Peak window of suicides occurs within the first month of diagnosis: implications for clinical oncology

Chronic Pain, Hopelessness, and Suicide Risk Among Adult Medical Inpatients

BACKGROUND

Medically ill adults are at elevated risk for suicide. Chronic pain and hopelessness are associated with suicide; however, few studies have examined the interaction between chronic pain and hopelessness in predicting suicide risk among hospitalized adults.

OBJECTIVE

This study aimed to describe the association between chronic pain, hopelessness, and suicide risk, defined as recent suicidal ideation or lifetime suicidal behavior. In addition, we examined the interaction between chronic pain and hopelessness.

METHODS

This was a secondary analysis of a multisite study to validate the Ask Suicide-Screening Questions (ASQ) among adult medical inpatients. Participants reported if they experienced chronic pain that impacted daily life and if they felt hopeless about their medical condition and provided their current pain rating on a 1 to 10 scale, with 10 being the most severe pain. A t-test compared pain severity scores by ASQ outcome. A binary logistic regression model described the association between chronic pain, hopelessness, and suicide risk; parameter estimates are expressed as odds ratios (OR) for interpretation. The interaction between chronic pain and hopelessness was examined in both the transformed (logit) and natural (probability) scales of the generalized linear model.

RESULTS

The sample included 720 participants (53.2% male, 62.4% White, mean age: 50.1 [16.3] years, range = 18-93). On the ASQ, 15.7% (113/720) of patients screened positive. Half (360/720) of the sample self-reported chronic pain. Individuals who screened positive had higher pain rating scores than those who screened negative (t = -4.2, df = 147.6, P < 0.001). Among all patients, 27.2% (196/720) felt hopeless about their medical condition. In the logistic regression model, patients with chronic pain (adjusted OR: 2.29, 95% confidence interval [CI]: 1.21-4.43, P = 0.01) or hopelessness (adjusted OR: 5.69, 95% CI: 2.52-12.64, P < 0.001) had greater odds of screening positive on the ASQ. The interaction effect between pain and hopelessness was not significant in the transformed (B = -0.15, 95% CI: -1.11 to 0.82, P = 0.76) or natural (B = 0.08, 95% CI: -0.07 to 0.23, P = 0.28) scale.

CONCLUSIONS

There were significant independent associations between (1) chronic pain and suicide risk and between (2) hopelessness and suicide risk. Future research should examine the temporality and mechanisms underlying these relationships to inform prevention efforts for medically ill adults.

Suicide among Cancer Patients: Current Knowledge and Directions for Observational Research

Cancer is a major public health concern associated with an increased risk of psychosocial distress and suicide. The reasons for this increased risk are still being characterized. The purpose of this study is to highlight existing observational studies on cancer-related suicides in the United States and identify gaps for future research. This work helps inform clinical and policy decision-making on suicide prevention interventions and ongoing research on the detection and quantification of suicide risk among cancer patients. We identified 73 peer-reviewed studies (2010-2022) that examined the intersection of cancer and suicide using searches of PubMed and Embase. Overall, the reviewed studies showed that cancer patients have an elevated risk of suicide when compared to the general population. In general, the risk was higher among White, male, and older cancer patients, as well as among patients living in rural areas and with lower socioeconomic status. Future studies should further investigate the psychosocial aspects of receiving a diagnosis of cancer on patients' mental health as well as the impact of new treatments and their availability on suicide risk and disparities among cancer patients to better inform policies.

Suicide risk in medically ill inpatients referred to consultation-liaison psychiatric services: A multicenter study

BACKGROUND

The aim of this multicenter study was to investigate the suicide risk in medically ill patients admitted to six Italian hospitals for whom a consultation-liaison intervention was requested.

METHODS

Participants completed socio-demographic and clinical report forms and the Brief Illness Perception Questionnaire. Suicidality was assessed using the P4 screener that investigates the presence of Past suicide attempts, Plans to commit a suicide, Probability of completing suicide, and Preventive factors. Participants were categorized as being at no, low or high suicide risk. Univariate and multivariable associations of categorical and continuous variables with suicide risk were investigated using multinomial logistic regression.

