Cancer Diagnosis and Suicide Mortality: A Systematic Review and Meta-Analysis

Breast cancer and suicide: A comprehensive systematic review and meta-analysis of suicidal behaviours mortality and risk factors among women with breast cancer

BACKGROUND

Suicidal behaviours, including ideation, attempts, and mortality, are significant yet often overlooked concerns among women with breast cancer. While the psychological burden of breast cancer has been studied, comprehensive data on the prevalence and risk factors of suicidal behaviours in this population remain limited.

OBJECTIVE

This systematic review and meta-analysis aim to assess the prevalence, incidence, and risk factors associated with suicidal behaviours among women with breast cancer.

METHODS

A literature search was conducted using Embase, MEDLINE, CINAHL, Web of Science, and Academic Search Complete for studies published up to June 2024. Search terms included 'breast cancer,' 'suicidal behaviour,' 'suicide ideation,' 'suicide attempts,' 'self-harm,' and 'self-injury.' Eligible studies included primary data on suicidal ideation, attempts, or completed suicides among women with breast cancer. Meta-analyses were performed using random-effects models, and heterogeneity was assessed with the I2 statistic.

RESULTS

Twenty studies comprising 3450,022 participants were included. The pooled prevalence of suicidal ideation was 10 % (95 % CI 0.01-0.63, p < 0.001), while suicide attempts were reported at 2 % (95 % CI 0.01-0.03, p < 0.001). Suicide mortality was observed in 0.001 % (95 % CI 0.001-0.002, p < 0.001). Younger age (18-45 years), advanced cancer stages (stage IV), and unmarried status were significant risk factors.

CONCLUSION

Suicidal behaviours are prevalent among women with breast cancer, particularly in younger, unmarried patients with advanced cancer stages. Comprehensive mental health support is crucial in reducing 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.

Suicide risk in prostate cancer patients: Trends, predictors, and development of predictive nomograms using SEER data

PURPOSE

To assess suicide risk in prostate cancer (PCa) patients by analyzing trends, key predictors, and developing predictive tools. Using the Surveillance, Epidemiology, and End Results (SEER) database data, we aimed to identify high-risk populations and guide strategies to reduce suicide-related mortality.

METHODS

A retrospective analysis was conducted using SEER data from 2010 to 2020. Standardized mortality ratios (SMRs) were calculated to compare suicide risk in PCa patients with that of the general male population, with subgroup analyses stratified by age and race. Proportional mortality ratios (PMRs) were determined for the leading causes of death, including suicide, across clinical and demographic variables. Predictive nomograms for 3-year and 5-year suicide risk were developed using Cox regression models and validated through calibration curves and concordance indices.

RESULTS

PCa patients exhibited elevated suicide SMRs, particularly among younger (<55 years, SMR = 8.50) and White patients (SMR = 14.98). While overall suicide risk declined over the study period, specific subgroups remained disproportionately affected. PMR analysis indicated younger age, White race, and earlier disease stages were associated with higher suicide proportions. Time-to-event analysis revealed that 20.28 % of suicide cases occurred within the first year after diagnosis. Predictive modeling identified age, race, radiotherapy, and marital status as independent risk factors for suicide mortality.

CONCLUSIONS

Suicide poses a significant yet preventable risk for PCa patients, especially among younger (especially<55 years), White, and unmarried individuals (both separated, divorced, and widowed and never married). The developed predictive tools can aid in identifying high-risk patients and implementing targeted psychosocial interventions.

Suicidal ideation, attempt and associated factors among adult cancer patients at Jimma University Medical Center, Jimma, Ethiopia, 2023

Background

Cancer has been associated with an increased risk of suicidal behaviors and suicide has been one of the leading causes of non-cancer-related mortality among cancer patients in recent years. However, there is limited evidence on suicidal behaviors in patients diagnosed with cancer at Jimma University Medical Center.

Objective

This study aimed to assess the magnitude and associated factors of suicidal ideation and attempts among cancer patients at Jimma University Medical Center, Ethiopia, in 2023.

Methods

A hospital-based cross-sectional study was conducted among 271 cancer patients at Jimma University Medical Center from 1 to 30 November 2023. Data were collected using interviewer-administered questionnaires and a consecutive sampling technique was employed. Suicidal ideation and attempts were assessed by the Composite International Diagnostic Interview Module. Logistic regression analysis was used to evaluate the significance of the association between the dependent and independent variables. Variables with a p-value <0.25 were candidates for the multivariable logistic regression so that predictors of suicidal ideation and attempt were identified at a p-value < 0.05, with a 95% confidence interval (CI), in the final model.

Results

This study reported that 24% and 10.7% of the patients with cancer had suicide ideation and attempted suicide in the previous 12 months, respectively. Being female [adjusted odds ratio (AOR) = 5.35; 95% CI, 2.48-11.54] and having anxiety (AOR = 4.09; 95% CI, 1.85-9.03), psychological distress (AOR = 4.19, 95% CI, 1.61-10.87), and stage IV cancer (AOR = 5.81, 95% CI, 1.73-19.51) were significantly associated with suicidal ideation while having depression [AOR = 3.25, 95% CI, 1.05- 10.06] and anxiety [AOR = 3.50, 95% CI, 1.19-10.32] were significantly associated with attempting suicide.

Conclusion

Nearly one-quarter and one-tenth of the patients with cancer had suicide ideation and attempted suicide in the previous 12 months, respectively. Being female, advanced cancer stage, anxiety, and psychological distress were statistically significantly associated with suicidal ideation. Anxiety and depression were statistically associated with attempting suicide. It is important that oncology professionals routinely perform patient suicidal risk assessment. Consultation services need to be strengthened with psychiatric professionals in cancer treatment centers.

The determinants of help-seeking behaviors among cancer patients in online health communities: Evidence from China

OBJECTIVE

Although online health communities offer a new approach to patient interaction, the help-seeking behaviors of cancer patients within these platforms remain unexplored. This study aims to identify the determinants influencing online help-seeking behaviors among cancer patients.

METHOD

Based on motivation theory, we proposed six hypotheses and developed a research model. Data were collected from 1100 cancer patients who sought help in a leading Chinese online cancer community in March, June, and September 2023. We used the fixed-effect negative binomial model to test research hypotheses.

RESULTS

The findings indicated that the time since diagnosis (β = -0.127, P < 0.001) was negatively associated with online help-seeking behaviors among cancer patients. In contrast, social support (β = 0.002, P = 0.003) and disease stigma (β = 0.170, P < 0.001) positively influenced their help-seeking behaviors in online health communities. Furthermore, while male and female cancer patients showed decreased help-seeking behaviors as time since diagnosis increased, the decline was less pronounced for females (β = 0.040, P < 0.001). The positive impact of disease stigma on help-seeking behaviors is stronger for female patients than male patients (β = 0.098, P < 0.001).

CONCLUSION

This research broadens the understanding of how cancer patients seek help in digital environments and enhances theoretical insights into these behaviors.

Practitioners' perspective: a mixed-methods study on dealing with suicidality from the perspective of oncological healthcare professionals

PURPOSE

Healthcare professionals (HCPs) play a critical role in suicide prevention and clinical guidelines recommend inquiring about suicidality as part of medical history and diagnosis. Emerging evidence indicates a lack of implementation of such policies in clinical practice. However, to date, no comprehensive mixed-methods study has examined this issue in the field of oncology.

METHODS

A preregistered mixed-methods study was conducted with oncological HCPs (N = 20) from various professions, using semi-structured interviews and validated questionnaires. Employing an explorative theory-generating approach, qualitative content analysis was applied to the interviews. The different data sources are integrated and contrasted. Comparisons according to sociodemographic variables (profession, age, and gender) and frequency distributions were used to examine the questionnaire data.

