and other life events are discussed. Possible mechanisms in terms of stress influencing predictive processing and signal detection judgments are considered.

The Human Connectome Project of adolescent anxiety and depression dataset

This article describes primary data and resources available from the Boston Adolescent Neuroimaging of Depression and Anxiety (BANDA) study, a novel arm of the Human Connectome Project (HCP). Data were collected from 215 adolescents (14–17 years old), 152 of whom had current diagnoses of anxiety and/or depressive disorders at study intake. Data include cross-sectional structural (T1- and T2-weighted), functional (resting state and three tasks), and diffusion-weighted magnetic resonance images. Both unprocessed and HCP minimally-preprocessed imaging data are available within the data release packages. Adolescent and parent clinical interview data, as well as cognitive and neuropsychological data are also included within these packages. Release packages additionally provide data collected from self-report measures assessing key features of adolescent psychopathology, including: anxious and depressive symptom dimensions, behavioral inhibition/activation, exposure to stressful life events, and risk behaviors. Finally, the release packages include 6- and 12-month longitudinal data acquired from clinical measures. Data are publicly accessible through the National Institute of Mental Health Data Archive (ID: #2505).

The role of mindfulness in stress, productivity and wellbeing of foundation year doctors: a mixed-methods feasibility study of the mindful resilience and effectiveness training programme

BackgroundMedical Foundation Year (FY) doctors demonstrate greater psychological distress compared with the general population and other student groups. This feasibility study investigated FY doctors’ perceptions of mindfulness and the impact of a mindful resilience and effectiveness training (MRET) programme on stress, wellbeing, and performance.MethodsMixed-methods study utilising a questionnaire (study 1, N = 144) and a pre-post analysis design of MRET programme (study 2, N = 13), along with focus groups (N = 7).ResultsIn study 1 28.5% of FY’s reported using mindfulness. All five mindfulness facets were significantly, and positively, associated with mental wellbeing (p < 0.05). Acting with awareness (AA) and non-reactivity (NR) were significantly, positively associated with a challenge responses to stress (p < 0.05). Threat and loss appraisals were negatively associated with AA, NR, and non-judging (p < 0.01). Perceived productivity was positively associated with mindfulness facets: describing, AA, and NR (p < 0.001). In study 2, there were significant increases in wellbeing and mindfulness facets observing, describing, AA, and NR, and threat appraisals decreased (p < 0.05). The main themes identified across the focus group included Reframed Mindset, Values-Based Action, Embodied Leadership and Pedagogy.ConclusionsThere exists a relationship between mindfulness, psychological wellbeing, and performance in FYs. The MRET prorgamme improved psychological wellbeing and reduced threat appraisals. Future work could focus resources on enhancing the skills of AA and NR, as this may be sufficient to bring about meaningful improvements in wellbeing, percieved productivity and cognitive reappraisal of stressful life events.

Exploring the Link Between Somatic and Psychiatric Symptoms in Patients With Medically Unexplained Physical Symptoms: A Cross-Sectional Survey From North India.

The association between somatic symptoms and psychiatric co-morbidities remains unexplored among patients with medically unexplained physical symptoms (MUPS) in Asian populations. This study aims to bridge this gap by investigating psychiatric morbidities and their determinants among patients presenting with MUPS in an Indian setup. This cross-sectional study, conducted in the outpatient department (OPD) of a tertiary care hospital in India, assessed 200 patients diagnosed with MUPS. Assessment tools, such as the Somatic Symptom Scale (SSS-8), Presumptive Stressful Life Event Scale (PSLES), and Depression, Anxiety, and Stress Scale (DASS), were administered to collect data. The study examined patients (mean age 36.51±9.82 years), predominantly comprising females (67.5%), presenting with MUPS. Common presenting symptoms were general (96.3%), musculoskeletal pain (91.7%), and gastrointestinal symptoms reported by 81.7%. Medium somatic symptom severity (57%) was more prevalent in females. Prevalent psychiatric co-morbid conditions included depression (mild: 22.0%, moderate: 26.5%), moderate anxiety (41.5%), and moderate stress (26%). Strong associations were observed between the SSS-8score and depression (χ²(6, N = 200) = 49.26, p < 0.001), anxiety (χ²(8, N = 200) = 37.90, p < 0.001), stress (χ²(6, N = 200) = 44.45, p < 0.001), and the experience of stressful life events (χ²(3, N = 200) = 6.5, p < 0.05). The study indicates an intertwined association between MUPS and psychiatric disorders. Individuals with MUPS commonly experience heightened anxiety and depression, emphasizing the complex interplay between somatic symptoms and emotional well-being. Consideration of environmental and social factors may be crucial for a comprehensive understanding.

