Social capital and suicide in 11 European countries: an ecological analysis

Social prescribing for suicide prevention: a rapid review

This rapid review delves into the realm of social prescribing as a novel approach to suicide prevention by addressing the social determinants of health. Through an exploration of various databases including MEDLINE, PsychInfo, WILEY, and Sage, a total of 3,063 articles were initially identified as potentially relevant to the research. Following a meticulous screening process, 13 articles were included in the final review, shedding light on the potential effectiveness and impact of social prescribing interventions on suicide prevention. Key findings indicate the need for additional monitoring and support for individuals at risk of suicide, emphasising warm referrals and sustained connections after referral to enhance the efficacy of social prescribing models. The review also highlights the importance of social capital and trust among vulnerable populations, underscoring the significance of community-based referrals in suicide prevention initiatives. Overall, this review identifies the potential of social prescribing as a valuable tool in mitigating suicide risk factors and promoting mental health and wellbeing in diverse populations.

The social determinants of mental health and disorder: evidence, prevention and recommendations

People exposed to more unfavourable social circumstances are more vulnerable to poor mental health over their life course, in ways that are often determined by structural factors which generate and perpetuate intergenerational cycles of disadvantage and poor health. Addressing these challenges is an imperative matter of social justice. In this paper we provide a roadmap to address the social determinants that cause mental ill health. Relying as far as possible on high-quality evidence, we first map out the literature that supports a causal link between social determinants and later mental health outcomes. Given the breadth of this topic, we focus on the most pervasive social determinants across the life course, and those that are common across major mental disorders. We draw primarily on the available evidence from the Global North, acknowledging that other global contexts will face both similar and unique sets of social determinants that will require equitable attention. Much of our evidence focuses on mental health in groups who are marginalized, and thus often exposed to a multitude of intersecting social risk factors. These groups include refugees, asylum seekers and displaced persons, as well as ethnoracial minoritized groups; lesbian, gay, bisexual, transgender and queer (LGBTQ+) groups; and those living in poverty. We then introduce a preventive framework for conceptualizing the link between social determinants and mental health and disorder, which can guide much needed primary prevention strategies capable of reducing inequalities and improving population mental health. Following this, we provide a review of the evidence concerning candidate preventive strategies to intervene on social determinants of mental health. These interventions fall broadly within the scope of universal, selected and indicated primary prevention strategies, but we also briefly review important secondary and tertiary strategies to promote recovery in those with existing mental disorders. Finally, we provide seven key recommendations, framed around social justice, which constitute a roadmap for action in research, policy and public health. Adoption of these recommendations would provide an opportunity to advance efforts to intervene on modifiable social determinants that affect population mental health.

Contextual factors associated with country-level suicide mortality in the Americas, 2000-2019: a cross-sectional ecological study

Background

The suicide mortality rate in the Region of the Americas has been increasing, while decreasing in all other World Health Organization regions; highlighting the urgent need for enhanced prevention efforts. Gaining a better understanding of population-level contextual factors associated with suicide may aid such efforts. We aimed to evaluate the contextual factors associated with country-level, sex-specific suicide mortality rates in the Region of the Americas for 2000-2019.

Methods

Annual sex-specific age-standardized suicide mortality estimates were obtained from the World Health Organization (WHO) Global Health Estimates database. To investigate the sex-specific suicide mortality rate trend over time in the region, we performed joinpoint regression analysis. We then applied a linear mixed model to estimate the effects of specific contextual factors on the suicide mortality rate across countries in the region over time. All potentially relevant contextual factors, obtained from the Global Burden of Disease Study 2019 covariates and The World Bank, were selected in a step-wise manner.

Findings

We found that the mean country-level suicide mortality rate among males in the region decreased as health expenditure per capita and the proportion of the country with a moderate population density increased; and increased as the death rate due to homicide, prevalence of intravenous drug use, risk-weighted prevalence of alcohol use, and unemployment rate increased. The mean country-level suicide mortality rate among females in the region decreased as the number of employed medical doctors per 10,000 population and the proportion of the country with a moderate population density increased; and increased when relative education inequality and unemployment rate increased.

Interpretation

Although there was some overlap, the contextual factors that significantly impacted the suicide mortality rate among males and females were largely different, which mirrors the current literature on individual-level risk factors for suicide. Taken together, our data supports that sex should be considered when adapting and testing suicide risk reduction interventions, and when developing national suicide prevention strategies.

Funding

This work received no funding.

The Dynamic Relationship Between Social Capital and Suicide Rates

Background: Suicide is an important public health concern worldwide. Among various factors, social capital has been suggested to be an effective factor to prevent and reduce suicide. Aims: The purpose of this study was to investigate the association between social capital and suicide rates in Seoul, South Korea, using panel data from 2005 to 2018 at the administrative-district level. Methods: Data for the current study were obtained from Seoul Statistics. The within estimator and the system generalized methods of moments estimator were used. Results: The results showed that there was an inverse association between community facility and suicide rates. This result remained the same even after considering the dynamic relationship between social capital and suicide rates (B = -0.57, 95% CI: -1.10, -0.04) while adjusting for dynamic panel bias. A 10% increase in community facility per 1,000 population was associated with 5.2% reduction in age-standardized suicide rates per 100,000 population. Limitations: In this study, only a structural dimension of social capital was utilized due to the lack of available data. Conclusion: The results indicate that facilitating opportunities for social interactions and community lives has a potential to prevent and reduce suicide.

The association of social capital with depression and quality of life in school-aged children

Social capital is an important factor that affects mental health. The purpose of this study was to examine the relationship between social capital and depression and between social capital and quality of life (QoL) in children in elementary and junior high school and to examine how this relationship differs in relevant patterns at both the individual- and school-level. The study was conducted in all elementary and junior high schools in a single municipality; the subjects consisted of 3,722 elementary school and 3,987 junior high school students (aged from 9 to 15). A multilevel linear mixed effect model analysis revealed that all three subscales of social capital were associated with depression and QoL at the individual-level: The school social capital at the individual-level showed the strongest association with depression and QoL. We also found that some of social capital at the school-level was associated with depression and QoL. An interactive effect was observed between educational stage (elementary and junior high) and some of social capital subscales. Specifically, the inverse association between school social capital and depression was stronger among the junior high students, while the positive association between school and neighborhood social capital and QoL was stronger among the elementary students. These interactions suggest that social capital impacts depression and QoL differently in elementary and junior high students. These findings suggest that the degree of association of social capital domains differs in mental health among the educational stage.