RESULTS

Most HCPs reported direct or indirect experiences with suicidality in cancer patients. Nineteen HCPs did not routinely explore suicidality, of whom five reported not inquiring about it at all. Those who explored suicidality were more confident, less emotionally overwhelmed and reported higher subjective knowledge. HCPs also differed regarding their endorsement of suicide myths.

CONCLUSION

The study highlights difficulties with active suicide exploration and differences among HCPs. Integrating these findings into education and training could improve HCPs' skills and reduce disparities, supporting successful suicide prevention.

Prostate Cancer and Suicide Risk: A Systematic Review and Meta-Analysis

PURPOSE

Suicide is a substantial public health concern, and there are a variety of contributing factors. Prostate cancer is known to be a disease at high risk of suicide regardless of country and age. Nonetheless, comprehensive information about associated risk levels and underlying determinants remains limited. To systematically evaluate the suicide risk in prostate cancer patients compared to control by systematic review and meta-analysis.

MATERIALS AND METHODS

PubMed, Embase, and the Cochrane Library were searched from the earliest available indexing date through May 2024. The criteria for selecting the subjects were as follows: (1) studies including patients who had prostate cancer, (2) intervention was not specified, (3) comparison was made with people without prostate cancer selected as the control group, and (4) outcomes were measured as standardized mortality ratio (SMR) or relative risk (RR), or hazard ratio (HR) of suicide in prostate cancer. Random-effects model were used to estimate pooled effect sizes. Meta-regression analyses were conducted to identify the potential moderator effects between prostate cancer and the risk of suicide.

RESULTS

A systematic review and meta-analysis of these 25 studies that included a total of 4,987,941 participants were performed. The pooled SMR for overall suicide risk in prostate cancer compared with control groups was 1.251 (95% confidence interval [95% CI]: 1.120-1.383). The pooled RR or HR was 1.712 (95% CI: 1.306-2.243). The suicide risk of prostate cancer patients showed statistically significant in all cases of SMR and RR or HR. The suicide risk was also significantly higher in most subgroup analyses according to age and research follow-up period.

CONCLUSIONS

The findings of this systematic review and meta-analysis support the association between prostate cancer and increased risk of suicidal tendencies. Follow-up for prostate cancer patients should be highly integrated with psychiatric and psychological care to improve the psychosocial function of patients.

Risk of Suicide Among Patients With Major Physical Disorders Considering Comorbidities of Mental Disorders: An Instrumental Variable Analysis

Suicide is an important health concern. Excepting cancer, the association between physical disorders and suicidal risk is comparatively less explored. Instrumental variable analysis has been suggested as a powerful technique to deal with possible bias caused by unmeasured confounders in observational research. This population-based study set out to assess the suicidal risk of patients with major physical disorders by employing the instrumental variable analysis. Data were retrieved from the National Health Insurance Research Database and the Death Certification Registry in Taiwan (years 2010-2018). The Cox proportional hazards model with an instrumental variable estimator was performed, adjusting for comorbidities of mental disorders and other covariates. Analytical results showed that compared to their counterparts, patients with major physical disorders had an elevated risk of death by suicide within one year and three years after diagnosis of physical illness. Only did epilepsy not demonstrate a statistically significant impact on the risk of suicide.

Analysis of the relationship between antineoplastic drugs and suicide-related adverse events based on the food and drug administration adverse event reporting system database

Background

The potential association between new antineoplastic drugs and an increased risk of suicide-related adverse drug reactions remains unclear. This study aims to utilize the FAERS public database to analyze suicide-related adverse drug reactions associated with common antitumor drugs and to investigate potential risk signals for such adverse drug reactions.

Methods

This study was a retrospective analysis utilizing the FAERS database. The FAERS database was examined for reports of suicide-related adverse events associated with antitumor drugs, spanning from 2004 to 2023. To identify and verify adverse event signals, we employed reporting odds ratios, proportional reporting ratios, and Bayesian methods (Bayesian Confidence Propagation Neural Network). Additionally, logistic regression analysis was performed to assess outcomes in tumor patients.

Results

A total of 223,781 suicide-related adverse event reports were screened, of which 3790 involved common antitumor drugs. The top five drugs reported were tretinoin (n = 1220), methotrexate (n = 664), celecoxib (n = 505), rituximab (n = 107), and imatinib (n = 105). Risk signal analysis indicated that, with the exception of tretinoin (ROR = 6.317), the reporting odds ratio values for the other drugs were below 2. Among cancer patients, the most frequently reported adverse events included suicidal ideation (n = 233), completed suicide (n = 131), and suicide attempts (n = 97). Regression analysis revealed that risk factors for patient death included indication (OR = 0.967, p < 0.01), gender (OR = 0.57, p < 0.01), and type of adverse event (OR = 4.644, p < 0.01).

Conclusion

The findings suggest that antineoplastic drugs may not statistically increase the risk of suicide-related adverse events. However, specific tumor types and suicide-related adverse events may contribute to increased mortality in cancer patients. Further research is warranted to elucidate the risk of suicide-related adverse events in oncology patients.

The role of ketamine and its enantiomer in managing depression and pain in cancer patients: A narrative review

Depression and pain are common comorbidities in cancer patients, and ketamine, a dissociative anesthetic, has shown potential in managing both. This review summarizes current literature on ketamine and its enantiomer, esketamine, in managing depression and pain in the oncologic population. Studies indicate that sub-anesthetic doses of intravenous ketamine and esketamine can alleviate postoperative depressive symptoms in cancer patients with a tolerable safety profile. Research into non-intravenous routes for depression management in the oncologic population remains limited. Ketamine has also proven effective in managing acute postoperative pain, particularly through intravenous administration. While alternative administration routes, such as local infiltration and intramuscular methods, show mixed results, they may provide viable options for patients averse to intravenous (IV). However, the effectiveness of ketamine for chronic cancer pain remains inconsistent. Overall, ketamine offers a promising approach for managing depression and pain in oncologic patients.

The effectiveness of solution-focused therapy in cancer-related symptom management: a systematic review

OBJECTIVE

Solution-focused therapy (SFT) as a psychoeducational support intervention has gained an increasing attention for alleviating complications associated with cancer. The aim of this review was to integrate and synthesize scientific evidence regarding the efficacy of SFT in the management of cancer-related symptoms.

METHODS

A systematic review was conducted, encompassing the exploration of five online databases-Web of Science, PubMed (including MEDLINE), CINAHL, Embase, and Scopus. Articles published from inception to December 2023 were retrieved. The review included all clinical trials and similar interventional studies assessing the impact of SFT on cancer-related symptoms. Relevant data were extracted from eligible studies following quality appraisals using appropriate methodological tools. The review results were presented in a narrative format due to the impossibility of conducting a meta-analysis.

RESULTS

A total of 239 studies were identified during the search process, of which eight articles met the inclusion criteria. The overall sample size comprised 555 patients with cancer that were mostly female (n = 386). Four studies employed randomized controlled trials (RCT), while the remaining four utilized the non-RCT method. SFT-based interventions demonstrated effectiveness in addressing stress, anxiety, depression, somatization, cancer-related fatigue, pain catastrophizing, and negative coping. Additionally, they improved psychological well-being, hope, positive coping, self-efficacy, quality of life, and sexual quality of life among cancer patients.

CONCLUSIONS

Various SFT-based interventions have been shown to be effective in managing cancer-related symptoms and can be considered valuable additions to routine care, complementing medication therapy and other therapeutic measures to alleviate patients' suffering associated with cancer. Systematic review registration number (PROSPERO): CRD42023413910.

The prevalence of anxiety symptoms/disorders in cancer patients: a meta-analysis

OBJECTIVE

Cancer can have negative effects on mental health. The aim of this study was to investigate the prevalence of anxiety symptoms/disorders in cancer patients' worldwide using meta-analysis.

