Suicide in the elderly

Suicidality in Veterinarians: Trends at Different Career Stages and a Test of the Interpersonal Theory of Suicide

OBJECTIVE

The aim of this study was to investigate sex differences in suicide ideation and attempt at different career stages and test hypotheses derived from the Interpersonal Theory of Suicide (IPTS) in a sample of veterinarians.

METHOD

The sample of currently practicing veterinarians used for this study (N = 10,319) was derived from a larger sample. Participants completed an online self-report questionnaire.

RESULTS

As predicted, women generally had a higher prevalence of suicide ideation and attempt across career stages, except men and women showed similar rates of suicide attempt after veterinary school. Contrary to hypotheses, no interaction effects between IPTS variables were observed. However, perceived burdensomeness, thwarted belongingness, and hopelessness exhibited the main effects of suicide ideation, and there were main effects of perceived burdensomeness and hopelessness on suicide attempt. Compared with perceived burdensomeness and thwarted belongingness, hopelessness had a relatively more robust relationship with suicide ideation. We also found a significant relationship between fearlessness about death and suicide attempt, but no relationship between self-reported pain tolerance and suicide attempt.

CONCLUSIONS

Some of our findings were consistent with the IPTS while others were not. Future research would benefit from a longitudinal examination of suicidality in veterinarians.

PROTOCOL: Non-pharmacological interventions for older people with a diagnosis of depression: An evidence and gap map

This is the protocol for an evidence and gap map. The objectives are as follows: To map available randomized control trials, economic evaluations, and systematic reviews that assess the effectiveness and cost-effectiveness of non-pharmacological interventions for older people with a diagnosis of depression and identify any existing gaps in the evidence that can inform future research.

Trends of completed suicide rates among Malaysian elderly between 1995 and 2020

BACKGROUND

Suicide among the elderly has become a global public health concern. This study was carried out to determine the trend of completed suicide rates according to age, sex, and ethnicity and the suicidal methods among the elderly in Malaysia.

METHODS

All suicide-related deaths in elderly aged 60 years and above from the Year 1995 to 2020 reported to the National Registration Department (NRD) were analyzed. Causes of death for suicide were coded based on the International Statistical Classification of Diseases and Related Health Problems, 10th Revision (ICD-10). The completed suicide rate was calculated by dividing the completed suicide number by the total elderly population for the respective year.

RESULTS

Overall, the analysis of 1,600 suicide-related deaths was investigated over 26 years. Male was seen to be correlated with higher suicidal risk, with a male-female relative risk (RR) = 1.89 (95%CI:1.46,2.45). The risk of suicide was also found to be significantly higher for those aged 60 to 74 years old and Chinese, with RR = 4.26 (95%CI:2.94, 6.18) and RR = 5.81 (95%CI: 3.70, 9.12), respectively. Hanging was found to be a statistically significant suicide method (IRR:4.76, 95%CI:2.34,9.65) as compared to pesticide poisoning. The completed suicide rate was fluctuating over the years.

CONCLUSIONS

In conclusion, it is believed that Malaysia's elderly suicide rate has reached an alarmingly high incidence. By identifying the crucial criteria of sociodemographic factors, the government and responsible agencies have the essential and additional information to put together a more effective strategy and approach to overcome the issue in the future.

Suicidal Behavior Among Elderly Inpatients: its Relation to Functional Disability and Pain

Background

Suicidal behavior (SB) among elderly inpatients has exhibited a growing global drift. This study aimed to establish the prevalence of SB among elderly inpatients and identify the relationship between SB and depression and functional disability.

Methods

This cross-sectional study included 136 randomly selected elderly inpatients aged 60 years and older who were hospitalized in a tertiary referral center in Kuala Lumpur, Malaysia. The study utilized the following scales as the assessment tools: The Columbia Suicide Severity Rating Scale (CSSRS), Geriatric Depression Scale (GDS-15), Mini International Neuropsychiatric Interview (M.I.N.I.), the Modified Barthel Index (Shah version) (MBI), and visual analog scale.

