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

Initiation of antipsychotic medication among refugees, non-refugee migrants, second-generation migrants, and Swedish-born adults with incident non-affective psychotic disorders

BACKGROUND

It is not known if there are differences in antipsychotic initiation between migrants and native-born individuals diagnosed with non-affective psychotic disorder. This study aimed to determine (1) potential differences in initiation rate and type of first antipsychotic medication between refugees, non-refugee migrants, second-generation migrants, and Swedish-born young adults with incident non-affective psychosis and (2) which sociodemographic and clinical factors are associated with initiation.

METHODS

This register-based cohort included 12,960 adults aged 18-35 years, residing in Sweden during 2007-2018, with an incident diagnosis of a non-affective psychotic disorder in inpatient or specialised outpatient care. Sociodemographic and clinical factors associated with antipsychotic initiation were determined using modified Poisson regression models yielding Relative Risk, RRs, and 95% Confidence Intervals, CI.

RESULTS

Initiation of antipsychotic use was slightly less common among refugees (65.6%) compared to non-refugee migrants (70.2%), second-generation migrants (71.0%), and Swedish-born individuals (71.1%). However, after adjustment for sociodemographic and clinical factors, there was no difference in initiation rates between refugees and Swedish-born individuals (adjusted RR 0.96; 95% CI 0.92-1.00). Olanzapine was most common initial antipsychotic in all groups. However, compared to the Swedish-born, refugees (1.47; 1.10-1.97), non-refugee migrants (1.70; 1.26-2.27) and second-generation migrants (1.43; 1.05-1.97) were more likely to initiate the use with long-acting injectable antipsychotics, and also with first-generation antipsychotics, particularly haloperidol. Sociodemographic factors associated with initiation were similar among refugees and Swedish-born individuals, including younger age, higher education and inpatient care.

CONCLUSION

Our finding that migrants were more likely to initiate long-acting antipsychotics suggests that clinical teams anticipate medication non-adherence among migrants.

Ethnicity and suicide in England and Wales: a national linked cohort study

BACKGROUND

Understanding of ethnic disparities in suicide in England and Wales is poor as ethnicity is not recorded on death certificates. Using linked data, we examined variations, by sex, in suicide rates in England and Wales by ethnicity and migrant and descendant status.

METHODS

Using the Office for National Statistics 2012-19 mortality data linked to the 2011 census from the Public Health Research Database, we calculated the age-standardised suicide rates by sex for each of the 18 self-identified ethnicity groups in England and Wales. We present rates by age, sex, and methods used for suicide by ethnic group. We estimated age-adjusted and sex-adjusted incidence rate ratios (IRRs) using Poisson regression models for each minority ethnic group compared with the majority population. We involved people with lived experience in the research.

FINDINGS

Overall, 31 644 suicide deaths occurred over the study period, including 3602 (11%) in people from minority ethnic backgrounds, with a mean age of death of 43·3 years (SD 17·0, range 13-96). Almost all minority ethnic groups had a lower rate of suicide than the White British majority, apart from individuals who identified as being from a Mixed heritage background or White Gypsy or Irish Travellers. In females who identified as Mixed White and Caribbean, the suicide IRR was 1·79 (95% CI 1·45-2·21) compared with the White British majority; in those who identified as White Gypsy or Irish Travellers, the IRR was 2·26 (1·42-3·58). Rates in males identifying as from these two groups and those identifying as White Irish were similar to the White British majority. Compared with the non-migrant population, migrants had a lower rate of suicide regardless of ethnicity, but in the descendant population, people from a Mixed ethnicity background had a higher risk of suicide than the White British majority.

INTERPRETATION

There are ethnic disparities in suicide mortality in England and Wales, but the reasons for this are unclear. The higher rate in previously overlooked minority ethnic groups warrants further attention.

FUNDING

Wellcome Trust.

Elevated mortality among the second-generation (children of migrants) in Europe: what is going wrong? A review

INTRODUCTION

The 'second-generation' (i.e. the children of migrants) represent one of the fastest growing subpopulations of the child and young adult populations in Europe today. The research so far appears to indicate that their mortality risk is elevated relative to people with non-migrant backgrounds.

SOURCES OF DATA

Peer-reviewed publications.

AREAS OF AGREEMENT

Second-generation status is a clear marker of elevated mortality risk in Europe in early life (including stillbirth, perinatal, neonatal and infant mortality) and adulthood, particularly if the parent(s) were born outside of Europe. Socioeconomic inequality plays an important, albeit rarely defining, role in these elevated risks.

AREAS OF CONTROVERSY

It remains unclear what causes-of-death are driving these elevated mortality risks. The exact influence of (non-socioeconomic) explanatory factors (e.g. health care, racism & discrimination, and factors related to integration) on the elevated mortality risks of the second-generation also remains unclear.

GROWING POINTS

The second-generation will continue to grow and diversify in Europe; we must intervene to address these inequalities now.

AREAS TIMELY FOR DEVELOPING RESEARCH

Place more emphasis on the complexity of migration background, specific causes-of-death, and understanding the roles of explanatory factors beyond socioeconomic background.

Immigrant-origin youths at risk: Trends in suicidal behaviors among Korean adolescents by immigrant origins and ethnic options (2011-2019)

BACKGROUND

In line with the immigrant paradox, immigrants' health advantages disappear among second-generation immigrant-origin youths, including a high prevalence of suicidal behaviors. Nevertheless, the secular trend in suicidal behaviors among immigrants in South Korea has not been examined. While Korean society was once considered homogeneous, intra-Asian migration has increased in recent decades. It is needed to explore the relationship between ethnic options and mental health outcomes among immigrant-origin youths, including suicidal behaviors.

METHODS

Using the nationally representative Korean Youth Risk Behavior Survey from 2011 to 2019 (600,541 non-immigrant-origin and 6,085 immigrant-origin), we examined the rates of suicidal behaviors to identify trends among youths with/without immigrant-origin and depending on the visibility of their immigrant-origin. Then, we conducted logistic regression to examine whether visibility is associated with higher suicidal behaviors among immigrant-origin youths.

