Gender and age differences in suicide mortality in the context of violent death: findings from a multi-state population-based surveillance system

Suicide Cognitions Scale: Psychometric Support in a Community Sample Using Bifactor Modeling and Altered Item Content

The Suicide Cognitions Scale (SCS) measures suicide-related beliefs proposed by the Fluid Vulnerability Theory. A recent investigation of a revised version of the SCS (i.e., SCS-R) which omits items explicitly referencing suicide has indicated that the measure is highly influenced by a general factor and may be useful for distinguishing severity levels of suicidal thoughts and behaviors; however, limited concurrent validity studies with a range of suicide-related experiences have been conducted. As such, this study replicated and extended previous psychometric research on the SCS-R in an online survey study with a community sample of N = 10,625 U.S. adults. Results confirmed the unidimensional structure of the SCS-R. Logistic regression analyses indicated that the total score of the SCS-R is useful in distinguishing varying levels of suicidal thoughts and behaviors such as past-month planning for suicide without attempt versus past-month suicide attempt. Implications and limitations are discussed.

Psychological Issues among Spanish Adolescents and Young People when Coming out of the Closet to Their Families

Some social settings may make the process of 'coming out' more difficult for gay males and lesbian females, and the decision to do so may be even more problematic for adolescents and young people. As a result, some may choose to hide their sexual orientation, leading to emotional suffering. This study aims to analyse the differences in perceived stress, life satisfaction, happiness, and psychological distress experienced by both coming out and closeted young people and teens. The sample included a total of 228 Spanish young people aged 16-23 years old (M = 19.69, S.D. = 1.81) who identified themselves as gay or lesbian (73.2% women). The results of this study show that people in the closet show greater psychological distress (anxiety and depressive symptomatology) and perceived stress. Although perceived stress is positively related to psychological distress in both groups, the correlation is higher in the closeted group. This suggests that perceived stress has more serious consequences on the mental health of the closeted group than of the 'coming out' group. To sum up, the results show the importance of family support for gay and lesbian young people.

Cluster analysis of risky behaviors among the youth in Western Iran: Determining correlates and comparing clusters based on severity of disability and attitude toward mental health help-seeking

BACKGROUND AND AIMS

The objectives of the study were (i) cluster analysis of risky behaviors; (ii) determining correlates; and (iii) comparing clusters with regard to the attitude toward mental health help seeking.

METHODS

The current cross-sectional study is a part of the first phase of the Persian Youth Cohort. From October 2014 to January 2017, 2990 individuals from Ravansar City in western Iran completed structured interviews and national and international standard questionnaires. The obtained data were analyzed using two-stage cluster analysis, multinomial logistic regression analysis, and Chi-square test.

RESULTS

This model provided three distinct clusters: (i) low-risk group with mild distress, (ii) high-risk group with high distress, and (iii) violent group with medium distress. Some sociodemographic and lifetime psychiatric disorders were the correlates of unhealthy clusters (P < 0.05). Compared to the reference cluster, a higher number of members in unhealthy clusters were suffering from medium to severe disability. Nevertheless, the participants in these clusters were less inclined to mental health help seeking.

CONCLUSIONS

More than half of the youth were suffering from suicidal and violent behaviors. Since high-risk participants are less inclined to mental health help seeking, the health policymakers can successfully utilize the results in planning general health programs.

History of Physical Teen Dating Violence and Its Association With Suicidal Behaviors Among Adolescent High School Students: Results From the 2015 Youth Risk Behavior Survey

