Consistency of immigrant and country-of-birth suicide rates: a meta-analysis

Meta-Analysis of Acculturation and Suicide-Related Outcomes: A Test of the Immigrant Paradox

OBJECTIVE

This meta-analysis aimed to systematically test the relation between acculturation and suicide-related outcomes among immigrants, with attention to key methodological (i.e., measure of suicide-related outcome, measure of acculturation) and demographic (i.e., race, gender, age, geographic region, publication year) moderators.

METHOD

We conducted a meta-analysis of 72 independent samples from 50 studies (38 peer-reviewed articles, 12 dissertations) representing more than 1.4 million immigrants. Participants' age ranged from 11.20 to 74.70 years (M = 29.96, SD = 15.07). Random effects models were used for both main and moderation analyses.

RESULTS

We found significant positive associations between acculturation and suicidal ideation, but not suicide attempts and deaths. We also found a significant and positive effect of acculturation on suicide-related outcomes when acculturation was measured by psychological scales, but not by generation status, length of residence in the host country, and proficiency in the host country's language. More acculturated Latinx immigrants were at higher risk for suicide-related outcomes, whereas a reverse pattern was found among Asian immigrants. Meta-regressions revealed that the moderating effects of participants' age and publication year were also significant.

CONCLUSION

Our results show partial support for the immigrant paradox but suggest that the relation between acculturation and suicide-related outcomes is complex and multifaceted. We discuss the implications of our findings and recommendations for research and prevention.

Suicide in first-generation Australian migrants, 2006-2019: a retrospective mortality study

Background

This study addressed the limited understanding of suicide risk and patterns among migrants in Australia. It examined national-level suicide rates and trends in the Australian population to identify migrant groups which are disproportionately affected by suicide.

Methods

The National Coronial Information System was used to identify suicide cases from 2006 to 2019. Incident rate ratios (IRR) with 95% confidence intervals (CI) evaluated suicide risk for migrant groups compared to Australian-born and migrants from English-speaking countries. Age-standardised suicide rates (ASR) per 100,000 and average annual percentage change (AAPC) were calculated to compare suicide rates and trends.

Findings

Compared to the Australian-born population, all migrant males and females had significantly lower suicide risk, except females from Oceania countries. Females from European (IRR 1.28, 95% CI 1.13, 1.14) and Oceanian countries (IRR 1.25; 95% CI 0.95, 1.66) had an elevated suicide risk compared to female migrants from English-speaking countries. Male migrants from Oceania (ASR 20.4, AAPC 1.0 (-3.6, 5.8)) and Africa (ASR 18.0, AAPC -0.4 (-5.5, 4.9)) have high ASR with no significant changes in trend over the study duration. Female African migrants had an ASR of 5.3 per 100,000, which increased by 8% (95% CI 1.4, 15.0) between 2006 and 2019.

Interpretation

Migrants from Oceania and African countries are disproportionately affected by suicide mortality compared to other migrant groups in Australia. Further research is needed to identify the risk factors and develop suicide prevention strategies for these groups.

Funding

Suicide Prevention Australia, Australian Research Council.

The Impact of Religion and Spirituality on Suicide Risk in Veterans and Refugees With Posttraumatic Stress Disorder

ABSTRACT

It has been suggested that religion and spirituality have a protective impact on suicide risk in populations living with posttraumatic stress disorder (PTSD). This review sought to examine the association between suicide risk among veterans and refugees with PTSD and religion or spirituality as a modifying factor. Two databases, PubMed and Embase, were searched and 10 publications were identified and included. Seven publications found that religion or spirituality was associated with lower suicide risk. The findings in this study suggest that religion and spirituality contain social as well as psychological domains, which should be considered in future interventions and in strategies of prevention of suicide in populations with PTSD. Further high-quality research with well-defined terms of religion and spirituality that investigates the connection to suicide risk of veterans and refugees with PTSD is recommended.

Two sides of the same coin? The association between suicide stigma and suicide normalisation

AIMS

Evidence suggests that suicide stigma (i.e. negative attitudes towards persons affected by suicide/suicidality) and suicide normalisation (i.e. liberal attitudes towards suicide) are both associated with increased suicide risk. Despite conceptual similarities and potential interaction, suicide stigma and suicide normalisation have usually been investigated separately. We used cross-sectional data from a community sample to test the association between suicide stigma and suicide normalisation as well as to identify their respective determinants and consequences.

METHODS

Participants were N = 3.269 adults recruited from an established online-panel using quotas to reflect the composition of the German general population with regard to age, gender, education and region. We collected information about suicide stigma, suicide normalisation, intentions to seek help for suicidality, current suicidality, suicide literacy, negative mood and socio-demographic variables. We used regression modelling to determine the association between suicide stigma and suicide normalisation as well as to identify their determinants and consequences.

RESULTS

Suicide stigma and suicide normalisation were inversely associated so that higher suicide stigma scores were linked to lower suicide normalisation. More suicide stigma was associated with reduced intentions to seeking professional help, increased willingness to seek help from family and friends and lower odds to experience current suicidality, however the association between suicide stigma and intentions to seek professional help diminished after controlling for confounding variables. Increased suicide normalisation was linked to reduced intentions to seek help from professionals or family and friends, as well as higher odds to experience current suicidality, even after controlling for confounding variables.

