Suicide risk within 1 year of dementia diagnosis in older adults: a nationwide retrospective cohort study

Risk of suicide in people living with dementia and comorbid mental health conditions: A systematic review and meta-analysis

BACKGROUND

People with dementia (PwD) are more vulnerable to experiencing suicidal ideation than the general population. Within this group, certain risk factors such as being younger and male increase risk of death by suicide. However, currently little is known on whether comorbid mental health conditions in this population also elevate the risk of suicide outcomes. We aimed to determine if comorbid mental health conditions increased the risk of suicidal ideation, suicide attempts and death by suicide in PwD.

METHODS

Five databases were searched from inception to July 2023. Peer-reviewed publications reporting data for suicide outcomes in PwD with a comorbid mental health condition were included. Random effects meta-analyses models were used to calculate the pooled effect sizes.

RESULTS

22 relevant studies were identified for inclusion 14 of which reported sufficient data to be included in the meta-analyses. In PwD, those with a general psychiatric comorbidity were at increased risk of death by suicide (OR = 2.61, [95%CI: 1.47; 4.63]). Those with comorbid depression or anxiety were at increased risk of all suicide outcomes (depression: ideation OR = 5.11, [95%CI:1.73;15.07], attempt OR = 7.75, [95%CI:2.68;22.41], death OR = 3.44 [95%CI:1.65;7.18]; anxiety: ideation OR = 3.69, [95%CI:1.41;9.66]; attempt OR = 2.27, [95%CI:1.08;4.78]; death OR = 2.36, [95%CI:2.02;2.75]). PwD and comorbid personality disorder and substance use were at increased risk of suicide attempt (OR = 4.60, [95%CI:1.36;15.55] and death by suicide (OR = 2.19, [95%CI:1.80;2.66] respectively.

CONCLUSION

Comorbid mental health conditions put PwD at increased risk of suicide outcomes. There is an urgent need for the assessment and monitoring of mental health in PwD in routine care to mitigate suicide risk.

The impact of multimorbidity on suicidal behaviour: A systematic review and meta-analysis

INTRODUCTION

Multimorbidity, the co-occurrence of multiple health conditions, is increasingly recognised as a significant public health concern. While the association between multimorbidity and suicidal thoughts is well-documented, its relationship with suicidal behaviour remains underexplored. This study aims to quantify the association between multimorbidity and both suicide attempts and suicide mortality.

METHODS

We searched Medline, PsycINFO, and Scopus databases for studies published from January 1990 up to July 2024. We applied prespecified eligibility criteria to select studies for inclusion. To assess the risk of bias, we used the Mixed Methods Appraisal Tool. We conducted meta-analyses using random-effects models and assessed heterogeneity with Cochran's Q and I2 statistics. We evaluated publication bias using funnel plots and Egger's test. Sub-group analysis was conducted incorporating potential moderator variables.

RESULTS

Out of 2202 identified records, 38 studies were included in the analysis. Participants with multimorbidity were over five times more likely to attempt suicide compared to those without multimorbidity (pooled odds ratio [OR] = 5.31; 95 % confidence interval [CI] = 3.98, 7.09; I2 = 94.9 %). Multimorbidity was associated with an 83 % increased likelihood of suicide mortality (pooled OR = 1.83; 95 % CI = 1.21, 2.77; I2 = 99.9 %). Mental multimorbidity was associated with the highest odds of suicide attempts (OR = 6.96; 95 % CI = 4.94, 9.81; I2 = 81.8 %), with higher odds also observed in studies with single disease comparator (OR = 6.16; 95 % CI = 3.68, 10.31; I2 = 95.5 %), and across both high income and low-middle income regions. For suicide mortality, significant associations were found in studies assessing physical-mental multimorbidity (OR = 2.32; 95 % CI = 1.14, 4.71; I2 = 99.8 %), studies from Europe/USA and Asia, and those using a mixed comparator group, with additional significant effects noted by study design, publication year, covariate adjustment, and risk of bias.

CONCLUSIONS

Multimorbidity significantly increases the risk of both suicide attempts and suicide mortality. We recommend enhanced suicide risk assessment among patients with multiple chronic conditions, especially when mental health diagnoses are present.

Dementia subtypes and suicidality: A systematic review and meta-analysis

AIMS

Recent research has highlighted a link between dementia and increased risk of suicidal ideation, suicide attempts and suicide deaths. Understanding the relative risk of suicide between subtypes of dementia is important for services to offer appropriate intervention.

METHOD

We searched five databases from inception to July 2023 for peer-reviewed publications reporting suicidal ideation, suicide attempt or death by suicide for at least two dementia subtypes. Meta-analyses compared suicidality between subtypes of dementia with Alzheimer's Disease (AD).

RESULTS

From 4983 studies identified, 12 met inclusion criteria. Pooling data, people with Vascular Dementia were significantly more likely to experience suicidal ideation (OR= 2.02 [95 % CI= 1.06;3.8]) and attempt suicide (OR=1.94 [95 % CI= 1.28;2.94]) than people with AD, but not die by suicide (OR= 1.05 [95 % CI= 0.69;1.59]). People with Dementia with Lewy Bodies were significantly more likely to report suicidal ideation (OR= 1.56 [95 % CI= 1.09;2.23]) than AD but not attempt suicide (OR= 1.12 [95 % CI= 0.83;1.50]). People with Frontotemporal Dementia were significantly more likely to attempt suicide (OR= 2.42 [95 % CI= 1.02;5.72]) than people with AD but not report suicidal ideation (OR= 1.67 [95 % CI= 0.34;8.33]). People with Mixed Dementia were significantly more likely to attempt suicide (OR= 2.83 [95 % CI= 1.52;5.27]) than people with AD but not report suicidal ideation (OR = 1.65 [95 % CI= 0.5;5.46]).