Although studies have investigated and found physical teen dating violence (TDV) has a significant negative impact on mental health outcomes, few studies are yet to investigate the effect of physical TDV on suicidal behaviors among adolescents. The objectives of this study are to examine the prevalence of physical TDV, suicidal ideation, suicide plan, and suicide attempt among adolescents aged 14 to 18 years and the association between physical TDV and these suicidal behaviors. Data for this study were obtained from the 2015 Youth Risk Behavior Survey. A sample of 9,693 adolescents aged 14 to 18 years (50.4% males) was analyzed using logistic regression with suicidal ideation, suicide plan, and suicide attempt as outcome variables and physical TDV as the main explanatory variable. About 17% of the adolescent students experienced suicidal ideation, 13.7% made a suicide plan, and 7.6% attempted suicide during the past 12 months. Among those who were dating, 9.9% experienced physical TDV. In the multivariate logistic regression, adolescent students who experienced physical TDV were 1.92 times more likely to have experienced suicidal ideation, 1.67 times more likely to have made a suicide plan, and 2.42 times more likely to have attempted suicide during the past 12 months when compared with their counterparts who were dating but experienced no physical TDV. Other significant predictors of suicidal behaviors include being a sexual minority, experiencing forced sex, bullying, feeling sad or hopeless, and binge drinking. Having sufficient sleep lowered the odds of suicidal ideation and suicide plan. The topic of physical TDV and its association with suicidal behaviors among adolescents is such an important issue for researchers, policymakers, and practitioners in the United States and around the world. Prevention and intervention efforts should be culturally tailored to reflect the unique experiences with physical TDV and suicide among minority populations such as sexual minority adolescents.

Adversity Over the Life Course: A Comparison Between Women and Men Who Died by Suicide

Purpose: This study sets out to compare the presence of life events across different domains throughout the life course which may contribute to the burden of adversity experienced differently among men and women who died by suicide. Method: In a sample of 303 individuals (213 men and 90 women), data was derived from extensive clinical interviews conducted with informants. Models allowed the identification of patterns of life trajectories. Results: Overall, the burden of adversity was similar across the life course except for the 5-9, 25-29, and 30-34 age ranges, where a significant difference appeared between genders [t-test = 2.13 (p < 0.05), 2.16 (p < 0.05) and 3.08 (p < 0.005), respectively] that seems to disadvantage women. The early adversities of violence and neglect, between 0 and 19 years old, are important for both groups. During the life course, women were more exposed to interpersonal adverse events such as being victims of negligence and violence, relational difficulties or abuse from their spouse, as well as tension with their own children. Men encountered more academic difficulties, legal entanglements and financial difficulties, and were more than three times more likely to develop an alcohol/drug abuse problem than women. Conclusions: The data suggests some gender differences in exposure to longstanding and severe life problems contributing to suicide vulnerability. For women, the continuing burden emerges from chronic interpersonal adversities, whereas, for men, the adverse events are to a larger degree socially exposed, compounded with alcohol misuse. The adversities, especially those of a public or social nature, may be witnessed by others, which should favor the detection of vulnerability over the life course, and psychosocial or mental health services should be offered and provided earlier during the life course. Yet more men die by suicide than women. Resiliency and protective factors may benefit women to a greater degree. Future research should tackle the challenge of investigating these important elements. Meanwhile, from a public health perspective, access to psychosocial and mental health services and social acceptability of seeking services should be part of an ongoing effort in all institutional structures as a way of decreasing downstream mental health problems and vulnerability to suicide.

Variable Circumstances of Suicide Among Racial/Ethnic Groups by Sex and Age: A National Violent-Death Reporting System Analysis

Suicide rates vary by race/ethnicity, but little is known about how the circumstances that contribute to suicide differ across racial/ethnic groups. This study investigated suicide circumstances among non-Hispanic Whites, non-Hispanic Blacks, non-Hispanic Asian/Pacific Islanders, non-Hispanic Native American/Alaskan Natives, and Hispanics by sex and age. Using de-identified National Violent Death Reporting System (NVDRS) Restricted Access Database files from 2006-2015, we examined proximal circumstances of suicide among decedents aged 10 years and older. Hierarchical logistic regression analysis revealed racial/ethnic differentials in non-alcohol substance abuse problem, intimate partner problem, and physical health problem across sex and age, controlling for potential confounders. Study findings highlight priority areas for suicide interventions.

