A comparison of suicides in psychiatric in-patients, after discharge and in not recently hospitalized individuals

Predictors of inpatient suicide in an Irish psychiatric service, a longitudinal case-control study

OBJECTIVE

Inpatient suicide remains difficult to predict. This study aimed to identify individual patient predictors to help identify those at greater risk.

METHODS

This case-control study was undertaken in an independent mental health service in Ireland. Cases were drawn from all admissions to the service between March 2004 and February 2019. Controls were matched for date of admission. Univariate and multivariate analyses were conducted.

RESULTS

Thirty-three cases of inpatient suicide were compared to 132 controls. The inpatient suicide rate was 76.2 per 100,000 admissions. The rate of inpatient suicide fell in line with national rates despite less restrictive practices being implemented in the service. Males accounted for 66% of cases. Hanging was the most common method of suicide overall and among male patients, and drowning was the most common among females. Male gender, tertiary referral, an adverse psychosocial event during admission, a period of absence without leave and expressing hopelessness were identified as independent risk factors for inpatient suicide. Substance use, involuntary detention, family history of suicide, and number of previous admissions were not significant.

CONCLUSIONS

While not highly sensitive, a period of absence without leave, tertiary referral and hopelessness are important predictors of inpatient suicide risk that treating teams should consider in care planning.

A History of Suicide Attempt Is Associated with Increased Sympathetic Activation in Bipolar Disorder

OBJECTIVE

Suicide risk in bipolar disorder (BD) is estimated to be up to 20 times higher than in the general population. While there is a large body of evidence suggesting that increased sympathetic activation is associated with disease and death, there is a paucity of research on the role of autonomic nervous system (ANS) dysfunction in patients with BD who have attempted suicide.

METHODS

Fifty-three participants with BD used a wearable device to assess the association between history of suicide attempt, current suicidal ideation, and ANS dysfunction, including measures of heart rate variability (HRV) and respiratory rate. Data were analyzed in a series of unadjusted and adjusted bivariate models of association controlling for relevant variables.

RESULTS

A history of suicide attempts was significantly associated with an increase in respiratory rate (p < 0.01). These results remained significant after adjusting for age, BMI, and current mood state. There was no association between current suicidal ideation and heart rate or respiratory rate. In the frequency domain, HRV parameters suggest reduced parasympathetic (i.e., vagal) activity in participants with a history of suicide attempts and in those with current suicidality, suggesting changes in sympathicovagal balance in BD.

CONCLUSIONS

Our results suggest that changes in the ANS in patients with BD and a history of suicide attempt are not restricted to pure vagally mediated HRV parameters, but rather signal a general ANS dysregulation. This ANS imbalance may be contributing to illness burden and cardiovascular disease. Further research on the relationship between ANS and suicidality in BD is needed.

Preventing post-discharge suicides in psychiatric patients: insights from patients, lay healthcare supporters, and mental health professionals-a qualitative analysis

BACKGROUND

Discharged psychiatric patients are at higher risk of suicide due to various risk factors in their lives compared to the general population. However, specific problems and needs of these patients after discharge remain unclear. This research constitutes a segment of a broader implementation study designed to formulate an interventional strategy targeting post-discharge suicide among Chinese psychiatric patients. The present study seeks to qualitatively investigate the problems and needs from the perspectives of patients, their lay healthcare supporters (LHSs), and mental health professionals (MPs), aiming to enhance the efficacy of the interventional strategy.

METHODS

This study is part of a larger implementation study based on Shenzhen Kangning Hospital (SKH) in Shenzhen, Guangdong, China. Under the community-based participatory research framework, we recruited discharged psychiatric patients, their LHSs, and MPs as a collaborative community team, and we conducted individual in-depth interviews for patients and LSHs and focus group interviews with MPs. We utilized a thematic analysis approach to identify sub-themes and themes from interviews through systematically coding and analyzing the data.

RESULTS

A total of 45 participants were recruited for interviews, comprising 17 patients, 8 LHSs, and 20 MPs. We conducted 25 individual in-depth interviews and 3 focus group interviews. Through the interviews, we identified three themes of post-discharge problems: problems related to self, family-related problems, societal and community-related problems. We also identified four themes related to reducing post-discharge suicide: proactive self-management, multifunctional relatives, multifunctional MP group, and a warm society. The tangible support from LHSs and emotional support from MPs are strongly emphasized. Follow-up interventions were identified as the most significant way to addressing these unmet needs. Instrumental support from the community and a caring and non-discriminatory environment for individuals with mental disorders are essential for reducing suicide risk.