Unraveling the Tapestry of Depression: A Cross-Sectional Study.

An often-occurring and severely disabling mental illness that mostly affects older people living in urban slums is depression. Developing successful therapies requires an understanding of the complex interactions between the different factors that contribute to depression in this susceptible population. This study aimed to find the prevalence of depression and identify the factors associated with depression in the geriatric population aged ≥60 years in the study area during the study period in Gujarat, India. This study was carried out among 450 participants aged ≥60 years. Face-to-face interviews and standardized assessment tools, including the Geriatric Depression Scale (GDS) for depression and the Mini-Cog test for cognitive impairment, were used to collect data on depression levels, sociodemographic characteristics, behavioral factors, medical conditions, life events, and psychiatric history. Statistical analyses, including chi-squared tests, were performed to assess the associations. Significant associations were found between various factors and depression levels, which were lower education (11.11% severe depression among non-literate vs. 2.11% among literate, p<0.001)and widowhood (11.56% severe depression among widowed vs. 4.53% among married, p<0.001), which were linked to higher depression severity. Behavioral risk factors like short sleep duration (<6 hours at night: 21.71% severe depression, p<0.001), tobacco snuffing (16.24% severe depression, p<0.001), and lack of physical activity (28.71% severe depression, p<0.001) were strongly associated with increased depression. Medical conditions such as hypertension (10.36% severe depression, p<0.001) and stressful life events like family conflicts (16.67% severe depression, p<0.001) exhibited strong associations. A personal history of depression (38.82% severe depression, p<0.001) was a potent predictor. The study highlights the multifaceted nature of depression in the geriatric population of the study area, underscoring the necessity of all-encompassing measures to tackle the recognized possible risk factors. The results provide valuable insights for developing targeted prevention strategies, healthcare policies, and support systems to enhance the mental well-being of this vulnerable population.

Factors Influencing the Use of Tobacco Among Youth in Low-Income, Lower-Middle-Income, and Upper-Middle-Income Countries: A Systematic Review.

The use of tobacco is a significant global public health issue. According to the World Health Organization, tobacco use is a considerable risk factor for many diseases and causes more than 8 million deaths per year, with a disproportionate impact on low- and middle-income countries. Therefore, this systematic review was conducted to identify the factors influencing tobacco use among youth in low-income, lower-middle-income, and upper-middle-income countries. Study Design: A system review. The review followed the PRISMA guidelines, and the protocol was registered on PROSPERO (CRD42023430552). Several data sources were utilized, including PubMed, Scopus, ScienceDirect, MEDLINE, CINAHL, and ProQuest, and cross-sectional data from participants aged 15‒24 underwent investigation. Original full-text articles have been published between 2015 and 2023. Out of the 2892 studies, 20 were included in this review after two reviewers confirmed the eligibility criteria. The average age of the participants was (mean±standard deviation: 19.45±1.686). Most studies were conducted in lower-middle and upper-middle-income countries. Frequently reported influences were at the individual and social levels, including demographic, economic, and psychological parameters, attitude and knowledge, individual behavioral factors, parental education, family member tobacco use, stressful life events, and social networks. At the environmental level, factors included secondhand smoke exposure, community context, media channels, and access to tobacco. The findings demonstrated a significant association between youth tobacco use and individual-, social-, and environmental-level factors. Consequently, specific interventions targeting these factors should be deployed to mitigate youth tobacco use in various socioeconomic settings.