METHODS

The study population was cancer patients who had cancer at the time of the study. The outcome studied in this study was anxiety symptoms/disorders. PubMed and Scopus were searched based on the syntax of keywords, this search was limited to articles published in English until September 2021. For this meta-analysis, data on the prevalence of anxiety were first extracted for each of the eligible studies. The random-effects method was used for the pool of all studies. Subgroup analysis was performed based on sex, anxiety disorders, cancer site, and continents. Heterogeneity in the studies was also assessed.

RESULT

After evaluating and screening the studies, eighty-four studies were included in the meta-analysis. Prevalence of anxiety symptoms/disorders in cancer patients showed that this prevalence is 23% (I2 = 99.59) in the 95% confidence interval between 22-25%. This prevalence was 20% (I 2 = 96.06%) in the 95% confidence interval between 15-24% in men and this prevalence is 31% (I 2 = 99.72%) in the 95% confidence interval between 28-34% in women. The highest prevalence of anxiety was in patients with ovarian, breast, and lung cancers.

DISCUSSION

It showed a high prevalence of anxiety symptoms/disorders in cancer patients, in addition to therapeutic interventions for cancer, the necessary interventions should be made on the anxiety of these patients. Methodological limitation was the heterogeneity between the studies included in the meta-analysis. Some types of cancer sites could not be studied because the number of studies was small or the site of cancer was not identified.

The Impact of Pain, Threat Perception and Emotional Distress on Suicide Risk in Individuals with Colorectal Cancer

BACKGROUND

Colorectal cancer (CRC) can significantly impact mental health, increasing suicide risk. Variables such as pain and threat perception may be crucial. This study aims to identify predictors of suicide risk in individuals with CRC.

METHODS

A total of 71 participants (76.06% men) aged 27 to 88 years (M = 65.18, SD = 12.02) were assessed using the SF-36 for pain, the Brief Illness Perception Questionnaire (B-IPQ) for threat perception, the Hospital Anxiety and Depression Scale (HADS) for emotional distress, and the Plutchik suicide risk scale for suicide risk. Descriptive, comparative, and correlational analyses were performed, followed by a linear regression analysis.

RESULTS

Nearly 20% of participants exhibited high suicide risk. There was a moderate-to-high association between suicide risk and the perception of threat, pain, and emotional distress. The linear regression model explained 39% of the variance in suicide risk, with threat perception, pain, and emotional distress as significant predictors.

CONCLUSIONS

These results indicate the need for multidisciplinary care for individuals with CRC, including emotional support from health psychologists, and holistic, human-centered care from nursing and medical professionals. Future research is necessary to further explore these relationships and improve patient care strategies.

Indirect effects of health-related quality of life on suicidal ideation through psychological distress among cancer patients

The interrelationships of suicidal ideation, psychological distress, and impaired health-related quality of life (HRQoL) in cancer patients are complex and multifaceted. Limited empirical evidence exists on the indirect effects of impaired HRQoL on suicidal ideation through psychological distress among cancer patients. To fill this research gap, 250 cancer patients were recruited through a cross-sectional hospital-based research design. Structural equation model (SEM) results indicated that impaired HRQoL is a predictor of psychological distress (β = 0.153; p < 0.05), and psychological distress positively predicts suicidal ideation (β = 0.647; p < 0.000). The study found no direct effects of impaired HRQoL on suicidal ideation (β = -0.05; p = 0.223). Indirect effects of HRQoL on suicidal ideation was confirmed, showing a full-mediation effect β = 0.099 (SE = 0.048, CI = [0.030, 0.189], p < 0.05) (i.e. the pathway impaired HRQoL predict suicidal ideation is through psychological distress). Cognitive-behavioral therapy and other emotional support programs should be considered for cancer patients to mitigate psychological vulnerabilities linking impaired HRQoL to suicidal ideation.

Suicide among lymphoma patients

BACKGROUND

Higher suicide rates were observed in patients diagnosed with lymphoma. In this study, we accurately identified patients with high-risk lymphoma for suicide by constructing a nomogram with a view to effective interventions and reducing the risk of suicide.

METHODS

235,806 patients diagnosed with lymphoma between 2000 and 2020 were picked from the Surveillance, Epidemiology, and End Results (SEER) database and randomly divided into training (N = 165,064) and validation set (N = 70,742). A combination of the Least absolute shrinkage and selection operator (LASSO) and Cox proportional hazards regression identified the predictors that constructed the nomogram. To assess the discrimination, calibration, clinical applicability, and generalization of this nomogram, we implemented receiver operating characteristic curves (ROC), calibration curves, decision curve analysis (DCA), and internal validation. The robustness of the results was assessed by the competing risks regression model.

RESULTS

Age at diagnosis, gender, ethnicity, marital status, stage, surgery, radiotherapy, and annual household income were key predictors of suicide in lymphoma patients. A nomogram was created to visualize the risk of suicide after a lymphoma diagnosis. The c-index for the training set was 0.773, and the validation set was 0.777. The calibration curve for the nomogram fitted well with the diagonal and the clinical decision curve indicated its clinical benefit.

LIMITATION

The effects of unmeasured and unnoticed biases and confounders were difficult to eliminate due to retrospective studies.

CONCLUSION

A convenient and reliable model has been constructed that will help to individualize and accurately quantify the risk of suicide in patients diagnosed with lymphoma.

A powerful safety net: Social support moderates the association of quality of life deficits with suicidal ideation in long-term childhood cancer survivors

OBJECTIVES

Cancer survivors are at risk for suicidality. We aimed to expand the knowledge about protective factors and their interplay with risk factors by testing social support as a modifier of the association of Quality of Life (QoL) deficits with suicidal ideation.

RESEARCH APPROACH

We surveyed N = 633 childhood cancer survivors (CCS) using validated questionnaires (EORTC Core Quality of Life questionnaire QLQ-C30, Patient Health Questionnaire PHQ-9). The interaction of QoL and social support was investigated using multiple linear regression analysis.

FINDINGS

CCS reporting suicide attempts and current suicidal ideation (SI) had lower QoL. CCS with SI reported less social support. QoL and social support were independently associated with SI and interacted: among CCS with less social support, low QoL was more strongly associated with SI.

CONCLUSION

The results highlight the need for interdisciplinary survivorship care, and to focus on risk and protective factors to strengthen suicide prevention.

Global Prevalence of Suicide in Patients With Cancer: A Systematic Review and Meta-Analysis

AIM

Given that patients with cancer may commit suicide due to physical and mental problems, the present study objectives were to identify particular risk factors of different subgroup of patients including type of cancer, gender, age, type and time of suicide, and geographical region to facilitate early care and psychosocial support.

METHODS

A comprehensive review of databases including Embase, Scopus, PubMed, and Web of Science was conducted for original articles published in English from January 2000 to March 2022. It is based on the PRISMA checklist.

RESULTS

After reviewing 69 articles selected from 15 countries, the total prevalence rate of suicide among 34,157,856 patients with cancer was estimated 67,169, at 0.013 (95% CI, 0.008-0.021). The highest suicide prevalence was related to gastrointestinal cancer, estimated at 0.204 (95% CI, 0.161-0.255). A gender-based meta-analysis showed that the prevalence of suicide/suicidal ideation was higher among men, estimated at 0.013 (95% CI, 0.008-0.023) compared with women, at 0.006 (95% CI, 0.002-0.017).

CONCLUSION

Based on study results, suicide-prevention strategies should be aimed at patients younger than 40 years of age to effectively resolve their mental health disorders and promote their self-efficacy in successful management of the disease.