RESULTS

Overall, suicidal behaviors have declined, but immigrant-origin youths showed higher levels of suicidal behaviors than non-immigrant-origin youths. Visible minority youths showed higher suicidal behaviors than their invisible counterparts, particularly in suicidal planning and suicide attempts. Among immigrant-origin youths, visible minority status was associated with higher suicidal thoughts, plans, and attempts, controlling for socio-economic factors. Furthermore, female immigrant-origin youths show higher suicidal behaviors than their male counterparts.

CONCLUSIONS

The results suggest that data disaggregation is needed when examining the mental health of immigrant-origin youths. Practitioners and policymakers should pay particular attention to immigrant-origin youths and recognize that their visibility may be associated with their risk of suicidal behaviors. Targeted intervention is also required for female visible minority youths.

Mortality Advantage Reversed: The Causes of Death Driving All-Cause Mortality Differentials Between Immigrants, the Descendants of Immigrants and Ancestral Natives in Sweden, 1997-2016

A small but growing body of studies have documented the alarming mortality situation of adult descendants of migrants in a number of European countries. Nearly all of them have focused on all-cause mortality to reveal these important health inequalities. This paper takes advantage of the Swedish population registers to study all-cause and cause-specific mortality among men and women aged 15-44 in Sweden from 1997 to 2016 to a level of granularity unparalleled elsewhere. It adopts a multi-generation, multi-origin and multi-cause-of-death approach. Using extended, competing-risks survival models, it aims to show (1) how the all-cause mortality of immigrants arriving as adults (the G1), immigrants arriving as children (the G1.5) and children of immigrants born in Sweden to at least one immigrant parent (the G2) differs versus ancestral Swedes and (2) what causes-of-deaths drive these differentials. For all-cause mortality, most G1 (not Finns or Sub-Saharan Africans) have a mortality advantage. This contrasts with a near systematic reversal in the mortality of the G1.5 and G2 (notably among men), which is driven by excess accident and injury, suicide, substance use and other external cause mortality. Given that external causes-of-death are preventable and avoidable, the findings raise questions about integration processes, the levels of inequality immigrant populations are exposed to in Sweden and ultimately, whether the legacy of immigration has been positive. Strengths of the study include the use of quality data and advanced methods, the granularity of the estimates, and the provision of evidence that highlights the precarious mortality situation of the seldom-studied G1.5.

Has the COVID-19 pandemic influenced suicide rates differentially according to socioeconomic indices and ethnicity? More evidence is needed globally

The COVID-19 pandemic has harmed many people's mental health globally. Whilst the evidence generated thus far from high-income countries regarding the pandemic's impact on suicide rates is generally reassuring, we know little about its influence on this outcome in lower- and middle-income countries or among marginalised and disadvantaged people. There are some signals for concern regarding the pandemic's potentially unequal impact on suicide rates, with some of the affected demographic subgroups and regions being at elevated risk before the pandemic began. However, the evidence-base for this topic is currently sparse, and studies conducted to date have generally not taken account of pre-pandemic temporal trends. The collection of accurate, complete and comparable data on suicide rate trends in ethnic minority and low-income groups should be prioritised. The vulnerability of low-income groups will likely be exacerbated further by the current energy supply and cost-of-living crises in many countries. It is therefore crucial that reassuring messaging highlighting the stability of suicide rates during the pandemic does not lead to complacency among policymakers.

Suicide rates amongst individuals from ethnic minority backgrounds: A systematic review and meta-analysis

BACKGROUND

Existing evidence suggests that some individuals from ethnic minority backgrounds are at increased risk of suicide compared to their majority ethnic counterparts, whereas others are at decreased risk. We aimed to estimate the absolute and relative risk of suicide in individuals from ethnic minority backgrounds globally.

METHODS

Databases (Medline, Embase, and PsycInfo) were searched for epidemiological studies between 01/01/2000 and 3/07/2020, which provided data on absolute and relative rates of suicide amongst ethnic minority groups. Studies reporting on clinical or specific populations were excluded. Pairs of reviewers independently screened titles, abstracts, and full texts. We used random effects meta-analysis to estimate overall, sex, location, migrant status, and ancestral origin, stratified pooled estimates for absolute and rate ratios. PROSPERO registration: CRD42020197940.

FINDINGS

A total of 128 studies were included with 6,026,103 suicide deaths in individuals from an ethnic minority background across 31 countries. Using data from 42 moderate-high quality studies, we estimated a pooled suicide rate of 12·1 per 100,000 (95% CIs 8·4-17·6) in people from ethnic minority backgrounds with a broad range of estimates (1·2-139·7 per 100,000). There was weak statistical evidence from 51 moderate-high quality studies that individuals from ethnic minority groups were more likely to die by suicide (RR 1·3 95% CIs 0·9-1·7) with again a broad range amongst studies (RR 0·2-18·5). In our sub-group analysis we only found evidence of elevated risk for indigenous populations (RR: 2·8 95% CIs 1·9-4·0; pooled rate: 23·2 per 100,000 95% CIs 14·7-36·6). There was very substantial heterogeneity (I²  > 98%) between studies for all pooled estimates.

INTERPRETATION

The homogeneous grouping of individuals from ethnic minority backgrounds is inappropriate. To support suicide prevention in marginalised groups, further exploration of important contextual differences in risk is required. It is possible that some ethnic minority groups (for example those from indigenous backgrounds) have higher rates of suicide than majority populations.

FUNDING

No specific funding was provided to conduct this research. DK is funded by Wellcome Trust and Elizabeth Blackwell Institute Bristol. Matthew Spittal is a recipient of an Australian Research Council Future Fellowship (project number FT180100075) funded by the Australian Government. Rebecca Musgrove is funded by the NIHR Greater Manchester Patient Safety Translational Research Centre (PSTRC-2016-003).

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.

Prevalence of suicidal ideation and suicide attempts among refugees: a meta-analysis

BACKGROUND

Suicidal ideation and attempts are one of the most serious mental health problems affecting refugees. Risk factors such as mental disorders, low socio-economic status, and stressful life events all contribute to making refugees a high-risk group. For this reason, this meta-analysis aims to investigate the prevalence of suicidal ideation and attempts among refugees in non-clinical populations.