CONCLUSIONS

Establishing an integrated mental health care service network that connects psychiatric patients, LHSs, and MPs cross community and societal sectors, with patient-centered follow-up care at its core, is a practical approach to better address patients' needs and reduce post-discharge suicide.

TRIAL REGISTRATION

Registration number: NCT04907669. Date of registration: May 26th,2021.

Apps and gaps in bipolar disorder: A systematic review on electronic monitoring for episode prediction

BACKGROUND

Long-term clinical monitoring in bipolar disorder (BD) is an important therapeutic tool. The availability of smartphones and wearables has sparked the development of automated applications to remotely monitor patients. This systematic review focus on the current state of electronic (e-) monitoring for episode prediction in BD.

METHODS

We systematically reviewed the literature on e-monitoring for episode prediction in adult BD patients. The systematic review was done according to the guidelines for reporting of systematic reviews and meta-analyses (PRISMA) and was registered in PROSPERO on April 29, 2020 (CRD42020155795). We conducted a search of Web of Science, MEDLINE, EMBASE, and PsycINFO (all 2000-2020) databases. We identified and extracted data from 17 published reports on 15 relevant studies.

RESULTS

Studies were heterogeneous and most had substantial methodological and technical limitations. Models varied widely in their performance. Published metrics were too heterogeneous to lend themselves to a meta-analysis. Four studies reported sensitivity (range: 0.21 - 0.95); and two reported specificity for prediction of mood episodes (range: 0.36 - 0.99). Two studies reported accuracy (range: 0.64 - 0.88) and four reported area under the curve (AUC; range: 0.52-0.95). Overall, models were better in predicting manic or hypomanic episodes, but their performance depended on feature type.

LIMITATIONS

Our conclusions are tempered by the lack of appropriate information impeding our ability to synthesize the available evidence.

CONCLUSIONS

Given the clinical variability in BD, predicting mood episodes remains a challenging task. Emerging e-monitoring technology for episode prediction in BD requires more development before it can be adopted clinically.

Risk of suicide after discharge from inpatient psychiatric care: a systematic review

OBJECTIVE

The period following discharge from inpatient psychiatric care is recognised as an especially high-risk time for patient suicide. Astonishingly, there is a dearth of comprehensive studies examining risk and protective factors in this specific population. The aim of this study was to establish the protective and risk factors for suicide in the first year post-discharge (PD) from psychiatric facilities and their utility in categorising patients as high or low risk in a meaningful way to benefit clinical care and improve patient outcomes.

METHODS

A methodical search of three databases (PubMed, EMBASE, and PsychINFO) was used to identify reports describing risk factors for suicide after psychiatric discharge.

RESULTS

Predominantly, male sex, a history of self-harm, a history of suicide attempts, admission with suicidal ideation or suicidal behaviour, and hopelessness were identified as being associated with death by suicide after discharge. Lithium appeared to be protective against suicide in the studies reviewed. Other variables examined showed mixed results.

CONCLUSIONS

The findings of this review suggest that significant suicide predictors both common and unique to those established for suicide in the general population exist and can be utilised in a clinically meaningful way, despite the difficulties inherent in studying this population.KEY POINTSThe risk of suicide after psychiatric hospitalisation is high.Factors that predict suicide after psychiatric hospitalisation overlap only partially with risk factors for suicide in general.Important risk factors for suicide in the post-discharge period include male sex, a history of self-harm, a history of suicide attempts, the presence of suicidal ideation during the admission, and hopelessness.The conclusions that can be drawn from the existing literature are limited by small study sizes, different study populations, and different follow-up periods; additional research in this domain is needed.

Suicidal Risk Following Hospital Discharge: A Review

LEARNING OBJECTIVES

After participating in this activity, learners should be better able to:• Evaluate risk of suicide and suicide attempts following psychiatric hospitalization• Assess the relationship between suicide attempts and completed suicides BACKGROUND: Suicidal risks among psychiatric patients appear to be especially high soon after hospitalization. Given the importance of such outcomes, and the lack of recent reviews of post-discharge suicide attempt risks, we evaluated reported findings on the risk of suicide and attempts following psychiatric hospitalization.

METHODS

With systematic, computerized searching, we identified 48 studies (1964-2017) involving 1,700,785 subjects. Follow-up was limited to ≥12 months after discharge from psychiatric hospitalization to avoid inflation of annualized rates due to shorter exposure times.