Psychological autopsy study of suicides in farmers: Study from Kerala.

Though agricultural farming is considered a peaceful and healthy industry it has a high rate of mortality especially suicide. In India, 11.2% of suicides are reported in the farming sector. To identify the role of psychosocial factors leading to farmer's suicide in a farmer's dominant district of Kerala. One hundred and sixty-six successive suicides in Wayanad district and age, sex, marital status, and financial status matched normal controls residing in the same locality were evaluated and compared on psycho-social demographic variables, life events, and details of suicide. Significantly a greater number of victims were living separately, living in rented homes, had no own land for cultivation, migrated, had marital discord, and strained relationships with relatives. They had loans from private financial enterprises and single money persons, had past attempts, a family history of alcoholism, and highly stressful life events. The most frequent psychiatric diagnosis was alcohol dependence/abuse followed by depression. The majority committed suicide by hanging followed by insecticide poisoning. Intention to commit suicide was expressed by 38.5% and 30.2% were intoxicated at the time of attempt. The venue for the attempt was the own house in 75.7% of cases. This study suggests the following remedial measures to prevent farmers' suicides. Expert advice to manage financial constraints like availing loans, crop insurance, etc. Guidance from the agricultural department for cost-effective cultivation. Early identification and treatment of psychiatric disorders.

Impact of the COVID-19 pandemic on suicide-related risk among college students: A cross-sectional analysis

This study aimed to investigate the factors contributing to suicide-related risks among college students during a stressful life event, specifically the COVID-19 pandemic. Employing a Classification and Regression Tree (CART) model, data from 808 college students were analyzed, revealing key interactions and predictive insights into suicide-related risk. Results indicated that preexisting depression emerged as the most significant risk factor, followed by anxiety, discrimination, stress, and younger age. These findings emphasize the importance of preventive measures targeting depression and anxiety to enhance college students’ mental health and well-being. The study’s implications extend to informing future research, practical interventions, and policy-making efforts addressing suicide-related risk among college students.

Suicidal ideation in medical students of Hebei province: prevalence and associated factors.

This study investigated the prevalence of suicidal ideation (SI) among Chinese medical students and its associated risk factors. A total of 6643 medical students (2383 males/4260 females) were recruited from a medical college in Hebei Province, China. Demographic data were collected via a self-administered questionnaire. The Childhood Trauma Questionnaire Short Form (CTQ-SF) was used to evaluate childhood maltreatment (CM), and the Adolescent Self-Rating Life Events Checklist (ASLEC) was used to evaluate the stressful life events. Suicidal ideation was assessed using the Beck Scale for Suicide Ideation (BSSI). Univariate and multivariate logistic regression models were used to analyze the factors affecting SI. The prevalence of SI in medical students was 11.5% (763/6643). Multivariate logistic regression analysis revealed that SI was significantly associated with younger age, a female sex, being lovelorn, being introverted, experiencing CM during childhood, and experiencing stressful life events within the past 12 months. Of the five subtypes of CM, emotional abuse may have the strongest effect on SI (OR=2.76, 95% CI: 1.72-4.42). The joint effects of CM and stressful life events were significantly associated with an increased risk of SI (OR=5.39, 95% CI: 4.15-6.98). The prevalence of SI among medical students is high, and medical students who have experienced CM and stressful life events have a higher tendency towards SI. Screening for both CM and stressful life events may be an effective way of identifying individuals at high risk of SI.

Stressful Life Events and Depression in Adolescents from Low-Income Neighborhoods: An Investigation of the Role of Working Memory Capacity and Distress Intolerance

Stressful Life Events and Depression in Adolescents from Low-Income Neighborhoods: An Investigation of the Role of Working Memory Capacity and Distress Intolerance

Posttraumatic stress disorder and its associated factors among people living in Dabat district, northwest Ethiopia.