How Worries about Interpersonal Relationships, Academic Performance, Family Support, and Classmate Social Capital Influence Suicidal Ideation among Adolescents in Japan

Suicide is an important public health issue for adolescents. To investigate the risk and protective factors for adolescent suicide, a cross-sectional questionnaire-based survey was conducted at a junior high school (n = 379) in Japan in 2018. After obtaining survey data, we conducted univariate and logistic regression analyses to test for associations between suicidal ideation and several factors, including worries (i.e., about school life, interpersonal relationships at school, family life, interpersonal relationships at home, and academic performance), perceived support from school staff and family members, and social capital. In this context, the existence of trustful relationships between classmates was used as indicators of social capital. The results showed that the prevalence of suicidal ideation was 10.5%. The risk of suicidal ideation was increased by worries about 1) interpersonal relationships at school, 2) interpersonal relationships at home, and 3) academic performance, but was decreased by social support from family members and trusting relationships. Further, the rate of suicidal ideation was higher among students who expressed all these three worries when compared to those who expressed two or fewer worries. In addition, looking at students who expressed all these three worries simultaneously, the rate of suicidal ideation was higher among those with lower levels of support from family members and fewer trustful relationships. Our results suggest that the prevention of adolescent suicide should include strategies for reducing worries about interpersonal relationships at school/home and academic performance while finding ways to enhance family support and classmate social capital.

Relationship Among Social Capital, Employment Uncertainty, Anxiety, and Suicidal Behaviors: A Chained Multi-mediator Mediation Modeling Analysis

OBJECTIVE

Social capital is a significant predictor of suicidal behaviors among Chinese rural migrants. However, the mechanism, including the impact of employment and mental health, has not been fully understood. This study aims to examine the complex relationships linking social capital to suicidal behaviors.

METHOD

Data were collected from a probability sample (n = 1,245) of rural migrants in Wuhan, China. Social capital was used to predict suicidal behaviors, with employment uncertainty as step 1 mediator and anxiety as step 2 mediator. Suicidal ideation and attempt were analyzed separately using a chained moderated mediation model. Years of migration was included as moderator in all models to control its confounding effect.

RESULTS

Of the total sample, 50.9% were male with mean age of 32.0 (SD = 7.8) years. The association between social capital and suicidal ideation was significantly mediated by employment uncertainty (indirect effect [95% CI] = -0.14 [-0.24, -0.04]), but not for suicidal attempt (-0.02 [-0.20, 0.15]). Anxiety significantly mediated the same association for both suicidal ideation (-0.19 [-0.37, -0.01]) and attempt (-0.20 [-0.40, -0.01]). The chained relationship from social capital to employment uncertainty, anxiety, and suicidal behaviors was also significant with indirect effect of -0.05 [-0.09, -0.01] for both suicidal ideation and attempt. Similar results were observed for bonding and bridging capital.

CONCLUSIONS

Social capital may exert an effect on suicidal behaviors through employment and mental health among rural migrants in China. Social capital-based suicide prevention must consider both employment and mental health problems to obtain better effects.HighlightsEmployment and anxiety mediate social capital-suicidal behavior relation.Bonding capital affects anxiety and bridging capital affects employment.There is a chained relation among social capital, employment, anxiety, and suicidal behaviors.

The Impact of Social Capital on Mental Health: Evidence from the China Family Panel Survey

The influence of social capital on mental health is a controversial topic. As some studies have pointed out, cognitive social capital significantly affects mental health but structural social capital does not. Using data from the China Family Panel Survey, this study measured social capital from social help, social trust, social networks, and social participation, and took regional average level of social capital as the instrumental variables, and applied a two-stage least squares regression. We found that the mental health of residents who trust and help each other is significantly higher than that of residents without trust and mutual help. When residents' efforts to maintain social networks increase, their mental health significantly improves. These results are robust. Furthermore, the impact of social capital on mental health was heterogeneous in terms of urbanicity, gender, age, and area. These results are helpful for making policies for promoting residents' mental health.

Emergency dispatches for suicide attempts during the COVID-19 outbreak in Okayama, Japan: A descriptive epidemiological study

Background

Hardships associated with the ongoing coronavirus disease 2019 (COVID-19) pandemic can affect mental health, potentially leading to increased risk of suicide. We examined the relationship between the COVID-19 outbreak and suicide attempts in Okayama, Japan using information from emergency dispatches.

Methods

This was a descriptive epidemiological study. We collected information on emergency dispatches in Okayama City and Kibichuo from March to August in 2018, 2019, and 2020 (n = 47,770 cases). We compared emergency dispatches and their demographic characteristics, especially focusing on suicide attempts, during these 3 years.

Results

The number of emergency dispatches in 2020 decreased compared with the previous 2 years, while the number and proportion of emergency dispatches related to suicide attempts increased. This increase was more pronounced among women and those aged 25–49 years. Among women aged 25–49 years, there was a cumulative total of 43 suicide attempts in 2018 and 2019 and 73 suicide attempts in 2020.

Conclusions

The number and proportion of emergency dispatches related to suicide attempts increased in 2020 compared with the previous 2 years, especially among women and those aged 25–49 years. This increase may be partly explained by hardships, such as economic losses or reduced social ties, during the COVID-19 outbreak.

The Interactive Effect of Social Capital and Duration of Migration on Suicidal Behaviors Among Rural-to-Urban Migrants in China: Evidence from a GIS/GPS-Assisted Probability Sample

Suicide for rural-to-urban migrants in China presents a challenge. Social capital as a modifiable factor is associated with suicidal behaviors at different levels for different populations. This study focuses on the social capital-suicidal behavior relationship among rural migrants with detailed social capital measures and their interaction with migration duration. Data were collected from a rural migrant sample in Wuhan, China. Outcome variable was reported suicidal ideation and attempts in the past 12 months. Social capital was measured using the Personal Social Capital Scale. Year of migration was measured as the number of years a subject migrated to the city. Multivariate logistic regression (coefficients [95%CIs]) was used for data analysis. Time of crossover for interaction was estimated as the year when the effect of social capital on a suicidal behavior revered from negative to positive. Study findings show a negative association between social capital and suicidal ideation (-1.48 [-2.86, -0.10]), but the association was not significant for suicidal attempts (-1.30 [-2.68, 0.08]) after considering the positive interaction between social capital and year of migration (0.11 [0.03, 0.19] for ideation and 0.11 [0.02, 0.19] for attempts). Similar effects were found for detailed social capital measures. The estimated time of crossover ranged from 7.0 to 14.8 years for different social capital measures. The findings of this study confirm the protective relationship between social capital and suicidal behaviors in the early years of migration among rural migrants. These findings inform suicide prevention among rural migrants by considering social capital during the first 7 to 15 years of migration.