RESULTS

The overall observed pooled, annualized rate of completed suicide was 241 (confidence interval, 238-243) per 100,000 person-exposure years in 41 studies, and for attempts, 722 (698-746) in 13 studies. In six studies (64,848 subjects) reporting on both suicides and attempts, the ratio of annualized rates for attempts/completed suicides was 8.79 (6.63-12.0). Among all 48 studies, cumulative distribution of suicidal events included 26.4% (25.9-26.9) within the initial month, 40.8% (40.2-41.4) within 3 months, and 73.2% (72.7-73.7) within 12 months of discharge.

CONCLUSIONS

Among patients recently discharged from psychiatric hospitalization, rates of suicide deaths and attempts were far higher than in the general population or even in unselected clinical samples of comparable patients, with a strong inverse association with time post-discharge. Improved monitoring and care of patients discharged from psychiatric hospitalization are needed, ideally with detailed planning and implementation of aftercare prior to discharge.

Suicide in Psychiatric Inpatients- A Case-Control Study

Objective: Psychiatric inpatients constitute a population at considerably increased risk for suicide. Identifying those at imminent risk is still a challenging task for hospital staff. This retrospective case-control study focused on clinical risk factors related to the course of the hospital stay. Method: Inpatient suicide cases were identified by linking the Tyrol Suicide Register with the registers of three psychiatric hospitals in the state. Control subjects were patients who had also been hospitalized in the respective psychiatric unit but had not died by suicide. Matching variables included sex, age, hospital, diagnosis, and admission date. The study period comprised 7 years. Data were analyzed by the appropriate two-sample tests and by logistic regression. Results: A total of 30 inpatient suicide cases and 54 control patients were included. A number of factors differentiated cases from controls; after correction for multiple testing, the following retained significance: history of aborted suicide, history of attempted suicide, history of any suicidal behavior/threats, suicidal ideation continuing during hospitalization, no development of prospective plans, no improvement of mood during the hospital stay, and leaving ward without giving notice. Logistic regression identified the latter three variables and history of attempted suicide as highly significant predictors of inpatient suicide. Conclusions: Preventive measures during hospitalization include thorough assessment of suicidal features, an emphasis on the development of future perspectives, and a review of hospital regulations for patients who want to leave the ward.

Psychiatric Hospitalization after Emergency Treatment for Deliberate Self-Harm is Associated with Repeated Deliberate Self-Harm

The objective of this study was to evaluate whether treatment at a psychiatric hospital reduces the risk of repeating parasuicide. Participants were 4,483 parasuicide patients admitted to an emergency department between July 2003 and March 2012. We analyzed the effectiveness of psychiatric hospitalization in preventing repeated parasuicide. We adjusted for background factors using multivariate logistic regression. Effects of psychiatric hospitalization upon the likelihood of repeated parasuicide within 1 year varied by age (especially those aged <35 years), indicating that hospitalization was a significant risk factor. We must be mindful of the risk of repeated parasuicide following discharge in young patients and to provide them with ongoing outpatient care and multimodal support.

Reweighing the Ethical Tradeoffs in the Involuntary Hospitalization of Suicidal Patients

Suicide is the 10th leading cause of death in the United States and the second cause of death among those ages 15-24 years. The current standard of care for suicidality management often involves an involuntary hospitalization deemed necessary by the attending psychiatrist. The purpose of this article is to reexamine the ethical tradeoffs inherent in the current practice of involuntary psychiatric hospitalization for suicidal patients, calling attention to the often-neglected harms inherent in this practice and proposing a path for future research. With accumulating evidence of the harms inherent in civil commitment, we propose that the relative value of this intervention needs to be reevaluated and more efficacious alternatives researched. Three arguments are presented: (1) that inadequate attention has been given to the harms resulting from the use of coercion and the loss of autonomy, (2) that inadequate evidence exists that involuntary hospitalization is an effective method to reduce deaths by suicide, and (3) that some suicidal patients may benefit more from therapeutic interventions that maximize and support autonomy and personal responsibility. Considering this evidence, we argue for a policy that limits the coercive hospitalization of suicidal individuals to those who lack decision-making capacity.

Meta-analysis of suicide rates in the first week and the first month after psychiatric hospitalisation

OBJECTIVE

To assess the magnitude of suicide rates in the first week and first month postdischarge following psychiatric hospitalisation.

