Suicide risk among colorectal cancer patients in Lithuania

Suicide Risk in Digestive Cancer Patients: A Systematic Review of Sociodemographic, Psychological, and Clinical Predictors

A cancer diagnosis often triggers profound psychological and emotional distress as individuals reflect on existential issues such as life and death. The aim of this review was to provide estimates of suicide risk associated with digestive cancer worldwide, and to identify sociodemographic, psychological, and clinical factors associated with suicide risk in patients with digestive cancer.

MATERIALS AND METHODS

The literature search was guided by the following question: What is the relationship between suicide and digestive cancer, and what sociodemographic, psychological, and clinical factors contribute to the risk of suicide in these patients? We searched PubMed, PsycINFO, Embase, CINAHL, and Web of Science, and systematically reviewed the evidence, according to PRISMA guidelines, from relevant articles on the association between digestive system cancers and suicide outcomes published over a 14-year period (2011-2024). Eligible studies were searched in the main scientific databases up to August 2024.

RESULTS

There are many reasons why people die by suicide, including challenges faced by patients in mentally adapting to their new condition and physical illness. Studies have shown that the highest suicide rates in digestive cancer patients are observed in males, older age groups, single people, those with a poor cancer prognosis, and those with a lack of treatment provision (surgery or chemotherapy). The risk of suicide peaks at six months post-discrimination, remains stable for three years, and then declines.

CONCLUSIONS

Systematic changes in cancer care, such as aggressive treatment of pain and physical symptoms, management of delirium and cognitive impairment, routine screening, increased monitoring, and proactive measures for high-risk patients, can play a critical role in preventing unnecessary deaths and addressing the increased vulnerability of cancer patients, underscoring the need for targeted psychological support and early intervention, especially during critical periods like diagnosis and post-treatment recovery.

Risk factors for suicide in patients with colorectal cancer: A Surveillance, Epidemiology, and End Results database analysis

BACKGROUND

Specific risk factors for suicide in patients with colorectal cancer have not been well established. Therefore, we aimed to assess factors associated with increased risk of suicide among patients with colorectal cancer.

METHODS

This was a retrospective cohort analysis of consecutive patients with colorectal cancer. Patients who survived were compared with patients for whom suicide was registered as their cause of death. Data were extracted from the National Cancer Institute's Surveillance, Epidemiology, and End Results Research Database 2000-2020. Primary outcome was risk factors for suicide.

RESULTS

In total, 309,561 patients were included in the analysis; 160,095 (51.7%) were male. Suicide was the cause of death in 1,052 (0.34%). The suicide rate among patients with colorectal cancer decreased over time from 1% between 2000 and 2010 to 0.05% between 2011 and 2020 (P < .001). Male sex (odds ratio, 6.44; P < .001), non-Hispanic ethnicity (odds ratio, 2.84; P = .014), household income between $50,000 and $74,999 (odds ratio, 1.79; P = .008) or <$50,000 (odds ratio, 1.84; P = .030), and metastatic disease (odds ratio, 2.89; P = .001) were independent risk factors for suicide. Colorectal cancer diagnosis in the second half of the study (2011-2020) was associated with lower risk of suicide compared with the first half (odds ratio, 0.338; P < .001).

CONCLUSION

Among patients with colorectal cancer, male patients of non-Hispanic ethnicity and income <$75,000 USD who presented with metastatic disease were at increased risk of suicide. This trend decreased in the last decade, especially compared with the suicide rate among all patients with cancer. On the basis of these findings, we recommend targeted screening of this group of patients with colorectal cancer for suicidality as part of routine oncologic care.

Suicide after colorectal cancer-a national population-based study

AIM

A cancer diagnosis is often associated with physical as well as emotional distress. Previous studies indicate a higher risk for suicide in patients diagnosed with cancer. The aim of this study was to investigate the prevalence of death by suicide in a national cohort of patients with newly diagnosed colorectal cancer compared with a matched control group to determine if patients with colorectal cancer had an increased incidence of death by suicide.

METHOD

This national Swedish cohort was retrieved from the register-based research database CRCBaSe, which includes all patients diagnosed with colorectal cancer between 1997-2006 (rectal) and 2008-2016 (colon) and six controls for each patient matched by age, sex, and county. Cause specific mortality due to suicide was modelled using Cox proportional hazards model and adjusted for known risk factors.

RESULTS

The main analysis included patients operated for colorectal cancer, 55 578 patients compared with 307 888 controls. The first year after diagnosis the hazard ratio (HR) for suicide among patients operated for colorectal cancer was 1.86 (CI: 1.18-2.95) compared to controls. Suicide was more common among men than women (HR 2.08; 1.26-3.42 vs. 1.09; 0.32-3.75). A subgroup analysis of the 9198 patients who did not undergo surgery after diagnoses found a seven-fold increase of suicide (HR 7.03; 3.10-15.91).