Social capital and psychological distress during Colombian coronavirus disease lockdown

This study aimed to establish the association of low social capital (SC) with psychological distress indicators. A cross-sectional study was carried out using an online questionnaire that evaluated demographic variables, social capital, perceived stress related to coronavirus disease, depression risk, insomnia risk, and suicide risk. SC was taken as an independent variable, and symptoms indicating psychological distress were considered as dependent variables. A group of 700 adults aged between 18 and 76 years (M = 37, SD = 13) participated in the survey. Low SC was associated with depression risk (odds ratio [OR] = 2.00, 95% confidence interval [CI] = 1.34-2.97), elevated suicide risk (OR = 2.62, 95% CI = 1.40-4.91) high perceived stress related to coronavirus disease (OR = 2.08 95% CI, 1.15-3.76), and insomnia risk (OR = 2.42, 95% CI = 1.69-3.47). In conclusion, low CS was associated with indicators of psychological distress. SC is a community social resource that could help mitigate the quarantine impact of coronavirus disease amidst the Colombian population's psychological health.

Association between social capital and suicide ideation, plan and attempt among men living with HIV in China

BACKGROUND

Better understanding of the relationship between social capital and risk of suicide is essential for suicide prevention and control among people living with HIV (PLWH).

METHODS

Participants were 494 male PLWH recruited with a venue-based method from Wuhan in China. Data were collected using a self-reported questionnaire during November 2015 and January 2016. Social capital was measured using the short-version Personal Social Capital Scale. Multivariate logistic regression was used to assess the association between social capital and suicidal ideations post HIV+ diagnosis and in the past month, as well as suicide plan and attempt.

RESULTS

Scatter plots showed a nonlinear trend in the prevalence of the three suicide measures along with social capital. Logistic regression analyses stratified by quartiles of social capital indicated a significant nonlinear association between social capital and the risk of suicide. The estimated odds ratio [95% CI] of suicidal ideation was 0.87 [0.51.1.42], 0.68 [0.40, 1.14] and 0.24 [0.12, 0.46] for the second, third and fourth quartile of social capital scores respectively with the first quartile as the reference. Similar results were observed for suicidal ideation in the past month and suicidal plan/attempt.

CONCLUSIONS

Findings of this study suggest that social capital is only associated with lower suicidal ideation at very high levels of social capital. If verified with longitudinal data, this finding suggests an effective suicide prevention intervention among male PLWH must foster social capital to a level greater than average.

State- and County-Level Social Capital as Predictors of County-Level Suicide Rates in the United States: A Lagged Multilevel Study

From 1999 through 2017, age-adjusted suicide rates in the United States rose by 33% (from 10.5 to 14.0 per 100 000 population). Social capital, a key social determinant of health, could protect against suicide, but empirical evidence on this association is limited. Using multilevel data from the Centers for Disease Control and Prevention, we explored state- and county-level social capital as predictors of age-adjusted suicide rates pooled from 2010 through 2017 across 2112 US counties. In addition, we tested for causal mediation of these associations by state-level prevalence of depression. A 1-standard deviation increase in state-level social capital predicted lower county-level suicide mortality rates almost 2 decades later (0.87 fewer suicides per 100 000 population; P = .04). This association was present among non-Hispanic Black people and among men but not among non-Hispanic White people and women. We also found evidence of partial mediation by prevalence of depression. Our findings suggest that elevating state- and county-level social capital, such as through policy and local initiatives, may help to reverse the trend of rising suicide rates in the United States.

Small but protective social capital against suicide ideation in poor communities: A community-based cross-sectional study

Coupled with the lowest level of social connectedness, South Korea has the highest suicide rate among the Organization for Economic Co-operation and Development countries. A possible link between community and suicide is social capital imprinted in social connectedness. This study explores whether social capital is protective against suicide ideation in relation to the poverty level of communities, and whether the associations are specific to certain elements of social capital.A total of 908 participants were included to assess cross-sectional association of social capital at individual level with suicide ideation by comparing between poor (government-leased apartments) and non-poor communities (nongovernment-leased apartments). Logistic regression analyses were performed to examine various social capital dimensions in relation to suicide ideation.Suicide ideation was far higher among those living in the poor communities (poor communities 12%; non poor communities 6.3%) and the level of social capital was lower in the poor communities. Nevertheless, the protective effect of social capital, in particular, the cognitive dimension against suicide ideation was demonstrated only in the poor communities (eg, odds ratio = 0.27, 95% confidence interval: 0.12-0.58 for trust in the poor communities). Low income was significantly associated with suicide ideation only in the poor communities, but depression and resilience were associated with suicide ideation both in the poor and non-poor communities.To increase the reliability of the results, established measures based on relevant literature were utilized, but measures on bridging social capital and social network might have relatively low reliability.As to protection against suicide ideation, the extent of reliance on social capital was higher in poor communities than in non-poor communities, in particular, the cognitive dimension was likely to activate in this regard.

Self-stigma as a mediator between social capital and empowerment among people with major depressive disorder in Europe: The ASPEN study

Introduction:

Individual social capital has been recognized as having an important role for health and well-being. We tested the hypothesis that poor social capital increases internalized stigma and, in turn, can reduce empowerment among people with major depressive disorder (MDD).

Materials and methods:

This is a cross-sectional multisite study conducted on a sample of 516 people with MDD in 19 European countries. Structural Equation Models were developed to examine the direct and indirect effects of self-stigma and social capital on empowerment.

Results:

Social capital and self-stigma accounted for 56% of the variability in empowerment. Higher social capital was related to lower self-stigma (r = –0.72, P < 0.001) which, in turn, partially mediated the relationship between social capital and empowerment (r = 0.38, P < 0.001).

Conclusions:

Social capital plays a key role in the appraisal of empowerment, both directly and through the indirect effect mediated by self-stigma. In order to improve empowerment of people with MDD, we identify strategies to foster individual social capital, and to overcome the negative consequences related to self-stigma for attainment of life goals.

Call for new stories: Exploring the etiology of suicide in Iran (Causal layered analysis)

Background: Despite many studies on suicide, the causation remains ambiguous, and there is a necessity for new all-inclusive methodology. Causal layer analysis (CLA) is a relatively new technique to deeply explore the etiologies of suicide in Iran. Methods: Causal layered analysis (CLA) combines empirical, interpretative, critical, and action research methods in comprehensive hierarchical layers of causality, like an iceberg. Layers begin from the first observable layer called litany to the deeper underneath layers, including systemic, worldview, and metaphor. In the litany layer, the general appearance of suicide in Iran was extracted through published evidence. In the systemic layer, observed quantitative results of litany was interpreted based on the short-term historical facts by conducting 30 semi-structured interviews with experts. In the worldview layer, 40 deep interviews with suicide attempt cases, 10 focus-groups among adolescents, and 20 semi-structured interviews with nurses and experts were conducted. In the myth and metaphor layer, the Persian poetry of the last century was studied and suicide notes and stories were reviewed. Results: Three causal models of CLA 1 (self-burning of women as an objection to the closed society), CLA 2 (duality of parent's addiction- divorce), CLA 3 (suicide as a reaction to the identity crisis) were extracted. Conclusion: Macrohistorical changes such as war, urbanization, and modernity have confronted the new the new generation with distinctive and unexpected realities in life, which are not similar to their dreams and old stories. Suicide is a reaction to this silent inner battle between old metaphors and new realities.

