Parental separation in childhood, social capital, and suicide thoughts and suicide attempts: A population-based study

Suicidal ideation during adolescence: The roles of aggregate genetic liability for suicide attempts and negative life events in the past year

BACKGROUND

Suicidal thoughts and behaviors (STB) constitute a central public health concern in adolescence. Previous studies emphasized the difficulty to cope with negative life events during adolescence as a risk factor for STB. Familial and genetic liability has also been documented to explain STB risk. Nevertheless, less is known about aggregate genetic liability and its possible interaction with negative life events. Moreover, information is needed to understand how these factors differently affect STB in boys and girls.

METHODS

We evaluated suicidal ideation at 17 years old and examined the role of aggregate genetic liability, negative life events, and their interaction in a sample of 2,571 adolescents. Aggregate genetic liability was measured using a polygenic score (PGS) for suicide attempts. Negative life events were assessed in the past year and included parental divorce and hospitalizations, death of friends and relatives, bullying, failure-related events, and involvement with drugs. We conducted univariable and multivariable general linear models stratified by sex and evaluated the interactions between PGS and negative life events in subsequent models.

RESULTS

Analyses showed that suicidal ideation in boys is associated with failure to achieve something important (estimate = 0.198), bullying (estimate = 0.285), drug use (estimate = 0.325), and parental death (estimate = 0.923). In girls, both aggregate genetic liability (estimate = 0.041) and negative life events (failure at school [estimate = 0.120], failure to achieve something important [estimate = 0.279], drug use [estimate = 0.395], and bullying [estimate = 0.472]) were associated with suicidal ideation. Interaction analyses suggested that PGS interacted with drug use and failures at school, though this would need additional support.

CONCLUSIONS

These findings represent significant contributions to the fundamental understanding of STB in adolescence, suggesting to monitor the impact of negative life events during adolescence to better prevent suicide risk. Genetic liability is also of importance in girls and might influence the way they respond to environmental threats.

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

OBJECTIVE

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

METHOD

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

RESULTS

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

CONCLUSIONS

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

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

Background

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

Methods

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

Results

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

Conclusions

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

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

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

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

BACKGROUND

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

METHODS

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

RESULTS

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

CONCLUSIONS

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

Association Between Parental Marital Status and Types of Suicidal Behavior Among Korean Adolescents: A Cross-sectional Study

Objectives

Adolescent suicide is a global problem. This study aimed to identify associations between parental marital status and suicidal behavior.

Methods

This study analyzed 118 715 middle and high school students from the 13th and 14th Korea Youth Risk Behavior Web-based Survey. The odds ratios (ORs) of suicidal ideation, planning, and attempts were calculated based on parental marital status, living situation, and socioeconomic factors. The data were analyzed using multiple logistic regression.

Results

When compared to those living with 2 married biological parents, the ORs of suicidal ideation among adolescents living with either remarried or no parents were 1.34 (95% confidence interval [CI], 1.17 to 1.53) and 1.36 (95% CI, 1.11 to 1.66), respectively. For suicidal planning, the OR of those living with 1 remarried biological parent was 1.24 (95% CI, 1.01 to 1.52), and that of those living without parents was 1.28 (95% CI, 0.95 to 1.73), when compared to adolescents living with 2 married biological parents. For suicide attempts, when compared to adolescents with 2 married biological parents, the OR of those living with 1 remarried biological parent was 1.48 (95% CI, 1.17 to 1.87) and that of those living without parents was 2.02 (95% CI, 1.44 to 2.83). For adolescents living with 1 remarried biological parent, suicidal behavior was strongly associated with having no siblings and were weakly associated with not living with grandparents.

Conclusions

Suicidal behavior among adolescents was associated with the remarriage and loss of parents. Therefore, special attention and interventions are needed for adolescents in those situations.

Perceived parental support in childhood and adolescence as a tool for mental health screening in students: A longitudinal study in the i-Share cohort

BACKGROUND

Negative events in childhood are associated with increased risk of mental health problems, and evaluation could help identify students at high risk of mental health disorder. However, childhood adversity measures are difficult to implement in routine care. Perceived parental support in childhood and adolescence may be more easily assessed, as it is a rather neutral and non-intrusive question.