CONCLUSIONS

Further research is needed to understand what underlies the increased risks of suicidal ideation and suicide attempts for rarer subtypes.

Bibliometric and visual analysis of suicide in aged people over the past 20 years

Background

The rapid aging of the global population presents pressing public health challenges, notably an increase in suicide rates among older adults. Despite this critical issue, there is a scarcity of comprehensive assessments regarding the existing literature on suicide within this demographic. This study seeks to employ bibliometric analysis and knowledge mapping to elucidate prevailing research trends and the overall status of this field.

Methods

We performed a comprehensive computer-based search of the Web of Science Core Collection to identify relevant articles and reviews concerning suicide in the elderly. A bibliometric analysis was conducted, examining various aspects including countries or regions, institutions, authors, journals, keywords, and references. This analysis utilized tools such as CiteSpace, VOSViewer, Pajek, and Excel 365 to facilitate a thorough assessment.

Results

The analysis covered 1,116 publications from 2005 to 2024. The annual number of publications showed a fluctuating upward trend, with notable decreases in 2007, 2012, 2015, 2017, and 2022, and increases in 2009, 2013, 2016, and 2019, peaking at 121 in 2021, with citations reaching 4,741 in 2022, but declining since then. The United States stands out as the most productive and influential country in the field, boasting the highest number of publications and citations. The country is home to institutions leading in both publication and citation metrics. Prominent authors contributing significantly to this domain include Conwell Yeates, Van Orden Kimberly A., and Waern Margda. Key journals disseminating crucial research are the Journal of Affective Disorders, American Journal of Geriatric Psychiatry, and Lancet. Frequent keywords in this field encompass depression, suicidal ideation, suicide, older-adults, risk, risk factors, prevalence, older adults, ideation, behavior, health, mental health, life, age, people, prevention, symptoms, scale, population, and elderly. The contemporary research emphasis is primarily on identifying, treating, and preventing the suicide risk associated with depression in older adults.

Conclusions

This study highlights the growing research focus on suicide in older adults, particularly related to depression and the identification, treatment, and prevention of suicide risk. The findings underscore the need for targeted prevention strategies and further investigation in this critical public health area.

Neurobiology and medico-legal aspects of suicides among older adults: a narrative review

The task of preventing suicide in older adults is an important social burden as older adults aged above 65 are exposed to singular psychological aspects that increase suicide risks. Moreover, when an older adult corpse is found, the medico-legal inspection represents a fundamental tool to identify the exact cause of death, classifying or excluding it as suicide. In this scenario, this review aims to explore the neurobiological factors that could be related to suicidal behavior in older adults. A further goal of this review is the exploration of the medico-legal aspects surrounding older adult suicides, clarifying the importance of forensic investigation. Particularly, this review examines issues such as neurotransmitter imbalances, cognitive impairment, neuroinflammation, psychosocial factors related to geriatric suicide, and neurodegenerative diseases. Additionally, medico-legal aspects such as policy considerations, legal frameworks, mental health assessments, ethical implications and forensic investigation were explored. Considering the importance of this phenomenon, especially in western countries, a need has emerged for focused screening tools on suicidal behavior among older adults, in order to contain it. Therefore, this review makes an exhaustive appraisal of the literature giving insights into the delicate interplay between neurobiology as well as mental health in relation to older adult suicide within a medico-legal context. The comprehension of different aspects about this complex phenomenon is fundamental to propose new and more effective interventions, supporting tailored initiatives such as family support and improving healthcare, specifically towards vulnerable ageing societies to reduce older adult suicide risks.

Suicide and dementia: A systematic review and meta-analysis of prevalence and risk factors

Dementia is a global health concern with increasing numbers of people living long enough to develop dementia. People with dementia (PwD) may be particularly vulnerable to suicidality. However, suicide in PwD has not been thoroughly explored. The objective of this review was to determine the prevalence and risk factors of suicide in PwD. Five databases were searched from inception to July 2023. Peer-reviewed publications reporting prevalence, risk factors or quantitative summary data for suicide outcomes in PwD were included. Random effects models were used to calculate the pooled prevalence and effect sizes. 54 studies met inclusion criteria. In PwD, the point prevalence of suicidal ideation was 10 % (95 %CI=6 %;16 %), 2-year period prevalence of suicide attempts was 0.8 % (95 %CI=0.3 %;2 %), 10-year period prevalence of suicide attempts was 8.7 % (95 %CI=6.0 %%;12.7 %) and the incidence of death by suicide 0.1 % (95 %CI=0.1 %;0.2 %). Compared to not having dementia, a diagnosis of dementia increased risk of suicidal ideation (OR=1.62[95 %CI=1.17;2.24]) but not risk of suicide attempt (OR=1.77 [95 %CI=0.85;3.69]) or death by suicide (OR=1.30 [95 %CI=0.81;2.10]). People with moderate dementia had significantly increased risk of suicidal ideation than those with mild dementia (OR=1.59[95 %CI=1.11;2.28]), younger PwD were at increased risk of dying by suicide (OR=2.82[95 %CI=2.16;3.68]) and men with dementia were more likely to attempt (OR=1.28[95 %CI=1.25;1.31]) and die by suicide (OR=2.88[95 %CI=1.54;5.39]) than women with dementia. This review emphasises the need for mental health support and suicide prevention in dementia care, emphasising tailored approaches based on age, symptoms, and being male.

Extreme Risk Protection Orders in Older Adults in Six U.S. States: A Descriptive Study

OBJECTIVES

Extreme Risk Protection Orders (ERPOs) allow a court to restrict firearm access for individuals ("respondents") at imminent risk of harm to self/others. Little is known about ERPOs use for older adults, a population with higher rates of suicide and dementia.