Untethered lives: barriers to societal integration as predictors of the sexual orientation disparity in suicidality

PURPOSE

Despite increasing legal protections and supportive attitudes toward sexual minorities (e.g., those who identify as lesbian, gay, and bisexual [LGB]) in recent decades, suicidality remains more common among this population than among heterosexuals. While barriers to societal integration-or a lack of meaning, purpose, and belonging as derived from societal norms, goals, and attachment-have been widely theorized as determinants of suicidality for the general population, they have not been comprehensively explored to explain the sexual orientation disparity in suicidality. The aim of this study was to examine differences in suicidal ideation and attempts between LGB and heterosexual individuals in a nationally representative sample, and to examine barriers to societal integration as a potential explanation for any observed disparities over-and-above the influence of established contributors to sexual orientation disparity in suicidality.

METHODS

Data come from the cross-sectional Swedish National Public Health Survey, which collected data from unrestricted random samples of individuals (16-84 years of age) living in Sweden, annually from 2010 to 2015 (n = 57,840 individuals [response rates: 48.1-51.3%]; 1281 (2.2%) self-identified as LGB). Analyses examined sexual orientation differences in suicidality (i.e., past-12-month ideation and attempts), and explored the role of barriers to societal integration (i.e., not living with a partner or children, unemployment, and lack of societal trust) in explaining this disparity over-and-above more commonly explored psychological (e.g., depression, substance use) and interpersonal (e.g., discrimination, victimization, lack of social support) suicidality risk factors.

RESULTS

Compared to heterosexuals, suicidal ideation and attempts were more common among both gay men/lesbians (adjusted odds ratio [AOR] for suicide ideation: 2.69; 95% confidence intervals [CI]: 2.09, 3.47; AOR for suicide attempts: 5.50; 95% CI: 3.42, 8.83), and bisexuals (AOR for suicide ideation: 3.83; 95% CI: 3.26, 4.51; AOR suicide attempts: 6.78; 95% CI: 4.97, 9.24). Barriers to societal integration mediated the association between sexual orientation and suicidality even in models adjusting for established risk factors for suicidality.

CONCLUSION

Our results suggest that previously under-examined factors, namely the disproportionate barriers to societal integration that LGB individuals experience, are important contributors to the substantially elevated risk of suicidality among sexual minorities. Preventive interventions should consider innovative ways to foster societal integration within sexual minority populations and to adjust hetero-centric social institutions to better include sexual minority individuals.

Suicide Rates, Social Capital, and Depressive Symptoms among Older Adults in Japan: An Ecological Study

Depression is considered the primary risk factor for older people's suicide. When considering suicide measures, it is necessary to clarify the relationship between depressive symptoms, social capital, and suicide rates. Therefore, we aimed to clarify the relationship between community-level social capital, depressive symptoms, and suicide rates among older people in Japan. We analyzed the data gathered from 63,026 men and 72,268 women aged 65 years and older, totaling 135,294 subjects in 81 municipalities with a population of over 100,000 participants in the 2013 Sixth Long-Term Care Needs Survey and another survey conducted by Japan Gerontological Evaluation Study (JAGES) in 2013 including the same question items as the survey in Japan. Multiple regression analysis revealed that the male suicide standardized mortality ratio (SMR) was positively correlated with depressive symptoms (B = 2.318, p = 0.002), and received emotional support (B = -2.622, p = 0.014) had a negative correlation with the male suicide SMR. In older males particularly, the received emotional support in the community was independently associated with the suicide rate. Therefore, fostering social support in a community could act as a countermeasure to suicide among older males in Japan.

Socioeconomic inequalities in suicide mortality in Barcelona during the economic crisis (2006-2016): a time trend study

OBJECTIVES

This study aimed to analyse trends in socioeconomic inequalities in suicide mortality in Barcelona before and after the start of the economic crisis that started at the end of 2008, including both individual factors and contextual factors of the deceased's neighbourhood of residence.

DESIGN

This is a trend study of three time periods: pre-economic crisis (2006-2008), early crisis (2009-2012) and late crisis (2013-2016).

SETTING

Total Barcelona residents between 2006 and 2016 (≥25 years of age) and death data derived from the Judicial Mortality Registry of Barcelona.

PARTICIPANTS

996 deaths by suicide between 2006 and 2016 were analysed.

PRIMARY AND SECONDARY OUTCOME MEASURES

The outcomes were age-standardised suicide mortality rates and the associations (relative and absolute risk) between suicide mortality and individual and contextual characteristics for the three time periods.

RESULTS

From 2006 to 2008, men with a lower educational level were more likely to commit suicide than better educated men (relative risk (RR)=1.46; 95% CI 1.11 to 1.91). This difference disappeared after the onset of the crisis. We found no differences among women. From 2013 to 2016, suicide risk increased among men living in neighbourhoods with higher unemployment levels (RR=1.57; 95% CI 1.09 to 2.25) and among women living in neighbourhoods with a higher proportion of elderly people living alone (RR=2.13; 95% CI 1.15 to 3.93).

CONCLUSIONS

We observed risks for suicide among men living in neighbourhoods of Barcelona with higher unemployment levels and among women living in neighbourhoods with a higher proportion of elderly people living alone. Inequalities in suicide mortality according to educational level tended to disappear during the crisis among men. Thus, it is important to continue to monitor suicide determinants especially in times of economic crisis.

Relationship between workplace social capital and suicidal ideation in the past year among employees in Japan: a cross-sectional study

Background

A growing body of evidence has demonstrated the associations between social capital and health. In residential or geographical areas, social capital has attracted attention for its protective effects against suicide. However, to this date, the relationship between social capital and suicidal ideation is not fully elaborated in the occupational setting. Therefore, the aim of the present study was to examine the association between workplace social capital and suicidal ideation in the past year among employees in Japan.

Methods

A cross-sectional, web-based survey was conducted in February/March 2017 via an anonymous self-administered questionnaire distributed to workers in Tsukuba Science City, Japan. Binomial logistic regressions were used to calculate the odds ratios (ORs) and 95% confidence intervals (CIs) for suicidal ideation in the past year, controlling for age group, marital status, educational attainment, and annual household income. The results were shown stratified by sex and occupation.

Results

In total, 7255 of 19,481 workers responded, out of which we could analyze 6325 responses (4030 men, 2295 women). The prevalence of suicidal ideation in the past year was 5.9% for men and 7.8% for women. Low workplace social capital was statistically significantly associated with suicidal ideation both for men (OR = 2.57, 95% CI = 1.72–3.83) and for women (OR = 1.75, 95% CI = 1.15–2.66), compared with high workplace social capital after controlling for socioeconomic factors.