METHODS

We retrieved students' health data collected from the French i-Share cohort, in a longitudinal population-based study including 4463 students of 18-24 years of age. Students in this cohort completed a self-reported questionnaire about major psychiatric problems at one-year follow-up.

RESULTS

Among 4463 participants, 26% reported a major mental health problem-including suicidal behavior (17%), major depression (7%), and severe generalized anxiety disorder (15%). Adjusted logistic regression revealed that a lower level of perceived parental support was significantly associated with higher risk of any mental health problem. Compared to students who reported extremely strong perceived parental support, students who perceived no support had a nearly 4-fold higher risk of mental health problems (aOR 3.80, CI 2.81-5.13). Lower levels of perceived parental support were dose-dependently associated with higher incidences of suicidal behavior, major depression, and severe generalized anxiety disorder.

LIMITATIONS

Study limitations included a moderate follow-up response rate, and retrospective self-report questionnaires.

CONCLUSION

Perceived parental support was strongly associated with the incidence of mental health problems among college students. If validated, these results suggest that health professionals should consider using this simple marker to improve mental health risk assessment and screening.

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

Background

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

Methods

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

Results

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

Conclusion

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

Sexual orientation, suicide ideation and suicide attempt: A population-based study

The aim is to investigate associations between sexual orientation and experience of suicide thoughts and suicide attempts. The 2012 public health survey in Scania, southern Sweden, is a cross-sectional population-based study including 28,029 participants aged 18-80 with 51.7% participation. The associations between sexual orientation and experience of suicide thoughts and attempts were investigated in multiple logistic regressions. A 8.2% proportion of men and 11.3% of women reported suicide thoughts more than a year ago, and 4.0% of men 4.1% of women had experienced such thoughts during the past year. A 2.6% proportion of men and 4.6% of women reported suicide attempt more than a year ago, and 0.6% of men and 0.7% of women during the past year. In the age- and multiple adjusted models, bisexual and homosexual men and bisexual women had significantly higher odds ratios of suicide thoughts than heterosexual men and women. Bisexual and homosexual men and bisexual women had significantly higher odds ratios of suicide attempt than heterosexual men and women. After multiple adjustments these patterns largely remained. The results indicate that bisexual men and women and homosexual men have an increased risk of experience of suicide thoughts and suicide attempt.

The association of religiosity with suicidal ideation and suicide attempts in the United Kingdom

OBJECTIVE

The goal was to analyze the association of religiosity with suicidal ideation and suicide attempts in a UK nationally representative sample.

METHODS

This study used cross-sectional data from 7403 people who participated in the 2007 Adult Psychiatric Morbidity Survey (APMS). Religion was assessed with the question 'Do you have a specific religion?' with 'yes' and 'no' answer options. Lifetime and past 12-month suicidal ideation and suicide attempts were assessed. The association between religiosity and suicidality was studied in multivariable logistic regression models adjusted for sociodemographic, behavioural, and psychopathological factors.

RESULTS

Compared to those without a religion, the prevalence of past 12-month suicidal ideation (3.2% vs. 5.4%), past 12-month suicide attempts (0.4% vs. 0.9%), lifetime suicidal ideation (11.2% vs. 16.4%), and lifetime suicide attempts (3.6% vs. 6.0%) was lower among those with a religion. In the fully adjusted model, having a religion was significantly associated with lower odds for all types of suicidality except past 12-month suicide attempts: suicidal ideation (past 12-month: OR = 0.71, 95% CI = 0.51-0.99; lifetime: OR = 0.83, 95% CI = 0.69-0.99) and suicide attempts (past 12-month: OR = 0.71, 95% CI = 0.35-1.45; lifetime: OR = 0.69, 95% CI = 0.53-0.90).

CONCLUSION

There is a negative association between religiosity and suicidality in the UK. Future studies should focus on the underlying mechanisms.