METHODS

We abstracted ERPO cases through June 30, 2020, from California, Colorado, Connecticut, Florida, Maryland, and Washington. We restricted our analysis to petitions for older (≥65 years) respondents, stratified by documented cognitive impairment.

RESULTS

Among 6,699 ERPO petitions, 672 (10.0%) were for older adults; 13.7% (n = 92) of these noted cognitive impairment. Most were white (75.7%) men (90.2%). Cognitively impaired (vs. non-impaired) respondents were older (mean age 78.2 vs 72.7 years) and more likely to have documented irrational/erratic behavior (30.4% vs 15.7%), but less likely to have documented suicidality (33.7% vs 55.0%). At the time of the petition, 56.2% of older adult respondents had documented firearm access (median accessible firearms = 3, range 1-160).

CONCLUSIONS

Approximately 14% of ERPO petitions for older adults involved cognitive impairment; one-third of these noted suicide risk. Studies examining ERPO implementation across states may inform usage and awareness.

CLINICAL IMPLICATIONS

ERPOs may reduce firearm access among older adults with cognitive impairment, suicidality, or risk of violence.

A narrative review: suicide and suicidal behaviour in older adults

Globally, suicide is a public health concern that claims the lives of many each year. The complex etiology and factors contributing to the risk of suicide make it hard to predict the likelihood of death by suicide. Suicide rates have been increasing over the past 25 years in patients aged 65 years and older, and with the expected increases in the size of the older adult population and the under-detection of suicide risk, these rates may continue to increase. To mitigate and attempt to limit this expected increase, it is important to understand the risk and protective factors of suicide in older adults. This narrative review focuses on individuals above the age of 65 and encompasses relevant peer-reviewed publications from the past 25 years to cover fatal and non-fatal suicidal behaviour. It summarizes several important risk factors for suicide and suicidal behaviors while considering how risk can be detected, assessed, prevented, and mitigated. Screening methods to detect suicide and depression in older adults were examined based on their effectiveness and suitability for use in this population. Lastly, the impacts of the COVID-19 pandemic on suicide rates in older adults were described.

Determinants of suicidal behavior in dementia: A Swedish national register-based study

OBJECTIVES

To examine predictors of suicidal behavior (SB) in adults aged 75 years and above with dementia.

DESIGN

Longitudinal national register-based study.

PARTICIPANTS AND SETTING

Swedish residents aged ≥75 years with dementia identified in the Swedish Dementia Registry (SveDem) between 1 January 2007 and 31 December 2017 (N = 59 042) and followed until 31 December 2018. Data were linked with numerous national registers using personal identity numbers.

MEASUREMENTS

Outcomes were nonfatal self-harm and suicide. Fine and Gray regression models were used to investigate demographics, comorbidities, and psychoactive medications associated with fatal and nonfatal SB.

RESULTS

Suicidal behavior was observed in 160 persons after dementia diagnosis; 29 of these died by suicide. Adjusted sub-hazard ratio (aSHRs) for SB was increased in those who had a previous episode of self-harm (aSHR = 14.42; 95% confidence interval [CI] = 7.06-29.46), those with serious depression (aSHR = 4.33, 95%CI = 2.94-6.4), and in those born outside Sweden (aSHR = 1.53; 95% CI = 1.03-2.27). Use of hypnotics or anxiolytics was also associated with a higher risk of SB; use of antidepressants was not. Milder dementia and higher frailty score also increased risk of SB. Risk was decreased in those who received home care (aSHR = 0.52; 95%CI = 0.38-0.71) and in the oldest group (aSHR = 0.35; 95%CI = 0.25-0.49).

CONCLUSION

In addition to established targets for suicidal behavior prevention (improved identification and treatment of depression and previous self-harm), several new risk factors were suggested. There is a need for innovative public health strategies to meet the needs of older dementia patients with a foreign background. Home care may have a potential positive effect to prevent SB in people with dementia, but this needs to be further explored.

[Suicide prevention in old age : Importance of depressive disorders and implications for the discussion on assisted suicide]

This article gives an overview of possibilities for suicide prevention in old age, with an emphasis on depression. A broad range of approaches are available, which are described differentiated into universal, selective and indicated strategies. In Germany the working group "Old people" of the National Suicide Prevention Program (NaSPro) has worked out these strategies in a differentiated way and with respect to the international discussions. The influence of the debate on assisted suicide and the influence of cognitive changes on suicidal ideation in old age are discussed. A further large need for concrete measures and also the presence of large gaps in the care structures are determined.

Similarities and differences in the prevalence and risk factors of suicidal behavior between caregivers and people with dementia: a systematic review

BACKGROUND

People with dementia and their caregivers are prone to suicidal behaviors due to difficulty adjusting to their initial caregiving role and due to emotional disturbances resulting from deterioration of functioning. The present systematic review (1) explored the prevalence of and risk factors for suicidal behavior and (2) assessed the similarities and differences in the prevalence and risk factors for suicidal behavior between people with dementia and their caregivers.

METHODS

A comprehensive literature search for research articles published between 1950 and 2023 was carried out using major databases, such as Google Scholar, Web of Science, PubMed, Scopus, PsycINFO, EMBASE, the Cochrane Library, and Medline.

RESULTS

A total of 40 research articles were selected for review. A total of 12 research articles revealed that the prevalence of suicidal behavior among caregivers ranged from 4.7% to 26%. However, the risk of suicidal behavior among people with dementia was inconsistent, as only 17 out of 28 selected studies reported the risk of suicidal behavior among people with dementia. The risk factors associated with suicidal behavior among caregivers of people with dementia could be both self-related and care receiver-related factors, whereas risk factors in people with dementia were self-related factors. Notably, greater cognitive decline, which impairs individuals' ability to carry out complex acts and planning, may lower their suicidal risk. Finally, assessment of the risk of bias indicated that 95% of the selected studies had unclear risk.