Conclusion

Higher workplace social capital was associated with a reduced risk of suicidal ideation in the past year. Promoting workplace social capital could contribute to preventing suicide among employees in Japan.

Association between interpersonal trust and suicidal ideation in older adults: a cross-sectional analysis of 7070 subjects in Shandong, China

BACKGROUNDS

Suicidal ideation is an important public health issue due to devastating mortality. In the meantime, interpersonal trust was found to be negatively associated with mental disorder and physical health. Although there is increasing evidence that interpersonal trust is a significant predictor of suicidal ideation, evidence of this association is still lacking in the developing world. The aim of this study was to test the association between interpersonal trust and suicidal ideation among older adults in China.

METHODS

Using a multi-stage stratified sampling strategy, 7070 older adults aged 60 and above from Shandong Province, China were recruited in this study. Socio-demographic characteristics, health status, family relationship, psychological distress, interpersonal trust and suicidal ideation in the last 12 months were obtained through face to face interviews. The association between interpersonal trust and suicidal ideation was assessed using multiple logistic regression models adjusting for socio-demographic characteristics, health status, family relationship and psychological distress.

RESULTS

7.1% of participants reported suicidal ideation in the past 12 months, which was related to gender, resident area, marital status, educational level, self-rated economic, chronic disease, self-rated health status and family relationship within 1 month, psychological distress and interpersonal trust. After adjusting for sociodemographic factors, health status, family relationship and psychological distress, interpersonal mistrust was associated with two times odds of suicidal ideation when compared to interpersonal trust CONCLUSIONS: The interpersonal trust was associated with suicidal ideation among elderly in Shandong, China. Intervention approaches regarding inducing and promoting interpersonal trust should be developed to prevent suicide.

Family networks during migration and risk of non-affective psychosis: A population-based cohort study

OBJECTIVE

The determinants of increased psychosis risk among immigrants remain unclear. Given ethnic density may be protective, we investigated whether the presence of immediate family, or "family networks", at time of immigration was associated with risk of non-affective psychosis.

METHODS

We followed a cohort of migrants (n = 838,717) to Sweden, born 1968-1997, from their 14th birthday, or earliest immigration thereafter, until diagnosis of non-affective psychosis (ICD-9/ICD-10), emigration, death, or 2011. Using record linkage, we measured family network as the presence of adult first-degree relatives immigrating with the cohort participant or already residing in Sweden. We used Cox proportional hazards regression to examine whether risk varied between those migrating with family, migrating to join family, or migrating alone.

RESULTS

Migrating with immediate family was associated with increased psychosis risk amongst males compared to males who did not migrate with family (adjusted Hazard Ratio [aHR]: 1.16, 95% CI: 1.00-1.34). Migrating with family did not increase risk among females (aHR: 0.91, 95% CI: 0.78-1.07); similar observations were observed for males who immigrated to join family (aHR: 1.35, 95% CI: 1.21-1.51). In contrast, females who migrated alone were at increased risk compared to females who did not migrate alone (aHR: 1.31, 95% CI: 1.11-1.54).

CONCLUSION

Family networks at the time of immigration were associated with differential patterns of non-affective psychotic disorders for males and females. These results suggest sex-specific differences in the perceived role of family networks during the migration process.

Social capital, socioeconomic status, and depression in community-living elderly

A growing body of evidence has suggested that social capital is an upstream social determinant of mental health. We investigated the association of cognitive social capital, including interpersonal trust and reciprocity, with depressive symptoms in the elderly. We also explored the mediating role of cognitive social capital in the association between socioeconomic status (SES) and depressive symptoms and the moderating effect of SES on the relationship between social capital and depressive symptoms. Data from the 2012 Korea Welfare Panel Study (KOWEPS) was analyzed for 5969 participants aged 60 years or older. Cognitive components of social capital, including interpersonal trust and reciprocity, were evaluated using single-item questionnaires. Socioeconomic and health-related characteristics were investigated and depressive symptoms were evaluated by an 11-item version of the Center for Epidemiologic Studies Depression Scale. Low interpersonal trust and reciprocity levels were significantly associated with depressive symptoms in the elderly. Reciprocity level mediated the association between household income level and depressive symptoms. We did not observe any significant moderating effect of SES on the association between cognitive social capital and depressive symptoms. A significant association between cognitive social capital and depressive symptoms in Korean elderly was found. We elucidated how SES interacted with depressive symptoms through the mediation pathway of cognitive social capital using a representative sample of the Korean elderly population.

Response to unfairness across the suicide risk spectrum

Suicidal behavior is frequently triggered by social crises, such as familial, romantic, social or work-related conflict. A variety of cognitive and social functioning impairments has been associated with suicidal thoughts and acts. One of the precipitating and perpetuating factors of social conflict is the desire for retribution after a perceived offense, even at one's own detriment. We utilized the Ultimatum Game-a behavioral economic task which examines the behavioral response to perceived unfairness-in order to characterize the response to unfairness across the acute suicide risk spectrum. We examined five groups of adult individuals of both genders (n = 204): High- and Low-Lethality recent Suicide Attempters, Suicidal Ideators, Non-Suicidal Depressed Patients; and Healthy Controls. We also measured demographic and clinical variables. Even though all depressed groups showed similar rejection rates in the Ultimatum Game, there was a higher likelihood of rejecting offers in the low stakes condition in all acutely suicidal groups compared with healthy controls. Stake size, offer, education, and gender of the proposer were significantly associated with rejection rates. Acutely suicidal patients may be more vulnerable to adverse interpersonal interactions. Further characterization of social behavior may provide targets for secondary and tertiary prevention for high-risk individuals.

Relative social standing and suicide ideation among Kenyan males: the interpersonal theory of suicide in context

PURPOSE

The purpose of this study is to investigate the association between subjective social status and suicide ideation in a sample of young Kenyan men (age 18-34 years). Situating insights from the interpersonal theory of suicide within social determinants of health framework, we consider whether lower subjective social status predicts lower collective self-esteem (CSE), hopelessness, less meaning in life and more loneliness, and whether these characteristics mediate associations between subjective social status and suicide ideation.

METHOD

A community-based, semi-rural sample (n = 532) of young men, aged 18-34 years, was collected using a standardized questionnaire. The survey questionnaire included the following validated scale items: the short form of the Social and Emotional Loneliness Scale for Adults, CSE, Herth Hope Index, the Meaning in Life Questionnaire, and the Modified Scale for Suicide Ideation. Regression and mediation analyses were used to test hypotheses.