RESULTS

Of the 641 inpatients, with mean age 60 years (SD = 16.9) and 49.2 % male, 13.2 % were at high suicidal risk (HR), 7.6 % low risk (LR) and 79.2 % no risk. Contacts with psychiatrists in the previous six months were associated with LR and HR (OR = 2.159 and 2.634, respectively), ongoing benzodiazepine use was associated with a threefold likelihood of LR (OR = 3.005), and the experienced intensity of illness symptoms was associated with LR and HR (OR = 1.257 and OR = 1.248, respectively). CL psychiatrists prescribed appropriate psychotropic drugs and activated liaison interventions and psychological support for the level of suicidal risk.

LIMITATIONS

The use of self-report measures bears the risk of recall bias.

CONCLUSIONS

Our findings based on psychiatric consultations in the general hospital underscore the need to include suicide risk in the routine assessment of inpatients referred to CL psychiatric services and to plan an appropriate management of suicidal risk after discharge.

Suicide and Cardiovascular Death Among Patients With Multiple Primary Cancers in the United States

Background

Previous studies have demonstrated that patients with a cancer diagnosis have an elevated risk of suicide and cardiovascular death. However, the effects of the diagnosis of multiple primary cancers (MPCs) on the risk of suicide and cardiovascular death remain unclear. This study aimed to identify the risk of suicide and cardiovascular death among patients with MPCs in the United States.

Methods

Patients with a single or MPC(s) between 1975 and 2016 were selected from the Surveillance, Epidemiology, and End Results database in a retrospective cohort study. Mortality rates and standardized mortality ratios (SMRs) of suicides and cardiovascular diseases among patients with MPCs were estimated.

Results

Of the 645,818 patients diagnosed with MPCs included in this analysis, 760 and 36,209 deaths from suicides and cardiovascular diseases were observed, respectively. The suicide and cardiovascular-disease mortality rates were 1.89- (95% CI, 1.76-2.02) and 1.65-times (95% CI, 1.63-1.67), respectively, that of the general population. The cumulative mortality rate from both suicides and cardiovascular diseases among patients with MPCs were significantly higher than those of patients with a single primary cancer (Both p < 0.001). In patients with MPCs diagnosed asynchronously, the cumulative incidence rates of suicides and cardiovascular deaths were higher than those diagnosed synchronously. Among all MPCs, cancers of the pancreas and esophagus had the highest SMRs of suicide (5.98 and 5.67, respectively), while acute myeloid leukemia and brain cancer had the highest SMRs of cardiovascular diseases (3.87 and 3.62, respectively). The SMR of suicide was highest within 1 year after diagnosis, while that of cardiovascular diseases was highest 5 years after diagnosis.

Conclusions

This study showed that the mortality rates from suicides and cardiovascular diseases among patients with MPCs were higher than those with a single primary cancer. Therefore, our results underscore the need for psychological assessment and targeted preventive interventions for suicides and cardiovascular diseases among patients with MPCs.

Patients' communication preferences for receiving a cancer diagnosis: Differences depending on cancer stage

OBJECTIVE

This study aimed to identify communication preferences for receiving a cancer diagnosis in South Korean patients and explore differences depending on cancer stage-with or without recurrence/metastasis.

METHODS

A total of 312 patients from five cancer centers in South Korea completed the Korean version of the Measure of Patients' Preferences questionnaire, Mini-Mental Adjustment to Cancer scale, Insomnia Severity Index, and Hospital Anxiety and Depression Scale.

RESULTS

Among patients without recurrence/metastasis, four factors were indicated: "additional information," "medical information," "emotional support," and "supportive environment." Among patients with recurrence/metastasis, five factors were indicated: "medical information and explanation," "emotional support," "supportive environment," "additional information," and "informing family." In the group without recurrence/metastasis, a positive attitude was a significant predictor of the preference for all four factors and a lower anxiety level was a predictor of the preference for additional information. Patients who reported a high level of anxious preoccupation preferred supportive environments. In the group with recurrence/metastasis, patients who showed a high level of cognitive avoidance preferred to receive medical and additional information and emotional support.