Perceived parental support in childhood and adolescence and suicidal ideation in young adults: a cross-sectional analysis of the i-Share study

BACKGROUND

Suicidal ideation and suicidal risk assessment are major concerns for health professionals. The perception of a low level of parental support is a risk factor for suicidal tendencies among adolescents, but little is known about its long-term impact on the vulnerability to suicidal behavior in young adults. We investigated whether the perceived level of parental support during childhood and adolescence was associated with current suicidal ideation in young adults.

METHODS

We retrieved data collected in the i-Share study from February 1st, 2013 through January 30, 2017. This cross-sectional study included 10,015 French students, aged 18-24 years that completed an on-line self-reported questionnaire about suicidal ideation in the last 12 months and their perceived parental support in childhood and adolescence. We performed multinomial logistic regressions and sensitivity analyses to assess associations between the degree of perceived parental support and the frequency suicidal thoughts, after adjusting for the main known risk factors of suicidal ideation. We employed multiple imputations to account for missing data.

RESULTS

The study sample included 7539 female (75.7%) and 2436 male (24.3%) students (mean [SD] age 20.0 [1.8] years). About one in five students reported occasional suicidal thoughts (n = 1775, 17.7%) and 368 students (3.7%) reported frequent suicidal thoughts. The adjusted multinomial logistic regression revealed a significant negative association between perceived parental support and suicidal thoughts. A lack of perceived parental support in childhood and adolescence was associated with > 4-fold elevated risk of occasional (adjusted OR, 4.55; 95% CI: 2.97-6.99) and nearly 9-fold elevated risk of frequent (adjusted OR, 8.58; 95% CI: 4.62-15.96) suicidal thoughts, compared to individuals that perceived extremely strong parental support. This association was strongest among students with no personal history of depression or suicide attempts.

CONCLUSIONS

Students that perceived low levels of past parental support had a higher risk of suicidal ideation. Past perceived parental support appeared to be a potent marker of suicidal risk in young adults. This marker should be routinely collected in studies on suicidal risk in young adults, and it could be considered an additional screening tool.

Economic stress in childhood and suicide thoughts and suicide attempts: a population-based study among adults

OBJECTIVES

To investigate associations between economic stress in childhood and suicide thoughts and attempts.

STUDY DESIGN

The 2012 public health survey in Scania, Sweden, is a cross-sectional postal questionnaire study including 28,029 participants, aged 18-80 years.

METHODS

Associations were analyzed in logistic regressions.

RESULTS

A 12.1% prevalence of men and 15.5% of women had ever experienced suicide thoughts, while 3.2% of men and 5.3% of women had experienced suicide attempt. Roughly 24% had experienced less severe and 8% severe economic problems in childhood. Significant associations between economic stress in childhood and suicide thoughts and attempts remained throughout the age-adjusted and multiple adjusted analyses.

CONCLUSIONS

Economic stress in childhood is associated with self-reported suicide thoughts and suicide attempts in an adult general population.

Self-harm risk between adolescence and midlife in people who experienced separation from one or both parents during childhood

BACKGROUND

Experience of child-parent separation predicts adverse outcomes in later life. We conducted a detailed epidemiological examination of this complex relationship by modelling an array of separation scenarios and trajectories and subsequent risk of self-harm.

METHODS

This cohort study examined persons born in Denmark during 1971-1997. We measured child-parent separations each year from birth to 15th birthday via complete residential address records in the Civil Registration System. Self-harm episodes between 15th birthday and early middle age were ascertained through linkage to psychiatric and general hospital registers. Incidence rate ratios (IRRs) from Poisson regression models were estimated against a reference category of individuals not separated from their parents.

RESULTS

All exposure models examined indicated an association with raised self-harm risk. For example, large elevations in risk were observed in relation to separation from both parents at 15th birthday (IRR 5.50, 95% CI 5.25-5.77), experiencing five or more changes in child-parent separation status (IRR 5.24, CI 4.88-5.63), and having a shorter duration of familial cohesion during upbringing. There was no significant evidence for varying strength of association according to child's gender.

LIMITATIONS

Measuring child-parent separation according to differential residential addresses took no account of the reason for or circumstances of these separations.