RESULTS

Nearly 12% of respondents reported suicide ideation. Suicide ideation was significantly more common among survey respondents who reported lower subjective social standing. In the first of two mediation models, we found that lower CSE and more loneliness mediate the association between lower subjective social status and suicide ideation. In the second model, we found that respondents with lower CSE and more loneliness expressed lower hope and meaning in life, which also mediated pathways to suicide ideation.

CONCLUSIONS

Findings show a novel synthesis of social determinants literature with the interpersonal theory of suicide. Suicide ideation, along with other mental and social outcomes, may figure more prominently than previously appreciated in the benefits of socio-economic equality. Those who do not participate equally in socio-economic development may be at greater risk of engaging in suicide ideation and behaviors. Suicide prevention research and programmatic responses should adopt a health equity perspective to ensure that prevention is targeted where people are more likely to engage in suicide ideation.

Social Capital and Suicidal Ideation in Community-Dwelling Older Residents: A Multilevel Analysis of 10,094 Subjects in Japan

OBJECTIVE

Social capital, the collective resources of groups including perceptions of trust and reciprocity, is recognized as an important contributor to suicide. We examined the association of individual- and community-level social capital with suicidal ideation after adjusting for social support among older adults living in the community.

METHODS

In August 2010 we sent questionnaires to all residents aged 65 years and older living in 3 rural municipalities (N = 21,232) in Okayama Prefecture, Japan; 13,919 questionnaires were returned (response rate: 65.6%). The final analysis included 10,094 participants. The outcome variable was suicidal ideation. Exposure variables were individual-level mistrust and lack of reciprocity (level 1), and the aggregated responses of these variables from 35 communities in the municipalities (level 2). Covariates included age, sex, educational attainment, marital status, the number of cohabitants, years of residence, self-rated socioeconomic status, disability, social support, and psychological distress. Multilevel logistic regression analysis was performed to obtain odds ratios (ORs) and 95% confidence intervals (CIs).

RESULTS

After adjusting for social support and psychological distress, we found that mistrust and lack of reciprocity were only associated with suicidal ideation at the individual level. Stratified analysis showed that among subjects with psychological distress, mistrust was associated with suicidal ideation at individual (OR: 1.88; 95% CI: 1.42-2.51) and community levels (OR: 1.98; 95% CI: 1.02-3.81).

CONCLUSIONS

Our findings show that individual- and community-level social capital is a possible protective factor for suicidal ideation, particularly for people with psychological distress.

Passive Suicide Ideation Among Older Adults in Europe: A Multilevel Regression Analysis of Individual and Societal Determinants in 12 Countries (SHARE)

OBJECTIVES

Passive suicide ideation (PSI) is common among older adults, but prevalences have been reported to vary considerably across European countries. The goal of this study was to assess the role of individual-level risk factors and societal contextual factors associated with PSI in old age.

METHOD

We analyzed longitudinal data from the Survey of Health, Ageing, and Retirement in Europe (SHARE) on 6,791 community-dwelling respondents (75+) from 12 countries. Bayesian logistic multilevel regression models were used to assess variance components, individual-level and country-level risk factors.

RESULTS

About 4% of the total variance of PSI was located at the country level, a third of which was attributable to compositional effects of individual-level predictors. Predictors for the development of PSI at the individual level were female gender, depression, older age, poor health, smaller social network size, loneliness, nonreligiosity, and low perceived control (R (2) = 25.8%). At the country level, cultural acceptance of suicide, religiosity, and intergenerational cohabitation were associated with the rates of PSI.

DISCUSSION

Cross-national variation in old-age PSI is mostly attributable to individual-level determinants and compositional differences, but there is also evidence for contextual effects of country-level characteristics. Suicide prevention programs should be intensified in high-risk countries and attitudes toward suicide should be addressed in information campaigns.

Changes in suicide rates in disaster-stricken areas following the Great East Japan Earthquake and their effect on economic factors: an ecological study

OBJECTIVE

Devastating disasters may increase suicide rates due to mental distress. Previous domestic studies have reported decreased suicide rates among men following disasters. Few reports are available regarding factors associated with disasters, making it difficult to discuss how these events affect suicide rates. This study aimed to observe changes in suicide rates in disaster-stricken and neighboring areas following the Great East Japan Earthquake, and examine associations between suicide rates and economic factors.

METHODS

Monthly suicide rates were observed from March 2009 to February 2013, during which time the earthquake occurred on March, 2011. Data were included from disaster-stricken (Iwate, Miyagi, and Fukushima Prefectures) and neighboring (control: Aomori, Akita, and Yamagata Prefectures) areas. The association between changes in suicide rates and economic variables was evaluated based on the number of bankruptcy cases and ratio of effective job offers.

RESULTS

In disaster-stricken areas, post-disaster male suicide rates decreased during the 24 months following the earthquake. This trend differed relative to control areas. Female suicide rates increased during the first seven months. Multiple regression analysis showed that bankruptcy cases (β = 0.386, p = 0.038) and ratio of effective job offers (β = -0.445, p = 0.018) were only significantly associated with male post-disaster suicide rates in control areas.

CONCLUSION

Post-disaster suicide rates differed by gender following the earthquake. Our findings suggest that considering gender differences might be important for developing future post-disaster suicide prevention measures. This ecological study revealed that increasing effective job offers and decreasing bankruptcy cases can affect protectively male suicide rates in control areas.

Social capital and reported discrimination among people with depression in 15 European countries

PURPOSE

Social capital is a protective factor for mental health. People with depression are vulnerable to discrimination and its damaging impact. No previous studies have explored the link between social capital and experienced or anticipated discrimination in people with depression. This study aims to test the hypothesis that levels of self-reported discrimination in people with depression are inversely associated with social capital levels.

METHOD

A total of 434 people with major depression recruited in outpatient settings across 15 European countries participated in the study. Multivariable regression was used to analyse relationships between discrimination and interpersonal and institutional trust, social support and social network.

RESULTS

Significant inverse association was found between discrimination and social capital in people with major depression. Specifically, people with higher levels of social capital were less likely to have elevated or substantially elevated levels of experienced discrimination.

CONCLUSIONS

Higher level of social capital may be closely associated with lower level of experienced discrimination among patients with major depression. It is important to explore these associations more deeply and to establish possible directions of causality in order to identify interventions that may promote social capital and reduce discrimination. This may permit greater integration in society and more access to important life opportunities for people with depression.

Prefecture-level economic conditions and risk of suicide in Japan: a repeated cross-sectional analysis 1975-2010

BACKGROUND

Geographical inequalities in suicide have risen dramatically across 47 prefectures in Japan since 1995. We sought to examine temporal changes in the associations between prefecture-level economic conditions and completed suicide during the recent 35 years, controlling for individual composition in each prefecture.