DESIGN

Meta-analysis of relevant English-language, peer-reviewed papers published in MEDLINE, PsycINFO or Embase between 01 January 1945 and 31 March 2017 and supplemented by hand searching and personal communication. A generalised linear effects model was fitted to the number of suicides, with a Poisson distribution, log link and log of person years as an offset. A random effects model was used to calculate the overall pooled rates and within subgroups in sensitivity analyses.

OUTCOME MEASURES

Suicides per 100 000 person years in the first week and the first month after discharge from psychiatric hospitalisation.

RESULTS

Thirty-four included papers comprised 29 studies that reported suicides in the first month postdischarge (3551 suicides during 222 546 patient years) and 24 studies that reported suicides in the first week postdischarge (1928 suicides during 60 880 patient years). The pooled estimate of the suicide rate in the first month postdischarge suicide was 2060 per 100 000 person years (95% CI=1300 to 3280, I2=90). The pooled estimate of the suicide rate in the first week postdischarge suicide was 2950 suicides per 100 000 person years (95% CI=1740 to 5000, I2=88). Eight studies that were included after personal communication had lower pooled rates of suicide than studies included after data extraction and there was evidence of publication bias towards papers reporting a higher rate of postdischarge suicide.

CONCLUSION

Acknowledging the presence of marked heterogeneity between studies and the likelihood of bias towards publication of studies reporting a higher postdischarge suicide rate, the first week and first month postdischarge following psychiatric hospitalisation are periods of extraordinary suicide risk. Short-term follow-up of discharged patients should be augmented with greater focus on safe transition from hospital to community care.

PROSPERO REGISTRATION NUMBER

PROSPERO registration CRD42016038169.

Suicide Rates After Discharge From Psychiatric Facilities: A Systematic Review and Meta-analysis

Importance

High rates of suicide after psychiatric hospitalization are reported in many studies, yet the magnitude of the increases and the factors underlying them remain unclear.

Objectives

To quantify the rates of suicide after discharge from psychiatric facilities and examine what moderates those rates.

Data Sources

English-language, peer-reviewed publications published from January 1, 1946, to May 1, 2016, were located using MEDLINE, PsychINFO, and EMBASE with the search terms ((suicid*).ti AND (hospital or discharg* OR inpatient or in-patient OR admit*).ab and ((mortality OR outcome* OR death*) AND (psych* OR mental*)).ti AND (admit* OR admis* or hospital* OR inpatient* OR in-patient* OR discharg*).ab. Hand searching was also done.

Study Selection

Studies reporting the number of suicides among patients discharged from psychiatric facilities and the number of exposed person-years and studies from which these data could be calculated.

Data Extraction and Synthesis

The meta-analysis adhered to Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) and Meta-analysis of Observational Studies in Epidemiology (MOOSE) guidelines. A random-effects model was used to calculate a pooled estimate of postdischarge suicides per 100 000 person-years.

Main Outcomes and Measures

The suicide rate after discharge from psychiatric facilities was the main outcome, and the association between the duration of follow-up and the year of the sampling were the main a priori moderators.

Results

A total of 100 studies reported 183 patient samples (50 samples of females, 49 of males, and 84 of mixed sex; 129 of adults or unspecified patients, 20 of adolescents, 19 of older patients, and 15 from long-term or forensic discharge facilities), including a total of 17 857 suicides during 4 725 445 person-years. The pooled estimate postdischarge suicide rate was 484 suicides per 100 000 person-years (95% CI, 422-555 suicides per 100 000 person-years; prediction interval, 89-2641), with high between-sample heterogeneity (I2 = 98%). The suicide rate was highest within 3 months after discharge (1132; 95% CI, 874-1467) and among patients admitted with suicidal ideas or behaviors (2078; 95% CI, 1512-2856). Pooled suicide rates per 100 000 patients-years were 654 for studies with follow-up periods of 3 months to 1 year, 494 for studies with follow-up periods of 1 to 5 years, 366 for studies with follow-up periods of 5 to 10 years, and 277 for studies with follow-up periods longer than 10 years. Suicide rates were higher among samples collected in the periods 1995-2004 (656; 95% CI, 518-831) and 2005-2016 (672; 95% CI, 428-1055) than in earlier samples.

Conclusions and Relevance

The immediate postdischarge period is a time of marked risk, but rates of suicide remain high for many years after discharge. Patients admitted because of suicidal ideas or behaviors and those in the first months after discharge should be a particular focus of concern. Previously admitted patients should be able to access long-term care and assistance.