CONCLUSIONS

These novel findings suggest that self-harm prevention initiatives should be tailored toward exposed persons who remain psychologically distressed into adulthood. These high-risk subgroups include individuals with little experience of familial cohesion during their upbringing, those with the most complicated trajectories who lived through multiple child-parent separation transitions, and those separated from both parents during early adolescence.

Global trends in suicide epidemiology

PURPOSE OF REVIEW

Suicide is a major cause of mortality accounting for nearly 1 million deaths globally per year. Suicide occurs throughout the lifespan; therefore, large epidemiological samples are needed to identify patterns in suicide death. This review examines emerging evidence relating to risk and protective factors as well as preventive measures for suicide.

RECENT FINDINGS

The global financial crisis, natural disasters, air pollution and second-hand smoke have all been associated with increased suicide rates. At an individual level, past self-harm, parental loss or separation and younger age relative to classmates all confer risk. There is mixed evidence for religious affiliation and lithium levels in drinking water as protective factors. Means restriction strategies including barriers at suicide hotspots, firearms restrictions and limiting access to both pesticides and charcoal have all prevented suicide. Other interventions with recent evidence include improvements in mental health systems, selective serotonin reuptake inhibitor (SSRI) and lithium treatment in youth and mental health awareness in schools.

SUMMARY

The evidence for risk/protective factors for suicide continues to grow and, more importantly, numerous prevention efforts continue to demonstrate positive outcomes. Public policy experts should attend to the environmental and social determinants of health when devising suicide prevention programs, and the evidence-based prevention strategies identified here should be implemented more broadly.

Parental separation in childhood and self-reported psychological health: A population-based study

The aim of the present study is to investigate associations between parental separation/divorce during childhood, and self-reported psychological health, adjusting for social capital, social support, civil status and economic stress in childhood. A cross-sectional public health survey was conducted in the autumn of 2012 in Scania, southern Sweden, with a postal questionnaire with 28,029 participants aged 18-80. Associations between parental separation/divorce during childhood and self-reported psychological health (GHQ12) were investigated using logistic regressions. A 16.1% proportion of all men 22.4% of all women reported poor psychological health. Among men, 20.4% had experienced parental separation during childhood until age 18 years, the corresponding prevalence among women was 22.3%. Parental separation/divorce in childhood was significantly associated with poor self-rated psychological health among men who had experienced parental separation/divorce at ages 0-4, and among women with this experience at ages 0-4, 10-14 and 15-18. These significant associations remained throughout the multiple analyses. The results support the notion that the experience of parental separation/divorce in childhood may influence psychological health in adulthood, particularly if it is experienced in the age interval 0-4 years.

Association between FKBP5 and CRHR1 genes with suicidal behavior: A systematic review

Suicide is one of the leading causes of death around the world with approximately one million suicides per year. An increasing number of neurobiological studies implicate HPA system dysfunction in suicide behavior, stimulating genetic research to focus on genes related to this system. This systematic review was focused on searching a correlation between FKBP5 and CRHR1 genes with suicidal behavior. Therefore, an electronic search strategy, using PubMed, EBSCO and Cochrane Library databases, was conducted from the inception of the studies into the databases to July 2016. The inclusion criteria were: use of at least one analysis investigating the relation between either the genetic variants in FKBP5 and/or CRHR1 genes with suicidal behavior. 2) use of a case-control design; 3) investigation about suicidal behavior in the form of suicide completion or history of at least one suicide attempt, as defined by each individual study; 4) inclusion of samples comprising control subjects; and 6) inclusion of reports written only in English language. The PRISMA guidelines were followed and the search strategy ensured that all possible studies were identified to compile the review. Using the keyword combinations, the search strategy provided 3334 articles, of which only 15 case-control studies were included in this systematic review. The included studies comprised 2526 subjects with suicidal behavior. A quantitative synthesis of results from the included studies was not undertaken due to marked methodological heterogeneity. This review showed a significant genetic association in most studies in FKBP5 and CRHR1 genes with a high rate of attempted suicide, pointing out that the expression of these genes and its polymorphisms could be a key predictor of suicide risk. In conclusion, this systematic review supports an association between suicidal behavior and genetic variants in FKBP5 and CRHR1 genes.