CONCLUSION

Suicide after surgery for colorectal cancer was almost twice as high as in the control group, mainly driven by excess mortality among men. Although the cases were few in the subgroup of nonoperated patients, the considerably higher risk of suicide indicates that more resources might be needed in this group. Evaluation of risk factors for suicide among patients with colorectal cancer should be performed for early identification of individuals at risk.

The relationship between a comprehensive index of prosperity and suicide rates in former Soviet countries, including a comparison with European and Asian countries: Discussion from a new perspective

Investigations of suicide in countries of the former Soviet Union, which broke into 15 different countries in the early 1990s, require examinations of a combination of economic, social, and health factors. It is important to address these factors individually and to examine the various composite indicators for each. Moreover, it would be worthwhile to explore the potential applicability of a comprehensive worldwide index. We analyzed data from nine of the former Soviet countries for which both the annual suicide rate and the Global Competitiveness Index (GCI) were available for the years 2006-2017. We determined the precise relationships between the suicide rate and the GCI during this period in these nine countries as well as in nine countries with high suicide rates in Europe and Asia. The results indicated the following: (i) In six of the nine former Soviet countries with complete data, the suicide rate showed a relationship with the GCI. Notably, this relationship was inverse in all but one country. (ii) Among the nine European and Asian countries with high suicide rates, three exhibited a correlation between the suicide rate and the GCI. Measures to prevent suicide should be devised especially in countries of the former Soviet Union through collaboration among multiple fields and organizations, as necessary, with particular attention paid to countries with worse or worsening GCI values.

Exploring the determinants influencing suicidal ideation and depression in gastrointestinal cancer patients

Studies have shown a heightened prevalence of depression and suicidal ideation among patients with Gastrointestinal Cancer (GIC). GIC patients are at a 1.5- to threefold increased risk of suicide and depression compared to other cancer patients. This study investigates the interplay of internet use, family burden, and emotional support on mental health (depression) and suicidal ideation among patients with GIC. The study involves 202 respondents of which 78 were undergoing GIC treatment during this study. Using structural equation modeling, our findings indicate a substantial negative correlation between mental health and suicidal ideation. Overall, suicidal ideation (median score) was noticeably lower in patient who completed their treatment with noticeable individuals with exceptionally high SI even after completing the treatment. Notably, participants who had completed their treatment demonstrated a significantly stronger correlation between emotional support and mental health compared to those who were still undergoing treatment. Age was found to moderate the mental health-suicidal ideation link significantly. Internet usage for health-related information was also inversely correlated with mental health (directly) and suicidal ideation (indirectly). We noted that the influence of emotional support on mental health was significantly higher among individuals who completed their treatment compared to those who were undergoing their GIC treatment. Family burden emerged as significant negative influences on mental health, while emotional support positively impacted mental health. The findings of this study contribute towards a deeper understanding of suicide risk factors in GIC patients, potentially shaping more effective preventive strategies.

Suicide risk following a new cancer diagnosis among Veterans in Veterans Health Administration care

BACKGROUND

Cancer diagnoses are associated with an increased risk for suicide. The aim of this study was to evaluate this association among Veterans receiving Veterans Health Administration (VHA) care, a population that has an especially high suicide risk.

METHODS

Among 4,926,373 Veterans with VHA use in 2011 and in 2012 or 2013, and without VHA cancer diagnoses in 2011, we assessed suicide risk following incident cancer diagnoses. Risk time was from initial VHA use in 2012-2013 to 12/31/2018 or death, whichever came first. Cox proportional hazards regression models evaluated associations between new cancer diagnoses and suicide risk, adjusting for age, sex, VHA regional network, and mental health comorbidities. Suicide rates were calculated among Veterans with new cancer diagnoses through 84 months following diagnosis.

RESULTS

A new cancer diagnosis corresponded to a 47% higher suicide risk (Adjusted Hazard Ratio [aHR] = 1.47, 95% CI: 1.33-1.63). The cancer subtype associated with the highest suicide risk was esophageal cancer (aHR = 6.01, 95% CI: 3.73-9.68), and other significant subtypes included head and neck (aHR = 3.55, 95% CI: 2.74-4.62) and lung cancer (aHR = 2.35, 95% CI: 1.85-3.00). Cancer stages 3 (aHR = 2.36, 95% CI: 1.80-3.11) and 4 (aHR = 3.53, 95% CI: 2.81-4.43) at diagnosis were positively associated with suicide risk. Suicide rates were highest within 3 months following diagnosis and remained elevated in the 3-6- and 6-12-month periods following diagnosis.