Results

The rates of current major depressive disorder (MDD), recurrent MDD, passive suicidal ideation (SI), and active SI were 24.3%, 8.8%, 27.9%, and 5.9%, respectively. Depressed elderly had 6 to 17 times higher risk of developing passive or active SI. “Wish to be dead,” ie, passive SI was associated with admission to oncology or surgical ward and the presence of current MDD. The findings of the study revealed that active SI was associated with being over 80 years old (p = 0.027), being single (p = 0.042), admission to the oncology ward (p = 0.012) or orthopedic ward (p = 0.032), having positive GDS (p = 0.049), and the presence of current MDD (p = 0.019) or recurrent MDD (p = 0.010). According to the study findings, no association has been observed between passive and active SI and level of independence and acute pain.

Conclusion

The risk of depressed elderly inpatients having passive and active SI is high. Hence, screening for depression and SI is crucial for prompt treatment and management.

Prevalence of Major Depressive Disorder and Correlates of Thoughts of Death, Suicidal Behaviour, and Death by Suicide in the Geriatric Population-A General Review of Literature

Background: There has been an increase in deaths by suicide in old age in the last decade. Depression and suicide in the elderly, 60 years and above, is a major global public health concern. Determining the prevalence of depression, and correlates of death by suicide in the geriatric population, is an important first step toward addressing this public health concern. This literature review aims to determine the prevalence of major depressive disorders and the correlates of death by suicide in the geriatric population. Methods: This general review of the literature was performed using relevant search terms to determine both the prevalence of depression and the correlates of death by suicide among the geriatric population. Databases such as MEDLINE, PsycINFO, CINAHL, and PubMed were searched. Relevant and current articles were extracted, reviewed, and analyzed. The elderly population was defined as individuals 60 years and above. Only full texts articles in English were reviewed. Findings: The prevalence estimates of major depressive disorder in the elderly ranged from 5.37 to 56%. Adults aged 60 years and older have a high risk of depression that exposes them to suicide. Moreover, elderly women are more likely to experience depression than elderly men, but successful suicide is more common in men. Depression and other mental health conditions (schizophrenia, anxiety disorders) and perceived stress were found to be predictors of suicide in the elderly. Other predictors included physical illnesses such as malignancies, financial constraints, cuckoldry, and sexual dysfunction, and also social factors like living alone triggers depressive symptoms and increases suicidal risk in the elderly. Hanging was found to be the most common method of death by suicide for both sexes. While elderly women preferred poisoning, elderly men in Western countries preferred firearms. Differences in gender, the aging process and social issues were also contributing factors to methods used for suicide. Conclusions: Depression and debilitating physical illnesses were identified as significant contributors to suicide risk in the elderly population, and emphasis should be placed on identifying these factors early and treating them. Recognizing and addressing factors that predict suicide in the elderly will help to improve the mental wellbeing of the elderly.

Greater white matter hyperintensities and the association with executive function in suicide attempters with late-life depression

Late-life depression (LLD) is associated with greater risk of suicide and white matter hyperintensities (WMH), which are also found in suicide attempters regardless of age. Greater periventricular WMH are related to worse cognitive function. We investigated the spatial distribution of WMH in suicide attempters with LLD and its association with cognitive function. We recruited 114 participants with LLD (34 with history of suicide attempt and 80 without) and 47 older adult controls (individuals without LLD or history of suicide attempt). WMH were quantified by an automated segmentation algorithm and were classified into different regions. Suicide attempters with LLD had significantly higher global WMH (F3, 150 = 2.856, p = 0.039) and periventricular WMH (F3, 150 = 3.635, p = 0.014) compared to other groups. Suicide attempters with high WMH had significantly lower executive function, which could be an underlying mechanism for cognitive decline in older adults with suicidality.