Treatment trajectories of individuals diagnosed with rectal cancer: an interpretative phenomenological study

Rectal cancer affects almost every aspect of an individual's daily life. However, there are gaps in understanding the complete spectrum of experiences spanning from diagnosis to recovery. Therefore, the aim of this study was to explore the treatment trajectories of individuals diagnosed with rectal cancer. Adopting an interpretative phenomenological approach, seven participants were recruited using purposive sampling. Data were collected using semi-structured, in-depth interviews that were digitally recorded, transcribed and analysed using thematic analysis. Study rigour was established following the four-dimension criteria of credibility, dependability, transferability and confirmability. Four prominent themes emerged from the participants' experiences of undergoing rectal cancer treatment: uncovering the inner battles; navigating the physical challenges; anchors of support and conquering the summit. These findings contribute to knowledge and practice by highlighting the importance of providing a comprehensive and individualised treatment plan for individuals that takes account of the physical and psycho-emotional implications of rectal cancer treatment.

Suicidal ideation in Chinese patients with advanced breast cancer: a multi-center mediation model study

PURPOSE

The pathways underpinning suicide ideation (SI) and certain physical and psychological factors in patients with advanced breast cancer remain unclear. This study develops and validates a mediation model that delineates the associations between several multidimensional variables and SI in Chinese patients with advanced breast cancer.

METHODS

Patients with advanced breast cancer (n = 509) were recruited as study participants from 10 regional cancer centers across China from August 2019 to December 2020. Participants were required to complete five questionnaires using an electronic patient-reported outcomes (ePRO) system: 9 item- Patient Health Questionnaire (PHQ-9), Hospital Anxiety and Depression Scale (HADS), Insomnia Severity Index (ISI), 5-level EQ-5D (EQ-5D-5L), and MD Anderson Symptom Inventory (MDASI). Risk factors for SI were identified using multivariable logistic regression, and inputted into serial multiple mediation models to elucidate the pathways linking the risk factors to SI.

RESULTS

SI prevalence was 22.8% (116/509). After adjusting for covariates, depression (odds ratio [OR] = 1.384), emotional distress (OR = 1.107), upset (OR = 0.842), and forgetfulness (OR = 1.236) were identified as significant independent risk factors (all p < 0.05). The ORs indicate that depression and distress have the strongest associations with SI. Health status has a significant indirect effect (OR=-0.044, p = 0.005) and a strong total effect (OR=-0.485, p < 0.001) on SI, mediated by insomnia severity and emotional distress.

CONCLUSIONS

There is a high SI prevalence among Chinese patients with advanced breast cancer. Our analysis revealed predictive pathways from poor health to heightened SI, mediated by emotional distress and insomnia. Regular management of distress and insomnia can decrease suicide risk in this vulnerable population.

Trends in suicide mortality among cancer survivors in the US, 1975-2020

BACKGROUND

Suicide in cancer survivors is a major public health concern, but its trends and risk factors are not well understood. This study aimed to investigate the standardized mortality rate (SMR) and trends in suicide among cancer survivors in the United States.

METHODS

Using data from the SEER-9 database and US Mortality data, we identified 3,684,040 cancer survivors diagnosed between 1975 and 2020. The SMR of suicide among cancer survivors was calculated, and Poisson regression analysis was used to evaluate trends in suicide risk. Subgroup analyses were performed based on age, gender, race, tumor site, and stage. A competing risk model was used to calculate the 10-year cumulative incidence of suicide.

RESULTS

Among cancer survivors, the overall SMR of suicide was 1.49 (95%CI: 1.46-1.53) times higher than that of the general population in the US. The risk of suicide varied significantly by cancer site, with the highest risk found in patients with malignant respiratory system cancer. Overall, we observed a significant downward trend in the suicide mortality rate among cancer patients. The cumulative incidence of suicide mortality among cancer survivors across four study periods exhibited significant statistical differences (P<0.001).

CONCLUSIONS

Our study highlights the need for targeted suicide prevention efforts for cancer survivors, particularly those diagnosed with respiratory system cancer. The trend of declining suicide mortality rates among cancer survivors is promising, but continued efforts are needed to understand and address the underlying risk factors.

Trends in suicide mortality among prostate cancer survivors in the United States, 1975-2019

BACKGROUND

Suicide was an important cause of death in prostate cancer. This study intended to investigate trends in suicide mortality among prostate cancer (PCa) survivors from 1975 to 2019 in the United States.

METHOD

We identified PCa survivors from the Surveillance, Epidemiology, and End Results (SEER) program from January 1975 to December 2019. Standardized mortality rate (SMR) was calculated d to assess the relative risk of suicide in PCa survivors compared with the general men population. Poisson regression model was performed to test for trend of SMRs. The cumulative mortality rate of suicide was calculated to assess the clinical burden of suicide mortality.

RESULTS

7108 (0.2%) cases were death from suicide cause, and 2,308,923(65.04%%) cases recorded as dying from non-suicidal causes. Overall, a slightly higher suicide mortality rate among PCa survivors was observed compared with general male population (SMR: 1.15, 95%CI: 1.09-1.2). The suicide mortality rate declined significantly relative to the general population by the calendar year of diagnosis, from an SMR of 1.74(95%CI: 1.17-2.51) in 1975-1979 to 0.99(0.89-1.1) in 2015-2019 (Ptrend < 0.001). PCa survivors with aged over 84 years, black and other races, registered in registrations (including Utah, New Mexico, and Hawaii) failed to observe a decrease in suicide mortality (Ptrend > 0.05). The cumulative suicide mortality during 1975-1994 was distinctly higher than in 1995-2019(P < 0.001).

CONCLUSION

The trend in suicide mortality declined significantly from 1975 to 2019 among PCa survivors compared with the general male population in the United States. Notably, part of PCa survivors had no improvement in suicide mortality, and additional studies in the future were needed to explore it.

The efficacy and safety of ketamine for depression in patients with cancer: A systematic review

Background

Management of depression in the oncology population includes supportive psychotherapeutic interventions with or without psychotropic medication, which take time to demonstrate effectiveness. Fast-acting interventions, like ketamine, can provide a rapid antidepressant effect; however, there has been limited research on effects of ketamine among cancer patients. The objective of this review is to provide an overview of research on the efficacy and safety of ketamine on depression in patients with cancer.

Methods

We reviewed the published literature in MEDLINE® (via PubMed®), EMBASE, and Scopus from 1 January 1982 to 20 October 2022. We screened the retrieved abstracts against inclusion criteria and conducted a full-text review of eligible studies. Following extraction of data from included studies, we used a framework analysis approach to summarize the evidence on using ketamine in patients with cancer.

Results

All 5 included studies were randomized clinical trials conducted in inpatient settings in China. In all included studies ketamine was administered intravenously. Three studies used only racemic ketamine, and two studies used both S-ketamine and racemic ketamine. All included studies reported ketamine a tolerable and effective drug to control depression symptoms.

Conclusion

Included studies showed administration of sub-anesthesia ketamine significantly improves postoperative depression among patients with cancer.

The evolving landscape of PCSK9 inhibition in cancer

Cancer is a disease with a significant global burden in terms of premature mortality, loss of productivity, healthcare expenditures, and impact on mental health. Recent decades have seen numerous advances in cancer research and treatment options. Recently, a new role of cholesterol-lowering PCSK9 inhibitor therapy has come to light in the context of cancer. PCSK9 is an enzyme that induces the degradation of low-density lipoprotein receptors (LDLRs), which are responsible for clearing cholesterol from the serum. Thus, PCSK9 inhibition is currently used to treat hypercholesterolemia, as it can upregulate LDLRs and enable cholesterol reduction through these receptors. The cholesterol-lowering effects of PCSK9 inhibitors have been suggested as a potential mechanism to combat cancer, as cancer cells have been found to increasingly rely on cholesterol for their growth needs. Additionally, PCSK9 inhibition has demonstrated the potential to induce cancer cell apoptosis through several pathways, increase the efficacy of a class of existing anticancer therapies, and boost the host immune response to cancer. A role in managing cancer- or cancer treatment-related development of dyslipidemia and life-threatening sepsis has also been suggested. This review examines the current evidence regarding the effects of PCSK9 inhibition in the context of different cancers and cancer-associated complications.

