Incidence of suicide among adolescent and young adult cancer patients: a population-based study

Factors Affecting Psychosocial Distress in Adolescents and Young Adults with Cancer: BRIGHTLIGHT Cross-Sectional and Longitudinal Cohort Study Results

BACKGROUND/OBJECTIVES

AYAs face unique psychosocial challenges compared to younger children and older adults. Little published data exists about symptoms of psychological distress in AYAs, particularly in large cohorts over time. This study aimed to (1) explore relationships between distress and variables known to impact mental health, (2) examine distress over time, and (3) consult with a patient and public involvement group (Young Advisory Panel, YAP) to contextualize the results.

METHODS

Secondary data analyses were conducted from a multicentre longitudinal cohort study, which recruited 830 participants aged 13-24 years newly diagnosed with different cancers. The mean age was 20.1 (SD 3.3) and 45% were female. Bespoke surveys, including a validated measure of psychosocial distress, were administered five times over 3 years following diagnosis. Participatory workshops were conducted with the YAP to gather their impressions of the study results and inform conclusions.

RESULTS

At the first time point, higher social support was associated with higher distress scores (β = 0.202, p < 0.001) and AYAs with higher depressive symptoms were more likely to see a mental health professional (p < 0.01). Over time, anxiety symptoms remained stable (p = 0.090); however, depressive symptoms improved (p < 0.001). The YAP highlighted the mixed effects of social support and the under-recognition and undertreatment of distress.

CONCLUSIONS

This information identifies key targets, such as social support, that can inform the design of personalized screening and intervention tools. It also highlights specific timepoints at which these efforts can be directed to mitigate distress and improve quality of life. Future research should include longer-term follow-up, qualitative explorations of distress along the disease trajectory, and ongoing co-production efforts.

Acceptance of Illness, Quality of Sleep and Emotional State of Adolescents with Lymphatic Malignancy During the First Cycle of Anticancer Treatment-A Preliminary Report

Background: Medical care provided to adolescents with lymphatic system cancer and leukemia should take into consideration psychological aspects, due to the increased risk of anxiety disorders, depression, irritability and sleep disorders, which may determine acceptance of the disease. Methods: The study included 50 patients of both sexes, aged 14-17. The following questionnaires were used: The Hospital Anxiety and Depression Scale (HADS-M), Athens Insomnia Scale (AIS), Acceptance of Illness Scale (AIS) and Numeric Rating Scale (NRS). Results: A significant group of patients did not accept their disease. Male gender turned out to be a predictor of higher acceptance of the disease. The dominant emotion among young people was anxiety, especially among girls (p = 0.012). The level of depression of most respondents was low or moderate (p = 0.143), and irritability was high (p = 0.074), regardless of gender. Sleep disorders were more common in girls (p < 0.001) and were associated with high levels of anxiety and depression. Regardless of gender, most adolescents experienced pain (≥3 NRS). Conclusions: Recognizing the predictors of disease acceptance, especially in the initial stage of treatment, may be of key importance for current and further therapeutic effects in adolescents; therefore, it should be included in the standards of care for this group of patients.

Prevalence of suicidal ideation, attempts and associated risk factors in oral cancer patients: a systematic review and meta-analysis

BACKGROUND

Oral cancer, including malignancies of the lip, and oral cavity, is associated with significant psychological distress, increasing the risk of suicidal ideation (SI) and suicide attempts (SA). Despite its severe morbidity and mortality, the prevalence of SI and SA and their associated risk factors remain unclear. This systematic review and meta-analysis aimed to quantify the prevalence of SI and SA among oral cancer patients and identify key psychosocial risk factors.

METHODS

A comprehensive literature search was conducted across PubMed, Embase, and Web of Science databases, with an initial search on August 13, 2024, and an update on December 19, 2024. Observational studies reporting SI and SA prevalence in oral cancer patients were included. Study quality was assessed using a modified Newcastle-Ottawa Scale (NOS), and statistical analyses were performed using R version 4.4. Pooled prevalence rates were calculated using a random-effects model, heterogeneity was assessed with I² statistics, sensitivity analysis was performed using a leave-one-out approach, and publication bias was evaluated using Doi plots and LFK index values.