CONCLUSIONS

Our findings suggest that interventions to reduce public suicide stigma are at risk to unintentionally increase suicide normalisation, which appears to be a key barrier to seeking help for suicidality. Future research should therefore identify strategies to improve attitudes towards persons affected by suicidality that avoid normalisation, i.e. do not convey the message of suicide as an acceptable solution for difficult life situations. One strategy with great potential to safely reduce public suicide sigma could be interventions that stimulate interpersonal contact with affected persons sharing their recovery story.

Prevalence of Suicide in Immigrants/Refugees: A Systematic Review and Meta-Analysis

OBJECTIVE

In recent years, there has been an increase in immigrant populations worldwide. This study aims to present the global prevalence of suicide between immigrants and refugees as well as to report the prevalence of suicide ideation, suicide mortality, suicide attempts, and plan of suicide.

METHOD

Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA's) rules were used as a guide in the current research path. PubMed and EMBASE were targeted for the study until December 2019. After collecting the data, the number of events and sample size extracted for each study and also pooled odds ratio and confidence interval (CI) were used to investigate the suicide ratio among immigrants and refugees compared to the native population.

RESULTS

Fifty-one studies were included in the meta-analysis to investigate suicide prevalence or suicide odds ratio. The prevalence of suicidal ideation was 16% (CI: 0.12-0.20, I2 = 99.4%), for attempted suicide was 6% (CI: 0.05-0.08, I2 = 98.0%), and for suicide plan prevalence was 4% (CI: 0.00-0.08, I2 = 96.8%). The prevalence of suicidal ideation was 10% (CI: 0.04-0.17, I2 = 0.0%) in men and 17% (CI: 0.10-0.24, I2 = 96.8%) in women. The prevalence of attempted suicide was 1% (CI: 0.01-0.02, I2 = 0.0%) in men and 7% (CI: 0.03-0.10, I2 = 94.4%) in women. The odds ratio of suicide mortality among immigrants was 0.91 (CI: 0.90-0.93, p < 0.001; I2 = 97.6%) and for attempted suicide was 1.15 (CI: 1.10-1.20, p < 0.001; I2 = 92.0%). Begg's test (p = 0.933) (Egger test; p = 0.936) rejected publication bias.

CONCLUSION

Given the high prevalence of suicide, especially suicide ideation and suicide attempts in immigrants, increased attention needs to be paid to the mental health of this population.

Trends in suicide mortality in Spain, 2000-2019: Moderation by foreign-born status

BACKGROUND

Suicide rates in Spain remained stable during the early 21st century. Suicide rates among specific socially vulnerable groups, however, remain unknown, and there are no data on suicide mortality rates and trends among migrants living in Spain.

METHODS

We analyzed Spain's 2000-2019 suicide mortality data by migration status (native- vs. foreign-born), examining crude and age-standardized rates and trends overall and by sex, age-group, suicide method, Spanish citizenship status, and country of origin, using joinpoint regression models.

RESULTS

Annual crude suicide mortality rates were higher among native- than foreign-born individuals (9.2 versus 6.2 por 100.000 inhabitants, respectively). While suicide rates decreased among native-born men and remained roughly stable among native-born women - with slight decreases among older native-born women, they increased after 2010 among foreign-born men aged 15-44 and ≥65 years and foreign-born women aged ≥65 years. Increases in suicide trends among foreign-born residents in Spain were largely driven by increases specific to individuals without Spanish citizenship.

LIMITATIONS

Suicide mortality data are subject to potential errors due to underreporting of suicide in death certificates CONCLUSIONS: Between 2010-2019, suicide in Spain increased only among foreign-born residents. These findings should enhance our understanding of the dynamics and potential actionable causes of suicide among migrants living in Spain.

The Effects of Ethno-cultural Origin-Destination Interactions on Immigrants' Longevity

A large body of research has documented an immigrant mortality advantage. However, we still do not know enough about how interactions between the characteristics of origin and destinations countries shape variabilities in immigrants' experiences and health. In this paper, we examine the effects of ethno-cultural similarities and differences between the country of origin and the country of destination on immigrants' longevity. We use meta-regression methods to examine data on 78 origin and 16 destination countries (1092 risk estimates from 69 studies). In contrast to expectations from approaches that focus on immigration/acculturation stress, we found that a shared official linguistic family, moving to a country where one is not likely to be considered a visible minority, and more integrative immigration policies actually reduce or even eliminate the immigrant mortality advantage. We discuss potential explanations for these findings and argue that selection mechanisms provide a better account.

A cross-cultural study of attitudes toward suicide among young people in India, Italy and Australia

BACKGROUND

An understanding of the cultural aspects of suicidal behavior is essential for the development of culturally appropriate suicide prevention and intervention strategies.

AIMS

This study explored the attitudes toward youth suicide in 686 Italian, Indian and Australian undergraduate students (18-24 years old).

METHOD

A 21-item suicide attitude inventory titled Attitude towards Youth Suicide (AtYS) scale, included in this paper, was used in the three samples.

RESULTS

Four factors were extracted, labeled negative attitudes toward suicide, belief that suicide was not preventable, suicide as acceptable and normal, and the existence of risk signs for suicide. Country differences were found for all four subscales, with Indian students having the most negative attitudes toward suicide. Sex differences were found in all three countries with women, on the whole, having less negative attitudes toward suicide, more belief in the preventability of suicide in India and more belief in risk signs for suicide in Italy.