Incidence, Timing, and Factors Associated With Suicide Among Patients Undergoing Surgery for Cancer in the US

Importance

The risk and timing of suicide among patients who undergo surgery for cancer remain largely unknown, and, to our knowledge, there are currently no organized programs in place to implement regular suicide screening among this patient population.

Objective

To evaluate the incidence, timing, and factors associated with suicide among patients undergoing cancer operations.

Design, Setting, and Participants

This retrospective population-based cohort study used data from the Surveillance, Epidemiology, and End Results Program database to examine the incidence of suicide, compared with the general US population, and timing of suicide among patients undergoing surgery for the 15 deadliest cancers in the US from 2000 to 2016. A Fine-Gray competing risks regression model was used to identify factors associated with an increased risk of suicide among patients in the cohort. Data were analyzed from September 2021 to January 2022.

Exposures

Surgery for cancer.

Main Outcomes and Measures

Incidence, compared with the general US population, timing, and factors associated with suicide after surgery for cancer.

Results

From 2000 to 2016, 1 811 397 patients (74.4% female; median [IQR] age, 62.0 [52.0-72.0] years) met study inclusion criteria. Of these patients, 1494 (0.08%) committed suicide after undergoing surgery for cancer. The incidence of suicide, compared with the general US population, was statistically significantly higher among patients undergoing surgery for cancers of the larynx (standardized mortality ratio [SMR], 4.02; 95% CI, 2.67-5.81), oral cavity and pharynx (SMR, 2.43; 95% CI, 1.93-3.03), esophagus (SMR, 2.25; 95% CI, 1.43-3.38), bladder (SMR, 2.09; 95% CI, 1.53-2.78), pancreas (SMR, 2.08; 95% CI, 1.29-3.19), lung (SMR, 1.73; 95% CI, 1.47-2.02), stomach (SMR, 1.70; 95% CI, 1.22-2.31), ovary (SMR, 1.64; 95% CI, 1.13-2.31), brain (SMR, 1.61; 95% CI, 1.12-2.26), and colon and rectum (SMR, 1.28; 95% CI, 1.16-1.40). Approximately 3%, 21%, and 50% of suicides were committed within the first month, first year, and first 3 years after surgery, respectively. Patients who were male, White, and divorced or single were at greatest risk of suicide.

Conclusions and Relevance

In this cohort study, the incidence of suicide among patients undergoing cancer operations was statistically significantly elevated compared with the general population, highlighting the need for programs to actively implement regular suicide screening among such patients, especially those whose demographic and tumor characteristics are associated with the highest suicide risk.

Impact of previous depression on the risk of suicide among prostate cancer patients

BACKGROUND

Prior studies of suicide risk among prostate cancer patients are conflicting. We compared the risk of suicide in prostate cancer patients to cancer-free men including adjustment for clinical stage, socioeconomic position, somatic comorbidity, and previous depression.

MATERIALS AND METHODS

A cohort of 37,527 men diagnosed with prostate cancer in Denmark during 1998-2011 was identified in the Danish Prostate Cancer Registry (DaPCaR) and compared with 357,384 cancer-free men matched by age at the time of diagnosis. The primary outcome was death from suicide. Data were analyzed using cumulative incidence functions and multivariable Cox regression models.

RESULTS

Among prostate cancer patients, 3813 had a previous depression, defined as filed antidepressant prescription within three years before diagnosis. In the study period, 108 prostate cancer patients were registered with suicide as the cause of death, hereof 26 with previous depression. There was no difference in the cumulative incidence of suicide between prostate cancer patients and cancer-free men. There was no effect modification of previous depression on the risk of suicide (p = .12). The hazard ratio (HR) for suicide varied with time since diagnosis. A sensitivity analysis showed that the risk of suicide was highest within the first year of diagnosis where prostate cancer patients had a 1.70-fold increased hazard compared with cancer-free men (95% CI, 1.11-2.59). Men with prostate cancer and previous depression had a three-fold increased hazard for suicide compared with prostate cancer patients without a history of depression (HR 2.84, 95% CI, 1.82-4.45).

CONCLUSION

The absolute risk of suicide is low following a prostate cancer diagnosis. Time since diagnosis and a history of depression was associated with the highest risk of suicide. Healthcare professionals should be aware of an increased risk of suicide among men with previous depression, especially in the immediate aftermath of the diagnosis.

Androgen deprivation therapy and depression in the prostate cancer patients: review of risk and pharmacological management

Purpose: Despite the effectiveness of androgen deprivation therapy in advanced prostate cancer, serious neuropsychiatric consequences in androgen deprivation therapy (ADT)-treated patients, mainly depression, have been concerning and gained more attention recently. This narrative review aims to shed light on the risk and pharmacological management of ADT-induced depression in PCa patients.Methods: We searched PubMed, Scopus and Google Scholar databases using MESH keywords "Prostate cancer OR prostate neoplasm" AND "Depression" AND "Androgen Deprivation Therapy" AND "antidepressants". Search was limited to English and studies conducted on humans. Studies' titles and abstracts were screened, and further information were obtained from the text, if necessary, to decide whether studies are to be included in this review.Results: Our review revealed 23 studies confirming the occurrence and worsening of depressive symptoms in ADT-treated patients, which frequently require pharmacological interventions; whereas 10 studies indicated otherwise. All studies were prospective, retrospective, cross-sectional or case reports. Based on the incidence of depression provided by the observational studies, the average among ADT-treated patients was 18.23% (range: 2.1-46.9%), while it was 8.42% (range: 1.4-23.3%) in the non-ADT patients. Although several treatments have been used for depression in cancer patients, current knowledge lacks observational and controlled studies as well as clinical guidelines that demonstrate efficacy and safety of antidepressants and guide clinicians to the appropriate treatment in these patients, respectively. On the other side, a few clinical studies have been published regarding the efficacy of selective serotonin reuptake inhibitors, selective serotonin and norepinephrine reuptake inhibitors and/or saftey on other ADT associated adverse effects.Conclusions: Our work supports the recent attention towards mood issues as an adverse effect of ADT, and that greater awareness of this is warranted among clinicians. Clinical studies published regarding the use of antidepressants for other ADT associated adverse effects established the foundation that can be adopted to examine these therapies on ADT-induced depression.

Association of suicidal ideation and depression with the use of proton pump inhibitors in adults: a cross-sectional study

Proton pump inhibitors (PPIs) were found to be associated with depression. This study aimed to find the cross-sectional association between recent PPI use and suicidal ideation. Item 9 of Patient Health Questionnaire-9 (PHQ-9) of the US National Health and Nutrition Examination Survey (NHANES) between 2005 and 2018 was used to categorize whether or not the participants had suicidal ideation. The secondary outcome of this study was depression and the scores of the PHQ-9 were used as the depression diagnostic instrument. The study population included 16,881 participants who were over 20 years old. The bivariate Rao-Scott χ² test showed a significant association between PPI use and suicidal ideation (P < 0.001) and a stronger association was observed between PPIs and depression (P < 0.001). Multiple logistic regression analysis of the education, gender, race and age-adjusted model revealed that the PPI users had a 2.34 (95% CI 1.66-3.31) greater risk of having suicidal ideation than the non-PPI users. Middle-aged participants (40-49 years) showed the greatest number of differences in suicidal ideation between PPI and non-PPI users (P < 0.001). Future research should continue to consider the psychiatric effects of taking PPIs.

Cancer and psychiatric diagnoses in the year preceding suicide

BACKGROUND

Patients with cancer are known to be at increased risk for suicide but little is known about the interaction between cancer and psychiatric diagnoses, another well-documented risk factor.

METHODS

Electronic medical records from nine healthcare systems participating in the Mental Health Research Network were aggregated to form a retrospective case-control study, with ICD-9 codes used to identify diagnoses in the 1 year prior to death by suicide for cases (N = 3330) or matching index date for controls (N = 297,034). Conditional logistic regression was used to assess differences in cancer and psychiatric diagnoses between cases and controls, controlling for sex and age.