Factors Influencing Suicidal Ideation and Attempts among Older Korean Adults: Focusing on Age Discrimination and Neglect

This study was conducted to identify factors influencing the development of suicidal ideation and the transition from suicidal ideation to attempts by focusing on experiences of age discrimination and neglect among older Korean adults. This study analyzed data from 10,042 older adults from the 2017 National Survey of Older Koreans using national representative samples. Multiple logistic analyses were used to identify factors influencing the development of suicidal ideation and transition from suicidal ideation to attempts. While younger age, higher educational attainment, living alone, number of chronic diseases, depressive symptoms, social isolation, social support, experience of neglect, and age discrimination influenced the development of suicidal ideation, all of these did not influence the transition from ideation to attempts. Factors influencing this transition included male gender, less educational attainment, and experience of age discrimination. Thus, social efforts to reduce age discrimination are necessary to prevent suicide attempts among Korean older adults.

Triggers for attempted suicide in Istanbul youth, with special reference to their socio-demographic background

OBJECTIVE

Suicidal behavior of young people is a topic of utmost importance because suicide is irreversible, and should be prevented. Knowing about the psychosocial background and the triggering events could help in preventing suicidal behavior. We therefore aimed at identifying psychosocial factors that may trigger suicidal behavior in youth.

METHODS

We analyzed retrospectively the standardized records of 2232 youths aged ≤25 years, who were treated after a suicide attempt at emergency units of public hospitals in Istanbul, Turkey during a period of 1 year. We describe this population according to sex and socio-economic conditions, like educational, occupational, relationship status and link them with their reported reasons for suicide attempts.

RESULTS

The majority of patients were female (81.6%, N = 1822 females, 18.4%, N = 410 males). Independent of their educational and occupational background, patients indicated most frequently intra-familial problems (females 45.8%, males 30.5%), intrapersonal problems (females 19.9%, males 18.5%), and relationship problems (females 11.3%, males 23.9%) as triggering reasons.

CONCLUSIONS

Because intra-familial problems were the most frequently reported triggers of suicide attempts, preventive measures should focus on handling intra-familial conflicts. As sex differences were observed for the second-most common trigger-reasons, prevention should also focus on differentially handling intrapersonal and relationship conflicts better.

The influence of family problems and conflicts on suicidal ideation and suicide attempts in elderly people

Family conflicts and problems involve meanings that are constructed during the course of an existence, and become associated with other factors in manifestations of suicidal thoughts and suicide attempts in elderly people. These questions are analyzed in a qualitative study of interviews with elderly people in four different locations in Brazil. A total of 63 men and women took part, and the interviews were held in 2013 and 2014. The field data showed the following factors - in order of the importance that the interviewees gave to them: significant family losses; family and inter-generation conflicts; and explicit and veiled violence. The speech of the subjects showed, as elements that led them to try to end their lives: sadness; feelings of abandonment; isolation, incomprehension of their desires by their family members, and absence of manifestations of affection and/or respect. When telling their stories, they also gave clues about what they expect from their families: welcome, acceptance, comprehension and freedom to carry out their minor wishes; to end their lives in a dignified manner without suffering; to find help and protection for the progressive reduction of their capacities; to continue to participate in family decisions, and to prolong to the maximum their social achievements and prerogatives, such as property, authority and respect.

Suicide Prevention for Local Public and Volunteer Relief Workers in Disaster-Affected Areas

OBJECTIVES

Local workforces play a critical role in disaster relief and reconstruction. However, the mental health of local relief workers might be affected by disasters, threatening the sustainability of local workforces. In this study, we tried to address this concern by investigating the well-being of local relief workers and its association with suicidal ideation.

DESIGN

A retrospective study was conducted. Surveys were designed to collect data from a purposive sample of local disaster relief workers who survived a disaster. Binary logistic regression analysis was performed to test hypotheses.

SETTING AND PARTICIPANTS

The study sample was from a population of local relief workers in the worst quake-hit regions in China in 2008. The respondents were local relief workers from a town in these regions. All of the 83 local relief workers were invited 11 months after the earthquake, and 70 joined the study, resulting in a response rate of 84.3%.

MAIN OUTCOME MEASURES

The dependent variable was postdisaster suicidal ideation. The independent variables were bereavement, depression and posttraumatic stress, daily work hours, job burnout, work-family conflict, and work engagement.