CONCLUSION

Attitudes are linked to suicide in a complex manner. More quantitative and qualitative studies, including in lower-income and non-English speaking Western societies, are needed.

Suicide among Ethiopian origin soldiers in the IDF - A qualitative view of risk factors, triggers, and life circumstances

BACKGROUND

Ethiopian soldiers in the IDF comprise an at-risk group for suicide. The study investigated the unique characteristics of these soldiers, compared with other suicides in the Israel Defense Forces (IDF).

METHOD

The research group included all (n = 36) male soldiers born an Ethiopian family, who died by suicide during their compulsory military service in the years 1990-2017. The control group included all (n = 55) non-Ethiopian soldiers who died by suicide during their military service in the years 2009-2013. Socio-demographic, military-service, and suicide-related variables were examined.

RESULTS

Logistic regression analysis revealed that risk for suicide among Ethiopian soldiers were being incarcerated in a military prison, belonging to a bereaved family, seniority in the military service, and avoidance of help-seeking (explaining 87.8% of the variance).

DISCUSSION

Ethiopian suicide soldiers have endured heavy environmental pressure, such as financial problems and family bereavement. These circumstances could lead to conflict with the soldier's military service, resulting in absence from service or even imprisonment. When the Ethiopian soldier's distress goes un-expressed in words or actions with others, the psychological crisis signs remain unapparent to those around him, and the risk for eventual suicide is high.

LIMITATIONS

The case analysis did not include retrieving information from family and relatives outside the military but was derived from archived material, collected primarily for legal purposes. This limitation was addressed by assembling objective variables and information collected prior to the suicide, along with post-mortem information collected by mental health personnel in their assessments.

Suicide and Self-Harm in Recent Immigrants in Ontario, Canada: A Population-Based Study

OBJECTIVE

To estimate the rates of suicide and self-harm among recent immigrants and to determine which immigrant-specific risk factors are associated with these outcomes.

METHODS

Population-based cohort study using linked health administrative data sets (2003 to 2017) in Ontario, Canada which included adults ≥18 years, living in Ontario (N = 9,055,079). The main exposure was immigrant status (long-term resident vs. recent immigrant). Immigrant-specific exposures included visa class and country of origin. Outcome measures were death by suicide or emergency department visit for self-harm. Cox proportional hazards estimated adjusted hazard ratios (aHRs) and 95% confidence intervals (CIs).

RESULTS

We included 590,289 recent immigrants and 8,464,790 long-term residents. Suicide rates were lower among immigrants (n = 130 suicides, 3.3/100,000) than long-term residents (n = 6,354 suicides, 11.8/100,000) with aHR 0.3, 95% CI, 0.2 to 0.3. Male-female ratios in suicide rates were attenuated in immigrants. Refugees had 2.1 (95% CI, 1.3 to 3.6; rate 6.1/100,000) and 2.8 (95% CI, 2.5 to 3.2) times the likelihood of suicide and self-harm, respectively, compared with nonrefugee immigrants. Self-harm rate was lower among immigrants (n = 2,256 events, 4.4/10,000) than long-term residents (n = 68,039 events, 9.7/10,000 person-years; aHR 0.3; 95% CI, 0.3 to 0.3). Unlike long-term residents, where low income was associated with high suicide rates, income was not associated with suicide among immigrants and there was an attenuated income gradient for self-harm. Country of origin-specific analyses showed wide ranges in suicide rates (1.4 to 9.9/100,000) and self-harm (1.8 to 14.9/10,000).

CONCLUSION

Recent immigrants have lower rates of suicide and self-harm and different sociodemographic predictors compared with long-term residents. Analysis of contextual factors including immigrant class, origin, and destination should be considered for all immigrant suicide risk assessment.

Ethnic inequalities in the incidence of diagnosis of severe mental illness in England: a systematic review and new meta-analyses for non-affective and affective psychoses

PURPOSE

Although excess risks particularly for a diagnosis of schizophrenia have been identified for ethnic minority people in England and other contexts, we sought to identify and synthesise up-to-date evidence (2018) for affective in addition to non-affective psychoses by specific ethnic groups in England.

METHODS

Systematic review and meta-analysis of ethnic differences in diagnosed incidence of psychoses in England, searching nine databases for reviews (citing relevant studies up to 2009) and an updated search in three databases for studies between 2010 and 2018. Studies from both searches were combined in meta-analyses allowing coverage of more specific ethnic groups than previously.

RESULTS

We included 28 primary studies. Relative to the majority population, significantly higher risks of diagnosed schizophrenia were found in Black African (Relative risk, RR 5.72, 95% CI 3.87-8.46, n = 9); Black Caribbean (RR 5.20, 95% CI 4.33-6.24, n = 21); South Asian (RR 2.27, 95% CI 1.63-3.16, n = 14); White Other (RR 2.24, 95% CI 1.59-3.14, n = 9); and Mixed Ethnicity people (RR 2.24, 95% CI 1.32-3.80, n = 4). Significantly higher risks for diagnosed affective psychoses were also revealed: Black African (RR 4.07, 95% CI 2.27-7.28, n = 5); Black Caribbean (RR 2.91, 95% CI 1.78-4.74, n = 16); South Asian (RR 1.71, 95% CI 1.07-2.72, n = 8); White Other (RR 1.55, 95% CI 1.32-1.83, n = 5); Mixed Ethnicity (RR 6.16, 95% CI 3.99-9.52, n = 4).