CONCLUSIONS

Cancer patients' preferences for communication when receiving bad news differ whether recurrence/metastasis or not in South Korea. Especially, patients with recurrence/metastasis preferred a clear explanation of medical information, and physicians informing patients' families about their diagnosis and prognosis. Thus, physicians should take patients' medical and psychological characteristics into consideration when delivering the news regarding their condition.

Interventions for Reducing Suicide Risk in Cancer Patients: A Literature Review

The suicide risk of people diagnosed with cancer is two times higher than the general population. The number of cases of diagnosed cancer is estimated to rise by 70% over the next two decades. Evidence-based prevention strategies are necessary to protect this vulnerable group of individuals. The purpose of this review was to find out the risk factors of suicide and which types of interventions can serve as prevention strategies. Psychosocial interventions, pharmacotherapy and physical activity can play a preventive role in reducing psychosocial and physical risk factors, such as mental disorders, poor social support, poor performance status and pain. Further research is needed to develop effective suicide prevention strategies for cancer patients.

Suicide, other externally caused injuries and cardiovascular death following a cancer diagnosis: study protocol for a nationwide population-based study in Japan (J-SUPPORT 1902)

INTRODUCTION

A growing body of literature has demonstrated that cancer patients have a higher risk of suicide and cardiovascular mortality compared with the general population, especially immediately after a cancer diagnosis. Using data from the National Cancer Registry in Japan launched in January 2016, we will conduct the first nationwide population-based study in Japan to compare incidence of death by suicide, other externally caused injuries (ECIs) and cardiovascular disease following a cancer diagnosis with that of the general population in Japan. We will also aim to identify the patient subgroups and time periods associated with particularly high risk.

METHODS AND ANALYSIS

Our study subjects will consist of cancer cases diagnosed between 1 January 2016 and 31 December 2016 in Japan and they will be observed until 31 December 2018. We will calculate standardised mortality ratios (SMRs) and excess absolute risks (EARs) for suicide, other ECIs and cardiovascular death compared with the general population in Japan, after adjustment for sex, age and prefecture. SMRs and EARs will be calculated separately in relation to a number of factors: sex; age at diagnosis; time since cancer diagnosis; prefecture of residence at diagnosis; primary tumour site; behaviour code of tumour; extension of tumour; whether definitive surgery of the primary site was performed; and presence/absence of multiple primary tumours.

ETHICS AND DISSEMINATION

The study protocol was approved by the institutional review board and ethics committee of the National Cancer Center Japan and Nagoya City University Graduate School of Medical Sciences. The findings will be disseminated through peer-reviewed publications and conference presentations.

TRIAL REGISTRATION NUMBER

UMIN000035118; Pre-results.

Risk of Suicide After Cancer Diagnosis in England

IMPORTANCE

A diagnosis of cancer carries a substantial risk of psychological distress. There has not yet been a national population-based study in England of the risk of suicide after cancer diagnosis.

OBJECTIVES

To quantify suicide risk in patients with cancers in England and identify risk factors that may assist in needs-based psychological assessment.

DESIGN, SETTING, AND PARTICIPANTS

Population-based study using data from the National Cancer Registration and Analysis Service in England linked to death certification data of 4 722 099 individuals (22 million person-years at risk). Patients (aged 18-99 years) with cancer diagnosed from January 1, 1995, to December 31, 2015, with follow-up until August 31, 2017, were included.

EXPOSURES

Diagnosis of malignant tumors, excluding nonmelanoma skin cancer.

MAIN OUTCOMES AND MEASURES

All deaths in patients that received a verdict of suicide or an open verdict at the inquest. Standardized mortality ratios (SMRs) and absolute excess risks (AERs) were calculated.