RESULTS

Approximately 21.4% of participants reported suicidal ideation after the earthquake in comparison with 7.1% before the earthquake. One potential risk factor was an interaction effect of job burnout and work-family conflict (odds ratio [OR] = 3.738; 95% confidence interval [CI], 1.086-12.868). Potential protective factors included daily work hours (OR = 0.317; 95% CI, 0.106-0.952) and work engagement (OR = 0.297; 95% CI, 0.091-0.969).

CONCLUSIONS

Findings suggest that for local relief workers who are also disaster survivors, meaningful engagement such as participation in disaster relief could be salutary to their mental health, but overwork and interference with personal life could be harmful and increase the risk of suicidal ideation. Discretion is needed in managing local workforces, particularly with long work hours and work-family balance.

Suicide in an ageing UK population: problems and prevention

Purpose

Suicide can be an emotive, and at times, controversial subject. The purpose of this paper is to reflect on the social, health, personal, and cultural issues that can arise in later life and the potential reasons for suicide. It will analyse already recognised risk factors of suicide in older adults and focus on improving knowledge about the social meaning and causation of suicide for older people. It will also consider suicide prevention policies, their practice implications, and whether they are successful in protecting this potentially vulnerable cohort.

Design/methodology/approach

A synopsis of available literature in the form of a general review paper of suicide of older adults.

Findings

There is evidence that the ageing process often leads to a set of co-morbidities and a complex and diverse set of individual challenges. This in turn equates to an increased risk of suicide. There is no easy answer to why there is evidence of a growing number of older adults deciding that suicide is there only option, and even fewer suggestions on how to manage this risk.

Social implications

The entry of the “baby boom” generation into retirement will lead to the potential of an increase in both suicide risk factors and older adults completing suicide. This is on the background of a demographic surge which is likely to place additional pressures on already under-resourced, and undervalued, statutory and non-statutory services.

Originality/value

A literature search found very little information regarding older adults and suicide risk, assessment, treatment or prevention.

Neurobiology of Elderly Suicide

Suicide in the elderly is an underestimated and complex issue that has mainly been explored in sociological, clinical and psychological perspectives. Suicide in non-elderly adults has been associated with diverse neurobiological alterations that may shed light on future predictive markers and more efficient preventative interventions. The aim of this paper was to review studies specifically investigating the neurobiology of elderly suicidal behaviour. We performed a systematic English and French Medline and EMBASE search until 2013. Contrary to literature about the non-elderly, we found a paucity of studies investigating the biomarkers of suicidal risk in elderly adults. Main findings were found in the neurocognitive domain. Studies generally supported the existence of cognitive deficits, notably decision-making impairment and reduced cognitive inhibition, in patients with a history of suicidal act compared to patients without such history. However, replications are needed to confirm findings. Due to several limitations including the small number of available studies, frequent lack of replication and small sample size, no firm conclusions can be drawn. The authors encourage further investigations in this field as insight in the neurobiology of these complex behaviors may limit clichés about end of life and aging, as well as improve future prevention of suicide in the elderly.

Prevalence of depressive symptoms and suicidal thoughts among elderly persons in rural Bangladesh

BACKGROUND

Depression, if broadly defined, is the commonest late-life mental disorder. We examined the distribution of depressive symptoms and suicidal thoughts, across age, sex, literacy, and marital status, among elderly individuals residing in rural Bangladesh and participating in a population-based study on health and aging.

METHODS

Prevalence figures of depressive symptoms were assessed with SRQ20 (n = 625), and possible social network and economic associations were examined. Morbidity accounts of depressive symptoms and suicidal thoughts were examined for a subsample that also underwent complete medical examination (n = 471).

RESULTS

We selected for analyses the items that corresponded to DSM-IV criteria and constructed a dichotomous variable. The prevalence was 45%, and most pronounced among the oldest women (70%). The overall prevalence of suicidal thoughts was 23%. Being a woman, illiterate or single were all risk factors for depressive symptoms and suicidal thoughts. These associations remained unaccounted for by the social network and economic variables. Co-residing with a child and having a high quality of contact were protective of both depressive symptoms and suicidal thoughts. The main findings were replicated in the subsample, where it was found that morbidities were also associated with the outcomes, independently of the four main predictors.