RESULTS

From 5,145 articles, 13 studies from Taiwan, South Korea, Canada, Germany, and the United States, involving 899,765 participants, were included. The pooled prevalence of SI was 13.08% (95% CI, 7.41-22.03) with moderate heterogeneity (I² = 65%), while SA prevalence was 0.32% (95% CI, 0.1-0.7) with high heterogeneity (I² = 99%). Key risk factors included depression (OR = 42.83), dysphoria (OR = 8.06), prior cancer history (OR = 4.53), rural residence, and male gender.

CONCLUSION

This review revealed a substantial psychological impact faced by oral cancer patients, with notable prevalence rates of suicidal ideation and suicide attempts. Identifying major risk factors, such as depression and dysphoria, underscores the need for integrating tailored mental health interventions into routine oncological care.

Suicide Risk Among Patients With Cancer by Sex in Japan: A Population-based Study

BACKGROUND

In Japan, few studies have examined suicide risk for 5-year relative survival rates for cancer sites. Since 5-year relative survival rates differ by sex, we aim to examine suicide risk for patients with cancer separately for men and women.

METHODS

We estimated the risk of suicide among patients with cancer by sex in Japan compared to the general population, using standardized mortality ratios (SMRs). Patients with cancer diagnosed between January 1, 1985-December 31, 2013 and registered in the Osaka Cancer Registry were followed for up to 10 years. The outcome was suicide death. In addition, cancer sites were classified into three prognosis groups based on 5-year relative survival rates: good (>70%), moderate (40-70%), poor (<40%).

RESULTS

Among 623,995 patients with cancer observed for 2,349,432 person-years, 1,210 patients died by suicide (867 men and 343 women). The SMRs were almost equal for men (1.66; 95% confidence interval [CI], 1.55-1.77) and women (1.65; 95% CI, 1.48-1.83). SMRs for cancer prognosis groups were 1.01 (95% CI, 0.84-1.22) for men and 1.47 (95% CI, 1.24-1.73) for women in the good group, 1.53 (95% CI, 1.39-1.68) for men and 1.74 (95% CI, 1.47-2.05) for women in the moderate group, and 2.54 (95% CI, 2.27-2.85) for men and 1.87 (95% CI, 1.43-2.46) for women in the poor group.

CONCLUSION

In this population, both sexes had higher suicide risk with poor prognosis, but the difference in SMRs between the good and poor groups was smaller for women than men.

Suicide Deaths Among Adolescent and Young Adult Patients With Cancer

This cohort study evaluates differences in suicide death rates across age groups of adolescent and young adult patients with cancer over time in the US.

"Music Played a Role in Saving My Life and Getting Me Through All of This": A Descriptive Qualitative Study of Hope in Adolescents and Young Adults Living With Advanced Cancer

Background: Adolescents and young adults (AYAs) living with advanced cancer may experience a heightened risk for existential distress. Addressing AYAs' hopes can stimulate a dialogue about their concerns, values, and goals, provide a path to holistically support their existential needs, and potentially alleviate their distress. This study aimed to evaluate hope's role in a sample of AYAs living with advanced cancer. Method: This study used a Husserlian phenomenology-informed descriptive qualitative research design to elicit AYAs' experiences with hope while living with advanced cancer. Participants were virtually recruited from an academic medical center and an online non-profit organization. Thematic analyses were performed across the data set to identify final themes. Results: Fifteen AYAs aged 12-21 years diagnosed with advanced hematological (80%) or solid (20%) malignancies participated in this study. A main theme of Simple Supports of Hope with a subtheme of Diversion was identified. Participants described music as a form of diversion, which supported their hope. Participants found listening to music calming and comforting and helped them cope with their distress. Performing music provided a creative outlet for negative feelings associated with cancer treatment. Participants reported creating music transformed and deintensified the treatment environment and helped spread hope to healthcare staff. Discussion: AYAs may intentionally use music to improve emotional expression, empowerment, connection, and coping strategies throughout the treatment process for cancer. Additional research needs to be conducted exploring the use of music interventions such as therapeutic songwriting or compositional music therapy to assist AYAs with building coping strategies during treatment for cancer.