METHOD

We searched PubMed, Web of Science, PubPsych, and PsycInfo for articles reporting (period) prevalence rates of suicidal ideation and attempts. Inclusion criteria were the population of refugees or asylum seekers (aged 16 years and older), assessment of the prevalence of suicidal ideation and attempts in empirical studies in cross-sectional or longitudinal settings, written in English, and published by August 2020. Exclusion criteria were defined as a population of immigrants who have lived in the host country for a long time, studies that examined children and adolescents younger than 16 years, and research in clinical samples. Overall prevalence rates were calculated using Rstudio.

RESULTS

Of 294 matches, 11 publications met the inclusion criteria. The overall period prevalence of suicidal ideation was 20.5% (CI: 0.11-0.32, I2 = 98%, n = 8), 22.3% (CI: 0.10-0.38, I2 = 97%, n = 5) for women, and 27.7% for men (CI: 0.14-0.45, I2 = 93%, n = 3). Suicide attempts had an overall prevalence of 0.57% (CI: 0.00-0.02, I2 = 81%, n = 4).

CONCLUSION

There is a great lack of epidemiological studies on suicidal ideation and attempts among refugees. The high prevalence of suicidal ideation indicates the existence of heavy psychological burden among this population. The prevalence of suicide attempts is similar to that in non-refugee populations. Because of the large heterogeneity between studies, the pooled prevalence estimates must be interpreted with caution. The results underline the need for systematic and standardized assessment and treatment of suicidal ideation and attempts.

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.

Suicide attempt and violence victimization in Korean adolescents with migrant parents: A nationwide study

BACKGROUND

Suicide and violence exposure are important health related issues in adolescents. This study aimed to investigate suicide attempt and violence victimization in Korean adolescents with migrant parents.

METHODS

Data from the 2016 to 2018 Korea Youth Risk Behavior Web-based Survey (KYRBS) were used. The migration status of the participating students' parents was defined based on parental birthplace, classified into the 'both native Korean parents,' 'mother born abroad,' 'father born abroad,' and 'both parents born abroad' groups. Suicide attempt and violence victimization included events that occurred in the past 12 months. The general characteristics of the population were investigated using chi-square test. The association between dependent and independent variables was examined using multiple logistic regression analysis, expressed as Odds Ratio (OR) and their 95 percent confidence interval (95% CI).

RESULTS

Of the 170,575 study participants, 4,012 (2.4%) attempted suicide and 3,038 (1.8%) experienced violence victimization. Highest proportions of suicide attempt and violence victimization were found in adolescents with both migrated parents born abroad. Compared to adolescents with both native Korean parents, individuals with both migrated parents were more likely to attempt suicide (OR 2.28, 95% CI 1.37-3.81) and experience violence victimization (OR 5.63, 95% CI 3.73-8.48).

LIMITATIONS

This study was cross-sectional in design. Information was unavailable on which immigrant generation the study participants belonged to.

CONCLUSION

Adolescents with both migrated parents were more likely to attempt suicide and experience violence victimization. The findings have important implications in the management of suicide and violence victimization in adolescents.

Suicide attempt and suicide in refugees in Sweden - a nationwide population-based cohort study

BACKGROUND

Despite a reported high rate of mental disorders in refugees, scientific knowledge on their risk of suicide attempt and suicide is scarce. We aimed to investigate (1) the risk of suicide attempt and suicide in refugees in Sweden, according to their country of birth, compared with Swedish-born individuals and (2) to what extent time period effects, socio-demographics, labour market marginalisation (LMM) and morbidity explain these associations.

METHODS

Three cohorts comprising the entire population of Sweden, 16-64 years at 31 December 1999, 2004 and 2009 (around 5 million each, of which 3.3-5.0% refugees), were followed for 4 years each through register linkage. Additionally, the 2004 cohort was followed for 9 years, to allow analyses by refugees' country of birth. Crude and multivariate hazard ratios (HRs) with 95% confidence intervals (CIs) were computed. The multivariate models were adjusted for socio-demographic, LMM and morbidity factors.

RESULTS

In multivariate analyses, HRs regarding suicide attempt and suicide in refugees, compared with Swedish-born, ranged from 0.38-1.25 and 0.16-1.20 according to country of birth, respectively. Results were either non-significant or showed lower risks for refugees. Exceptions were refugees from Iran (HR 1.25; 95% CI 1.14-1.41) for suicide attempt. The risk for suicide attempt in refugees compared with the Swedish-born diminished slightly across time periods.

CONCLUSIONS

Refugees seem to be protected from suicide attempt and suicide relative to Swedish-born, which calls for more studies to disentangle underlying risk and protective factors.

Suicide risk among refugees compared with non-refugee migrants and the Swedish-born majority population

BACKGROUND

It has been hypothesised that refugees have an increased risk of suicide.

AIMS

To investigate whether risk of suicide is higher among refugees compared with non-refugee migrants from the same areas of origin and with the Swedish-born population, and to examine whether suicide rates among migrants converge to the Swedish-born population over time.

METHOD

A population-based cohort design using linked national registers to follow 1 457 898 people born between 1 January 1970 and 31 December 1984, classified by migrant status as refugees, non-refugee migrants or Swedish-born. Participants were followed from their 16th birthday or date of arrival in Sweden until death, emigration or 31 December 2015, whichever came first. Cox regression models estimated adjusted hazard ratios for suicide by migrant status, controlling for age, gender, region of origin and income.

RESULTS

There were no significant differences in suicide risk between refugee and non-refugee migrants (hazard ratio 1.28, 95% CI 0.93-1.76) and both groups had a lower risk of suicide than Swedish born. During their first 5 years in Sweden no migrants died by suicide; however, after 21-31 years their suicide risk was equivalent to the Swedish-born population (hazard ratio 0.94, 95% CI 0.79-1.22). After adjustment for income this risk was significantly lower for migrants than the Swedish-born population.

CONCLUSIONS

Being a refugee was not an additional risk factor for suicide. Our findings regarding temporal changes in suicide risk suggest that acculturation and socioeconomic deprivation may account for a convergence of suicide risk between migrants and the host population over time.

DECLARATION OF INTEREST

None.