The conflict between the Ethiopian government and the Tigray People's Liberation Front (TPLF) in the Dabat district of Ethiopia has led to significant civilian casualties, instances of rape, sexual abuse, and property theft. These traumatic events contribute to the development of post-traumatic stress disorder (PTSD) among local residents. However, there is currently no available data on the prevalence of PTSD and its associated factors in this region. This study seeks to fill this gap by assessing PTSD prevalence and identifying related factors among residents of the war-affected Dabat district in northwest Ethiopia. A community-based correctional study was conducted in the Woken and China kebeles of Dabat district, northwest Ethiopia, spanning from July 13 to September 19, 2023. A total of 410 participants were selected using systematic random sampling, making a 100% response rate. The study utilized an interviewer-administered questionnaire, which included the Post-Traumatic Stress Disorder Checklist (PCL-5) to assess PTSD. The research investigated the association between PTSD and various demographic and psychosocial characteristics using both bivariate and multivariable binary logistic regression analyses. Statistical significance was set at a P-value of 0.05. The majority of participants in the study were male (62%) with a mean age of 33 ( ± 1.67) years. The overall prevalence of PTSD was 30.7% (95% CI: 26.6-35.10). Multivariable logistic regression analysis identified several factors significantly associated with PTSD: symptoms of depression (AOR=3.5; 95% CI: 1.13-6.89), age between 45 and 67 years (AOR=1.68; 95% CI: 1.04-5.78), experiencing stressful life events (AOR=1.63; 95% CI: 1.05-7.86), experiencing sexual abuse or rape (AOR=1.53; 95% CI: 1.07-6.75), chewing khat (AOR=1.48; 95% CI: 1.08-4.56), being female (AOR=1.43; 95% CI: 1.13-3.67), and having an income of 34.6 USD (AOR=1.28; 95% CI: 1.07-4.67). This study reported that the prevalence of PTSD was high. As a result, the study suggested that governments and other stakeholders should be involved in implementing efficient interventions and quick measures to mitigate the effects of war on mental health following the conflict. The government and nongovernmental organizations were also advised by these studies to continue providing humanitarian assistance, which should include access to food, clean water, clothing, shelter, and education. This study also suggested that people living in conflict zones should be legally protected from rape, sexual abuse, arson, detention without cause, and kidnapping.

The Impact of Stressful Life Events on Centralized Pain and Pain Intensity: A Combined Model Examining the Mediating Roles of Anger and Perceived Injustice Among Racially Minoritized Adults With Chronic Pain

Stressful life events are highly associated with chronic pain. Yet, research is needed to identify the psychological mechanisms that link life adversity and pain, especially studies that test comprehensive models, recruit racially diverse samples, and measure varied pain-related symptoms. This study examined the relationship between stressful life events and pain in a racially diverse sample and tested the potential mediating roles of both anger and perceived injustice. Both centralized pain symptoms and pain intensity were the outcomes. Analyses consisted of 2 cross-sectional, mediation models among 673 adults with self-reported chronic pain who were racially diverse (Black: n = 258, Latine: n = 254, Asian American: n = 161). The results indicated a positive relationship between stressful life events and centralized pain symptoms (b = 2.53, P < .001) and pain intensity (b = .20, P < .001). In parallel mediation analyses, anger (b = .91, 95% CI = .67, 1.17) and perceived injustice (b = .86, 95% CI = .64, 1.11) acted as partial mediators on centralized pain symptoms. Also, anger (b = .05, 95% CI = .03, .08) and perceived injustice (b = .11, 95% CI = .08, .14) acted as full mediators on pain intensity. The combined psychosocial variables accounted for 51% of centralized pain symptoms and 26% of pain intensity. The findings suggest that psychosocial factors are significantly associated with pain outcomes. Future research is needed to investigate exposure to adversity in life, anger, and perceived injustice together as psychosocial mechanisms of pain symptoms. PerspectiveAmong racially minoritized adults with chronic pain, this article presents empirical evidence that stressful life events, anger, and perceived injustice are associated with centralized pain symptoms and pain intensity. This could guide psychological intervention to focus on anger and perceived injustice, especially when addressing centralized pain.