Psychological Outcomes in Adolescent and Young Adult Cancer Survivors

The diagnosis of cancer during adolescent and young adulthood (AYA) may alter the development and psychological trajectory of survivors across their lifespan. The current review focuses broadly on emotional health, social functioning, health behaviors, and cancer-related cognitive impairment (CRCI) among AYA survivors. Overall, AYA survivors appear to be at elevated risk of emotional distress symptoms, mood and anxiety disorders, suicide, and mental health care service utilization compared with individuals without a cancer history. Difficulties with social relationships and reduced achievement of expected social outcomes including educational attainment and employment have been reported. Despite risk for health-related morbidities, including subsequent neoplasms, many AYA survivors do not engage in health behaviors at the recommended levels for physical activity, diet, or tobacco and alcohol use. Although CRCI has not been comprehensively characterized in this population, subgroups of AYA survivors appear to be at risk for experiencing CRCI, including survivors of central nervous system tumors, Hodgkin lymphoma, testicular, and breast cancer. Across each considered domain of psychological functioning, intervention efforts have largely focused on acceptability and feasibility with an increasing focus on e/mHealth approaches. Future research should include multiphase studies, including randomized controlled trials designed to evaluate intervention efficacy and effectiveness. It is imperative that psychological interventions consider the unique needs of AYA survivors by developmental stage and across multiple levels of influence (patient, support system, institution, and health care system).

Risk of suicide in patients with thyroid cancer: protocol for a systematic review and meta-analysis

INTRODUCTION

In recent years, the incidence of thyroid cancer has increased manyfold and young adults, who have a greater financial burden and occupational stress, comprise a large number. Previous studies have shown mixed results, even distinct results, on suicide rates among thyroid cancer survivors. As the overdiagnosis and overtreatment of thyroid cancer has gradually become a topical issue, the study aims to summarise the risk of suicide among patients with thyroid cancer to provide robust evidence of the effects of thyroid cancer on suicide.

METHODS AND ANALYSIS

A total of six databases (MEDLINE, Embase, Web of Science Core Collection, PsycINFO, CINAHL and Google Scholar) will be searched according to MeSH, subheadings, and free words, and the planned search date is 31 Jnauary 2024. The search strategy had three parts, such as suicide, cancer and epidemiological studies, moreover, we will collect the detailed suicide information by reviewers' extraction. Standard mortality ratio (SMR) was used as the outcome measure, when SMRs were not available, the risk ratio, HR and detailed number of suicides were extracted to calculate the SMRs.

ETHICS AND DISSEMINATION

The Institutional Review Board of Peking University People's Hospital provided ethical approval exemption and approved the data collection and subsequent analyses in accordance with the Declaration of Helsinki as revised in 2013.

PROSPERO REGISTRATION NUMBER

CRD42023445542.

Risk factors associated with suicidal ideation among cancer patients: a systematic review and meta-analysis

Objective

The objective of this review was to provide a comprehensive summary and analysis of the risk factors associated with suicidal ideation among cancer patients.

Methods

This review adhered to the PICO/S framework and guidelines outlined in the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) framework (PROSPERO CRD42023433639). We searched Web of Science, PubMed, Embase, Scopus, PsycINFO, and Cochrane Library from the establishment date of the databases until June 9, 2023 for observational studies that reveal risk factors associated with suicidal ideation among cancer patients. Software Review Manager 5 (vision 5.4) was used for Meta-analyses.

Results

4,921 studies were obtained through the search of the databases, 40 of which were eligible. Meta-analysis revealed that suicidal ideation in cancer patients was significantly associated with marital status, living alone, post-traumatic stress disorder (PTSD), panic disorder, education, psychiatric illness history, social functioning, childhood adversity experience, financial problems, pain, depression, demoralization, vomiting, residence and anxiety.