Mental disorders, suicide attempt and suicide: differences in the association in refugees compared with Swedish-born individuals

BACKGROUND

Mental disorders are associated with an elevated risk for suicide attempt and suicide. Whether the strength of the associations also holds for refugees is unclear.

AIMS

To examine the relationship between specific mental disorders and suicide attempt and suicide in refugees and Swedish-born individuals.

METHOD

This longitudinal cohort study included 5 083 447 individuals aged 16-64 years, residing in Sweden in 2004, where 196 757 were refugees. Mental disorders were defined as having a diagnosis in psychiatric care during 2000-2004. Estimates of risk of suicide attempt and suicide were calculated as hazard ratios with 95% confidence intervals. Adjustments were made for important confounding factors, including history of attempt. The reference group comprised Swedish-born individuals without mental disorders.

RESULTS

Rates for suicide attempt in individuals with a mental disorder were lower in refugees compared with Swedish-born individuals (480 v. 850 per 100 000 person-years, respectively). This pattern was true for most specific disorders: compared with the reference group, among refugees, multivariable-adjusted hazard ratios for suicide attempt ranged from 3.0 (anxiety) to 7.4 (substance misuse), and among Swedish-born individuals, from 4.9 (stress-related disorder) to 9.3 (substance misuse). For schizophrenia, bipolar disorder and personality disorder, estimates for suicide attempt were comparable between refugees and Swedish-born individuals. Similar patterns were seen for suicide.

CONCLUSIONS

For most mental disorders, refugees were less likely to be admitted to hospital for suicide attempt or die by suicide compared with Swedish-born individuals. Further research on risk and protective factors for suicide attempt and suicide among refugees with mental disorders is warranted.

DECLARATION OF INTEREST

None.

Suicide among immigrants in Germany

AIMS

The identification of high-risk groups is crucial in public health suicide prevention approaches. This study aims to compare suicide risks of Germans with nine of the largest immigrant populations living in Germany.

METHODS

Based on a German national database of mortality statistics, the number of suicides in Germans and immigrants was available for the study period (2000 - 2017), stratified for gender and age groups. Standard mortality ratios (SMR) for suicide were computed since age distributions differed between populations. Moreover, SMR of immigrant populations were correlated with potential risk and resilience factors.

RESULTS

The analysed dataset covers a period of 18 years, which translates to over 1.47 billion life years (LY) and 206,056 recorded suicides. 134,971,779 LY (10.1%) and 8,936 (4.3%) suicides were assigned to non-German citizens. SMR, calculated for nine of the largest immigrant populations, were lower compared with the German reference population ranging from 0.24 (Greek nationality) to 0.86 (Russian nationality). SMR in immigrants was highest in adolescents and declined with age. SMR was associated with country of origin (CO) suicide rates as well as with socio-economic factors of immigrant groups in Germany. With the global financial crisis, suicide risk of immigrants from the most affected countries decreased more strongly compared to immigrants from other CO.

CONCLUSIONS

The suicide risk strongly differs between the individual immigrant groups and is associated with risk factors of the respective CO. Therefore, future suicide prevention approaches in immigrants should take CO-specific vulnerabilities into account as well as age-related risk factors.

Young people's labour market patterns and later mental health: A sequence analysis exploring the role of region of origin for young people's labour market trajectories and mental health

•

Experiencing early employment disadvantage could lead to long-term labour market instability and labour market exclusion.

•

Migrants showed more turbulent transitions between labour market states than natives.

•

Belonging to a turbulent labour market trajectory is association with poor mental ill health in mid-life.

Previous suicide attempt and subsequent risk of re-attempt and suicide: Are there differences in immigrant subgroups compared to Swedish-born individuals?

BACKGROUND

Studies investigating how suicide attempting refugees and non-refugee migrants differ from Swedish-born individuals in terms of re-attempts and suicide are missing. It remains unknown how mental disorders and labour market marginalization (LMM) impact on these associations.

METHODS

This longitudinal cohort study included Swedish residents aged 20-64 with suicide attempt in 2004-2012. In total, 42,684 individuals including 2017 refugees, and 2544 non-refugee migrants were included and followed until December 31, 2016. Risks of re-attempt and suicide were calculated as hazard ratios (HR) with 95% confidence intervals (CI), and adjusted for important confounders. Stratified analyses were to assess if mental disorders or LMM modified these associations.

RESULTS

In the adjusted models, refugees had an adjusted HR (aHR) of suicide re-attempt of 0.74 (CI: 0.67-0.81), and an aHR of 0.67 (CI: 0.53-0.86) for suicide death. These estimates were very similar to those of non-refugee migrants. Refugees and non-refugee migrants with suicide attempt had a lower prevalence of specialised health care due to mental disorders compared to Swedish-born attempters (48%, 44% and 61%, respectively). Mental disorders and LMM in terms of long-term sickness absence and disability pension increased the risk of re-attempt and suicide in all three groups.

LIMITATIONS

Only suicide attempts and mental disorders resulting in specialized in-and outpatient care were registered.

CONCLUSION

Migrants show considerably lower risks of re-attempt and suicide than Swedish-born individuals, with no differences between migrant groups. Despite vast differences in the prevalence of specific mental disorders, the role of mental disorders in the pathways to re-attempt and suicide does not appear to differ considerably between these groups.

Psychological distress by age at migration and duration of residence in Sweden

Migrants suffer from worse psychological health than natives in many countries, yet the extent to which this varies by age at migration and duration of residence in the receiving context remains unexplored in Sweden. Drawing on a life course approach, we investigate differences in psychological distress by age at migration and duration of residence in working-age migrants to Sweden, and examine the role of various social determinants of health in explaining these differences relative to Swedish-born. Using pooled cross-sectional data from the 2011/2015 Health on Equal Terms survey in Västra Götaland Region, Sweden (n = 58,428), we applied logistic regression analysis to calculate predicted probabilities and average marginal effects (AME) of migrant status, by age at migration and duration of residence, on psychological distress. Analyses were stratified by sex and region of origin and controlled for indicators of socioeconomic status (SES), social cohesion, and discrimination to assess their potential contribution to differences in migrants' and natives' psychological distress. All migrants except men from OECD-predominant regions had a greater probability of psychological distress than Swedish-born (ranging from AME 0.031 [95% Confidence Interval or CI 0.000-0.062] for OECD women to AME 0.115 [95% CI 0.074-0.156] for non-OECD men). Marginal effects of migration status on psychological distress probabilities generally increased with age at migration and duration of residence. Differences between migrants and natives were largely attenuated after controlling for social determinants, the greatest contribution coming from inequalities in social cohesion, followed by inequalities in discrimination and SES. Our results suggest a relative health advantage of early-life compared to later-life migration, albeit with worse outcomes with longer residence in Sweden. The predominance of integration opportunities in childhood strengthens calls for supportive policies to assist older migrants' integration directly upon arrival, which may ultimately improve their psychological wellbeing.