CONCLUSIONS

The risk for a diagnosis of non-affective and affective psychoses is particularly elevated for Black ethnic groups, but is higher for all ethnic minority groups including those previously not assessed through meta-analyses (White Other, Mixed Ethnicity). This calls for further research on broader disadvantages affecting ethnic minority people.

Suicide risk among native- and foreign-origin persons in Sweden: a longitudinal examination of the role of unemployment status

PURPOSE

Prior research has documented an association between unemployment and elevated suicide risk. Yet, few Swedish studies have explicitly considered how such risk may vary by different migration background characteristics among persons of foreign-origin, who often experience diverse forms of labor market marginalization. This study examines the extent to which unemployment status may differentially influence suicide risk among the foreign-origin by generational status, region of origin, age at arrival, and duration of residence.

METHODS

Population-based registers were used to conduct a longitudinal, open cohort study of native-origin and foreign-origin Swedish residents of working age (25-64 years) from 1993 to 2008. Hazard ratios and 95% confidence intervals for suicide mortality were estimated using gender-stratified Cox proportional hazards models.

RESULTS

Elevated suicide risk observed among foreign-origin unemployed groups was generally of a similar or lower magnitude than that found in unemployed native-origin, although unemployed second-generation Swedish men demonstrated significantly greater (p < 0.05) excess risk of suicide than that observed among their native-origin counterparts. Unemployed foreign-born men with a younger age at arrival and longer duration of residence demonstrated an increased risk of suicide, while those who arrived as adults, and a shorter duration of residence did not show any increased risk. Among foreign-born women, excess suicide risk persisted regardless of age at arrival and duration of residence in the long-term unemployed.

CONCLUSIONS

Multiple migration background characteristics should be considered when examining relationships between employment status and suicide among the foreign-origin.

Suicide by persons with foreign background in Japan

Purpose

This study examined trends in the suicide rates of persons with foreign background in Japan.

Methods

Using the nationwide death records in the Vital Statistics of Japan, we first reported the age-adjusted suicide rates of 8 foreign nationals (Brazil, China, Korea, Peru, the Philippines, Thailand, the United Kingdom, and the United States) in Japan by sex from 1980 to the mid-2010s. We also computed rate ratios to compare the suicide rate of each group with those of the Japanese population. Second, we focused on Koreans, who had the highest suicide rate in Japan. We compared the suicide rates of Koreans in Japan with Koreans in South Korea to examine whether their suicide rates were more closely related to those of their country of origin or those of their host country.

Results

We found that the suicide rates of Koreans and Chinese in Japan were similar to or higher than those of Japanese, while other groups tended to show lower suicide rates. Most notably, Koreans displayed consistently high suicide rates from 1980 to the mid-2010s, which were nearly twice as high as those of the Japanese population. Korean males and females in Japan had higher suicide rates than those in South Korea.

Conclusions

Immigrants in Japan were not necessarily influenced by the suicide rates of the host country. The high suicide rates among Korean residents in Japan might be explained by various disadvantages and adversities that they face in Japan.

Suicide and Suicide-related Behavior among Bhutanese Refugees Resettled in the United States

Suicidal behavior and death by suicide are significant and pressing problems in the Bhutanese refugee community. Currently, Bhutanese refugees are dying by suicide at a rate nearly two times that of the general U.S. population. Proper identification of risk factors for suicide saves lives; however, if risk is underestimated due to culturally inflexible risk assessments, preventable deaths may continue to occur. In this review, we examine specific cultural factors related to psychopathology and suicide among Bhutanese refugees. To contextualize the current suicide crisis among Bhutanese refugees, we propose an integration of the interpersonal psychological theory of suicide (Joiner, 2005) and the cultural model of suicide (Chu, Goldblum, Floyd, & Bongar, 2010). We provide recommendations for preventing suicide from a systems framework and discuss practical lessons from a preliminary study designed to test a culturally-responsive model of suicide in Bhutanese refugees.

Late-life suicidal behaviours among new users of antidepressants: a prospective population-based study of sociodemographic and gender factors in those aged 75 and above

OBJECTIVE

To investigate sociodemographic and gender factors associated with suicide and suicide attempts among new users of antidepressants aged 75 and above.

DESIGN

Register-based cohort study.

SETTING

National population-based cohort of Swedish residents aged ≥75 years.

PARTICIPANTS

185 225 patients who initiated antidepressant medication between 1 January 2007 and 31 December 2013 were followed until 31 December 2014.

MAIN OUTCOME MEASURES

Suicide and suicide attempts. Fine and Gray regression models were used to analyse the sociodemographic factors (age, country of birth, marital status, education level, last occupation, income and social allowance) associated with suicidal behaviours in the entire cohort and by gender.

RESULTS

During follow-up, 295 suicides and 654 suicide attempts occurred. Adjusted sub-hazard ratios (aSHRs) for suicide were lower among older age groups (aSHR 0.73, 95% CI 0.53 to 0.99 for those 85-89 years; and aSHR 0.53, 95% CI 0.33 to 0.86 for those ≥90 years). A similar pattern was observed for suicide attempts. Suicide attempts were more common among those born in foreign countries (aSHR 1.58, 95% CI 1.16 to 2.15 for those born in another Nordic country; and aSHR 1.43, 95% CI 1.06 to 1.93 for those born in non-Nordic countries). In the gender-stratified analyses, being single or divorced, and born in another Nordic country was associated with a higher risk of suicide among men. Educational and occupational history and being born in a non-Nordic country influenced risk of suicidal behaviours in women.