CONCLUSION

Self-related and care receiver-related factors should be assessed among caregivers of people with dementia to evaluate the risk of suicidal behavior. In addition, we recommend evaluating suicidal risk in people with dementia in the early phase of dementia when cognitive decline is less severe. However, as the majority of the selected studies had unclear risk of bias, future studies with improved methodologies are warranted to confirm our study findings.

Suicides in degenerative neurocognitive disorders and traumatic brain injuries

BACKGROUND

Neuropsychiatric symptoms in major neurocognitive disorders have been strongly associated with suicidality.

METHODS

The objectives were to explore suicide rates in degenerative neurocognitive disorders (DNDs), alcohol-related neurocognitive disorders (ARNDs), and traumatic brain injuries (TBIs). Patients who received these diagnoses between 1998 and 2015 (N = 231,817) were identified from nationwide registers, and their mortality was followed up until December 31, 2018. We calculated incidences of suicides per 100,000 person-years, types of suicides, and suicide rates compared with the general population (standardized mortality ratio [SMR]).

RESULTS

During the follow-up, 0.3% (95% confidence interval [95% CI]: 0.2-0.5) of patients with DNDs, 1.1% (0.7-1.8) with ARNDs, and 1.0% (0.7-1.3) with TBIs committed suicide. Suicide mortality rate was higher in men (58.9, 51.3, to 67.4 per 100,000) than in women (9.8, 7.5, to 12.5 per 100,000). The highest suicide rate was in ARNDs (98.8, 65.1, to 143.8 per 100,000), followed by TBIs (82.0, 62.4, to 105.8 per 100,000), and DNDs (21.2, 18.3, to 24.5 per 100,000). The SMRs (95% CI) were 3.69 (2.53-5.38), 2.99 (2.31-3.86), and 1.31 (1.13-1.51), respectively, and no sex difference emerged. The most common cause of death was self-inflicted injury by hanging or drowning (12.4, 10.3, to 14.8 per 100,000).

CONCLUSIONS

Suicide rates were higher in all three patient groups than the general population. Suicide risk remained elevated for more than 10 years after diagnosis. The suicide methods were mostly violent.

What Impact Does the Diagnosis of Mild Cognitive Impairment Have on the Wellbeing, Everyday Behavior, and Healthcare Utilization of People and Their Carers? A Systematic Review

Background

Dementia is a major cause of disability and dependency globally. Mild cognitive impairment (MCI) is considered an early indicator of developing dementia. There are growing efforts to detect and diagnose MCI earlier; consequently, we need to understand the perspectives of individuals and carers regarding the implications of an MCI diagnosis.

Objective

To systematically review qualitative literature to understand the impact of a MCI diagnosis on both the individual and their carers, focusing on wellbeing, everyday behaviors, and healthcare utilization.

Methods

Key search terms were input into five databases. Studies were included if they were peer-reviewed qualitative research published in English that obtained perspectives of community-dwellers with MCI or carers and focused on either their wellbeing, everyday behaviors and/or healthcare utilization. The protocol was pre-registered on PROSPERO (CRD42021291995). Data was synthesized narratively.

Results

Key findings from 15 eligible articles highlighted the negative impact of an MCI diagnosis on the wellbeing of both individuals and carers, due to stigma and limited understanding regarding diagnosis/prognosis. Changes in everyday behavior varied, particularly regarding motivation to engage with physical activity, hobbies and social opportunities. Both individuals and carers were sometimes dissatisfied with healthcare services; ineffective communication during clinical consolations highlighted as a reason for lack of trust in clinicians.

Conclusions

Results indicate that an MCI diagnosis impacts both people with MCI and their carers across key facets of life. There is a critical need to effectively communicate the diagnosis and prognosis of MCI to support wellbeing and everyday activities and ensure trust in healthcare services.

Alzheimer's Disease and Suicide: An Integrative Literature Review

INTRODUCTION

Suicide has been described in patients with Alzheimer's disease. Some promising medications for treating Alzheimer's disease have had their studies suspended because they increase the risk of suicide. Understanding the correlations between suicide and Alzheimer's disease is essential in an aging world.

METHODS

A search was carried out on electronic websites (PubMed and Scielo) using the MeSH Terms "suicide" and "Alzheimer" (1986-2023). Of a total of 115 articles, 26 were included in this review.

RESULTS

Depression and the allele ε4 of Apolipoprotein (APOE4) were demonstrated to be the main risk factors for suicide in patients with Alzheimer's disease.

CONCLUSION

Adequately delineating which elderly people are vulnerable to suicide is important so that new treatments for Alzheimer's disease can be successful. This review showed a need for new studies to investigate the interface between Alzheimer's disease and suicide.

A Prescription for Wellness in Early PD: Just What the Doctor Ordered

BACKGROUND

Being diagnosed with a neurodegenerative disease is a life-changing event and a critical time to help patients cope and move forward in a proactive way. Historically, the main focus of Parkinson's disease (PD) treatment has been on the motor features with limited attention given to non-motor and mental health sequelae, which have the most impact on quality of life. Although depression and anxiety have been described at the time of PD diagnosis, demoralization, intolerance of uncertainty, decreased self-efficacy, stigma and loneliness can also present and have negative effects on the trajectory of the disease. Hence, understanding the psychological impact of the diagnosis and how to provide better counselling at this critical time point may be the key to a better long-term trajectory and quality of life.