Mental disorders and suicidal behavior in refugees and Swedish-born individuals: is the association affected by work disability?

BACKGROUND

Among potential pathways to suicidal behavior in individuals with mental disorders (MD), work disability (WD) may play an important role. We examined the role of WD in the relationship between MD and suicidal behavior in Swedish-born individuals and refugees.

METHODS

The study cohort consisted of 4,195,058 individuals aged 16-64, residing in Sweden in 2004-2005, whereof 163,160 refugees were followed during 2006-2013 with respect to suicidal behavior. Risk estimates were calculated as hazard ratios (HR) with 95% confidence intervals (CI). The reference groups comprised individuals with neither MD nor WD. WD factors (sickness absence (SA) and disability pension (DP)) were explored as potential modifiers and mediators.

RESULTS

In both Swedish-born and refugees, SA and DP were associated with an elevated risk of suicide attempt regardless of MD. In refugees, HRs for suicide attempt in long-term SA ranged from 2.96 (95% CI: 2.14-4.09) (no MD) to 6.23 (95% CI: 3.21-12.08) (MD). Similar associations were observed in Swedish-born. Elevated suicide attempt risks were also observed in DP. In Swedish-born individuals, there was a synergy effect between MD, and SA and DP regarding suicidal behavior. Both SA and DP were found to mediate the studied associations in Swedish-born, but not in refugees.

CONCLUSION

There is an effect modification and a mediating effect between mental disorders and WD for subsequent suicidal behavior in Swedish-born individuals. Also for refugees without MD, WD is a risk factor for subsequent suicidal behavior. Particularly for Swedish-born individuals with MD, information on WD is vital in a clinical suicide risk assessment.

Sociodemographic, labour market marginalisation and medical characteristics as risk factors for reinfarction and mortality within 1 year after a first acute myocardial infarction: a register-based cohort study of a working age population in Sweden

OBJECTIVES

Research covering a wide range of risk factors related to the prognosis during the first year after an acute myocardial infarction (AMI) is insufficient. This study aimed to investigate whether sociodemographic, labour market marginalisation and medical characteristics before/at AMI were associated with subsequent reinfarction and all-cause mortality.

DESIGN

Population-based cohort study.

PARTICIPANTS

The cohort included 15 069 individuals aged 25-64 years who had a first AMI during 2008-2010.

PRIMARY AND SECONDARY OUTCOME MEASURES

The outcome measures consisted of reinfarction and all-cause mortality within 1 year following an AMI, which were estimated by univariate and multivariable HRs and 95% CIs by Cox regression.

RESULTS

Sociodemographic characteristics such as lower education showed a 1.1-fold and 1.3-fold higher risk for reinfarction and mortality, respectively. Older age was associated with a higher risk of mortality while being born in non-European countries showed a lower risk of mortality. Labour market marginalisation such as previous long-term work disability was associated with a twofold higher risk of mortality. Regarding medical characteristics, ST-elevation myocardial infarction was predictive for reinfarction (HR: 1.14, 95% CI: 1.07 to 1.21) and all-cause mortality (HR: 3.80, 95% CI: 3.08 to 4.68). Moreover, diabetes mellitus, renal insufficiency, stroke, cancer and mental disorders were associated with a higher risk of mortality (range of HRs: 1.24-2.59).

CONCLUSIONS

Sociodemographic and medical risk factors were identified as risk factors for mortality and reinfarction after AMI, including older age, immigration status, somatic and mental comorbidities. Previous long-term work disability and infarction type provide useful information for predicting adverse outcomes after AMI during the first year, particularly for mortality.

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.

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.

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.

Employment status and risk of all-cause mortality among native- and foreign-origin persons in Sweden

Background

The association between exposure to unemployment and increased risk of mortality is well established. Yet migrants and their children often experience a number of stressors in the country of residence which could exacerbate the negative effects of job loss or unemployment. This study examined the extent to which region of origin and generational status modified associations between employment status and risk of all-cause mortality.

Methods

Using population-based registers, an open cohort of 2 178 321 individuals aged 25-64 years was followed from 1993 to 2008. Hazard ratios for mortality were calculated using Cox regression. Employment status and socio-demographic covariates were included as time-varying variables in all models.

Results

Relative to employed native-origin Swedes, excess risk of mortality was found among most groups of unemployed persons. The excess risk of mortality found among African women exposed to long-term unemployment (HR = 3.26, 95% CI: 2.30-4.63), Finnish men exposed to short-and long-term unemployment (HR = 2.74, 95% CI: 2.32-3.24 and HR = 2.39, 95% CI: 2.12-2.69), and second generation Swedish men exposed to short-term unemployment (HR = 2.34, 95% CI: 2.06-2.64) was significantly greater (P < 0.05) than that found among their unemployed native-origin counterparts. Excess risk of mortality among the unemployed in other foreign-origin groups was of a similar or lower magnitude to that found in unemployed native-origin Swedes. A decreased risk of mortality was observed among the employed in nearly all foreign-origin groups.

Conclusions

With some exceptions, mortality risk in foreign-origin individuals across all categories of employment status was generally similar to or lower than the risk observed in native-origin Swedes.