RESULTS

Among patients without concurrent psychiatric diagnoses, cancer at disease sites with lower average 5-year survival rates were associated with significantly greater relative risk, while cancer disease sites with survival rates of >70% conferred no increased risk. Patients with most psychiatric diagnoses were at higher risk, however, there was no additional risk conferred to these patients by a concurrent cancer diagnosis.

CONCLUSION

We found no evidence of a synergistic effect between cancer and psychiatric diagnoses. However, cancer patients with a concurrent psychiatric illness remain at the highest relative risk for suicide, regardless of cancer disease site, due to strong independent associations between psychiatric diagnoses and suicide. For patients without a concurrent psychiatric illness, cancer disease sites associated with worse prognoses appeared to confer greater suicide risk.

Causes of death following small cell lung cancer diagnosis: a population-based analysis

PURPOSE

To examine the distribution of causes of death (CODs) in patients with small cell lung cancer (SCLC).

METHODS

Patients diagnosed with SCLC were identified from the Surveillance, Epidemiology, and End Results Program database during 2004-2015. Standardized mortality rates (SMRs) were performed for each COD to present changes in risk for a particular COD following SCLC diagnosis.

RESULTS

A total of 44,506 patients diagnosed with SCLC were identified in this study, and 42,476 patients died during the follow-up. Of total deaths, 69.5% occurred within the first years after diagnosis, 26% occurred from 1 to 3 years, and 4.5% individuals survived longer than 3 years. In addition, 88.7% of deaths were caused by SCLC, followed by non-cancer causes (7.1%) and other cancers (4.2%). Moreover, non-cancer CODs increased from 6.3 to 30% over time after 3 years of diagnosis. As for non-cancer CODs, cardiovascular diseases, COPD, and septicemia were the most common in SCLC.

CONCLUSION

Non-cancer CODs, such as cardiovascular events, COPD and septicemia, contribute to a considerable proportion of deaths among long-term SCLC survivors, supporting the involvement of multidisciplinary care for the follow-up strategy in SCLC.

Suicide risk and mortality among patients with cancer

Despite substantial progress in cancer therapy in recent decades, patients with cancer remain at high suicide risk. Data from individual studies have not been comprehensively quantified and specific risk factors are ill-defined. We assessed suicide mortality risk according to cancer prognosis, stage, time since diagnosis, gender, ethnicity, marital status, year of recruitment and geographic region. We searched EMBASE, MEDLINE, PsycINFO, Web of Science, CINAHL and Google Scholar for relevant articles up to February 2021. We used a random effects model, performed meta-regression meta-analysis and assessed heterogeneity and publication bias using I², funnel plots and Egger's and Begg's tests. We performed a systematic review including 62 studies and 46,952,813 patients. To avoid patient sample overlap, the meta-analysis was performed on 28 studies, involving 22,407,690 patients with cancer. Suicide mortality was significantly increased compared with the general population (standardized mortality ratio = 1.85, 95% confidence interval = 1.55-2.20). Risk was strongly related to cancer prognosis, cancer stage, time since diagnosis and geographic region. Patients with cancer, particularly those with specific risk factors, should be closely monitored for suicidality and need specialized care to reduce short- and long-term risks of suicide.

Suicidal behaviours among Ugandan university students: a cross-sectional study

BACKGROUND

Suicide remains the leading cause of death among university students often resulting from multiple physical and psychological challenges. Moreover, suicidal behaviours among students appear to have increased due to the COVID-19 pandemic according to some studies.

OBJECTIVE

To explore the prevalence and associated factors for suicidal ideation, suicide plans, and suicide attempts among university students in Uganda.

METHODS

Cross-sectional study data were collected from May to September 2021 from 540 undergraduate university students in south-western Uganda (363 males, mean age 23.3 years). Questions from the General Health Questionnaire (GHQ-28) were used to assess suicidal ideation, while other bespoke questions were used to assess suicide plans and attempts. The survey also investigated the suicide attempt/plan method, location of the suicidal activity, and reason for not enacting the suicide plan. Three independent regression analyses were used to determine the factors associated with different forms of suicidal behaviours.

RESULTS

The prevalence of past-year suicidal behaviours was 31.85% for suicidal ideation, 8.15% for suicide plans, and 6.11% for suicide attempts. Having a chronic physical medical condition increased the likelihood of having all forms of suicidal behaviours. Suicidal ideation was associated with having difficulty paying university tuition fees. However, being in the fifth year of university education, and feeling satisfied with current academic grades reduced the likelihood of suicidal ideation. Individuals feeling satisfied with academic performance appeared to be a protective factor against having suicide plans. Suicide attempts were associated with having a history of sexual abuse and having difficulty paying university tuition fees. The most common method used for attempted suicide was a drug overdose, and the most common location for attempted suicide was their homes.

CONCLUSION

University students have prevalent suicide behaviours especially among students with a chronic physical medical condition, a history of sexual abuse, and problems paying university tuition fees. Based on the present study, for students at risk, universities should provide appropriate interventions such as life skills education and suicide prevention techniques.

A Descriptive Cohort of Suicidal Cancer Patients: Analysis of the Autopsy Case Series from 1993 to 2019 in Milan (Italy)

Suicide in cancer patients has always been a subject of clinical studies, but the contribution of forensic pathology to this phenomenon is poorly reported. With the aim of at least partially filling this gap in information, at the Institute of Forensic Medicine of Milan, Italy, we assessed all suicides that occurred in cancer patients. A descriptive and retrospective analysis was carried out by examining the database of the Institute and autopsy reports. We included 288 suicide cases with proven cancer diseases. For each suicide, sex, age, country of origin, body area affected by cancer, further pathological history, medications, previous suicide attempts and suicidal communications, as well as the place where the suicide occurred, were assessed. Furthermore, from a forensic point of view, we considered the chosen suicide method and any involved means. The majority of cases were male older adults affected by lung, colon and prostate cancer. Violent suicide methods were prevalent, and the most represented suicide method was falling from height regardless of the body area affected by cancer. Such data may be of clinical use for clinicians engaged in the front lines in order to address suicide risk prevention strategies among cancer patients.

Mental Disorders and Suicide Risk among Cancer Patients: A Nationwide Cohort Study

Although cancer patients are known to experience mental disorders and face suicide risk, little is known about the relationship between mental illness and death by suicide in this group. As such, this study aims to examine the association between mental disorders and suicide risk among cancer patients. We used nationally representative cohort data, and included newly diagnosed cancer patients from 2004 to 2012 with whom we followed-up throughout 2013. We used the clinical diagnoses of all mental disorders as an independent variable and suicide death as a dependent variable to estimate the adjusted hazard ratio (AHR) of suicide deaths in patients with cancer using a Cox proportional hazard model. Among total cancer patients (n = 36,220), the 10,567 patients with mental disorders showed higher suicide risk than non-cancer patients (AHR, 1.53; 95% confidence interval [CI], 1.07-2.17), particularly in those who experienced mental disorders prior to cancer diagnosis (AHR, 2.24; 95% CI, 1.35-3.71). Suicide risk among cancer patients who had mood disorders (AHR, 2.23, 95% CI, 1.31-3.81) or anxiety and somatoform disorders (AHR, 1.61, 95% CI, 1.02-2.55) was higher than for those without mental disorders. Suicide risk of stomach (AHR, 3.32; 95% CI, 1.36-8.10) and liver (AHR, 7.57; 95% CI, 1.86-30.72) cancer patients who had mental disorders was higher than for patients without mental disorders. Cancer patients with mental disorders are at increased risk for suicide. During follow-ups after cancer diagnosis, early mental health support needs were provided to patients with mental disorders.