Conclusion

Being unmarried, living alone, less educated, living in rural, financial problems, pain, vomiting, PTSD, psychiatric illness history, lower social functioning, childhood adversity experience, anxiety, depression, demoralization, panic disorder were risk factors for suicidal ideation among cancer patients. This review provided evidence-based information for identifying and reducing the risk of suicide in cancer survivors.Systematic review registration: https://www.crd.york.ac.uk/PROSPERO/, CRD42023433639.

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.

A Scoping Review Exploring Access to Survivorship Care for Childhood, Adolescent, and Young Adult Cancer Survivors: How Can We Optimize Care Pathways?

Childhood, adolescent, and young adult (CAYA) cancer survivors are at risk of developing late effects associated with their cancer and its treatment. Survivors' engagement with recommended follow-up care to minimize these risks is suboptimal, with many barriers commonly reported. This scoping review aims to summarize the barriers to accessing follow-up care, using the dimensions of Levesque's framework for accessing healthcare. We retrieved quantitative studies addressing barriers and facilitators to accessing survivorship care in CAYA survivors from PubMed, EMBASE and CINAHL. Data was categorized into the five healthcare access dimensions outlined in Levesque's framework: i) approachability, ii) acceptability, iii) availability and accommodation, iv) affordability, and v) appropriateness. We identified 27 quantitative studies in our review. Commonly reported barriers to accessing care included a lack of survivor and provider knowledge of cancer survivorship, poor health beliefs, low personal salience to engage in follow-up care, high out-of-pocket costs and survivors living long distances from clinical services. Many studies reported increased barriers to care during the transition from paediatric to adult-oriented healthcare services, including a lack of developmentally appropriate services, lack of appointment reminders, and a poorly defined transition process. Healthcare-related self-efficacy was identified as an important facilitator to accessing follow-up care. The transition from pediatric to adult-oriented healthcare services is a challenging time for childhood, adolescent, and young adult cancer survivors. Optimizing CAYAs' ability to access high-quality survivorship care thus requires careful consideration of the quality and acceptability of services, alongside financial and physical/practical barriers (eg distance from available services, appointment-booking mechanisms). Levesque's model highlighted several areas where evidence is well established (eg financial barriers) or lacking (eg factors associated with engagement in follow-up care) which are useful to understand barriers and facilitators that impact access to survivorship for CAYA cancer survivors, as well as guiding areas for further evaluation.

Suicide rates among patients with first and second primary cancer

AIMS

With advancements in cancer treatments, the survival rates of patients with their first primary cancer (FPC) have increased, resulting in a rise in the number of patients with second primary cancer (SPC). However, there has been no assessment on the incidence of suicide among patients with SPC. This study assessed the occurrence of suicide among patients with SPC and compared them with that in patients with FPC.

METHODS

This was a retrospective, population-based cohort study that followed patients with FPC and SPC diagnosed from the National Cancer Institute's Surveillance, Epidemiology, and End Results (SEER) 17 registries database between 1 January 2000 and 31 December 2019.

RESULTS

For patients with SPC, an age of 85+ years at diagnosis was associated with a higher incidence of suicide death (HR, 1.727; 95% CI, 1.075-2.774), while the suicide death was not considerably different in the chemotherapy group (P > 0.05). Female genital system cancers (HR, 3.042; 95% CI, 1.819-6.361) accounted for the highest suicide death among patients with SPC. The suicide death distribution of patients with SPC over time indicated that suicide events mainly occurred within 5 to 15 years of diagnosis. Compared with patients with FPC, patients with SPC in general had a lower risk of suicide, but increased year by year.

CONCLUSION

The risk of suicide was reduced in patients with SPC compared with patients with FPC, but increased year by year. Therefore, oncologists and related health professionals need to provide continuous psychological support to reduce the incidence of suicide. The highest suicide death was found among patients with female genital system cancer.