Applying Adverse Childhood Experience (ACE) Screening in Adolescent Inpatient Mental Health

ABSTRACT This quality improvement project aimed to implement screening for adverse childhood experiences (ACEs) and other related life stressors in inpatient adolescent psychiatry and to assess their relationship with mental health clinical and quality indicators. The project was conducted in a 25-bed adolescent inpatient unit in Los Angeles County from 2022 to 2023. The Pediatric ACEs and Related Life Events Screener (PEARLS) was used for systematic ACE screening. ACE screening results, demographic and clinical data, youth perceptions of trauma-informed care, new PTSD diagnoses, and length of hospitalization were collected throughout the project period. Linear and logistic regression models were used to examine the relationship between ACE scores, stressful life events, and outcome measures. The sample included 103 adolescents admitted for a psychiatric emergency. Most patients were girls (75.7%), and 94% had at least one ACE. The average length of stay was 6.4 days, and 30% of youth received a new diagnosis of PTSD during hospitalization. Higher ACE scores were associated with increased odds of a new PTSD diagnosis. Sexual abuse and death of a parent/caregiver were the only individual items associated with new PTSD diagnosis. This quality improvement project implementing ACE screening in inpatient adolescent psychiatry demonstrated a high prevalence of ACEs among the target population and the need for trauma-informed care. Our findings contribute to the growing efforts to address ACEs and improve the quality of trauma-informed care in child-serving systems.

Impact pathways of personality and psychosocial stress on depression among adult community residents in China: a fuzzy-set qualitative comparative analysis.

Depression is a common mental illness with a high prevalence rate and is a significant contributor to the global burden of diseases. Various factors are associated with depression, and its etiology is complex. Instead of focusing on single-factor effects, this study aimed to explore a combination of high-risk factor sets for depression among adult community residents. We conducted a cross-sectional survey in Shenzhen, China, from January 2021 to March 2021. A simple sampling method was used to enroll participants. A total of 1,965 adult residents completed the survey and were assessed using the Patient Health Questionnaire-9 (PHQ-9), the Eysenck Personality Questionnaire-Revised Short Scale for Chinese (EPQ-RSC), and the Psychosocial Stress Survey for Groups (PSSG). The fuzzy-set qualitative comparative analysis method was used to explore the high-risk factor sets for depression among adult community residents. The prevalence of depression among the surveyed adult residents in Shenzhen was 6.36%. The mean scores of PHQ-9 were higher among women and unmarried residents. The combination of low extroversion (e) and high neuroticism (N) in personality traits, along with high scores for life events (V), negative emotional responses to events (G), positive emotional responses to events (O), and positive coping styles to events (I) (denoted as e*N*V*G*O*I) constituted a high-risk factor set for depression. The overall consistency was 0.843, and the overall coverage was 0.330. Our study suggested that stressful life events together with personality traits including neuroticism and introversion serve as crucial factors for depression among adult community residents, regardless of the coping strategies they adopt. This study provides data for developing comprehensive interventions such as regulating neuroticism and introversion levels and reducing stressors to prevent the occurrence of depression among adult community residents.