CONCLUSIONS

Prevalence figures for depressive symptoms among elderly in rural Bangladesh are high. Demographic, social network, and morbidity factors are independently associated with both depressive symptoms and suicidal thoughts. This is the first study to report prevalence figures for depressive symptoms in this population.

Cognitive inhibition in older high-lethality suicide attempters

BACKGROUND

People who attempt suicide often display cognitive impairments, particularly poor cognitive control. Could poor cognitive control contribute to high suicide rates in old age? A component of cognitive control, cognitive inhibition-active suppression of task-irrelevant processing-is very sensitive to aging and has been linked to attempted suicide. We investigated cognitive inhibition in older high-lethality suicide attempters, closely resembling suicide victims, as well as low-lethality attempters, and control groups with and without depression and suicidal ideation.

METHODS

A total of 102 participants aged 60 years and older (17 psychiatrically healthy control subjects, 38 depressed control subjects, 16 suicide ideators, 14 low-lethality suicide attempters, and 17 high-lethality suicide attempters) underwent comprehensive clinical and cognitive assessments. They completed the Delis-Kaplan Executive Function System Color-Word Interference Test, a validated modification of the Stroop test.

RESULTS

High-lethality suicide attempters demonstrated a distinct pattern of cognitive inhibition deficits. Compared with psychiatrically healthy control subjects and suicide ideators, high-lethality attempters took longer to complete inhibition trials, even after accounting for potential confounding factors (age, education, Mini mental state examination score, information processing speed, and accuracy). Compared with non-suicidal depressed and healthy control subjects, low-lethality suicide attempters committed more uncorrected errors; however, this difference was not specific to the inhibition condition.

CONCLUSIONS

Older suicide attempters are a cognitively heterogeneous group. Poor cognitive control in high-lethality attempters may undermine their ability to solve real-life problems, precipitating a catastrophic accumulation of stressors. Meanwhile, low-lethality attempters' poor performance may reflect a careless approach to the task or faulty monitoring.

The use of regression methods for the investigation of trends in suicide rates in Hungary between 1963 and 2011

PURPOSE

Suicide rates in Hungary have been analyzed from different aspects in recent decades. However, only descriptive rates have been reported. The aim of our epidemiological study was to characterize the pattern of annual rates of suicide in Hungary during the period 1963-2011 by applying advanced statistical methods.

METHODS

Annual suicide rates per 100,000 population (>6 years) for gender, age group and suicide method were determined from published frequency tables and reference population data obtained from the Hungarian Central Statistical Office. Trends and relative risks of suicide were investigated using negative binomial regression models overall and in stratified analyses (by gender, age group and suicide method). Joinpoint regression analyses were additionally applied to characterize trends and to find turning points during the period 1963-2011.

RESULTS

Overall, 178,323 suicides (50,265 females and 128,058 males) were committed in Hungary during the investigated period. The risk of suicide was higher among males than females overall, in all age groups and for most suicide methods. The annual suicide rate exhibited a significant peak in 1982 and remained basically constant after 2006. Different segmented patterns were observed for the suicide rates in the various age groups.

CONCLUSIONS

Suicide rates revealed segmented linear pattern. This is the first detailed trend analysis with risk estimates obtained via joinpoint and negative binomial regression methods simultaneously for age-specific suicide frequencies in Hungary.

Understanding the life experiences of older adults in Korea following a suicide attempt

The purpose of this article is to describe life experiences following suicide attempts from the perspective of older Korean adults. Both field notes and in-depth interviews with 35 elderly Koreans who had attempted suicide were analyzed through qualitative content analysis. With an underlying theme of "life with no way out for those who believe they do not even have any luck in dying," I classified the experiences of participants in the wake of a failed suicide attempt into four categories: (a) facing additional hardships including deteriorating physical health, (b) having more sadness and loneliness than before the suicide attempt, (c) deepening dependency on tranquilizers, and (d) seesawing between despair and faint hope. Based on these research findings, I make four recommendations regarding secondary preventive interventions for elderly suicide attempters.