Defense Mechanisms and Psychological Characteristics According to Suicide Attempts in Patients with Borderline Personality Disorder

OBJECTIVE

There have been many biological studies on suicide behaviors of borderline personality disorder (BPD), however few studies have sought to psychoanalytic characteristics including defense mechanisms. Therefore, we investigated psychological, symptomatic, and personality characteristics including defense mechanisms in suicide attempters and non-suicide attempters among patients with BPD.

METHODS

We enrolled 125 patients with BPD. Forty-two patients with a history of one or more suicide attempts formed the suicide attempters group and 83 patients with no such history formed the non-suicide attempters group. We collated the differences in clinical and psychological characteristics between the two groups by using the Symptom Checklist-90-Revised (SCL-90-R), the Minnesota Multiphasic Personality Inventory-2 (MMPI-2), the Personality Disorder Questionnaire-4+ (PDQ-4+), and the Defense Style Questionnaire (DSQ).

RESULTS

The suicide attempters group scored higher on the hostility subscale of SCL-90-R. The suicide attempters group also scored higher on the Infrequency, Back Infrequency, Lie, Masculinity-femininity, Paranoia, Psychasthenia, and Schizophrenia scales of the MMPI-2. The incidence of paranoid and antisocial personality disorders, as assessed by the PDQ-4+, was significantly different in both groups. Maladaptive, self-sacrificing defense style, splitting and affiliation on the DSQ were also higher for the suicide attempters group. In the results of the logistic regression analysis, gender, the F(B) and L scales on the MMPI-2, and 'splitting of other's image' defense mechanism on the DSQ were the factors that significantly influenced to suicide attempts.

CONCLUSION

These findings suggest that impulsive psychiatric features and maladaptive defense style may be related to suicidal risk in patients with BPD. Therefore, our findings may help clinicians in estimating the risk of suicide in patients with BPD.

Examining the intersection of race/ethnicity and sexual orientation on suicidal ideation and suicide attempt among adolescents: Findings from the 2017 Youth Risk Behavior Survey

Although some studies have examined factors associated with suicidal behaviors, few studies have examined the intersection of sexual orientation and race/ethnicity on suicidal behaviors among adolescents. The objective of this study is to examine the intersection of sexual orientation and race/ethnicity on suicidal ideation and suicide attempt. We hypothesized that controlling for the effects of known risk factors for suicidal behaviors, there will be an interaction effect between sexual orientation and race/ethnicity on suicidal behaviors. Data for this study came from the 2017 Youth Risk Behavior Surveillance System. A sample of 13,697 adolescents aged 14-18 years (51.8% female) was analyzed using binary logistic regression. Of the 13,697 adolescents, 17.7% reported suicidal ideation and 7.7% made at least one suicide attempt during the past 12 months. In the multivariate logistic regression models, non-White sexual minority adolescents are less likely to report suicidal ideation. However, Hispanic lesbian/gay adolescents had 1.71 times higher odds of making a suicide attempt. Odds of suicide attempt are 1.2 times higher for Black or African American bisexual adolescents and American Indian/Native Hawaiian/Pacific Islander bisexual adolescents had 2.44 times higher odds of making a suicide attempt. Other significant predictors of suicidal behaviors include a history of sexual assault, a victim of bullying, depression, cigarette smoking, misuse of prescription pain medication, and illicit drug use. The findings of the present study extend past research on the intersection of sexual orientation and race/ethnicity on mental health problems among adolescents including suicidal behaviors.

Annual Research Review: A meta-analytic review of worldwide suicide rates in adolescents