Suicide Risk among Immigrants and Ethnic Minorities: A Literature Overview

Recent studies have demonstrated that immigrants and ethnic minorities may be at higher risk of suicidal behaviour as compared to the general population. We conducted a literature search to identify studies in English from 1980 to 2017 related to suicide risk among immigrants and ethnic minorities. Six hundred and seventy-eight reports were screened, and 43 articles were included in the qualitative synthesis of the review. Some studies reported lower rates of suicide attempts, while other findings suggested higher rates of suicidal behaviour and deaths among immigrants as compared to the native population. Also, a positive correlation was found between suicidal behaviour and specific countries of origin. Non-European immigrant women were at the highest risk for suicide attempts, a group which included young women of South Asian and black African origin. Risk factors among migrants and ethnic minorities were found to be: language barriers, worrying about family back home, and separation from family. The lack of information on health care system, loss of status, loss of social network, and acculturation were identified as possible triggers for suicidal behaviour. Overall, results suggest that specific migrant populations and ethnic minorities present a higher risk of suicidal behaviour than native populations, as well as a higher risk of death by suicide.

Suicide mortality in Belgium at the beginning of the 21st century: differences according to migrant background

Background

Suicidal behaviour has long been recognized to vary widely between countries. Yet, rates of suicidal behaviour do not only vary between, but also within countries. Gender and socioeconomic differences in suicidal behaviour are well established, but the literature on suicidal behaviour and migrants is sparse, particularly in Belgium. The present study maps out the occurrence of suicide mortality across three of the largest migrant groups (Italians, Turks and Moroccans) versus the native population in Belgium, and verifies whether this association persists after accounting for socioeconomic variables.

Methods

Census-linked mortality follow-up data covering the period 2001–2011 were used to probe into suicide mortality. To compare absolute differences by migrant background, indirect standardisation analyses were carried out. To assess relative differences, Cox proportional hazards models were performed. Analyses were restricted to 18- to 64-year-olds.

Results

Belgian men and women have the highest suicide mortality risk, persons of Moroccan/Turkish origin the lowest, and Italians are somewhere in between. When migration generation is considered, the risk is higher for second-generation groups compared to that of the first-generation. Accounting for socioeconomic determinants, the difference between the native population and the various nationality groups intensifies.

Conclusion

Although the risk is generally lower for minorities compared to the majority population, the results across migration generations underscore minorities’ increased vulnerability to suicide over time. Future research should focus on understanding the risks and protective factors of suicidal behaviour across different nationality groups. This way, tailored policy recommendations can be developed in order to tackle the burden of suicide.

Risk of disability pension in first and second generation immigrants: the role of age and region of birth in a prospective population-based study from Sweden

BACKGROUND

In several countries, immigrants have higher disability pension (DP) rates than natives. Reasons for this are poorly understood. The aim of this study was to investigate if the risk of diagnosis-specific DP differed in first, second, and second/intermediate generation immigrants compared to natives, in general and across regions of birth, and stratified by age.

METHODS

A population-based prospective cohort study of all 3,507,055 individuals aged 19-50 years and living in Sweden in 2004 with a 6-year follow-up period. Hazard ratios (HR) and 95% confidence intervals (CI) for mental and somatic DP were estimated by Cox regression for first, second, and second/intermediate generation immigrants compared to natives, across regions of birth and stratified by age.

RESULTS

After multivariate adjustment, HRs for both mental and somatic DP were higher at follow-up in the first generation compared to natives: mental HR 1.17 (CI 1.12-1.22) and somatic 1.15 (1.09-1.22) for individuals <35 years; 1.74 (1.69-1.79) and 1.70 (1.66-1.74) ≥35 years (median), respectively. Immigrants born in Europe outside EU25, and countries outside Europe had particularly elevated HRs. Also in the second generation, HRs were higher in mental 1.29 (1.21-1.37) and somatic DP: 1.30 (1.19-1.42) in those <35 years; and 1.18 (1.10-1.27); and 1.10 (1.03-1.17) for those ≥35 years, respectively. Among second generation immigrants there were no strong differences in HRs between regions of birth.

CONCLUSIONS

Compared to natives, the risk of DP was higher in first and second generation immigrants. Higher estimates were seen for immigrants from Europe outside EU25 and from the rest of the world in the first generation. No considerable differences in estimates regarding mental or somatic DP diagnoses were found.

Risk factors for suicide in offspring bereaved by sudden parental death from external causes

BACKGROUND

Parentally bereaved offspring have an increased suicide risk as a group, but the ability to identify specific individuals at risk on the basis of risk and protective factors is limited. The present study aimed to investigate to what degree different risk factors influence suicide risk in offspring bereaved by parental death from external causes.

METHODS

Based on Norwegian registers, individual-level data were retrieved for 375 parentally bereaved suicide cases and 7500 parentally bereaved gender- and age-matched living controls. Data were analysed with conditional logistic regression.

RESULTS

Bereaved offspring with low social support, indicated by offspring's single status and repeated changes in marital status and residence, had a significantly increased suicide risk compared to bereaved offspring with high social support. Moreover, low socioeconomic status, having an immigration background, having lost both parents and loss due to suicide significantly increased suicide risk.

LIMITATIONS

Several variables relevant to bereavement outcome, such as coping mechanisms and the quality of the parent-offspring relationship are impossible to examine by utilizing population registers. Moreover, the availability of data did not enable the measurement of marital stability and residence stability across the entire lifespan for older individuals.

CONCLUSIONS

Healthcare professionals should be aware of the additional risk posed by the identified risk factors and incorporate this knowledge into existing practice and risk assessment in order to identify individuals at risk and effectively target bereaved family and friends for prevention and intervention programs. Ideal follow-up for bereaved families should include a specific focus on mobilizing social support.

Suicide among immigrant population in Norway: a national register-based study

OBJECTIVE

To investigate differences in suicide risk among immigrant population in Norway compared with native Norwegians, with respect to associated country group of origin.

METHODS

Based on the entire national population, a nested case-control design was adopted using Norwegian national longitudinal registers to obtain 23 073 suicide cases having occurred in 1969-2012 and 373 178 controls. Odds ratios (ORs) for suicide were estimated using conditional logistic regression analysis adjusting for socio-economic factors.