CONCLUSION

Among Veteran VHA users, suicide risk was elevated following new cancer diagnoses. Risk was particularly high in the first 3 months. Additional screening and suicide prevention efforts may be warranted for VHA Veterans newly diagnosed with cancer.

Risk factors associated with suicide among esophageal carcinoma patients from 1975 to 2016

Throughout the world, esophageal cancer patients had a greater suicidal risk compared with ordinary people. Thus, we aimed to affirm suicide rates, standardized mortality rates, and underlying suicide-related risk factors of esophageal cancer patients. Patients suffering esophageal cancer were chosen from the Surveillance, Epidemiology, and End Results repository in 1975–2016. Suicide rates as well as standardized mortality rates in the patients were measured. Univariable and multivariable Cox regression had been adopted for establishing the latent suicide risk factors among patients suffering esophageal cancer. On multivariable Cox regression, gender (male vs. female, HR: 6.37), age of diagnosis (70–105 vs. 0–55, HR: 2.69), marital status, race (white race vs. black race, HR: 6.64; American Indian/Alaska Native, Asian/Pacific Islander vs. black race, HR: 8.60), histologic Grade (Grade III vs. Grade I, HR: 2.36), no surgery performed (no/unknown vs. yes, HR: 2.01), no chemotherapy performed were independent risk factors related to suicide in patients suffering esophageal cancer. Male sex, the older age, unmarried state, non-black race, histologic Grade III, no surgery performed, no chemotherapy performed were strongly related to suicide in patients suffering esophageal cancer.

Prevalence and risk factors for suicidality in cancer patients and oncology healthcare professionals strategies in identifying suicide risk in cancer patients

PURPOSE OF REVIEW

The aim of this study was to summarize the literature on prevalence and risk factors for suicidality in cancer patients and to document the research on oncology healthcare professionals' strategies in identifying this risk.

RECENT FINDINGS

Cancer patients exhibit increased risk of suicidality compared with the general population. Various risk factors have been identified including sociodemographic factors such as poverty, being male and elderly as well as disease-related attributes such as cancer type and stage. The literature on how healthcare professionals identify suicide risk is sparse. Ten articles were found that focused on two main themes. These included information on systematic strategies in identifying suicide risk and factors that affect healthcare professionals' ability to identify risk in their patients.

SUMMARY

Although there is an immense amount of literature documenting the problem of suicidality among patients, the research on how healthcare professionals identify and respond to these indications in patients is nearly nonexistent. Cancer centres should implement standardized and systematic screening of cancer patients for suicidality and research on this patient population should collect and report these data. Ongoing training and education for healthcare professionals who work in the oncology setting on how to identify and respond to suicide risk among cancer patients is urgently needed.

Risk factors for suicide in individuals with cancer: an integrative literature review

OBJECTIVE

to develop an integrative literature review on risk factors for suicide in individuals with cancer.

METHOD

searching for articles was conducted in the Scientific Electronic Library Online, Medicinal Literature Analysis and Retrieval System Online, Latin American & Caribbean Literature in Health Sciences, Cumulative Index to Nursing and Allied Health Literature and SciVerse Scopus databases, using the descriptors "suicide" and "cancer".

RESULTS

eighteen articles were selected. Lung, bladder and colorectal cancers are the types of highest risk for suicide. Male, white and over 60 years of age are demographic factors with higher risk for suicide in individuals with cancer.

CONCLUSION

this review made it possible to verify that cancer may be a risk factor for suicide. This evidence can be useful for planning preventive actions in order to reduce the risk of suicide.

A systematic review of suicidal behaviour in men: A narrative synthesis of risk factors

RATIONALE

Suicides by men outnumber those by women in every country of the world. To date, there has not been a comprehensive systematic review of risk factors for suicidal behaviour in men to better understand the excess deaths by suicide in men.

OBJECTIVE

The present systematic review seeks to determine the nature and extent of the risk factors to predict suicidal behaviour in men over time.

METHODS

A range of databases (CINAHL, PsycINFO, Web of Science Core Collection, Pubmed, Embase, and Psychology and Behavioural Sciences Collection) were searched from inception to January 2020 for eligible articles. The findings were collated through a narrative synthesis of the evidence.