Suicide is a leading cause of death among youth worldwide. The purpose of the current review was to examine recent cross-national trends in suicide mortality rates among 10- to 19-year-olds. This study extracted suicide mortality data from the World Health Organization's (WHO) Mortality Database for the most recent year (since 2010) from any country with available high-quality data (as defined by the WHO's guidelines). Data on access to lethal means (firearms, railways) and measures of economic quality (World Bank Income Group) and inequality (Gini coefficients) were obtained from publicly available data sources. Cross-national suicide mortality rates in youth were heterogeneous. The pooled estimate across all ages, sexes, and countries was 3.77/100,000 people. The highest suicide rates were found in Estonia, New Zealand, and Uzbekistan. Suicide rates were higher among older compared with younger adolescents and higher among males than females. The most common suicide methods were hanging/suffocation and jumping/lying in front of a moving object or jumping from a height. Firearm and railway access were related to suicide deaths by firearms and jumping/lying, respectively. Economic quality and inequality were not related to overall suicide mortality rates. However, economic inequality was correlated with a higher ratio of male:female suicides. This study provides a recent update of cross-national suicide trends in adolescents. Findings replicate prior patterns related to age, sex, geographic region, and common suicide methods. New to this review are findings relating suicide method accessibility to suicide mortality rates and the significant association between income inequality and the ratio of male:female suicide. Future research directions include expanding the worldwide coverage to more low- and middle-income countries, examining demographic groupings beyond binary sex and to race/ethnicity within countries, and clarifying factors that account for cross-national differences in suicide trends.

Epidemiology of suicide in an Iowa cohort

OBJECTIVES

Suicide is an ongoing public health problem in the United States. The purpose of this epidemiologic investigation was to characterize and identify populations at risk of suicide, which in turn may lead to targeted intervention and improvements in suicide prevention.

STUDY DESIGN

This is a descriptive analysis of 657 suicide decedents autopsied by the University of Iowa Hospitals and Clinics between 7/1/2003 and 6/30/2018 (180 months, 15 years).

METHODS

Data were obtained via autopsy report abstraction. Chi-squared tests were used for categorical variables and Wilcoxon rank-sum tests were used for continuous variables. Statistical analyses were conducted using SAS 9.3.

RESULTS

Decedents were primarily white (88.2%) and male (75.7%). Average age was 43 years. Suicides were more likely to occur at a residence (69.3%), earlier in the week, and in the late night to early morning hours. Suicides were most likely to occur in spring and least likely to occur in winter. The most common method was a firearm (44.6%), most often a handgun (61.3% of firearm suicides). Less than one-half (42.8%) of decedents communicated intent to end their life. Approximately one-quarter (22.1%) of suicides were without a known identified life stressor or a known inciting event, a phenomenon that was markedly more common among men.

CONCLUSIONS

More than one-half of decedents left no communication of intent to commit suicide, and one-quarter-more commonly men-had no known life stressor or other specifically identified motivating factor. While women were more likely to have a known mental health condition, prior contact with mental health care, or prior suicidal behavior, we found that, statistically speaking, the typical profile of a completed suicide is a white male who used a firearm in his place of residence. Future studies should seek to further elucidate factors leading to suicide in this at-risk population.

Genome-wide association studies identify polygenic effects for completed suicide in the Japanese population

Suicide is a significant public health problem worldwide, and several Asian countries including Japan have relatively high suicide rates on a world scale. Twin, family, and adoption studies have suggested high heritability for suicide, but genetics lags behind due to difficulty in obtaining samples from individuals who died by suicide, especially in non-European populations. In this study, we carried out genome-wide association studies combining two independent datasets totaling 746 suicides and 14,049 non-suicide controls in the Japanese population. Although we identified no genome-wide significant single-nucleotide polymorphisms (SNPs), we demonstrated significant SNP-based heritability (35-48%; P < 0.001) for completed suicide by genomic restricted maximum-likelihood analysis and a shared genetic risk between two datasets (P_best = 2.7 × 10^-13) by polygenic risk score analysis. This study is the first genome-wide association study for suicidal behavior in an East Asian population, and our results provided the evidence of polygenic architecture underlying completed suicide.

Body mass index weight categories in adults who died by suicide: An observational study

BACKGROUND

There is conflicting evidence about the relationship between body mass index (BMI) and suicide death. This study aimed to characterize and compare suicide deaths by weight using BMI weight categories.

METHODS

We examined suicide deaths in adults in the city of Toronto (2009-2015); grouped them by BMI categories (underweight, normal weight, overweight, and obese) and compared groups based on demographics, clinical variables and method of suicide death.