CONCLUSION

Suicidal behaviours occurred more commonly among new users who were 'younger' old adults and those with foreign background, suggesting that those groups might require greater support when initiating antidepressant therapy. Our findings suggest the need for gender-specific, multifaceted approaches to the prevention of suicidal behaviours in late life.

Mortality and causes of death among the migrant population of Finland in 2011-13

Background

Lower mortality among migrants than in the general population has been found in many, but not in all, previous studies. The mortality of migrants has not been studied in Finland, which has a relatively small and recent migrant population.

Methods

People who were born abroad and whose mother tongue is not Finnish were identified from the Finnish Central Population Register (n = 185 605). A Finnish-born control matched by age, sex and place of residence was identified for each case (n = 185 605). Information about deaths was collected from the Finnish Causes of Death Register. Cox proportional hazards model was used for assessing the association between migrant status and death in 2011–13.

Results

The mortality risk was found to be significantly lower for migrants than for Finnish controls (adjusted hazard ratio 0.77, 95% CI 0.72–0.84), both for migrant men (aHR 0.80, 95% CI 0.73–0.89) and women (aHR 0.78, 95% CI 0.70–0.88). The difference was statistically significant only among people who were not married and among people who were not in employment. There was variation by country of birth, but no migrant group had higher mortality than Finnish controls. No differences in mortality were found by duration of residence in Finland. The higher mortality of Finnish controls was largely explained by alcohol-related conditions and external causes of death.

Conclusions

The mortality risk of migrants is lower than of people who were born in Finland. Possible explanations include selection and differences in substance use and other health behaviour.

Suicide and self-harm trends in recent immigrant youth in Ontario, 1996-2012: a population-based longitudinal cohort study

OBJECTIVE

To describe the trends in suicide and emergency department (ED) visits for self-harm in youth by immigration status and immigrant characteristics.

DESIGN

Population-based longitudinal cohort study from 1996 to 2012 using linked health and administrative datasets.

SETTING

Ontario, Canada.

PARTICIPANTS

Youth 10 to 24 years, living in Ontario, Canada.

EXPOSURE

The main exposure was immigrant status (recent immigrant (RI) versus long-term residents (LTR)). Secondary exposures included region of birth, duration or residence, and refugee status.

MAIN OUTCOME MEASURE

Trends over time in suicide and ED self-harm were modelled within consecutive 3-year time periods. Rate ratios were estimated using Poisson regression models.

RESULTS

2.5 to 2.9 million individuals were included per cohort period. LTR suicide rates ranged from 7.4 to 9.4/100 000 male person-years versus 2.2-3.4/100 000 females. RI's suicide rates were 2.7-7.2/100,000 male versus 1.9-2.7/100 000 female person-years. Suicide rates were lower among RI compared with LTR (adjusted relative rate (aRR)=0.70, 95% CI=0.57 to 0.85) with different mechanisms of suicide. No significant time trend in suicide rates was observed (p=0.40). ED self-harm rates for LTR and RI were highest in females (2.6-3.4/1000 LTR females versus 1.1-1.5/1000 males, 1.2-1.8/1000 RI females versus 0.4-0.6/1000 males). RI had lower rates of self-harm compared with LTR (aRR=0.60, 95% CI=0.56 to 0.65). Stratum-specific rates showed a steeper decline per period in RI compared with LTR (RI: aRR=0.85, 95% CI=0.81 to 0.89; LTR: aRR=0.91, 95% CI=0.90 to 0.93). Observed trends were not universal across region of origin and by refugee status.

INTERPRETATION

Suicide rates have been stable and ED self-harm rates are declining over time among RI youth. These trends by important subgroups should continue to be monitored to allow for early identification of subpopulations of immigrant youth in need of targeted and culturally appropriate public health interventions.

The "Hispanic mortality paradox" revisited: Meta-analysis and meta-regression of life-course differentials in Latin American and Caribbean immigrants' mortality

The literature on immigrant health has repeatedly reported the paradoxical finding, where immigrants from Latin American countries to OECD countries appear to enjoy better health and greater longevity, compared with the local population in the host country. However, no previous meta-analysis has examined this effect focusing specifically on immigrants from Latin America (rather than Hispanic ethnicity) and we still do not know enough about the factors that may moderate the relationship between immigration and mortality. We conducted meta-analyses and meta-regressions to examine 123 all-cause mortality risk estimates and 54 cardiovascular mortality risk estimates from 28 publications, providing data on almost 800 million people. The overall results showed that the mean rate ratio (RR) for immigrants vs. controls was 0.92 (95% CI, 0.84-1.01) for all-cause mortality and 0.73 (CI, 0.67-0.80) for cardiovascular mortality. While the overall results suggest no immigrant mortality advantage, studies that used only native born persons as controls did find a significant all-cause mortality advantage (RR, 0.86; 95% CI, 0.76-0.97). Furthermore, we found that the relative risk of mortality largely depends on life course stages. While the mortality advantage is apparent for working-age immigrants, it is not significant for older-age immigrants and the effect is reversed for children and adolescents.