RESULTS

Of the 4 722 099 patients with cancer, 50.3% were men and 49.7% were women. A total of 3 509 392 patients in the cohort (74.3%) were aged 60 years or older when the diagnosis was made. A total of 2491 patients (1719 men and 772 women) with cancer died by suicide, representing 0.08% of all deaths during the follow-up period. The overall SMR for suicide was 1.20 (95% CI, 1.16-1.25) and the AER per 10 000 person-years was 0.19 (95% CI, 0.15-0.23). The risk was highest among patients with mesothelioma, with a 4.51-fold risk corresponding to 4.20 extra deaths per 10 000 person-years. This risk was followed by pancreatic (3.89-fold), esophageal (2.65-fold), lung (2.57-fold), and stomach (2.20-fold) cancer. Suicide risk was highest in the first 6 months following cancer diagnosis (SMR, 2.74; 95% CI, 2.52-2.98).

CONCLUSIONS AND RELEVANCE

Despite low absolute numbers, the elevated risk of suicide in patients with certain cancers is a concern, representing potentially preventable deaths. The increased risk in the first 6 months after diagnosis may indicate an unmet need for psychological support. The findings of this study suggest a need for improved psychological support for all patients with cancer, and attention to modifiable risk factors, such as pain, particularly in specific cancer groups.

Assessment of suicidal behavior and factors associated with a diagnosis of prostate cancer

OBJECTIVES

To determine the incidence of suicide risk in a group of patients who have been diagnosed with localized prostate cancer (PC) and to identify the factors that affect suicidal behavior.

METHODS

Patients from a tertiary care oncology center in São Paulo, Brazil participated in this study and were interviewed after being diagnosed with low-risk or intermediate-risk PC, per the D'Amico risk classification, between September 2015 and March 2016. Patients underwent suicide risk assessment sessions using the Mini International Neuropsychiatric Interview (MINI), the Hospital Anxiety and Depression Scale (HADS), and the CAGE substance abuse screening tool before they started treatment and surveillance. Psychiatric treatment history, family history of suicidal behavior, and the use of psychotropic drugs were also examined.

RESULTS

The prevalence of suicide risk among 250 patients who were recently diagnosed with low-risk or intermediate-risk PC was 4.8%. According to the HADS, 10.8% and 6.8% of patients had a positive score anxiety and for depression, respectively. Alcoholism was suspected in 2.8% of the group. Suicide risk was associated with anxiety (p=0.001); depression (p=0.005); being divorced, separated, widowed, or single (p=0.045); living alone (p=0.028); and prior psychological treatment (p=0.003).

CONCLUSIONS

After being diagnosed with PC, patients who display risk factors for suicide should be monitored by a mental health team.

Increasing suicide risk among cancer patients in Lithuania from 1993 to 2012: a cancer registry-based study

Certain groups of individuals seem to have an increased risk of committing suicide, and a number of studies have reported an increased risk of suicide among cancer patients. In this study, we aim to estimate the risk of suicide among cancer patients in Lithuania over the period 1993-2012. The records of patients diagnosed with primary cancer were extracted from the population-based Lithuanian Cancer Registry and 273 511 cases of first cancer were included in the analysis. Sex, age and calendar period-standardized mortality ratios (SMRs) were calculated by dividing the observed numbers of suicides among cancer patients by the expected number using national rates. An increased suicide risk was found for both sexes combined [SMR=1.31, 95% confidence interval (CI): 1.21-1.41] compared with the general population. For all cancer sites except melanoma and skin, and breast and thyroid cancers, the relative suicide risk was elevated. The suicide risk was almost three-fold higher for advanced-stage patients compared with the general population (SMR=2.89, 95% CI: 2.24-3.73). The highest suicide risk observed in our study was during the first 3 months following cancer diagnosis (SMR=2.43, 95% CI: 1.96-3.01), indicating a critical period shortly after diagnosis. Despite ongoing increases in survival among cancer patients and decreases in suicide mortality in the general Lithuanian population during our study period, the increasing risk for suicide indicates that cancer patients' clinical and psychosocial needs remain unsatisfied. The major clinical implication of these data suggests the importance of multidisciplinary preventive interventions.