Deficit of cognitive inhibition in depressed elderly: a neurocognitive marker of suicidal risk

BACKGROUND

Cognitive deficits, in relation to ventral and dorsal prefrontal cortex dysfunctions, have been associated with a higher risk of suicidal acts in young adult patients. Although a public health concern, much less is known about the neurocognitive basis of suicidal behavior in elderly. Here, we aimed at assessing alterations in cognitive inhibition, a suspected major mechanism of the suicidal vulnerability, in suicidal depressed elderly.

METHODS

We compared 20 currently depressed patients, aged 65 and older who recently attempted suicide to 20 elderly subjects with a current depression but no personal history of suicide attempt and 20 elderly controls. Using an extensive neuropsychological battery, we particularly examined different aspects of cognitive inhibition: access to relevant information (using the Reading with distraction task), suppression of no longer relevant information (Trail Making Test, Rule Shift Cards), and restraint of cognitive resources to relevant information (Stroop test, Hayling Sentence Completion test, Go/No-Go).

RESULTS

After adjustment for age, intensity of depression, Mini-Mental State Examination score and speed of information processing, suicidal depressed elderly showed significant impairments in all 3 domains of cognitive inhibition in comparison to both control groups.

LIMITATIONS

Our results need replication in a larger sample size.

CONCLUSIONS

Our study suggests that the inability to inhibit neutral information access to working memory, restrain and delete irrelevant information may impair the patient's capacity to respond adequately to stressful situations subsequently leading to an increased risk of suicidal behavior during late-life depression. Interventions may be developed to specifically target cognitive impairment in the prevention of suicide in depressed elderly.

Mortalidade por suicídio em pessoas com 60 anos ou mais nos municípios brasileiros no período de 1996 a 2007

Este trabalho teve como objetivo conhecer a magnitude do suicídio em idosos em nível nacional. Foi feita uma descrição da mortalidade por suicídio nos municípios brasileiros, visando estabelecer aqueles de maior frequência do evento. Empregou-se dados do Sistema de Informação sobre Mortalidade (SIM/MS) para o período de 1996 a 2007 (triênios), sendo utilizados os eventos com códigos X60 a X84 e Y87.0 da 10ª revisão da Classificação Internacional de Doenças (CID-10). As taxas foram padronizadas segundo critérios da OMS. Verificou-se que 3.039 municípios brasileiros têm registros de casos de suicídio de pessoas com 60 anos ou mais em pelo menos um dos triênios analisados (54,6% do total de municípios). Um total de 29,3% de municípios se localiza na região Sul, 29,6%, na região Sudeste e 27,5% na região Nordeste. O Rio Grande do Sul concentra o maior percentual de municípios com casos nos quatro triênios (27,3%), sendo seguido pelos estados de São Paulo (17,4%) e Santa Catarina (9,1%). Quanto à evolução temporal, observou-se redução das taxas do triênio inicial para o triênio final em 32 dos 51 municípios com taxas mais elevadas em todo o período de análise. A razão média de óbitos homem/mulher foi de 2,8 mortes masculinas para cada morte feminina. O principal meio empregado é o enforcamento, estrangulamento e sufocação tanto entre homens (58,2%) quanto entre mulheres (49,8%).

Fatores associados com a mortalidade por suicídio de idosos nos municípios brasileiros no período de 2005-2007

Este trabalho teve como objetivo realizar análise ecológica sobre suicídio de pessoas com 60 anos ou mais nos municípios brasileiros no triênio 2005-2007, investigando-se fatores associados ao evento. Foram utilizados dados referentes aos óbitos por suicídio extraídos do Sistema de Informação sobre Mortalidade (SIM), códigos X60 a X86 e Y87.0 (CID-10). Foram ajustados modelos de regressão de Poisson, binomial negativa e binomial negativa inflacionada de zeros (ZINB). Este último exibiu os melhores resultados quando da comparação de modelos. Foram identificados como fatores associados ao suicídio: proporção de não brancos (associação negativa), taxa de internação por transtornos de humor (associação positiva) e razão de sexo (associação negativa).