FOCUS

There has been a paradigm shift in the treatment of chronic illness moving beyond the medical model, which focuses on fighting illness with the physician being in charge of the treatment process and the patient being the passive recipient, toward a more holistic (i.e., physical, psychological, social, and spiritual health) biopsychosocial approach that emphasizes behavioral factors with the patient being an active collaborator in their treatment. Hence, we propose that fostering resilience, social support, and psychological flexibility offer promise toward attenuating negative reactions and improving overall well-being.

CONCLUSION

Through a proactive wellness approach incorporating lifestyle choices, people with PD (PwP) can not only achieve improved states of health, well-being, and quality of life, but actually thrive.

Factors associated with depression and suicidal ideation among oldest-old adults aged 85 years or older based on gender, using the survey data of South Korea

BACKGROUND

South Korea is predicted to become a superaged society around 2025. Depression in older adults is a major factor influencing suicide. South Korea exhibits the highest suicide rate among the Organization for Economic Co-operation and Development countries.

METHODS

This study aimed to examine the factors associated with depression and suicidal ideation among individuals aged 85 years or older based on gender. Data were obtained from the Korea Institute for Health and Social Affairs, 2017. Overall, 768 individuals aged ≥85 years were included in the final analysis. The participants' general, health-related, and social characteristics were analyzed as factors influencing depression and suicidal ideation.

RESULTS

Among male oldest-old adults, living arrangements and the number of chronic diseases were factors affecting depression, while activities of daily living restrictions and the number of chronic diseases were factors affecting suicidal ideation. Among female oldest-old adults, only the number of chronic diseases affected depression, while financial status and the number of chronic diseases were the factors affecting suicidal ideation.

CONCLUSIONS

The healthcare and welfare services for older adults must be expanded to cater to oldest-old adults who live alone, have activities of daily living restrictions, and have lower financial status. Additionally, the oldest age group's psychological health must be monitored regularly for depression and suicidal ideation to implement active interventions for this high-risk group.

Use of Psychoactive Medications and Risk of Suicide in Late Life (75+): A Total Population Study

BACKGROUND

Psychoactive medications play an important role for the mental health and risk of suicidal behaviour in the oldest segment of the population (75+). A better understanding of psychoactive medication use is advocated to prevent suicide in this age group.

PURPOSE

We investigated the risk of suicide associated with the use of psychoactive medications in the total population aged ≥ 75 years, with and without exposure to antidepressants.

METHOD

A national population-based register study, including all Swedish residents aged ≥ 75 years between 2006 and 2014 (N = 1,413,806). A nested case-control design was used to investigate psychoactive medications associated with suicide among users and non-users of antidepressants. Risk estimates were calculated in adjusted conditional logistic regression models for the entire cohort and by gender.

RESULTS

Suicide occurred in 1305 persons (907 men and 398 women). Among them, 555 (42.5%) were on an antidepressant at the time of suicide. Adjusted incidence rate ratio (aIRR) for suicide was increased in those who were on hypnotics in the total cohort (aIRR 2.05, 95% confidence interval 1.74 to 2.41), in both users and non-users of antidepressants and for both genders. Elevated suicide risk was observed in those who concomitantly used anxiolytics with antidepressants (1.51, 1.25 to 1.83). Decreased risk of suicide was observed among those who were on anti-dementia drugs, in the total cohort (0.33, 0.21 to 0.52) and in both users and non-users of antidepressants. Use of antipsychotics and mood stabilisers showed no effect on suicide risk.

CONCLUSION

Use of hypnotics and concomitant use of anxiolytics with antidepressants was associated with increased risk of late-life suicide. Our findings suggest the need for careful evaluation of the benefit-risk balance of psychoactive medications as well as their availability as a possible suicide means. Future research should consider the indication of use of the psychoactive medications and the severity of psychiatric and medical illnesses of the patients.

Anticipated suicidal and death ideation in response to an imagined dementia diagnosis: A qualitative study

Alzheimer's disease and related dementias are prevalent, highly impactful, and feared diagnoses. A mixed methods study using semi-structured interviews was conducted to clarify causes of dementia-related anxiety. Fifty community-dwelling adults aged 58 to 89 (M = 70.92, SD = 6.08) were recruited from a university participant registry and Memory Clinic; none had dementia diagnoses. Analyses revealed that 42% (n = 21) of participants anticipated suicidal or death ideation if diagnosed with dementia. Among participants endorsing anticipated suicidal or death ideation, responses ranged from active, specific plans, including interest in physician-assisted suicide, to more passive wishes to hasten death rather than continue to live with dementia. Within reports of both anticipated suicidal and death ideation, three subthemes emerged. Participants reported concerns about becoming a burden to others, the devaluation of life/loss of self with dementia, and the desire for (and anticipated thwarting of) personal control as factors contributing to their anticipated responses to a dementia diagnosis. Statements of anticipated suicidal and death ideation were contingent on a dementia diagnosis and may reflect errors in affective forecasting. Nevertheless, given the prevalence of dementias and older adults' elevated rates of suicide, the intersection of these two public health issues warrants greater attention.

Poisonings in Older People with Dementia: A Systematic Scoping Review and Meta-Analysis

BACKGROUND

Older people with dementia are at a particularly high risk of poisonings and their subsequent harms.

OBJECTIVE

This review aimed to describe the key agents, incidence, risk factors, and disposition of poisonings in people with dementia reported in the literature.

METHODS

Medline, Embase, CINAHL, and PsycINFO databases were searched from 1 September 2001 to 1 September 2021. Terms for dementia, poisonings, and older adults formed the search concepts. Quantitative studies published in English, describing poisonings in older people with dementia, including Alzheimer's disease, were included. Two investigators independently assessed articles for eligibility and extracted relevant data. A meta-analysis of the incidence of poisonings in people with dementia across studies was performed.