RESULTS

Suicide decedents' (n = 1429) mean age was 48.6 years (SD = 17.4) and mean BMI was 25.5 (SD = 5.4). Underweight decedents were more likely to be female and to have cancer while obese decedents were more likely to have diabetes. Underweight decedents were more likely to have an identified history of any medical condition. Obese and overweight decedents were significantly more likely to have an identified history of any psychiatric condition. Non-violent methods (e.g., self-poisoning) were used at a higher proportion by people with obesity and by people who were underweight.

LIMITATIONS

Psychological autopsies were not available and it was not possible to assess for change in or stability of BMI over time.

CONCLUSIONS

These findings add to our understanding of the relationship between suicide and weight. A higher prevalence of females as well as those with a history of cancer and any medical condition in underweight decedents was noteworthy and of potential clinical significance.

Investigating the association between age at first alcohol use and suicidal ideation among high school students: Evidence from the youth risk behavior surveillance system

BACKGROUND

Although various studies have investigated and found a significant link between age at first alcohol use and health risk behaviors, few studies have investigated the effect of age at first alcohol use on suicidal ideation among adolescents. The objective of this study was to investigate the effect of age at first alcohol use on suicidal ideation.

METHODS

Data for this study were obtained from the 2015 Youth Risk Behavior Surveillance system. A sample of 10,745 adolescents aged 14-18 years (50.9% males) were analyzed using logistic regression with suicidal ideation as the outcome variable and age at first alcohol use as the main explanatory variable.

RESULTS

About 17% of adolescents experienced suicidal ideation during the past 12 months and 15.6% started having alcohol before age 13. Adolescents who started having alcohol before age 13 had 1.60 times higher odds of experiencing suicidal ideation and adolescents who started having alcohol by age 13 or over had 1.47 times higher odds of experiencing suicidal ideation. Other significant factors associated with suicidal ideation include experience of forced sex, physical teen dating violence, bullying, and feeling sad or hopeless. Having sufficient sleep lowered the odds of suicidal ideation.

LIMITATIONS

The use of cross-sectional data limits the extent to which we can make causal claims regarding age at first alcohol use and suicidal ideation.

CONCLUSIONS

Younger age at first alcohol use was associated with increased likelihood of suicidal ideation. Public health initiatives that seek to address the co-occurring problems of alcohol use and mental health illness, sexual violence, and victimization among sexual minority youth could help in reducing suicidal ideation.

The longitudinal association between cognitive control capacities, suicidality, and depression during late adolescence and young adulthood

This study examined the association between cognitive control capacities, suicidal thoughts and attempts, and depressive symptoms during late adolescence and young adulthood. The sample included 4192 participants (55.5% female) from the United States who participated in Waves III (2001-2002; respondent age 18-26 years) and IV (2007-2008; respondent age 24-33 years) of the National Longitudinal Study of Adolescent to Adult Health. Data were analyzed using structural equation modeling. Suicidality in late adolescence predicted depressive symptoms in young adulthood. Depressive symptoms were not predictive of later suicide ideation nor attempts. Working memory was associated with lower depressive symptoms. Higher verbal ability was associated with more suicidal thoughts but not attempts. Internal locus of control was associated with decreased depressive symptoms and suicidal thoughts/attempts in young adulthood. Findings suggest that cognitive control capacities developed in adolescence differentially predict depressive symptoms, suicidal thoughts, and suicide attempts in young adulthood.

Prison Suicide in Comparison to Suicide Events in Forensic Psychiatric Hospitals in Germany