RESULTS

An initial 601 studies were identified. Following the inclusion and exclusion criteria, there were 105 eligible studies (62 prospective and 43 retrospective) identified. Overall, the risk factors with the strongest evidence predicting suicidal behaviour in men were alcohol and/or drug use/dependence; being unmarried, single, divorced, or widowed; and having a diagnosis of depression. In the prospective studies, the most consistent evidence was for sociodemographic factors (19 risk factors), mental health/psychiatric illness (16 risk factors), physical health/illness (13 risk factors), and negative life events/trauma (11 risk factors). There were a small number of psychological factors (6 factors) and characteristics of suicidal behaviour (3 factors) identified. The findings from the retrospective studies provided further evidence for the risk factors identified in the prospective studies.

CONCLUSIONS

This systematic review has highlighted the wide range of risk factors for suicidal behaviour in men, in this review alone 68 different risk factors were identified. Many factors can interact and change in relevance throughout an individual's life. This review has identified extensive gaps in our knowledge as well as suggestions for future research.

Risk factors associated with suicide among hepatocellular carcinoma patients: A surveillance, epidemiology, and end results analysis

BACKGROUND

Throughout the world, hepatocellular carcinoma (HCC) remains the primary type of liver cancer. The suicide risk was higher among patients with HCC than the general population. Hence, the purpose of this study was to confirm the suicide rates, standardized mortality ratios (SMRs), and the potential risk factors associated with suicide among HCC patients.

METHODS

HCC patients were collected from the Surveillance, Epidemiology, and End Results (SEER) database during 1975-2016. Suicide rates and SMRs among these patients were calculated, and the general population of the United States (U.S.) during 1975-2016 was used as a reference. Univariable and multivariable Cox regression were taken to find out the underlying risk factors of suicide in HCC patients.

RESULTS

There were 70 suicides identified among 102,567 individuals with HCC observed for 160,500.88 person years. The suicide rate was 43.61 per 100,000 person-years, and SMR was 2.26 (95% CI: 1.78-2.84). On Cox regression, year of diagnosis (1975-1988 vs. 2003-2016, HR: 3.00, 95% CI: 1.01-8.89, P = 0.047; 1989-2002 vs. 2003-2016, HR: 1.92, 95% CI: 1.10-3.34, P = 0.021), gender (male vs. female, HR: 8.72, 95% CI: 2.73-27.81, P < 0.001), age at diagnosis (63-105 years old vs. 0-55 years old, HR: 2.28, 95% CI: 1.21-4.31, P = 0.011), race (white race vs. American Indian/Alaska Native, Asian/Pacific Islander, HR: 3.02, 95% CI: 1.35-6.76, P = 0.007) were independent risk factors of suicide among HCC patients.

CONCLUSIONS

Diagnosed in the early years (1975-2002), male sex, the older age (63-105 years old), white race, survival months (＜2 months) were significantly associated with suicide among HCC patients. For the sake of preventing suicide behaviors, the government, clinicians, and family members should take adequate measures to decrease the rate of suicide, especially in patients with high-risk factors of suicide.

Incidence of suicide death in patients with cancer: A systematic review and meta-analysis

BACKGROUND

Growing evidence indicated the higher risk of suicide in cancer survivors compared with general population. Our aim is to systematically quantify the extent of suicide death and identify risk factors associated with the incidence of suicide in cancer patients.

METHODS

We conducted a meta-analysis of relevant studies published in English or Chinese before May 20, 2020. Suicide rate and the number of suicide death were extracted. Our main outcome was suicide rate per 100,000 person-years with 95% CIs using random-effects model.

RESULTS

The pooled incidence of suicide death was 39.72 per 100,000 person-years (95%CI, 33.91-46.52, I ²= 99.6%, P <0 .001). The suicide rate for cancer patients was higher in men (57.78, 95%CI, 47.31-70.56) than in women (14.47, 95%CI, 11.27-18.57). For both sexes combined, esophagus cancer had the highest rate of suicide (87.71, 95%CI, 27.42-280.54). By sex, suicide rates ranked first in males and females were pancreas cancer (195.70, 95%CI, 129.55-295.61) and esophagus cancer (18.34, 95%CI, 5.92-56.84), respectively. The highest suicide rate was 61.02(95%CI, 53.66-69.40) in Asia, and Oceania (24.07, 95%CI, 20.78-27.88) had lowest suicide rate. Suicide rate had a downward trend by years after diagnosis, with the first six months after cancer diagnosis clearly standing out (89.33, 95%CI, 50.64-157.58).

LIMITATIONS

Included studies came from high-income countries and our results might not represent the suicide rate among cancer patients in low- and middle-income countries.

CONCLUSIONS

The incidence of suicide among cancer patients was high despite the declined trend recent years, which emphasized psychological health aspects of interventions and perfecting suicide prevention programs.