Patient Opinions About Screening for Suicide Risk in the Adult Medical Inpatient Unit

As hospital clinicians and administrators consider implementing suicide risk screening on medical inpatient units, patient reactions to screening can provide essential input. This post hoc analysis examined patient opinions about screening for suicide risk in the medical setting. This analysis includes a subsample of a larger quality improvement project designed to screen medically hospitalized patients for suicide risk. Fifty-three adult medical inpatients at a clinical research hospital provided opinions about suicide risk screening. A qualitative analysis of responses to an opinion question about screening was conducted to identify major themes. Forty-three (81%) patients supported screening medical inpatients for suicide risk. Common themes emphasized asking patients directly about suicide, connection between mental/physical health, and the role of screening in suicide prevention. Adult medical inpatients supported screening for suicide risk on medical/surgical inpatient units. Behavioral health clinicians are uniquely poised to champion suicide detection and intervention in the general medical hospital setting. Patient opinions can be utilized to inform thoughtful implementation of universal suicide risk screening in the medical setting.

Suicide in patients with gastric cancer: a population-based study

OBJECTIVE

We conducted this study to examine the rate of suicide in patients with gastric cancer and to identify factors associated with increased risk of suicide using the Surveillance, Epidemiology, and End Results database.

METHODS

The database was queried for patients who were diagnosed with gastric cancer from 1998 to 2011. The rate of suicide and standardized mortality ratio were calculated. Multivariable analyses were conducted to identify factors associated with increased risk of suicide.

RESULTS

A total of 65 535 patients with 109 597 person-years of follow-up were included. A total of 68 patients died of suicide. The age-adjusted rate of suicide was 34.6 per 100 000 person-years (standardized mortality ratios, 4.07; 95% confidence interval, 3.18-5.13). The rate of suicide was highest within the first 3 months after cancer diagnosis (standardized mortality ratios, 67.67; 95% confidence interval, 40.74-106.15). Results of multivariable analyses showed that male sex (incidence rate ratio, 7.15; 95% confidence interval, 3.05-16.78; P < 0.0001), White race (incidence rate ratio, 3.23; 95% confidence interval, 1.00-10.35; P = 0.0491), unmarried status (incidence rate ratio, 2.01; 95% confidence interval, 1.22-3.30; P = 0.0060) and distant stage disease (incidence rate ratio, 2.90; 95% confidence interval, 1.72-4.92; P < 0.0001) were significantly associated with increased risk of suicide.

CONCLUSIONS

Patients with gastric cancer have an ~4-fold higher risk of suicide compared with the general US population. The suicide risk is highest within the first 3 months after diagnosis. Male sex, White race, unmarried status and distant stage disease are significantly associated with increased risk of suicide.

Is a cancer diagnosis associated with subsequent risk of transient global amnesia?

BACKGROUND

Psychological stress has been associated with transient global amnesia (TGA). Whether a cancer diagnosis, a severely stressful life event, is associated with subsequent risk of TGA has not been studied.

METHODS

Based on the Swedish Cancer Register and Patient Register, we conducted a prospective cohort study including 5,365,608 Swedes at age 30 and above during 2001-2009 to examine the relative risk of TGA among cancer patients, as compared to cancer-free individuals. Incidence rate ratios (IRRs) and their 95% confidence intervals (CIs) derived from Poisson regression were used as estimates of the association between cancer diagnosis and the risk of TGA.

RESULTS

During the study 322,558 individuals (6.01%) received a first diagnosis of cancer. We identified 210 cases of TGA among the cancer patients (incidence rate, 0.22 per 1000 person-years) and 4,887 TGA cases among the cancer-free individuals (incidence rate, 0.12 per 1000 person-years). Overall, after adjustment for age, sex, calendar year, socioeconomic status, education and civil status, cancer patients had no increased risk of TGA than the cancer-free individuals (IRR, 0.99; 95% CI, 0.86-1.13). The IRRs did not differ over time since cancer diagnosis or across individual cancer types. The null association was neither modified by sex, calendar period or age.