Background: There is limited international as well as national research on suicide events in prisons and in forensic psychiatric hospitals. This retrospective study compares completed suicide events within these two high-risk populations in state institutions over a time period of 5 years from 2000 to 2004. Material and Methods: Data was collected through a nationwide survey: all forensic psychiatric hospitals within Germany were contacted via postal mail and received a questionnaire concerning the suicide events from 2000 to 2004. All federal lands of Germany were similarly assessed by a survey endorsed by the respective federal ministries of justice. All prison institutions (100%) participated in the survey, while 84% (53 units) of the forensic psychiatric hospitals nationwide contributed. A comparative statistical analysis was conducted using Fisher's exact test or the Mann-Whitney U-test (age). A multivariate logistic regression analysis was done to assess adjusted effects. For the Kaplan-Meier analysis, the months until suicide were analyzed followed by a Cox-regression analysis. Results: There was no statistically significant difference between the mean suicide rate in forensic psychiatric hospitals (123/100.000, 95% confidence interval: [0.00103, 0.00147]) and in the prison system (130/100.000, 95% confidence interval: [0.00109, 0.00154]). Patients who committed suicide in the forensic hospitals were, in comparison to the prison system, more likely to have committed a violent offense and have had a prior history of suicide attempts. The duration from admission into the institution to the suicide event was significantly shorter in the prison group. Also, younger people commited suicide earlier during their stay in a forensic psychiatric hospital or prison. Conclusions: While the results suggest a necessity to optimize data collection in the prison system (prior suicide events and history of mental disorder), it is important to discuss the current discharge arrangements within the forensic hospitals.

Demographic and Clinical Characteristics of Completed Suicides in Mexico City 2014-2015

Objective: To analyze sex differences in demographic and clinical characteristics of individuals who died by suicide in Mexico City. Method: Statistical analysis of residents of Mexico City whose cause of death was suicide, during two years period from January 2014 to December 2015, with a coroner's report. Suicide mortality rates were calculated by age, sex, and location within the city. The Chi-squared test was used to assess statistical differences. Results: From January 2014 to December 2015, 990 residents of Mexico City died by suicide (men: 78.28%, women: 21.72%). Among males, the highest mortality rates were among the groups of 20-24 and 75-79 years old, whereas in women, the group with the highest mortality rate was 15 to 19 years old. 74% of the sample used hanging as suicide method. However, men had higher rates of a positive result in the toxicology test (40%) (p < 0.05). There was no concordance between male and female suicide by city jurisdictions. Conclusion: Our results provide evidence that the characteristics of Mexico City's residents who committed suicide had significant sex-related differences, including where they used to live. Understanding the contributory factors associated with completed suicide is essential for the development of effective preventive strategies.

Distinguishing Levels of Suicide Risk in Depressed Male Veterans: The Role of Internalizing and Externalizing Psychopathology as Measured by the MMPI-2-RF

Suicide occurs at high rates among veterans, underscoring a need for improved identification of veterans at risk of engaging in suicidal behavior. Considering dimensions of psychopathology in the context of an ideation-to-action framework, the present study examined the utility of the Minnesota Multiphasic Personality Inventory–2–Restructured Form in distinguishing depressed, psychiatrically hospitalized male veterans ( N = 430) at varying levels of suicide risk. Analysis of variance and hierarchical logistic regression analyses indicated that internalizing scales differentiated depressed ideators ( n = 147) and depressed controls ( n = 143); and in line with expectations, both broad and narrowly focused externalizing scales provided incremental validity in distinguishing depressed attempters ( n = 140) from depressed ideators. Interactions between Suicidal/Death Ideation and externalizing scale scores were found to differentiate only depressed ideators from depressed controls. Clinical implications in the areas of suicide risk assessment and therapeutic interventions with suicidal veterans are discussed.

Factors associated with suicide among adolescents and young adults not in mental health treatment at time of death

BACKGROUND

Suicide is the third-leading cause of death among Illinois residents aged 15 to 24 years. The Illinois Violent Death Reporting System (IVDRS) was developed to help prevent these deaths by providing timely, complete data. Understanding the circumstances surrounding suicide for those aged 15 to 24 years who are not receiving mental health treatment can help others: (1) recognize signs of potential crisis and (2) connect them to mental health treatment.

METHODS

The IVDRS data were collected from five Illinois counties-Cook, DuPage, Kane, McHenry, and Peoria-from 2005 to 2010. All cases with the manner suicide, aged 15 to 24 years, were extracted for analysis. Data were described using frequencies and percentages, and statistical differences between groups were determined using χ analysis.