Meaning in Life and Suicidal Tendency Among Immigrant (Ethiopian) Youth and Native-Born Israeli Youth

The impact of meaning in life, or lack thereof, on suicidal tendencies among populations at greater risk-youth born to immigrants from developing countries, in this case Ethiopia-in comparison to native-born Israeli youth was examined among 277 adolescents-162 of Israeli origin and 115 of Ethiopian origin-aged 15-18. (1) Overall significant negative correlation between meaning in life and suicidal tendencies was found; (2) no difference was found in meaning in life between immigrant and native-born youth; (3) higher suicidal tendency, anxiety and depression were found among immigrants, with boys displaying more anxiety than girls. No difference in depression was detected between Ethiopian boys and girls. Meaning in life is crucial to minimizing suicidal tendencies among youth, native-born and immigrant alike. Establishment of prevention, intervention and therapy plans in the age range crucial for suicide. Such programs should be based upon finding meaning in life.

Suicidality among immigrants: Application of the interpersonal-psychological theory

Immigrants constitute a significant percentage of the total population living in the United States; however, there is a paucity of research unique to suicidality among immigrants. The present article examines the applicability of the three variables of the interpersonal-psychological theory of suicidal behavior-acquired capability for suicide, sense of thwarted belongingness, and perceived burdensomeness-to conceptualize, assess, and treat suicidality among immigrants. Risk and protective factors and mechanisms are discussed in the context of 2 case studies and immigrant paradox. Clinical implications include assessment and treatment of immigrant-specific experiences. Obstacles to treatment and future research directions are presented.

Are immigrants responsible for the recent decline in Australian suicide rates?

AIMS

This study aims to examine Queensland suicide trends in the Australian-born population and in the overseas-born populations over the past 2 decades.

METHODS

All suicide cases for the period 1991-2009 were identified in the Queensland Suicide Register. Age-standardised suicide rates were calculated. Joinpoint regression and Poisson regression were applied.

RESULTS

A significant decline in suicide rates of young (15-44 years) overseas-born males was reported over the past 2 decades. Australian-born young males showed significant increase until 1996, followed by a significant decline; furthermore, their suicide rates were significantly higher when compared to overseas-born (RR = 1.36, 95%CI: 1.15; 1.62). Contrary older Australian-born males (45+ years) had significantly lower suicide rates than overseas-born males (RR = 0.90, 95%CI: 0.83; 0.98). Despite the convergence of the suicide trends for older males, changes were not significant. While Australian-born females had a significant increase in suicides, overseas-born females had a decline in 1991-2009.

CONCLUSION

Significantly declining suicide rates of migrants have contributed to the declining in suicide trends in Queensland. Potential reasons for significantly lower suicide rates among young migrants might include the change in the nature of migration from involuntary to voluntary.

Suicide among first-generation and second-generation immigrants in Sweden: association with labour market marginalisation and morbidity

BACKGROUND

Previous research suggests that first-generation immigrants have a lower suicide risk than those both born in Sweden and with both parents born in Sweden (natives), while the suicide risk in the second generation seems higher. The aim of this study was to investigate to what extent suicide risk in first-generation and second-generation (both parents born abroad) and intermediate-generation (only one parent born abroad) immigrants compared with natives is associated with sociodemographic factors, labour market marginalisation and morbidity.

METHODS

A prospective population-based cohort study of 4 034 728 individuals aged 16-50 years was followed from 2005 to 2010. HRs for suicide were calculated for first-generation, intermediate-generation and second-generation immigrants compared with natives. Analyses were controlled for sociodemographic factors, morbidity and labour market marginalisation.

RESULTS

The HR of suicide was significantly lower in first-generation immigrants (HR 0.83 CI 0.76 to 0.91), and higher in second-generation (HR 1.32, CI 1.15 to 1.52) and intermediate-generation immigrants (HR 1.20, CI 1.08 to 1.33) in comparison to natives. The excess risk was explained by differences in sociodemographics, morbidity and labour market marginalisation. In the fully adjusted models, a higher HR remained only for the Nordic second generation (HR 1.29, CI 1.09 to 1.52). There were no sex differences in HRs.

CONCLUSIONS

The risk of suicide was shown to be lower in the first generation and higher in the second generation compared with natives. The higher HR in the Nordic second generation was not explained by differences in sociodemographics, labour market marginalisation and morbidity. Further research is warranted to investigate factors underlying this excess risk.

Suicide among immigrants in Europe--a systematic literature review

BACKGROUND

Concerns about increased suicide risk among immigrants to European countries have been raised. We review the scientific literature on differences in suicide among immigrants compared with the majority populations in Europe's major immigration countries.

METHODS

We searched the databases PubMed and PsycINFO for peer-reviewed epidemiological studies published in 1990-2011, which compared suicide risks of adult immigrant groups with the risks of the majority population in European countries. Hits were screened by two researchers.

RESULTS

We included 24 studies in the review. No generalizable pattern of suicide among immigrants was found. Immigrants from countries in which suicide risks are particularly high, i.e. countries in Northern and Eastern Europe, experienced higher suicide rates relative to groups without migration background. Gender and age differences were observed. Young female immigrants from Turkey, East Africa and South Asia are a risk group.

CONCLUSION

Immigrants 'bring along' their suicide risk, at least for the initial period they spend in the immigration country. Health-care planners and providers need to be aware of this 'imported risks'. However, most immigrant groups do not have an increased suicide risk relative to the local-born population; some may even experience substantially lower risks.