Exploring interpersonal theory of suicide typologies in patients with cancer: A latent profile analysis

The current study examined patterns of endorsement of Interpersonal Theory of Suicide constructs in a group of patients with cancer (N = 133) via Latent Profile Analysis. Four profiles were identified: (1) Interpersonally Distressed (n = 7; 5.2%), (2) Burdened (n = 11; 8.3%), (3) Fearless About Death (n = 40; 30.1%), (4) Non-Distressed (n = 75; 56.4%). Profiles with higher levels of thwarted belongingness, perceived burdensomeness, and hopelessness were associated with greater suicide ideation. Results also suggest there may be characteristics of patients with cancer that require unique consideration about the potential meaning and relevance of such constructs.

Cancer diagnosis and suicide outcomes: Umbrella review and methodological considerations

BACKGROUND

Suicide outcomes in cancer patients represent a major public health concern. We performed an umbrella review (UR) including all meta-analyses (MAs) and systematic reviews (SRs) published on the association between cancer and suicide outcomes.

METHODS

Eligible studies were searched in the main scientific databases up to January 23rd, 2021. Eligible MAs/SRs focused on all suicide phenotypes among cancer patients. Evidence of the association was extracted; the credibility and quality of the included studies were evaluated using ad-hoc tools, including "A MeaSurement Tool to Assess systematic Reviews-2-Revised" (AMSTAR-2-R).

RESULTS

Six MAs and 6 SRs were included. The standardized mortality ratio of suicide in cancer patients was 1.5 to 1.7-fold higher than in the general population. Risk factors for suicide outcomes among cancer patients were male sex and older age, a cancer diagnosis within the prior year, and some specific cancer sites. Among 107 associations, 90 (84.1%) were supported by high credibility of evidence (class II). However, all studies reported a large heterogeneity (I2> 50%) and the majority of them reported considerable heterogeneity (I2> 75%). All MAs used random-effects measures. All MAs but one assessed publication bias and only one disclosed it. The majority of MAs/SRs showed critically low quality based on AMSTAR-2-R.

LIMITATIONS

We could not perform additional analyses due to the limited number of MAs.

CONCLUSIONS

This UR underlines the inflated risk for suicide among cancer patients. Upcoming, well-designed studies are needed to account for a broader set of variables. Several methodological issues likewise warrant attention.

Non-Cancer Causes of Death in Patients With Pancreatic Adenocarcinoma: A Surveillance, Epidemiology, and End Results (SEER)-Based Study

Background This study aimed to identify the most common causes of non-cancer mortality in patients with pancreatic adenocarcinoma (PAC) and compare their mortality risk with the general population. Methodology This study analyzed PAC patients' data registered in the Surveillance, Epidemiology, and End Results (SEER) database. We studied the causes of death and investigated their association with age, sex, race, tumor stage at presentation, and treatment modality according to the time interval from diagnosis during which death events occurred. We used the standardized mortality ratio (SMR). Results A total of 67,694 PAC patients' data were analyzed; of these patients, 64,347 (95.06%) died during the follow-up. Most deaths occurred due to cancer (61,685; 95.86% of deaths), while non-cancer mortality represented only 4.14%. The most common causes of non-cancer mortality were heart diseases (SMR = 2.79), cerebrovascular diseases (SMR = 3.11), and septicemia (SMR = 8.2). PAC patients had a higher mortality risk for all studied mortality causes except Alzheimer's disease (SMR = 0.5) and homicide and legal intervention (SMR = 2.29). Conclusions Approximately 96% of PAC patients' deaths are due to cancer. While the dominant non-cancer causes of death include heart diseases, cerebrovascular diseases, and septicemia, with a higher risk of mortality for most non-cancer causes than the general population.

Psychometric Evaluation of the Persian Version of Religious Orientation Scale in Iranian Patients with Cancer

This paper reports on the psychometric properties of the Religious Orientation Scale (ROS) with a sample of 311 Iranian patients who were suffering from cancer between September and December 2020. A cross-sectional study design was used, and convenience sampling was employed. Reliability was evaluated by internal consistency Cronbach's alpha, McDonald's omega, and average inter-item correlation. The exploratory factor analysis showed that the ROS had 15 items and two factors (religious identity and personal identity) that explained 43.2% of the total variance of religious orientation in Iranian patients with cancer. Construct validity was assessed by means of confirmatory factor analysis. The internal consistency and composite reliability were acceptable. The results indicate that the ROS can produce reliable and valid data on religious orientation in a sample of Iranian patient with cancer.

Risk factors for suicide mortality and cancer-specific mortality among patients with gastric adenocarcinoma: A SEER based study

OBJECTIVE

This study aims to investigate the risk factors for suicide in patients with gastric adenocarcinoma (GAC) to recognize patients at higher risk who require special mental health care.

METHODS

Patients' data were collected from the Surveillance, Epidemiology, and End Results database from 1975 to 2016. The relationships among categorical variables were assessed using Person's chi-square test. Standardized mortality ratio was used to compare ratios of suicide and other causes of death between the US population and adenocarcinoma patients. Cox regression and Kaplan-Meier were used for multivariate and univariate analyses. The probability of suicide was assessed using the binary regression analysis. All analyses were conducted using SPSS software.

RESULTS

Among 59,580 patients included in this study, 86 died due to suicide. The mean survival months was higher in patients <50 years (81.759) than in patients ≥50 years (42.961), and in females (49.116) than in males (44.591). The multivariate analysis showed a higher suicide mortality risk in divorced patients (HR = 2.461; 95% CI [1.015, 5.966], p = 0.046), patients not recommended for surgery (HR = 1.997; 95% CI [1.08, 3.694], p = 0.027) and patients with distant stage of the disease (HR = 2.68; 95% CI [1.395, 5.147], p = 0.003). Females had a lower suicide mortality risk (HR = 0.124; 95% CI [0.045, 0.314], p < 0.001).

CONCLUSION

GAS predisposes to suicide. The risk is higher in patients who are males, divorced, not recommended for surgery, or have a distant spread of the disease.

Depression, anxiety, and suicidality in patients with prostate cancer: a systematic review and meta-analysis of observational studies

BACKGROUND

Psychiatric implications of prostate cancer are increasingly recognised, having important effects on oncological and functional outcomes. However, findings for co-occurring depression, anxiety, and suicidality remain variable. Therefore, this review of observational studies aimed to establish best estimates of the prevalence and rates of these outcomes in prostate cancer patients.

METHODS

A systematic literature search was conducted using MEDLINE, Scopus, PsycInfo, and Cochrane Library databases from inception up to 26 May 2020. Observational studies using validated methods for evaluating prevalences of depression, anxiety and suicidal ideation, or suicide mortality rates post prostate cancer diagnosis were included. Random effect models were used to calculate pooled prevalences of depressive and anxiety symptoms or disorders, and suicidal ideation post diagnosis. Additionally, pooled crude suicide mortality rates per 100,000 person years were calculated. Heterogeneity was explored using a stratified analysis.

RESULTS

Of 3537 articles screened, 117 were included. Pooled prevalence for depressive disorders was 5.81% (95% CI 4.36-7.46) in 11 studies, representing 655,149 patients. Significant depressive symptoms were identified in 17.07% (15.14-19.09) across 32,339 patients and 76 studies. In total, 16.86% (14.92-18.89) had significant anxiety symptoms in 56 studies combining 24,526 patients. In 6,173 patients and eight studies, recent suicidal ideation was present in 9.85% (7.31-12.70). Crude suicide mortality rate after diagnosis was 47.1 (39.85-54.96) per 100,000 person years in 12 studies. Significant heterogeneity was seen with potential sources identified through our sensitivity analysis including diagnostic method utilised, study size and location of study.

CONCLUSIONS

The mental health impact in patients with prostate cancer is significant. Depressive, anxiety, and suicidal symptoms were common. Additionally, a high suicide mortality rate was identified when compared to general population estimates. Screening of patients and integration of physical and mental health care should be evaluated further to improve quality of life and functional outcomes.

