Comparison of Suicide Risk by Mental Illness: a Retrospective Review of 14-Year Electronic Medical Records

Comparing suicide completion rates in bipolar I versus bipolar II disorder: A systematic review and meta-analysis

BACKGROUND

Bipolar disorder (BD) has a high disease burden and the highest mortality risk in BD comes from suicide. Bipolar disorder type II (BD-II) has been described as a milder form of bipolar disorder; however, extant literature is inconsistent with this description and instead describe illness burden and notably suicidality comparable to persons with bipolar I disorder (BD-I). Towards quantifying the hazard of BD-II, herein we aim via systematic review and meta-analysis to evaluate the rates of completed suicide in BD-I and BD-II.

METHOD

We conducted a literature search on PubMed, OVID (Embase, Medline) and PsychINFO databases from inception to June 30th, 2023, according to PRISMA guidelines. Articles were selected based on the predetermined eligibility criteria. A meta-analysis was performed, comparing the risk of completed suicide between individuals diagnosed with BD-I to BD-II.

RESULTS

Four out of eight studies reported higher suicide completion rates in persons living with BD-II when compared to persons living with BD-I; however, two of the studies reported non-significance. Two studies reported significantly higher suicide completion rates for BD-I than BD-II. The pooled odds ratio of BD-II suicide rates to BD-I was 1.00 [95 % CI = 0.75, 1.34].

LIMITATIONS

The overarching limitation is the small number of studies and heterogeneity of studies that report on suicide completion in BD-I and BD-II.

CONCLUSION

Our study underscores the severity of BD-II, with a risk for suicide not dissimilar from BD-I. The greater propensity to depression, comorbidity and rapid-cycling course reported in BD-II are contributing factors to the significant mortality hazard in BD-II.

Psychotropic Medications Promote Time-Dependent Reduction of Suicidal Ideation in Mood Disorder: A Prospective Cohort Study

BACKGROUND

Despite a plethora of research on the topic, there is still no solid evidence that pharmacological treatment actually reduces the risk of suicide in patients with mental illness. In this study, we aimed to assess the effect of psychotropic medications on suicidal ideation in patients with major depressive disorder (MDD) and bipolar disorder (BPD) in two age groups: less than 25 years and 25 years and older.

METHODS

We analyzed 312 patients with mood disorders with current suicidal thoughts or recent suicide attempts. We followed the participants from baseline for 6 months and assessed changes in suicidal ideation with Columbia-Suicide Severity Rating Scale (C-SSRS). The effect of psychotropic drug administration on suicidal ideation over time was analyzed using a linear mixed model.

RESULTS

In patients aged 25 years and older with mood disorders, suicidal ideation was more severe when using psychotropic drugs than when not using them. However, suicidal ideation decreased rapidly over time. The time-dependent reduction in suicidal ideation was accelerated when using antidepressants and sedatives/hypnotics in adult MDD, and when using mood stabilizers in adult BPD. However, this effect was not observed in participants aged less than 25 years.

CONCLUSION

Adequate psychotropic medication may reduce suicidal ideation in patients with mood disorders aged 25 years and older. Additional research on psychotropic drugs is needed to effectively reduce the risk of suicide among children and adolescents with mood disorders.

Suicide Probability Among Patients With Schizophrenia and Bipolar Disorder

PURPOSE

To evaluate the possibility of suicide and related factors among individuals with schizophrenia and bipolar disorder (BD).

METHOD

Data were collected for 270 individuals registered in a community mental health center using the Suicide Probability Scale (SPS). Subsequently, t test and multiple linear regression analyses were conducted on independent samples.

RESULTS

There was no statistically significant difference found between mean SPS scores of participants with schizophrenia and BD. However, hostility subscale mean scores of participants with schizophrenia were higher than those of participants with BD, and the difference was statistically significant. Sex, family history of mental illness, need for help with medication, suicidal ideation in the past 10 days, and number of suicide attempts were important predictors of suicide probability.

CONCLUSION

Individuals with schizophrenia and BD and in remission should be evaluated periodically for the possibility of suicide. [Journal of Psychosocial Nursing and Mental Health Services, 62(8), 37-45.].

Bing Neel Syndrome: A Rare Contributing Factor of Psychosis and Suicidality

ABSTRACT

Suicide rapidly increased in the United States by 30% from 2000 to 2020, accounting for more than 800,000 deaths ( Neurosci Res Program Bull . 1972; 10: 384-8). Studies have shown that there are a multitude of underlying issues, including mental illness, that elevate an individual's risk of dying by suicide ( CDC WONDER: Underlying cause of death, 1999-2019 . Atlanta, GA: US Department of Health and Human Services, CDC; 2020). Presented here is a case of Bing Neel syndrome (BNS) found in a 69-year-old man who died by suicide by jumping off a 135' bridge. His medical history was significant for traumatic brain injury, Waldenstrom macroglobulinemia (WM), major depressive disorder, suicidal ideation, and anxiety. Bing Neel syndrome is a rare central nervous system complication of WM. His wife reported an abrupt mental deterioration starting 5 years before his death, characterized by paranoia, depression, and insomnia. He had been a high-functioning university professor. His decline culminated with the loss of independence in his activities of daily living. At autopsy, it was found that he experienced blunt force injuries related to the fall, causing his death. A neuropathologic examination revealed a brisk and fulminant clonal CD20 + /immunoglobulin M+ lymphocytic infiltrate, involving all sampled regions of his brain, consistent with WM. This workup was critical to obtaining an accurate pathologic diagnosis of BNS and understanding his full clinical status before death. Although BNS was not the proximate cause of death, this diagnosis aided the death investigation as a causal factor in his suicidality and was vital to providing his family closure.