An ecological study on suicide and homicide in Brazil

The objective was to evaluate correlations between suicide, homicide and socio-demographic variables by an ecological study. Mortality and socio-demographic data were collected from official records of the Ministry of Health and IBGE (2010), aggregated by state (27). The data were analyzed using correlation techniques, factor analysis, principal component analysis with a varimax rotation and multiple linear regression. Suicide age-adjusted rates for the total population, men and women were 5.0, 8.0, and 2.2 per 100,000 inhabitants respectively. The suicide rates ranged from 2.7 in Pará to 9.1 in Rio Grande do Sul. Homicide for the total population, men and women were 27.2, 50.8, and 4.5 per 100,000, respectively. The homicide rates ranged from 13.0 in Santa Catarina to 68.9 in Alagoas. Suicide and homicide were negatively associated, the significance persisted among men. Unemployment was negatively correlated with suicide and positively with homicide. Different socio-demographic variables were found to correlate with suicide and homicide in the regressions. Suicide showed a pattern suggesting that, in Brazil, it is related to high socioeconomic status. Homicide seemed to follow the pattern found in other countries, associated with lower social and economic status.

Suicide rates and trends in São Paulo, Brazil, according to gender, age and demographic aspects: a joinpoint regression analysis

OBJECTIVE

To evaluate suicide rates and trends in São Paulo by sex, age-strata, and methods.

METHODS

Data was collected from State registry from 1996 to 2009. Population was estimated using the National Census. We utilized joinpoint regression analysis to explore temporal trends. We also evaluated marital status, ethnicity, birthplace and methods for suicide.

RESULTS

In the period analyzed, 6,002 suicides were accrued with a rate of 4.6 per 100,000 (7.5 in men and 2.0 in women); the male-to-female ratio was around 3.7. Trends for men presented a significant decline of 5.3% per year from 1996 to 2002, and a significant increase of 2.5% from 2002 onwards. Women did not present significant changes. For men, the elderly (> 65 years) had a significant reduction of 2.3% per year, while younger men (25-44 years) presented a significant increase of 8.6% from 2004 onwards. Women did not present significant trend changes according to age. Leading suicide methods were hanging and poisoning for men and women, respectively. Other analyses showed an increased suicide risk ratio for singles and foreigners.

CONCLUSIONS

Specific epidemiological trends for suicide in the city of São Paulo that warrant further investigation were identified. High-risk groups - such as immigrants - could benefit from targeted strategies of suicide prevention.

Suicide of first-generation immigrants in Australia, 1974-2006

PURPOSE

This study analysed suicide rates among first-generation immigrants in Australia from 1974 to 2006, and compared their suicide risks against the Australian-born population. It also examined the associations between the suicide rates of immigrants from 23 selected countries of birth during 2001-2006, and in their home countries.

METHOD

Age-standardised suicide rates (15+ years) and rate ratios, with a 95 % confidence interval, during 1974-2006 were calculated for country of birth (COB) groups. Spearman's rank correlation coefficient was calculated between COB-specific immigrant suicide rates during 2001-2006 in Australia and in their homelands.

RESULTS

Suicide rates showed a decreasing time-trend among all COB groups for both genders in Australia. The lowest suicide rates were found during 2004-2006, compared to other year groups. Throughout the study period, males born in Eastern, Northern and Western Europe and New Zealand had the highest suicide rates in Australia. For females, the highest rates were among those born in Western Europe and the UK (including Ireland). Male and female migrants born in North Africa and the Middle East, Southern and Central Asia and South East Asia showed the lowest suicide rates. There was a significant correlation between male immigrant suicide rates by COB and the rates of their home countries.

CONCLUSION

The patterns of suicide rates in immigrants were influenced by the social and cultural norms of their COB. The overall decrease in suicide risk among immigrants was particularly evident in males.

Attempted suicide among immigrants in European countries: an international perspective

PURPOSE

This study compares the frequencies of attempted suicide among immigrants and their hosts, between different immigrant groups, and between immigrants and their countries of origin.

METHODS

The material, 27,048 persons, including 4,160 immigrants, was obtained from the WHO/EURO Multicentre Study on Suicidal Behaviour, the largest available European database, and was collected in a standardised manner from 11 European centres in 1989-2003. Person-based suicide-attempt rates (SARs) were calculated for each group. The larger immigrant groups were studied at each centre and compared across centres. Completed-suicide rates of their countries of origin were compared to the SARs of the immigrant groups using rank correlations.

RESULTS

27 of 56 immigrant groups studied showed significantly higher, and only four groups significantly lower SARs than their hosts. Immigrant groups tended to have similar rates across different centres. Moreover, positive correlation between the immigrant SAR and the country-of-origin suicide rate was found. However, Chileans, Iranians, Moroccans, and Turks displayed high SARs as immigrants despite low suicide rates in the home countries.

CONCLUSIONS

The similarity of most immigrant groups' SARs across centres, and the correlation with suicidality in the countries of origin suggest a strong continuity that can be interpreted in either cultural or genetic terms. However, the generally higher rates among immigrants compared to host populations and the similarity of the rates of foreign-born and those immigrants who retained the citizenship of their country of origin point to difficulties in the acculturation and integration process. The positive correlation found between attempted and completed suicide rates suggests that the two are related, a fact with strong implications for suicide prevention.