RESULTS

Of 4,579 articles, 18 were included for final synthesis. Nervous system medications were implicated in over half of all medicinal poisonings, with anti-dementia agents, benzodiazepines, and opioids the most common classes. The non-medicinal agents frequently associated with poisonings were personal care and household products. The yearly incidence of poisoning varied across definitions of poisoning from 3% for International Classification of Disease-defined poisonings to 43% for adverse drug event-defined poisonings. Several risk factors were identified, including multimorbidity, psychotropic medication use, and living in residential care. Where described, up to one in five poisonings resulted in hospitalisation and in death.

CONCLUSIONS

Poisonings are common in people with dementia, involving commonly prescribed medications or easily accessible substances. Given the significant outcomes associated, further research is required to better understand these poisonings and improve public health strategies to reduce the occurrence of this preventable harm.

Risk of Suicide After Dementia Diagnosis

Importance

Patients with dementia may be at an increased suicide risk. Identifying groups at greatest risk of suicide would support targeted risk reduction efforts by clinical dementia services.

Objectives

To examine the association between a dementia diagnosis and suicide risk in the general population and to identify high-risk subgroups.

Design, Setting, and Participants

This was a population-based case-control study in England conducted from January 1, 2001, through December 31, 2019. Data were obtained from multiple linked electronic records from primary care, secondary care, and the Office for National Statistics. Included participants were all patients 15 years or older and registered in the Office for National Statistics in England with a death coded as suicide or open verdict from 2001 to 2019. Up to 40 live control participants per suicide case were randomly matched on primary care practice and suicide date.

Exposures

Patients with codes referring to a dementia diagnosis were identified in primary care and secondary care databases.

Main Outcomes and Measures

Odds ratios (ORs) were estimated using conditional logistic regression and adjusted for sex and age at suicide/index date.

Results

From the total sample of 594 674 patients, 580 159 (97.6%) were controls (median [IQR] age at death, 81.6[72.0-88.4] years; 289 769 male patients [50.0%]), and 14 515 (2.4%) died by suicide (median [IQR] age at death, 47.4 [36.0-59.7] years; 10 850 male patients [74.8%]). Among those who died by suicide, 95 patients (1.9%) had a recorded dementia diagnosis (median [IQR] age at death, 79.5 [67.1-85.5] years; median [IQR] duration of follow-up, 2.3 [1.0-4.4] years). There was no overall significant association between a dementia diagnosis and suicide risk (adjusted OR, 1.05; 95% CI, 0.85-1.29). However, suicide risk was significantly increased in patients diagnosed with dementia before age 65 years (adjusted OR, 2.82; 95% CI, 1.84-4.33), in the first 3 months after diagnosis (adjusted OR, 2.47; 95% CI, 1.49-4.09), and in patients with dementia and psychiatric comorbidity (adjusted OR, 1.52; 95% CI, 1.21-1.93). In patients younger than 65 years and within 3 months of diagnosis, suicide risk was 6.69 times (95% CI, 1.49-30.12) higher than in patients without dementia.

Conclusions and Relevance

Diagnostic and management services for dementia, in both primary and secondary care settings, should target suicide risk assessment to the identified high-risk groups.

What distinguishes high and low-lethality suicide attempts in older adults? A systematic review and meta-analysis

Those making suicide attempts with highly lethal medical consequences are arguably the best proxy for those who die by suicide and represent a qualitatively different population from those making lower lethality attempts. Different factors influence the likelihood of a suicide attempt occurring and the lethality of that attempt. Both are important dimensions of risk. Older adults represent a distinct group in suicide research with unique risk factors that influence the lethality of their suicide attempts. This systematic review and meta-analysis summarises factors distinguishing those making high and low-lethality suicide attempts in older adulthood. Databases PsycINFO, PubMed (MEDLINE), Embase and CINAHL were systematically searched with seven of 1182 unique records included. Random effects meta-analyses were conducted on 18 variables in addition to a narrative synthesis regarding executive function. Only increased suicidal intent and planning meaningfully distinguished high from low-lethality attempters in meta-analyses. A large effect size was additionally observed for white ethnicity. Diminished alcohol use disorder prevalence and depression severity, and greater cognitive impairment, may be associated with high lethality attempters but further research is needed. Age and gender were not associated with lethality, contrary to adult populations. A narrative synthesis of studies exploring differences in executive functioning suggested high-lethality attempters were less likely to impulsively act on suicidal urges, allowing them to better plan suicide attempts that are more lethal, and are less likely to alter suicidal plans. Key limitations were that meta-analyses were underpowered to detect small effect sizes, and samples were largely white and limited to the USA.

How Residing in a Long-Term Care Facility Affects Suicidal Risk in Patients With Dementia: A Systematic Review