METHODS

Based on quinquennial vital statistics and census data from 1975 to 2010, we analysed the entire population aged 25-64 years. The total number of suicides was 87 553 men and 34 559 women. As indicators of prefecture-level economic conditions, we used average yearly income, average savings and income inequality (measured by Gini coefficients for yearly income). For each sex, we estimated odds ratios and 95% credible intervals for suicide using multilevel logistic regression models, with cells at level 1, years at level 2 and prefectures at level 3.

RESULTS

Even after adjusting for individual age, occupation and time trends, low average savings at prefecture level were associated with a higher risk of suicide among men (odds ratio in low vs. high savings: 1.13, 95% credible interval: 1.05-1.21), whereas no clear patterns were observed with other economic indicators. When we further examined the associations in year-specific models by conducting a two-level analysis, both average yearly income and average savings were inversely associated with suicide risk in recent years. No clear association was found between income inequality and suicide risk for either sex.

CONCLUSION

The present findings suggest that low area socioeconomic status may be driving the growing geographical inequalities in suicide in Japan, primarily among men.

Community social capital and suicide mortality in the Netherlands: a cross-sectional registry-based study

BACKGROUND

Evidence on the effect of community social capital on suicide mortality rates is fragmentary and inconsistent. The present study aims to determine whether geographic variations in suicide mortality across the Netherlands were associated with community social capital.

METHODS

We included 3507 neighbourhoods with 6207 suicide deaths in the period 1995-2000. For each neighbourhood, we measured perceived social capital using information from interview surveys, and we measured structural aspects of social capital using population registers. Associations with mortality were determined using Poisson regression analysis with control for confounders at individual level (age, sex, marital status, country of origin) and area level (area income, population density, religious orientation).

RESULTS

Suicide mortality rates were related to the measure of perceived social capital. Mortality rates were 8 percent higher (95% confidence interval (CI): 2 to 16 percent) in areas with low capital. In stratified analyses, this difference was found to be significantly larger among men (12 percent, CI: 2 to 22) than women (1 percent, CI: -9 to 13), larger among those age 0-50 (18 percent, CI: 8 to 29) than older residents (-2 percent, CI: -12 to 8), and larger among the unmarried (30 percent, CI: 16-45) than the married (-2 percent, CI: -12 to 9). Associations with the structural aspect of social capital were in the same direction, but weaker, and not statistically significant.

CONCLUSIONS

This study contributed some evidence to assume a modest effect of community social capital on suicide mortality rates. This effect may be restricted to specific population groups such as younger unmarried men.

Social capital and suicide: an ecological study in Tokyo, Japan

OBJECTIVE

The aim of this study is to clarify the association between area-based social capital and suicide rate among municipalities of Tokyo.

METHODS

The study areas were 20 administrative municipalities of Tokyo. Social capital (i.e., organizational membership, social trust, fairness, helpfulness, and confidence in organizations) was measured based on data from a previous survey (response rate 28 %). Gender-specific age-adjusted suicide rates averaged over 5 years, sociodemographic, and other area characteristics were obtained from relevant national statistics. Multiple linear regression analysis of suicide rates was applied on each social capital variable, adjusting for the other area characteristics.

RESULTS

There was no significant crude Pearson's correlation between any social capital variable and suicide rate. Multiple regression analyses revealed a significant negative association between social trust and suicide rate for men (p = 0.04).

CONCLUSIONS

While based on only limited evidence from a cross-sectional ecological study, area-based social trust may be associated with decreased suicide rates for men in Tokyo.

Social participation, social environment and death ideations in later life

OBJECTIVE

Few studies on elders' suicide and depression have integrated social and community factors in their explicative models. Most of the studied variables used are focused on individual and based on psychopathological models. The purpose of this study is to investigate the impact of socio-environmental factors on death ideations, using data from the European SHARE cohort.

METHOD

Social support components and death ideations have been studied, together with known individual risk factors, within a sample of 11,425 European participants in the SHARE study, aged over 64. The item evaluating death ideations was extracted from the EURO-D12 questionnaire.

RESULTS

The high prevalence of death ideations (6.9% for men and 13.0% for women) confirmed that elders' death ideations, as it is known to be linked to suicidal behaviors, is a major public health issue. Bivariate analyses revealed a strong association between community participation and death ideations. This association was no longer significant while adjusting for depressive symptomatology. The logistic model identified that factors significantly associated with death ideations, when adjusted for the other factors were: having multiple depressive symptoms (OR = 1.64 per symptom) being aged, especially over 84 (OR = 1.58), being retired for fewer than five years (OR = 1.46), being widowed (OR = 1.35) and having a long-term illness (OR = 1.28).

CONCLUSIONS

Although social and community participation is associated to death ideations, this link becomes non-significant in a regression model taking into account other factors. It is important to notice that depressive symptoms, which are obviously closely related to death ideations, take the greatest part in the association among all associated factors. Our results suggest that, consistently with the literature, while addressing death ideation or suicide prevention, professionals have to consider first the secondary prevention of depressive symptomatology. Strategies targeting social isolation and community participation should be considered as part of primary prevention policies.

Suicidal behaviours in adolescents in Nova Scotia, Canada: protective associations with measures of social capital

PURPOSE

Few studies of adolescent suicidality have examined its associations with social capital. We explored associations of measures of individual level social capital with self-reported suicide ideation and suicide attempt in adolescents in Cape Breton, Nova Scotia, Canada, controlling for other factors known to be associated with adolescent suicidality.

METHODS

We surveyed 1,597 grade 10-12 students at three high schools in 2006 using self-completion questionnaires. Both sexes were combined for analysis. Outcome measures were suicidal ideation and attempt in the previous year. Measures of social capital included perceptions of trustworthiness and helpfulness of others at school, frequency of religious attendance and participation in extracurricular activities. Logistic regressions were carried out to determine associations of social capital with suicidality while controlling for other factors.

RESULTS

Perceived trustworthiness and helpfulness were protective for suicidal ideation and suicide attempt in the previous year. In adjusted analyses, there were interactions of gender and social capital-females reporting more social capital were more protected from suicide attempt relative to males with similar levels of social capital.

CONCLUSIONS

This study provides initial evidence of protective associations of individual level social capital with adolescent suicidality. Our findings suggest that among adolescents low social capital as measured by perceptions of trust and helpfulness of others at school may be a warning sign for suicidality, particularly for females. It may be helpful to inquire of young people how they perceive the trustworthiness and helpfulness of their school environment as a measure of how supportive that environment might be to them when they are facing challenges to their mental health.

Latent variable model for suicide risk in relation to social capital and socio-economic status

BACKGROUND

There is little evidence on the association between suicide outcomes (ideation, attempts, self-harm) and social capital. This paper investigates such associations using a structural equation model based on health survey data, and allowing for both individual and contextual risk factors.