Familial clustering of suicide risk: a total population study of 11.4 million individuals

BACKGROUND

Research suggests that suicidal behaviour is aggregated in families. However, due to methodological limitations, including small sample sizes, the strength and pattern of this aggregation remains uncertain.

METHOD

We examined the familial clustering of completed suicide in a Swedish total population sample. We linked the Cause of Death and Multi-Generation Registers and compared suicide rates among relatives of all 83 951 suicide decedents from 1952-2003 with those among relatives of population controls.

RESULTS

Patterns of familial aggregation of suicide among relatives to suicide decedents suggested genetic influences on suicide risk; the risk among full siblings (odds ratio 3.1, 95% confidence interval 2.8-3.5, 50% genetic similarity) was higher than that for maternal half-siblings (1.7, 1.1-2.7, 25% genetic similarity), despite similar environmental exposure. Further, monozygotic twins (100% genetic similarity) had a higher risk than dizygotic twins (50% genetic similarity) and cousins (12.5% genetic similarity) had higher suicide risk than controls. Shared (familial) environmental influences were also indicated; siblings to suicide decedents had a higher risk than offspring (both 50% genetically identical but siblings having a more shared environment, 3.1, 2.8-3.5 v. 2.0, 1.9-2.2), and maternal half-siblings had a higher risk than paternal half-siblings (both 50% genetically identical but the former with a more shared environment). Although comparisons of twins and half-siblings had overlapping confidence intervals, they were supported by sensitivity analyses, also including suicide attempts.

CONCLUSIONS

Familial clustering of suicide is primarily influenced by genetic and also shared environmental factors. The family history of suicide should be considered when assessing suicide risk in clinical settings or designing and administering preventive interventions.

Resilience and mental health

The relationship between disease and good health has received relatively little attention in mental health. Resilience can be viewed as a defence mechanism, which enables people to thrive in the face of adversity and improving resilience may be an important target for treatment and prophylaxis. Though resilience is a widely-used concept, studies vary substantially in their definition, and measurement. Above all, there is no common underlying theoretical construct to this very heterogeneous research which makes the evaluation and comparison of findings extremely difficult. Furthermore, the varying multi-disciplinary approaches preclude meta-analysis, so that clarification of research in this area must proceed firstly by conceptual unification. We attempt to collate and classify the available research around a multi-level biopsychosocial model, theoretically and semiotically comparable to that used in describing the complex chain of events related to host resistance in infectious disease. Using this underlying construct we attempt to reorganize current knowledge around a unitary concept in order to clarify and indicate potential intervention points for increasing resilience and positive mental health.

Suicide

Suicide receives increasing attention worldwide, with many countries developing national strategies for prevention. Rates of suicide vary greatly between countries, with the greatest burdens in developing countries. Many more men than women die by suicide. Although suicide rates in elderly people have fallen in many countries, those in young people have risen. Rates also vary with ethnic origin, employment status, and occupation. Most people who die by suicide have psychiatric disorders, notably mood, substance-related, anxiety, psychotic, and personality disorders, with comorbidity being common. Previous self-harm is a major risk factor. Suicide is also associated with physical characteristics and disorders and smoking. Family history of suicidal behaviour is important, as are upbringing, exposure to suicidal behaviour by others and in the media, and availability of means. Approaches to suicide prevention include those targeting high-risk groups and population strategies. There are, however, many challenges to large-scale prevention, especially in developing countries.

The gap between suicide characteristics in the print media and in the population

BACKGROUND

Programmes to educate media professionals about suicide are increasingly established, but information about which suicide cases are most likely to be reported in the mass media is sparse.

METHODS

We applied binomial tests to compare frequencies of social characteristics of all domestic suicides in the 13 largest Austrian print media in 2005 with frequencies of suicide characteristics in the population. Additionally, each reported suicide case was linked to its respective entry in the suicide database. We performed a logistic regression analysis, with presence of an article as outcome, and sex of the suicide case, age, religious affiliation, family status, conduction of an autopsy and location of the suicide as explaining variables. Time of the year and federal state where the suicide happened was controlled for.

RESULTS

Binomial tests showed that suicides involving murder or murder attempt were over-represented in the media. Reporting on mental disorders was under-represented. In the regression analysis, the likelihood of a report was negatively associated with the age of suicide cases. Foreign citizenship was a further predictor of a suicide report. The methods of drowning, jumping, shooting and rare methods were more likely to be reported than hanging, which is the most frequent suicide method in Austria.

CONCLUSIONS

Suicide characteristics in the media are not representative of the population. The identified discrepancies provide a basis for tailor-made education of mass media professionals.

The beliefs in the inheritance of risk factors for suicide scale (BIRFSS): cross-cultural validation in Estonia, Malaysia, Romania, the United Kingdom, and the United States

The genetics of suicide is increasingly recognized and relevant for mental health literacy, but actual beliefs may lag behind current knowledge. We examined such beliefs in student samples (total N = 686) from Estonia, Malaysia, Romania, the United Kingdom, and the United States with the Beliefs in the Inheritance of Risk Factors for Suicide Scale. Cultural effects were small, those of key demographics nil. Several facets of construct validity were demonstrated. Marked differences in perceived plausibility of evidence about the genetics of suicide according to research design, observed in all samples, may be of general interest for investigating lay theories of abnormal behavior and communicating behavioral and psychiatric genetic research findings.