CONCLUSION

Our study did not provide support for the hypothesis that patients with a new diagnosis of cancer display a higher risk of TGA than cancer-free individuals.

Increased suicide risk in cancer patients in Tyrol/Austria

OBJECTIVES

To investigate whether suicide risk in Tyrol/Austria was increased for cancer patients as compared to the general population and whether subgroups at excess risk could be defined.

STUDY DESIGN AND SETTING

Cohort design based on all malignant cancer cases diagnosed in Tyrol between 1991 and 2010 and excluding nonmelanoma skin cancer. Entry date was date of diagnosis of the index cancer; exit date was either date of suicide or date of death for reasons other than suicide or end of follow-up (Dec 31, 2011). Standardized mortality ratios (SMRs) were computed in the classical way after adjustment for sex, age and year of follow-up.

RESULTS

For all cancer sites except nonmelanoma skin cancer, we observed a SMR of 1.86 [95% confidence interval (CI), 1.57-2.19]. Suicide risk was greatest during the first 6 months after diagnosis with an SMR of 4.74 (95% CI, 3.27-6.66) and was more than fivefold in cases with advanced Stage IV. We observed the greatest excess risk for suicide in patients with head and neck cancers (13 suicides; SMR, 4.73; 95% CI, 2.52-8.09) and lung cancer (14 suicides; SMR, 4.16; 95% CI, 2.27-6.98).

CONCLUSION

In our study population in Tyrol/Austria, we observed a twofold suicide risk in cancer patients as compared with the general population, with the excess risk concentrated in the period shortly after diagnosis and in patients with poor prognosis. Therefore, psychooncological care should be intensified in this group of patients.

A correlational study of suicidal ideation with psychological distress, depression, and demoralization in patients with cancer

PURPOSE

This study aims to study the effects of depression and demoralization on suicidal ideation and to determine the feasibility of the Distress Thermometer as a screening tool for patients with cancer who experience depression and demoralization, and thus to establish a model screening process for suicide prevention.

METHODS

Purposive sampling was used to invite inpatients and outpatients with lung cancer, leukemia, and lymphoma. Two hundred participants completed the questionnaire, which included the Distress Thermometer (DT), Patient Health Questionnaire-9 (PHQ-9), Demoralization Scale-Mandarin Version (DS-MV), and Beck Scale for Suicide Ideation. All data obtained were analyzed using SPSS 18.0 and SAS 9.3.

RESULTS

Tobit regression analysis showed that demoralization influenced suicidal ideation more than depression did (t = 2.84, p < 0.01). When PHQ-9 ≥ 10 and DS-MV ≥42 were used as criteria for the DT, receiver operating characteristic analysis revealed that the AUC values were 0.77-0.79, with optimal cutoff points for both of DT ≥5; sensitivity 76.9 and 80.6 %, respectively; and specificity of 73.9 and 72.2 %, respectively.

CONCLUSIONS

Demoralization had more influence on suicidal ideation than depression did. Therefore, attention should be paid to highly demoralized patients with cancer or high demoralization comorbid with depression for the purposes of suicide evaluation and prevention. The DT scale (with a cutoff of ≥5 points) has discriminative ability as a screening tool for demoralization or depression and can also be used in clinical settings for the preliminary screening of patients with cancer and high suicide risk.

Psychosocial care in cancer

Psychosocial care for cancer patients historically has been overlooked as an aspect of quality clinical care. However, several organizations have recently made strong recommendations for inclusion of psychosocial care across the continuum of treatment, from diagnosis, through treatment, into survivorship, and in the palliative stages of care. The evidence base for screening, diagnosis, and effective treatment of psychosocial issues in the context of cancer care is growing. Recent highly relevant research covering major topics in psycho-oncology, including distress, delivery of care, psychoneuroimmunology, and cognitive deficits related to cancer, is reviewed in this article.