Thoughts of death and suicidality among patients with cancer: Examining subtypes and their association with mental disorders

OBJECTIVE

Cancer is associated with an increased risk for completed suicide. We explored subtypes of thoughts of death, death wishes, suicidal ideation and behavior and their association with mental disorders and demographic and disease-related characteristics.

METHODS

We studied 2,141 cancer patients with the standardized Composite International Diagnostic Interview-Oncology (CIDI-O). Assessment included 4-weeks-prevalences of thoughts of death, wish to die, suicidal ideation, suicide plans, and lifetime suicide attempts. We further assessed 4-weeks-prevalences of mood, anxiety, adjustment, somatoform, substance use, and disorders due to general medical condition. We conducted latent class analyses (LCA).

RESULTS

The LCA identified three classes with distinct patterns of suicidality. Class 1 (89.0% of the sample) showed no suicidality. Class 2 (6.9%) was characterized by thoughts of death without suicidal ideation. Class 3 (4.1%) was characterized by thoughts of death, suicidal ideation, and suicide plans. Death wishes occurred in both classes 2 and 3. Classes 2 and 3 were associated with a significantly higher risk for any mental disorder (OR from 4.22, adjustment disorder, to 10.20, mood disorders, p < 0.001) compared to class 1. Patients with mental disorders were equally likely in classes 2 and 3. Patients with incurable cancer were significantly more likely in class 2, and less likely in class 3.

CONCLUSIONS

Cancer patients with suicidal ideation are not distinctly characterized by mental disorders. Further study of concepts that consider problematic adjustment to the cancer stressor such as death anxiety and demoralization may contribute to understand psychological distress underlying subtypes of thoughts of death and suicidality in cancer.

Acute and Sustained Reductions in Loss of Meaning and Suicidal Ideation Following Psilocybin-Assisted Psychotherapy for Psychiatric and Existential Distress in Life-Threatening Cancer

People with advanced cancer are at heightened risk of desire for hastened death (DHD), suicidal ideation (SI), and completed suicide. Loss of Meaning (LoM), a component of demoralization, can be elevated by a cancer diagnosis and predicts DHD and SI in this population. We completed a randomized controlled trial in which psilocybin-assisted psychotherapy (PAP) produced rapid and sustained improvements in depression, demoralization, and hopelessness in people with cancer. Converging epidemiologic and clinical trial findings suggests a potential antisuicidal effect of this treatment. To probe our hypothesis that PAP relieves SI through its beneficial impacts on depression and demoralization (LoM in particular), we performed secondary analyses assessing within- and between-group differences with regard to LoM and an SI composite score. Among participants with elevated SI at baseline, PAP was associated with within-group reductions in SI that were apparent as early as 8 h and persisted for 6.5 months postdosing. PAP also produced large reductions in LoM from baseline that were apparent 2 weeks after treatment and remained significant and robust at the 6.5 month and 3.2 and 4.5 year follow-ups. Exploratory analyses support our hypothesis and suggest that PAP may be an effective antisuicidal intervention following a cancer diagnosis due to its positive impact on hopelessness and demoralization and its effects on meaning-making in particular. These preliminary results implicate psilocybin treatment as a potentially effective alternative to existing antidepressant medications in patients with cancer that are also suicidal, and warrant further investigation in participants with elevated levels of depression and suicidality.

Firearm Suicides in the Elderly: A Narrative Review and Call for Action

Firearm suicides are one of the leading causes of death for older Americans. The purpose of this review is to explore the risk factors associated with suicides in the elderly, provide an overview of the epidemiology of firearm-related suicides in older Americans, and explore methods of preventing firearm suicides in the elderly. The vast majority (70 %) of elderly suicides in the U.S were committed using a firearm. Elderly firearm suicides have increased by 49 % between 2010 and 2018, disproportionately affecting white males. Yearly firearm suicides in the elderly ranged from 4,276 in 2010 to 6,375 in 2018. In 2018, the rate of elderly male firearm suicides was 24.96/100,000 compared to a rate of 1.92/100,000 for elderly females, a rate ratio of 13 to 1 for males compared to females. The primary risk factors for elderly firearm suicides seem to be physical illnesses, mental illnesses, and social factors. Older Americans engage in suicidal behaviors with greater planning and lethality of intent than do young adults. Of all the strategies to prevent suicides with firearms, the most efficacious measures based on current research seem to be state firearm legislation and improving mental healthcare, but these effects are not specific to the elderly. Strengthening state firearm laws and improving mental healthcare for the elderly may have promise in preventing elderly firearm-related suicides. Additional implications for practice and research are discussed in this review.

Does physical ill-health increase the risk of suicide? A census-based follow-up study of over 1 million people

AIMS

Mental ill-health is a known risk factor for suicide mortality. However, the relationship between physical ill-health and suicide is less clear. This study examined the relationship between different aspects of physical ill-health and the risk of suicide death.

METHODS

Data for 1 196 364 adults (aged 18 years and over) were identified from the 2011 Northern Ireland Census and linked to death registrations until the end of 2015. Multivariate logistic regression was used to construct models to test associations with likelihood ratio tests for interactions.

RESULTS

Over one in eight individuals (13.7%) reported multimorbidity (⩾2 physical health conditions) and one in four (25.4%) identified having limitation of daily activities. During follow-up, 51 672 individuals died; 877 due to suicide. The gradient in suicide risk by number of physical conditions disappeared following adjustment for activity limitation. Individuals with a lot of activity limitation were over three times more likely to die by suicide (OR = 3.13, 95% CI 2.50-3.93) compared to those with no limitations though this was reduced to OR = 1.72 (95% CI 1.35-2.20) with adjustment for poor mental health. The relationship between activity limitation and suicide was most pronounced at younger ages (18-34 years).

CONCLUSIONS

This study suggests that it is the effect that physical illness has on a person's life, in terms of disruption to daily activity, rather than the number of conditions that predicts suicide risk, especially at younger ages. Improved awareness and better management of mental wellbeing of individuals with physical health conditions may help to reduce suicides, especially in younger people.

Long-term follow-up of psilocybin-assisted psychotherapy for psychiatric and existential distress in patients with life-threatening cancer

BACKGROUND

A recently published randomized controlled trial compared single-dose psilocybin with single-dose niacin in conjunction with psychotherapy in participants with cancer-related psychiatric distress. Results suggested that psilocybin-assisted psychotherapy facilitated improvements in psychiatric and existential distress, quality of life, and spiritual well-being up to seven weeks prior to the crossover. At the 6.5-month follow-up, after the crossover, 60-80% of participants continued to meet criteria for clinically significant antidepressant or anxiolytic responses.

METHODS

The present study is a long-term within-subjects follow-up analysis of self-reported symptomatology involving a subset of participants that completed the parent trial. All 16 participants who were still alive were contacted, and 15 participants agreed to participate at an average of 3.2 and 4.5 years following psilocybin administration.

RESULTS

Reductions in anxiety, depression, hopelessness, demoralization, and death anxiety were sustained at the first and second follow-ups. Within-group effect sizes were large. At the second (4.5 year) follow-up approximately 60-80% of participants met criteria for clinically significant antidepressant or anxiolytic responses. Participants overwhelmingly (71-100%) attributed positive life changes to the psilocybin-assisted therapy experience and rated it among the most personally meaningful and spiritually significant experiences of their lives.

CONCLUSION

These findings suggest that psilocybin-assisted psychotherapy holds promise in promoting long-term relief from cancer-related psychiatric distress. Limited conclusions, however, can be drawn regarding the efficacy of this therapy due to the crossover design of the parent study. Nonetheless, the present study adds to the emerging literature base suggesting that psilocybin-facilitated therapy may enhance the psychological, emotional, and spiritual well-being of patients with life-threatening cancer.