This study aims to review the current literature regarding the association between suicide risk in patients aged 65 years or over with dementia residing in long-term care facilities (LTCs). We also evaluate the most common methods of suicide and protective versus risk factors of nursing home (NH) life on suicide behavior in patients with dementia. Following preferred reporting items for systematic reviews and Meta-Analyses (PRISMA) guidelines, we performed a systematic review of the relevant free full-text articles found in PubMed, Pub Psych, Cochrane library, and Science Direct up until April 4, 2022. Medical Subject Heading (MeSH) terms and keywords (nursing home, long-term care facility, suicide, self-injurious behavior, dementia), were used to search for full-text randomized clinical trials (RCTs), cross-sectional, case-control, cohort studies, systematic reviews, and studies published in the English language in the last 12 years, focused on human subjects 65 years and older were selected based on predefined eligibility criteria. The search yielded 57,909 articles, of which 12 studies met our inclusion criteria. The articles were subjected to quality appraisal by two reviewers. We used the Newcastle Ottawa scale (NOS) for quality assessment with a mean score of six for 12 observational studies used in this paper. Of the included reports, six were cross-sectional, five were cohort, and one was case-control. Four articles carefully examine the relationship between dementia and suicide, and all confirm the hypothesis that staying in LTCs reduces the risk of suicide in patients with dementia. However, the rest of the articles generally determine a higher risk of suicide in demented patients and describe male gender, non-Hispanic white race, younger age, newly diagnosed with dementia within one-year, mild dementia, comorbidities, depression, previous history of suicidal behavior, low social support and unstable family relationship as the risk factors of suicide in this population. In comparison, extended stay in NHs and other kinds of LTCs, severe dementia with impaired insight, older age, comorbid schizophrenia, physical disability with limitation and more difficulty preparing and executing a suicide plan, positive and robust social relationships, access to professional caregivers and high frequency of visits from relatives marked as the protective factors. Existing research on suicide risk in long-term care facility residents with dementia is limited. However, due to the increase in dementia rates that require people to reside in NHs and on the other hand, considering the multiple risk factors of suicide in the elderly living in such places, the need for a screening system for identifying people at suicide risk and performing preventive therapeutic and behavioral interventions is well felt.

Understanding Suicide Risk in People with Dementia and Family Caregivers in South Korea: A Systematic Review

Dementia-related suicide is not well known. This study aimed to understand the characteristics of suicide risk among people with dementia and dementia family caregivers in South Korea. According to a systematic review of PRISMA guidelines, six electronic databases were searched for research published from 2010 to 2021. Ten studies were included. Among the included studies on people with dementia, one study (25%) showed no increase in the death risk of suicide, while three studies (75%) revealed suicide risk. Furthermore, in the dementia family caregivers, one study (17%) reported suicides and five studies (83%) reported suicide ideation (SI). Early dementia and independence or partial dependence in activities of daily living and home-based care are related to suicide risk in people with dementia. Meanwhile, suicide risk in dementia family caregivers is related to care burden, dementia severity, and poor approaches to coping with the family member’s dementia. The studies reviewed, which demonstrate heterogenous methodologies, suggest that both people with dementia and dementia family caregivers face suicide risk. The results of the current study offer insights useful for the prevention and treatment of mental health issues in both groups.

Suicidal Ideation and Suicide-Attempt-Related Hospitalizations among People with Alzheimer’s Disease (AD) and AD-Related Dementias in the United States during 2016–2018

People living with Alzheimer’s disease (AD) and AD-related dementias (ADRDs) are at a higher risk of suicidal behaviors given intersecting risk factors. Previous studies generally only focused on AD, small clinical samples, or grouped all dementia subtypes together, limiting insights for other ADRD subtypes. The objective of this study was to generate evidence related to the relative burden of suicidal behaviors (suicidal ideation and suicide attempt) among people with AD and ADRDs. This retrospective cross-sectional study identified hospitalizations related to suicidal behaviors (suicidal ideation and suicide attempt) for patients with Alzheimer’s disease (AD) and AD-related dementias using ICD-10-CM codes from the Nationwide Readmissions Database (NRD). A logistic regression model was estimated to assess associations between AD/ADRD subtype and patient characteristics, and the risk for a suicidal-behavior-related hospitalization and modes of harm were reported. During 2016–2018, there were 12,538 hospitalizations related to suicidal behaviors for people with AD/ADRDs. The overall prevalence of suicidal-behavior-related hospitalizations was lowest for AD (0.8%) and highest for frontotemporal dementia (2.6%). Among hospitalizations for suicide attempts, the most common mode of harm was medications or drugs (89.2% of all attempts), followed by weapons (17.7%). We found that there was a difference in the frequency of suicidal-behavior-related hospitalizations among AD/ADRD hospitalized patients across dementia subtypes.

Suicide risk in first year after dementia diagnosis in older adults

INTRODUCTION

Receiving a diagnosis of Alzheimer's disease or related dementias (ADRD) can be a pivotal and stressful period. We examined the risk of suicide in the first year after ADRD diagnosis relative to the general geriatric population.

METHODS

We identified a national cohort of Medicare fee-for-service beneficiaries aged ≥ 65 years with newly diagnosed ADRD (n = 2,667,987) linked to the National Death Index.

RESULTS

The suicide rate for the ADRD cohort was 26.42 per 100,000 person-years. The overall standardized mortality ratio (SMR) for suicide was 1.53 (95% confidence interval [CI] = 1.42, 1.65) with the highest risk among adults aged 65 to 74 years (SMR = 3.40, 95% CI = 2.94, 3.86) and the first 90 days after ADRD diagnosis. Rural residence and recent mental health, substance use, or chronic pain conditions were associated with increased suicide risk.

DISCUSSION

Results highlight the importance of suicide risk screening and support at the time of newly diagnosed dementia, particularly for patients aged < 75 years.

Home-dwelling older adults' attitudes and perceptions of dementia: A Q-methodological study in South Korea

AIM

Older adult attitudes and perceptions of dementia can have a major impact on early diagnosis, efforts to prevent and appropriately treat it, as well as being a family burden. The aim of this study is to explore attitudes and perceptions of dementia of home-dwelling older adults using Q-methodology.

METHOD

A total of 42 adults, age 65 or over, who live in South Korea ranked 37 Q statements about their attitudes and perceptions of dementia into A Q sort table grid.

RESULTS

The following three distinct viewpoints were extracted: (1) it is my responsibility to prevent and to care about dementia (family-centered view); (2) there are no ways to treat dementia (despairing views); and (3) dementia is a national responsibility (nation-centered view).