SUICIDE IDEATION: AGE AND CORRELATES AMONG UNIVERSITY STUDENTS IN NYANZA REGION, KENYA

Suicidal behaviors have been on the rise among university students in the recent past. The aim of this paper was to examine suicide ideation in relation to age category and correlates among university students in the Nyanza region with the aim of preventing occurrences of completed suicide. The objectives of the study were to determine the difference in age category in relation to suicide ideation and to examine the correlates of suicide ideation. The study was based on the Three Step Theory of Suicide (3ST) by Klonsky, May and Saffer. The research design employed was a correlational research design. Purposive sampling was used to select four public universities from the Nyanza region as well as university counsellors. Stratified sampling was thereafter used to select undergraduate students depending on their year of study. Simple random sampling was finally used to select 1477 students from the four universities with the guidance of a sample size table developed by Krejcie and Morgan (1970). Student questionnaires, interview schedules as well as counseling records were used to collect data. Data analysis was done using Statistical Package for Social Sciences (SPSS V20). Descriptive statistics, including frequencies and percentages, were used. Quantitative data was thereafter analyzed using chi-square and linear regression at a .05 level of significance, and qualitative data was analyzed using themes. The study findings revealed that suicide ideation was not related to the age category of the students. The results from linear regression analysis indicated that sexual abuse, romantic break up, alcohol addiction, HIV/AIDS, elections and cyber suicide are predictors of suicide ideation, while financial crisis and COVID-19 are not predictors of suicide ideation. The study recommends that the ratio of student to counsellor at the university should be increased to allow for easy access to counselling services. The study also recommends that during orientation, the counselling department should create awareness of some of the stressful life events students are likely to encounter on campus and equip them with coping skills, as well as encourage them to visit the counselling department whenever they feel like talking to someone.&lt;p&gt; &lt;/p&gt;&lt;p&gt;&lt;strong&gt; Article visualizations:&lt;/strong&gt;&lt;/p&gt;&lt;p&gt;&lt;img src="/-counters-/soc/0784/a.php" alt="Hit counter" /&gt;&lt;/p&gt;

Examining the association of familial and social stress, trauma, and support on mood, anxiety, and behavioral symptoms and diagnoses in youth at risk for bipolar disorder and controls

IntroductionYouth with a family history of bipolar disorder (At-Risk) have a higher risk of developing psychiatric disorders and experiencing environmental stressors than youth without such family history (Control). We studied the differential associations of familial and environmental factors on developing psychiatric diagnoses and symptoms, in At-Risk and Control youth. MethodsAt-Risk and Control youth (N = 466, ages 9–22) were systematically assessed for severity of symptoms, psychiatric diagnoses, and self-reported measures of stress and social support. We tested the association of family history and measures of stress or support with symptom severity and diagnoses. ResultsAt-Risk youth had higher symptom severity scores and were more frequently diagnosed with psychiatric disorders (all p values < 0.001). When predicting mood symptom severity, family history had an interaction effect with stressful life events (p < 0.001) and number of distinct traumatic events (p = 0.001). In multivariate models, At-Risk status predicted anxiety disorders (OR = 2.7, CI 1.3–5.4, p = 0.005) and anxiety severity (Coefficient = 0.4, CI 0.2–0.7, p < 0.001) but not mood or behavioral disorder diagnoses or severity. LimitationsMeasures of stress and social support were based on self-report. Not all participants had passed through the period of risk for developing the outcomes under study and the follow up period was variable. We could not fully study the differential impact of physical or sexual abuse due to low frequency of occurrence in controls. ConclusionAt-Risk youth exhibit more severe mood symptoms compared to Controls when exposed to similar levels of stress or trauma. At-Risk youth are also more prone to develop anxiety which may be a precursor for bipolar disorder.

Polygene by environment interactions predicting depressive outcomes.

Depression is a major public health problem with a continued need to uncover its etiology. Current models of depression contend that gene-by-environment (G × E) interactions influence depression risk, and further, that depression is polygenic. Thus, recent models have emphasized two polygenic approaches: a hypothesis-driven multilocus genetic profile score (MGPS; "MGPS × E") and a polygenic risk score (PRS; "PRS × E") derived from genome-wide association studies (GWAS). This review for the first time synthesizes current knowledge on polygene by environment "P × E" interaction research predicting primarily depression-related outcomes, and in brief, neurobiological outcomes. The "environment" of focus in this project is stressful life events. It further discusses findings in the context of differential susceptibility and diathesis-stress theories-two major theories guiding G × E work. This synthesis indicates that, within the MGPS literature, polygenic scores based on the serotonin system, the HPA axis, or across multiple systems, interact with environmental stress exposure to predict outcomes at multiple levels of analyses and most consistently align with differential susceptibility theory. Depressive outcomes are the most studied, but neuroendocrine, and neuroimaging findings are observed as well. By contrast, vast methodological differences between GWAS-based PRS studies contribute to mixed findings that yield inconclusive results.