Suicide of elderly persons: towards a framework for prevention

Suicide is an act of intentionally terminating one's own life. Although suicide rates vary across demographic categories, they have increased by approximately 60% in the last 50 years. Many studies of adolescent suicidal behavior have noted impulsivity to be a common feature in the younger age group, while with older people there is evidence of planning and a strong intent to die. In fact, older people are most successful as an age group with approximately one in four attempts resulting in death. While very comprehensive statistics are available on many aspects of this problem for the Turkish population as a whole, this data does not include physical factors like illnesses, legal domiciles like nursing homes, economic standards and history of attempted suicides. This necessary data would add greatly to the available data and accuracy of research in this area. Whereas Turkish national risk factor procedures are available, precaution procedures and suicide attempt data is not. There is no way of knowing how many deceased had a history of repetitions. It is suggested that this could be attributed to routine failure to observe and mitigate risk factors. The size of this problem is being demonstrated with this presented case report about a planned complex suicide with multiple sharp forced injuries and substance intoxication; a completed suicide that was potentially preventable with timely detection and intervention. In accordance, suicidal risk factors in the old age population, precautions, along with the characteristics of this suicidal case, are evaluated within existing published work.

Suicidality and suicide in older people

Suicide is accepted as a major health problem worldwide, especially in the young and middle aged. It is, however, a significant health problem in older people as well, and those aged 65 years and over generally have the highest suicide rates compared with all other age groups. In research literature from the last decade, there has been an increased interest in disentangling the phenomenon of suicide in later life. This paper aims to critically review the literature on suicide and suicidality in later life published from 2000 to 2009. Prevalence rates as well as risk and protective factors are mapped and correlates reviewed. The association between suicidality and help-seeking behaviour is considered. Finally, potential prevention strategies are reviewed.

TPH gene polymorphism and aging: indication of combined effect on the predisposition to violent suicide

Findings relating serotonin to suicidal behavior suggest the role of genes for tryptophan hydroxylase (TPH) in the genetic substrate of this disorder. Association of Tph1 gene and suicidality, despite considerable research efforts, remains controversial. Polymorphism A218C in intron 7 of Tph1 gene was studied in violent suicide victims (N = 247) and controls (N = 320) of Slavic (Croatian) origin, with specific consideration of the influence of subjects' age. The frequency of, allegedly less active, CC genotype was increased in older (above 65 years) victims as compared to controls (P = 0.0126 and 0.0008, for comparison with age-specific and integral control samples, respectively), while there were no differences between victims under 65 years and controls. Excess of the CC genotype in elderly victims of violent suicide points to the possible combined effect of the respective genetic factor and physiological changes during aging on the predisposition to this disorder.

Suicidality and bereavement: complicated grief as psychiatric disorder presenting greatest risk for suicidality

The influence of complicated grief (CG) on suicidality among bereaved adults was examined. The Yale Evaluation of Suicidality scale and the Inventory of Complicated Grief-Revised were administered to 309 bereaved adults in face-to-face interviews conducted at baseline (6.2 months post-loss) and at follow-up (10.8 months post-loss). Cross-sectionally, CG was associated with a 6.58 (95% CI: 1.74-18.0) times greater likelihood of "high suicidality" at baseline, and an 11.30 (95% CI: 3.33-38.10) times greater risk of high suicidality at follow-up, after controlling for gender, race, major depressive disorder (MDD), posttraumatic stress disorder (PTSD), and social support. Longitudinally, CG at baseline was associated with an 8.21 (95% CI: 2.49-27.0) times greater likelihood of high suicidality at follow-up, controlling for the above confounders. The study results indicate that CG substantially heightened the risk of suicidality after controlling for important confounders such as MDD and PTSD, suggesting that CG poses an independent psychiatric risk for suicidal thoughts and actions.