CONCLUSION

Based on these results, central and local government and communities should work together with older adults to manage dementia and reflect these three viewpoints when developing systematic dementia management programs.

Reliability and Validity of the Cornell Scale for Depression in Dementia and Invariance Between Black Versus White Residents in Nursing Homes

OBJECTIVES

The purpose of this study was to expand on prior work testing invariance on several depression measures in community-based older adults and explore the psychometric properties and evidence of invariance between racial groups based on the Cornell Scale for Depression in Dementia.

DESIGN

This was a descriptive measurement study.

SETTING AND PARTICIPANTS

This was a secondary data analysis using baseline data from 2 studies: Testing the Implementation of the Evidence Integration Triangle for Behavioral and Psychological Symptoms Associated with Dementia and the study Testing the Impact of Function and Behavior Focused Care for Nursing Home Residents with Dementia. Combined, 67 nursing homes participated from 2 states and 889 residents were recruited. The mean age of the participants was 86.58 (SD 10.31) and most were women (72%) and White (70%).

METHODS

This was a descriptive study, and a Rasch analysis was done to establish reliability based on internal consistency and evidence of differential item functioning (DIF) across races. Validity was based on item fit and model testing with structural equation modeling to compare models between White and Black participants.

RESULTS

There was evidence of internal consistency (alpha coefficient of 0.98) and no significant evidence of DIF. The item related to suicide had a high logit and did not significantly load onto the measurement model for Black individuals. There was not a good spread of the items across the concept of depression. The model had a better fit with the items when used with White versus Black participants.

CONCLUSIONS AND IMPLICATIONS

The findings indicate that it would be helpful to add some additional items that reflect depressive symptoms among this population. Further, the findings serve as a reminder that this measure may be biased toward identification of symptoms of depression among White versus Black residents.

Suicide among Older Adults with Dementia: Effects of Korea's Long-Term Care Insurance System

South Korea recently expanded its coverage rate of long-term care insurance (LTCI) by adding a “dementia special grade” in 2014 to improve care service accessibility and extend health life for older adults with dementia. In this study, we propose a multifaceted policy to reduce the suicide risk among older adults with dementia by evaluating the effectiveness of using the long-term care services (LTCS). A sample of 62,282 older adults was selected from the “Older Adults Cohort DB” of the National Health Insurance Service. We conducted Kaplan–Meier and Cox regression to represent the yearly survival curve from 2002 to 2015 according to the individual characteristics. Difference-in-difference estimation was conducted to identify the effect of LTCS on suicide rates by using LTCS before and after 2014. The suicide risk of older adults using LTCS was about 0.256-times lower than those who did not use it (OR = 0.296, 95% CI = 0.183–0.478), whereas it increased after the expansion of the dementia grading (OR = 2.131, 95% CI = 1.061–4.280). To prevent the risk of suicide among older adults with dementia, not only did the mortality rate vary depending on the sex, activities of daily living (ADL), and type of caregiver at the individual level but appropriate national intervention and management, such as improving the accessibility of LTCS, are also needed.

Suicidal behaviour in older age: A systematic review of risk factors associated to suicide attempts and completed suicides

In older age, several observational studies investigated risk factors for suicide attempts/completed suicides; however, contrasting evidence came from population-based setting. In the present systematic review, we described through a narrative synthesis the significant associations existing among risk factors and suicide attempts/completed suicides in subjects aged >65 years. From the 39 population-based studies selected in six different databases until February 15, 2021, we analyzed the most frequent 28 risk factors for suicidal behaviour. The risk factors more associated to suicide attempts than other variables frequently related to suicidal behavior in older age were: depressive disorders, methods employed to self-harm (particularly poisoning), and psychotropic drug utilization followed by psychological factors and disability. Moreover, male sex, violent methods to self-harm, any psychiatric disorder (depression, anxiety and bipolar disorders), a poor medical condition, stressors/bereavement, and living alone appeared to be more significant for predicting completed suicides in late life. In older age, efforts for suicide prevention should be based on strategies to assess and treat psychiatric disorders along with psychological interventions, particularly in males.

Mental Disorders, Cognitive Impairment and the Risk of Suicide in Older Adults

More than 600 million people are aged 60 years and over are living in the world. The World Health Organization estimates that this number will double by 2025 to 2 billion older people. Suicide among people over the age of 60 is one of the most acute problems. The factors strongly associated with suicide are mentioned: physical illnesses, such as cancer, neurologic disorder, pain, liver disease, genital disorders, or rheumatoid disorders. Moreover, neurologic conditions, especially stroke, may affect decision-making processes, cognitive capacity, and language deficit. In addition to dementia, the most common mental disorders are mood and anxiety disorders. A common symptom of these disorders in the elderly is cognitive impairment. This study aimed to present the relationship between cognitive impairment due to dementia, mood disorders and anxiety, and an increased risk of suicide among older people. Dementia is a disease where the risk of suicide is significant. Many studies demonstrated that older adults with dementia had an increased risk of suicide death than those without dementia. Similar conclusions apply to prodromal dementia Depression is also a disease with a high risk of suicide. Many researchers found that a higher level of depression was associated with suicide attempts and suicide ideation. Bipolar disorder is the second entity in mood disorders with an increased risk of suicide among the elderly. Apart from suicidal thoughts, bipolar disorder is characterized by high mortality. In the group of anxiety disorders, the most significant risk of suicide occurs when depression is present. In turn, suicide thoughts are more common in social phobia than in other anxiety disorders. Suicide among the elderly is a serious public health problem. There is a positive correlation between mental disorders such as dementia, depression, bipolar disorder, or anxiety and the prevalence of suicide in the elderly. Therefore, the elderly should be comprehensively provided with psychiatric and psychological support.