The Effect of Herbal Medicine on Suicidal Behavior: A Protocol for Systematic Review and Meta-Analysis

Suicide is an important social and medical problem worldwide, including in countries that use traditional East Asian medicine (TEAM). Herbal medicine (HM) has been reported to be effective against several suicide-related conditions. This systematic review aimed to investigate the efficacy and safety of HM in reducing suicidal behavior including suicidal ideation, attempts, or completed suicide. We conduct a comprehensive search in 15 electronic bibliographic databases from inception to September 2022. All types of prospective clinical studies-including randomized controlled clinical trials (RCTs)-involving HM without or with routine care are included. The primary outcomes of this review are validated measures of suicidal ideation including the Beck scale for suicidal ideation. The revised Cochrane's risk of bias tool and other tools including the ROBANS-II tool are used to assess the methodological quality of RCTs and non-RCTs, respectively. A meta-analysis is performed using RevMan 5.4 in cases of homogeneous data from controlled studies. The results of the systematic review provide high-quality evidence to determine the efficacy and safety of HM for suicidal behavior. Our findings are informative for clinicians, policymakers, and researchers, aimed at reducing suicide rates, especially in countries that use TEAM.

Association between Self-Stigma and Suicide Risk in Individuals with Schizophrenia: Moderating Effects of Self-Esteem and Perceived Support from Friends

This cross-sectional study assessed the moderating effects of self-esteem and perceived support from friends on the association between self-stigma and suicide risk in individuals with schizophrenia. We included 300 participants (267 with schizophrenia and 33 with schizoaffective disorder). Suicide risk was assessed using items adopted from the suicide module of the Mini-International Neuropsychiatric Interview; self-stigma was assessed using the Self-Stigma Scale-Short; perceived support from friends was assessed using the Friend Adaptation, Partnership, Growth, Affection, and Resolve Index; and self-esteem was assessed using the Rosenberg Self-Esteem Scale. A moderation analysis was performed to examine the moderating effects of self-esteem and perceived support from friends on the association between self-stigma and suicide risk. The results indicated that self-stigma was positively associated with suicide risk after the effects of other factors were controlled for. Both perceived support from friends and self-esteem significantly reduced the magnitude of suicide risk in participants with self-stigma. Our findings highlight the value of interventions geared toward ameliorating self-stigma and enhancing self-esteem in order to reduce suicide risk in individuals with schizophrenia.

Discordance between family report and clinical assessment of suicide attempts: a prospective study from the emergency department

Background

Developing accurate identification methods for individuals with suicide attempts and providing them with follow-up care and supports can be a vital component of all comprehensive suicide prevention strategies. However, because of the difficulties concerning one’s intentions behind injurious behaviour, identifying suicide attempts is a challenge for families and clinicians.

Aims

The aim of this study was to investigate the differences between family report and clinical assessment for suicide attempts in the emergency department (ED).

Methods

A total of 148 patients with suspected suicide attempts (SSAs) and 148 family caregivers in the ED were enrolled. The suicide risk module of the Chinese version of the MINI International Neuropsychiatric Interview and the self-report measure were used to assess those with SSA’s suicidal behaviours. The Family Adaptability and Cohesion Evaluation Scales and semi-structured interviews were used to investigate the characteristics of suicide risk and demographics of patients with SSA, as well as the rate and influencing factors of omitted suicide attempts reported by family caregivers.

Results

The underreporting rate for family reported suicide attempts in the ED was 69.0%. The suicide attempts group indicated lower mean scores on perceptions of family resources, adaptability and cohesion. Patients' suicide risk rating (OR=0.152, 95% CI: 0.037 to 0.620, p=0.009), adult-children relationship (OR=5.037, 95% CI: 1.478 to 17.167, p=0.010) and caregiver’s age (OR=0.279, 95% CI: 0.103 to 0.757, p=0.012) might be associated with underreporting by families. If patients committed suicide attempts through a falling injury or medication overdose, their families may have misreported the suicide attempt.

Conclusions

The discordance of suicide attempt records between family report and clinical assessment reveals the limitations of family self-reports when identifying suicide attempts. Interviews and observations, together with information from certain diagnoses, should be combined to accurately identify suicide attempters in the ED.

Association of the COVID-19 Pandemic and Low-rescue Suicide Attempts in Patients Visiting the Emergency Department after Attempting Suicide

BACKGROUND

The coronavirus disease 2019 (COVID-19) pandemic may increase the total number of suicide attempts and the proportion of low-rescue attempts. We investigated the factors affecting low-rescue suicide attempts using the risk-rescue rating scale (RRRS) among patients who visited the emergency department (ED) after attempting suicide before or during the COVID-19 pandemic.

METHODS

We retrospectively investigated suicide attempts made by patients who visited our ED from March 2019 to September 2020. Patients were classified into two groups based on whether they attempted suicide before or during the COVID-19 pandemic. Data on demographic variables, psychiatric factors, suicide risk factors and rescue factors were collected and compared.

RESULTS

A total of 518 patients were included in the study, 275 (53.1%) of whom attempted suicide during the COVID-19 pandemic. The proportion of patients who made low-rescue suicide attempts differed before and during the COVID-19 pandemic (37.1% vs. 28.8%) (P = 0.046). However, the proportions of patients who made high-risk suicide attempts and high-lethality suicide attempts did not significantly differ between the two periods. The independent risk factors for low-rescue suicide attempts were age and the COVID-19 pandemic (odds ratio [OR], 1.02; 95% confidence interval [CI], 1.00-1.03; P = 0.006) (OR, 1.52; 95% CI, 1.03-2.25; P = 0.034).

CONCLUSION

The COVID-19 pandemic was associated with low-rescue suicide attempts in patients visiting the ED after attempting suicide. Thus, we need to consider the implementation of measures to prevent low-rescue suicide attempts during similar infectious disease crises.