RESULTS

Compared with native Norwegians, suicide risk was significantly lower in first- and second-generation immigrants but higher in Norwegian-born with one foreign-born parent and foreign-born individuals with at least one Norwegian-born parent. When stratifying data by country group of origin, first-generation immigrants had lower ORs in most of the strata. Subjects born in Asia and in Central and South America with at least one Norwegian-born parent had a significantly higher risk of suicide. The observed results remained mostly unchanged in the analyses controlled for socio-economic status.

CONCLUSIONS

Suicide risk is lower in first- and second-generation immigrants but higher in subjects born in Norway with one foreign-born parent and those born abroad with at least one Norwegian-born parent, with notable differences by country group of origin.

Mortality by country of birth in the Nordic countries - a systematic review of the literature

Background

Immigration to the Nordic countries has increased in the last decades and foreign-born inhabitants now constitute a considerable part of the region’s population. Several studies suggest poorer self-reported health among foreign-born compared to natives, while results on mortality and life expectancy are inconclusive. To date, few studies have summarized knowledge on mortality differentials by country of birth. This article aims to systematically review previous results on all-cause and cause-specific mortality by country of birth in the Nordic countries.

Methods

The methodology was conducted and documented systematically and transparently using a narrative approach. We identified 43 relevant studies out of 6059 potentially relevant studies in August 2016, 35 of which used Swedish data, 8 Danish and 1 Norwegian.

Results

Our findings from fully-adjusted models on Swedish data support claims of excess mortality risks in specific categories of foreign-born. Most notably, immigrants from other Nordic countries, especially Finland, experience increased risk of mortality from all causes, and specifically by suicide, breast and gynaecological cancers, and circulatory diseases. Increased risks in people from Central and Eastern Europe can also be found. On the contrary, decreased risks for people with Southern European and Middle Eastern origins are found for all-cause, suicide, and breast and gynaecological cancer mortality. The few Danish studies are more difficult to compare, with conflicting results arising in the analysis. Finally, results from the one Norwegian study suggest significantly decreased mortality risks among foreign-born, to be explored in further research.

Conclusions

With new studies being published on mortality differentials between native and foreign-born populations in the Nordic countries, specific risk patterns have begun to arise. Regardless, data from most Nordic countries remains limited, as does the information on specific causes of death. The literature should be expanded in upcoming years to capture associations between country of birth and mortality more clearly.

Electronic supplementary material

The online version of this article (doi:10.1186/s12889-017-4447-9) contains supplementary material, which is available to authorized users.

What do register-based studies tell us about migrant mental health? A scoping review

BACKGROUND

Previous studies investigating the mental health of migrants have shown mixed results. The increased availability of register data has led to a growing number of register-based studies in this research area. This is the first scoping review on the use of registry and record-linkage data to examine the mental health of migrant populations. The aim of this scoping review is to investigate the topics covered and to assess the results yielded from these studies.

METHODS

We used a scoping review methodology to search MedLine, PubMed, PsychINFO, Web of Science, and SCOPUS for all register-based studies on the mental health of migrants. Two reviewers screened all papers, independently, using iteratively applied inclusion and exclusion criteria. Using gradually broadening inclusion and exclusion criteria for maximum "scope," newly published criteria developed to appraise the methodological quality of record-linkage studies were applied to eligible papers and data were extracted in a charting exercise.

RESULTS

A total of 1309 papers were screened and appraised, 51 of which met the eligibility and quality criteria and were included in the review. This review identified four major domains of register-based research within the topic of migrant mental health: rates and risks of psychiatric disorders, rates and risks of suicide mortality, the use of psychotropic drugs, and health service utilisation and mental health-related hospitalisation rates. We found that whilst migrants can be at an increased risk of developing psychotic disorders and suicide mortality, they are less likely to use psychotropic medication and mental health-related services.

CONCLUSIONS

This review systematically charts the register-based studies on migrants' mental health for the first time. It shows the main topics and gaps in knowledge in this research domain, discusses the disadvantages of register-based studies, and suggests new directions for forthcoming studies.

Associations of multicultural status with depressive mood and suicidality among Korean adolescents: the roles of parental country of birth and socioeconomic position

Background

The mental health of the offspring of immigrants is a major public health concern. In this study, we examined associations of multicultural status and parental country of birth with adolescent mental health in South Korea, and assessed the effect of socioeconomic position (SEP) on these associations.

Methods

We used four waves of the Korea Youth Risk Behavior Web-based Survey (KYRBS) between 2011 and 2014, including 294,324 participants (149,219 boys and 145,105 girls aged 13–18 years) as study subjects. KYRBS is a cross-sectional survey conducted annually by the Korea Centers for Disease Control and Prevention. The participants in the KYRBS were drawn as stratified multistage clustered samples from Korean middle schools and high schools. We calculated the age-adjusted 12-month prevalence of depressive mood and suicidal behaviors by parental country of birth, and estimated the effects of SEP indicators on the relationship.

Results

The age-standardized prevalence of suicidality (suicide ideation, plans, and attempts) was significantly different between multicultural and non-multicultural boys. The impact of multicultural status on mental health varied with parental foreign-born status and maternal country of birth. Compared with non-multicultural counterparts, boys with Japan-born mothers showed lower prevalence ratios (PRs) of suicidal plans (PR = 0.34, 95% CI 0.16–0.70). Girls with Japan-born mothers also showed lower PRs of depressive mood (PR = 0.77, 95% CI 0.63–0.95) and suicidal ideation (PR = 0.59, 95% CI 0.41–0.83), while adolescents with Korean-Chinese mothers showed similar PRs. Boys with foreign-born fathers as well as boys with two foreign-born parents were at a greater risk of suicidality than non-multicultural boys. The magnitude of the relationship between multicultural status and mental health outcomes was generally attenuated after adjusting for SEP indicators.

Conclusions

In general, adolescents with Japan-born mothers showed lower PRs of depressive mood and suicidality than non-multicultural adolescents, while those with Korean-Chinese mothers showed similar PRs. Boys who had foreign-born fathers generally showed greater PRs of depressive mood and suicidality than non-multicultural boys. To ensure the effective implementation of policies to reduce mental health problems among multicultural adolescents in South Korea, detailed information should be considered regarding the cultural and socioeconomic backgrounds of families, such as parental country of birth and SEP.