METHODS

Social capital and other major risk factors for suicide, namely socioeconomic status and social isolation, are modelled as latent variables that are proxied (or measured) by observed indicators or question responses for survey subjects. These latent scales predict suicide risk in the structural component of the model. Also relevant to explaining suicide risk are contextual variables, such as area deprivation and region of residence, as well as the subject's demographic status. The analysis is based on the 2007 Adult Psychiatric Morbidity Survey and includes 7,403 English subjects. A Bayesian modelling strategy is used.

RESULTS

Models with and without social capital as a predictor of suicide risk are applied. A benefit to statistical fit is demonstrated when social capital is added as a predictor. Social capital varies significantly by geographic context variables (neighbourhood deprivation, region), and this impacts on the direct effects of these contextual variables on suicide risk. In particular, area deprivation is not confirmed as a distinct significant influence. The model develops a suicidality risk score incorporating social capital, and the success of this risk score in predicting actual suicide events is demonstrated.

CONCLUSIONS

Social capital as reflected in neighbourhood perceptions is a significant factor affecting risks of different types of self-harm and may mediate the effects of other contextual variables such as area deprivation.

Association between interpersonal trust, reciprocity, and depression in South Korea: a prospective analysis

BACKGROUND

A growing body of empirical evidence indicates that low-level social capital is related to poor mental health outcomes. However, the prospective association between social capital and depression remains unclear, and no published studies have investigated the association with longitudinal data in East-Asian countries.

METHODS

We analyzed data from the ongoing Korean Welfare Panel Study to prospectively investigate association between social capital and depression. Social capital was measured at the individual level by two items specific to interpersonal trust and reciprocity. Depression was annually assessed as a dichotomous variable using the Center for Epidemiologic Studies Depression Scale. After excluding participants who had depression in 2006, logistic regression models were applied to estimate the association between each social capital indicator and new-onset depression developed in 2007 or long-term depression in both 2007 and 2008. We also examined the association in a subpopulation restricted to healthy participants after excluding individuals with any pre-existing disability, chronic disease, or poor self-rated health condition.

RESULTS

Compared to the high interpersonal trust group, the odds ratios of developing new-onset and long-term depression among the low interpersonal trust group were 1.22 (95% CI: 1.08∼1.38) and 1.23 (95% CI: 1.03∼1.50), respectively, and increased to 1.32 (95% CI: 1.10∼1.57) and 1.47 (95% CI: 1.05∼2.08) in the subpopulation analyses restricted to healthy individuals. Although the low and intermediate reciprocity group also had significantly higher odds of developing new-onset depression compared to the high reciprocity group, the effects were attenuated and statistically non-significant in the subpopulation analyses.

CONCLUSION

Low interpersonal trust appears to be an independent risk factor for new-onset and long-term depression in South Korea.

Economic factors and suicide rates: associations over time in four countries

OBJECTIVE

Suicides account for more than 30,000 deaths per year in the US alone. Suicide rates change over time, and the factors influencing them remain poorly understood. Economic factors, in particular unemployment, have been suggested as a major influence. However, the evidence for this has been inconsistent, which may be partly explained by shortcomings of the statistical methods used.

METHODS

Time series analytical techniques (unit root and co-integration tests) were applied to test the associations over time between economic factors, i.e. unemployment, real gross domestic product per capita (RGDP) and the consumer price index (CPI) and death rates by suicide as collected by national agencies in the UK (1901-2006), US (1900-1997), France (1970-2004) and Italy (1970-2001). Traditional correlation analyses were used when appropriate.

RESULTS

Co-integration and correlation tests showed a long-run association between economic factors and suicide rates. Increase/decrease of unemployment predicted an increase/decrease of suicide rates over long historical periods and in different nations. RGDP and the CPI were also linked with suicide rates, but this was not consistently so and the direction of the association varied.

CONCLUSIONS

Unemployment is a major factor influencing suicide rates over long periods of time and in different national contexts. It needs to be considered as a confounding factor in evaluations of suicide prevention strategies.

Integrating social epidemiology into public health research and practice for maternal depression

The impact of maternal depression on women and their families has been well documented. Given the prevalence and impact of this problem, one important strategy is to strengthen and expand our public health approaches. Although principles of social epidemiology are increasingly used in the field of maternal and child health, few public health efforts to address maternal mental health have incorporated ecosocial frameworks such as community connectedness, quality of social relationships, and social capital. One method to augment current public health approaches to maternal depression is through the incorporation of a perspective focusing on community, cohesion, group membership, and connectedness--a concept often described as social capital. We describe the relevance of this ecosocial perspective for mental health promotion programs for mothers.

The spatial pattern of suicide in the US in relation to deprivation, fragmentation and rurality

Analysis of geographical patterns of suicide and psychiatric morbidity has demonstrated the impact of latent ecological variables (such as deprivation, rurality). Such latent variables may be derived by conventional multivariate techniques from sets of observed indices (for example, by principal components), by composite variable methods or by methods which explicitly consider the spatial framework of areas and, in particular, the spatial clustering of latent risks and outcomes. This article considers a latent random variable approach to explaining geographical contrasts in suicide in the US; and it develops a spatial structural equation model incorporating deprivation, social fragmentation and rurality. The approach allows for such latent spatial constructs to be correlated both within and between areas. Potential effects of area ethnic mix are also included. The model is applied to male and female suicide deaths over 2002–06 in 3142 US counties.

Schizophrenia and the city: A review of literature and prospective study of psychosis and urbanicity in Ireland

Urbanicity has been repeatedly associated with increased incidence of schizophrenia. This article (a) presents results of a prospective study of urbanicity and schizophrenia in Ireland and (b) reviews the literature relating to urbanicity and schizophrenia. We prospectively compared incidence of schizophrenia and other psychoses in urban and rural catchment areas (over 4years and 7years, respectively) using face-to-face, DSM-III-R diagnostic interviews. Incidence of schizophrenia in males was higher in urban compared to rural areas, with an age-adjusted incidence rate ratio (IRR) of 1.92 (1.52-2.44) for males and 1.34 (1.00-1.80) for females. Incidence of affective psychosis was lower in urban compared to rural areas for males (IRR 0.48; 0.34-0.67) and females (IRR 0.60; 0.43-0.83). These findings are consistent with the literature, which provides persuasive evidence that risk for schizophrenia increases with urban birth and/or upbringing, especially among males. Register-based studies support this conclusion more consistently than studies using face-to-face diagnostic interviews, the difference being related to power. The mechanism of association is unclear but may relate to biological or social/environmental factors or both, acting considerably before psychotic symptoms manifest. There is a diversity of potential candidates, including air pollution, cannabis and social exclusion. Urbanicity may have a synergistic effect with genetic vulnerability. Future research is likely to focus on the relationship between urbanicity and neural maldevelopment, the possibility of rural protective factors (e.g. social capital, low social fragmentation), urbanicity in developing countries, cultural variables and geographical location, and associations between urbanicity and other disorders (e.g. affective psychosis).