RESULTS

There were a total of 386 suicides in those aged 15 to 24 years in IVDRS from 2005 to 2010. Most 15- to 19-year-olds (67%) and 20- to 24-year-olds (78%) were not receiving mental health treatment at the time of death. Among those not receiving mental health treatment, 22% and 13% of those aged 15 to 19 and 20 to 24 years, respectively, had disclosed their intent to commit suicide to another. One third were identified as being depressed or in a depressed mood (not necessarily a clinical diagnosis) in both age groups. One quarter in both age groups experienced a crisis (current, acute precipitating, or forthcoming event) within 2 weeks of their suicides.

CONCLUSIONS

The majority of adolescents and young adults were not in mental health treatment at the time death. Among those not in mental health treatment at the time of death, the 15- to 19-year-olds were more likely to share their suicidal intentions than the 20- to 24-year-olds.

LEVEL OF EVIDENCE

Epidemiological study, level IV.

Suicide in Illinois, 2005-2010: A reflection of patterns and risks by age groups and opportunities for targeted prevention

BACKGROUND

Suicide accounts for two thirds of all deaths from intentional or violence-related injury and is a leading cause of death in the United States. Patterns of suicide have been well described among high-risk groups, but few studies have compared the circumstances related to suicides across all age groups. We sought to understand the epidemiology of suicide cases in Illinois and to characterize the risks and patterns for suicide among different age groups.

METHODS

We used suicide data collected from the Illinois Violent Death Reporting System to assess demographics, method of suicide, circumstances, and mental health status among different age groups.

RESULTS

Between 2005 and 2010, 3,016 suicides were reported; 692 (23%) were female, and the median age (n = 3,013) was 45 years (range, 10-98 years). The most common method/weapon types were hanging/strangulation (33%), firearm (32%) and poisoning (21%). Hanging was more common (74%) among young people aged 10 to 19 years, while firearm use was more common among elderly persons age 65 years and older (55%). The percentage of victims within an age group experiencing a crisis within two weeks before committing suicide was highest among 10- to 14-year-olds, while the risk factor of having a family member or friend die in the past 5 years was highest among older victims.

CONCLUSION

The final analysis demonstrated age-related trends in suicide in Illinois, suggesting prevention programs should tailor services by age.

LEVEL OF EVIDENCE

Epidemiologic study, level IV.

Intra-personal and extra-personal predictors of suicide attempts of South Korean adolescents

The purpose of this study was to explore significant variables predicting adolescent suicidal attempts. Socio-environmental variables such as gender, school record, school grade, school adaptation, and family intimacy together with intra-individual variables including depression, anxiety, delinquency, stress, and self-esteem were considered as candidates. Data from 1481 adolescents were collected from Korea National Youth Policy Institute. For statistical analyses, hierarchical logistic regression analysis was performed. Results of hierarchical logistic regression analysis showed that gender, school grade, depression, delinquent, stress, and family intimacy were significant predictors of suicidal attempts of adolescents. Among those, the most powerful predictor was depression, and the second was delinquency. Classification accuracy by the model of our study was 87.6%. Implications and limitations of present study and suggestions for future study were discussed.

Individual and area-level factors correlated with death by suicide in older adults

OBJECTIVE

To determine the influence of individual and area-level characteristics associated with suicide in older adults.

METHOD

This study used two complementary data sources. The first used administrative data from the Quebec Coroner's office and included information on suicide deaths in older adults aged 65years and over who died by suicide between 2000 and 2005 (n=903 persons). The second data source, which was used to identify the control group, came from a longitudinal study on seniors' health that was conducted in Quebec between 2004 and 2005 (n=2493 persons). Logistic regression analyses were used to test for associations between suicide and individual and area-level level characteristics.

RESULTS

Suicide was associated with male gender, age, the presence of a physical and mental disorder and the use of health services. At the area-level level, suicide was associated with a higher population density, concentration of men, lower rates of education and higher rate of unemployment. Gender specific analyses also showed different patterns of associations on suicide risk.

CONCLUSIONS

Suicide in older adults is associated with area-level and individual characteristics. This suggests that policies targeting only one level of risk factors are less likely to significantly influence suicide among this population.