Electronic supplementary material

The online version of this article (doi:10.1186/s12889-017-4044-y) contains supplementary material, which is available to authorized users.

Labour market marginalisation subsequent to suicide attempt in young migrants and native Swedes

PURPOSE

This study aimed to compare young individuals who differed in terms of birth region and history of suicide attempt regarding socio-demographic and healthcare factors, and with regard to their risks of subsequent unemployment, sickness absence and disability pension.

METHODS

Prospective cohort study based on register linkage of 2,801,558 Swedish residents, aged 16-40 years in 2004, without disability pension and with known birth country, followed up 2005-2011. Suicide attempters treated in inpatient care during 2002-2004 (N = 9149) were compared to the general population of the same age without attempt 1987-2011 (N = 2,792,409). Hazard ratios (HR) and 95% confidence intervals (CIs) for long-term unemployment (>180 days), sickness absence (>90 days), and disability pension were calculated with Cox regression, adjusted for several risk markers.

RESULTS

Compared to Swedish natives with suicide attempt, migrants of non-Western origin with attempt received less specialised mental healthcare. Distinct differences between native Swedes and migrants were present for the three labour market outcomes, but differences between migrant subgroups were inconsistent. As compared to native Swedes without attempts, non-European migrants with suicide attempt had adjusted HRs and CIs for subsequent unemployment 2.8 (2.5-3.1), sickness absence 2.0 (1.7-2.3) and disability pension 2.2 (1.8-2.6). Respective estimates for natives with suicide attempt were 2.0 (1.9-2.1); 2.7 (2.6-2.9) and 3.4 (3.2-3.6), respectively.

CONCLUSIONS

Migrant suicide attempters receive less specialised mental health care before their attempt than native Swedes, and their marginalzation patterns are different. Healthcare and policy makers need to take the differential risk profile for migrant and native populations into account.

Attempted suicide and violent criminality among Danish second-generation immigrants according to parental place of origin

BACKGROUND

Immigrant populations in Western European countries have grown in their size and diversity, but little is known about risks of self-directed and externalised violence among second-generation immigrants.

AIMS

To compare risks for attempted suicides and violent offending among second-generation immigrants to Denmark according to parental region of origin versus the native Danish population.

METHODS

Data from interlinked national Danish registers were used (N = 1,973,614). Parental origin outside Denmark was categorised thus: Asia, Africa, Middle East, Greenland, other Scandinavian countries, elsewhere in Europe and all other regions. We estimated gender-specific cumulative incidence and incidence rate ratios (IRRs) versus native Danes.

RESULTS

In virtually all subgroups of second-generation immigrants, risk was elevated for the two adverse outcomes in both genders. Females generally had greater elevations in attempted suicide risk, and males had greater elevations in violent offending risk. For attempted suicide, especially large IRRs were observed for males and females whose parents emigrated from Greenland; for violent offending, risks were particularly raised for males and females of Middle Eastern, Greenlandic and African origin. Adjustment for socioeconomic status partially explained these associations.

CONCLUSION

Western European nations should develop preventive programmes tailored towards specific second-generation immigrant populations, with integrated approaches jointly tackling suicidality and violence.

Comparison of Families with and without a Suicide Prevention Plan Following a Suicidal Attempt by a Family Member

The frequency and extent of the existence of a familial suicide prevention plan may differ across cultures. The aim of this work was, therefore, to determine how common it was for families to develop a suicide prevention plan and to compare the main measures used by families with and without such a plan, after an attempt to commit suicide was made by a member of a family living in a rural area of Korea. On the basis of the presence or absence of a familial suicide prevention plan, we compared 50 recruited families that were divided into 2 groups, with Group A (31 families) employing a familial suicide prevention plan after a suicide attempt by a family member, and Group B (19 families) not doing so. The strategy that was employed most frequently to prevent a reoccurrence among both populations was promoting communication among family members, followed by seeking psychological counseling and/or psychiatric treatment. Contrary to our expectation, the economic burden from medical treatment after a suicide attempt did not influence the establishment of a familial suicide prevention plan. It is a pressing social issue that 38% (19 of 50) of families in this study did not employ a familial suicide prevention plan, even after a family member had attempted suicide. Regional suicide prevention centers and/or health authorities should pay particular attention to these patients and their families.

National Cohort Study of Suicidality and Violent Criminality among Danish Immigrants

BACKGROUND

Immigrant populations in western societies have grown in their size and diversity yet evidence is incomplete for their risks of suicidality and criminal violence. We examined these correlated harmful behaviours in a national cohort.

AIMS

(i) Compare absolute risk between first and second generation immigrants, foreign-born adoptees and native Danes by plotting cumulative incidence curves to onset of early middle age; (ii) estimate sex-specific relative risks for these immigrant type subgroups vs. native Danes; (iii) examine effect modification by higher vs. lower socio-economic status.

METHODS

In a cohort of over two million persons, attempted suicides and violent crimes were investigated using data from multiple interlinked registers. We plotted sex-specific cumulative incidence curves and estimated incidence rate ratios.

RESULTS

In the whole study cohort, 1414 people died by suicide, 46,943 attempted suicide, and 51,344 were convicted of committing a violent crime. Among all immigrant subgroups combined, compared with native Danes, relative risk of attempted suicide was greater in female immigrants (incidence rate ratio, 1.59; 95% confidence interval: CI 1.54-1.64) than in male immigrants (1.26; CI 1.20-1.32), and vice versa for relative risk of violent offending in male immigrants (2.36; CI 2.31-2.42) than in female immigrants (1.74; CI 1.62-1.87). Risk for both adverse outcomes was significantly elevated in virtually every gender-specific immigrant type subgroup examined. Violent crime risk was markedly raised in first generation immigrant males and in the Danish born male children of two immigrant parents. However, male immigrants of lower social status had lower risk of attempted suicide than their native Danish peers.

CONCLUSION

Young immigrants of both first and second generation status face serious challenges and vulnerabilities that western societies need to urgently address. Relative risk patterns for these adverse outcomes vary greatly between the genders and also by socioeconomic status. This high degree of heterogeneity points to the existence of modifiable factors that are amenable to positive change and a potential for effective intervention.