Lifetime Burden of Psychological Symptoms, Disorders, and Suicide Due to Cancer in Childhood, Adolescent, and Young Adult Years: A Systematic Review and Meta-analysis

Importance

A cancer diagnosis and treatment may result in highly traumatic periods with lasting psychological consequences for children, adolescent, and young adult patients with cancer (CYACs). Early identification and management may prevent long-term psychological morbidity and suicide.

Objective

To analyze risk, severity, and risk factors for depression, anxiety, psychotic disorders, and suicide in CYACs and noncancer comparators.

Data Sources

Literature search of PubMed, MEDLINE, Embase, PsycINFO, CINAHL, and PubMed Central from January 1, 2000, to November 18, 2022.

Study Selection

Full-length articles in peer-reviewed journals that measured and reported risk and/or severity of depression, anxiety, psychotic disorders, and suicide mortality in CYACs and a noncancer comparator group.

Data Extraction and Synthesis

Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) reporting guidelines were followed with prospective PROSPERO registration.

Main Outcomes and Measures

Risk ratios (RRs) were used for dichotomous outcomes, and standardized mean differences (SMDs) were used for continuous outcomes. SMDs were defined as follows: 0.2, small; 0.5, medium; and 0.8, large. Sources of heterogeneity and risk factors were investigated using sensitivity, subgroup, and meta-regression analyses.

Results

From 7319 records, 52 studies were included. Meta-analyses revealed that CYACs were at increased lifetime risk of severe symptoms or a disorder of depression (RR, 1.57; 95% CI, 1.29-1.92), anxiety (RR, 1.29; 95% CI, 1.14-1.47), and psychotic disorders (RR, 1.56; 95% CI, 1.36-1.80) relative to both matched controls and their siblings. Overall suicide mortality was not significantly elevated (RR, 1.63; 95% CI, 0.78-3.40). The mean severity of depression was found to be elevated in CYACs receiving treatment (SMD, 0.44; 95% CI, 0.13-0.74) and long-term survivors (SMD, 0.18; 95% CI, 0.02-0.33). The mean severity of anxiety was found to be elevated only during treatment (SMD, 0.16; 95% CI, 0.03-0.20).

Conclusions and Relevance

Findings of this systematic review and meta-analysis suggest that CYACs may experience lasting psychological burden long into survivorship. Timely identification, preventive efforts, and psycho-oncological intervention for psychological comorbidity are recommended.

Suicide risk among adolescents and young adults after cancer diagnosis: analysis of 34 cancer groups from 2009 to 2019

PURPOSE

We aimed to identify granular groups with an increased risk of suicide among adolescents and young adult (AYA) patients with a previous malignant neoplasm diagnosis.

METHODS

We deployed a cohort of all cases of primary malignant neoplasms diagnosed between the 1st of January 2009 and the 31st of December 2019 among individuals aged 15-39 years registered in the Polish National Cancer Registry. To assess the risk of suicide in comparison with the general AYA population, we calculated sex-age-year standardized mortality ratios (SMR) with 95% confidence intervals (CI).

RESULTS

A total of 50,298 cancer patients (22,111 men and 28,187 women) were included in this study. The risk of suicide for AYA after cancer diagnosis was 2.39-fold higher than that for AYA in the general population (SMR 2.39, 95% CI 1.69 to 3.28). The risk in women (SMR 4.18, 95% CI 1.68 to 8.62) was higher than that in men (SMR 2.18, 95% CI 1.48 to 3.09). A significantly higher risk of suicide was observed in men with testicular cancer (SMR 2.46, 95% CI 1.37 to 4.05).

CONCLUSIONS

Polish AYA diagnosed with cancer had an almost 2.5-fold higher risk of suicide than the general AYA population. The particular risk group was men with testicular cancer within 2-3 and 5-10 years after cancer diagnosis.

IMPLICATIONS FOR CANCER SURVIVORS

To better identify patients at risk of suicide, there is a need to create or adapt screening tools, educate cancer care providers and family physicians, and integrate psychological services into select cancer care specialties.

Cause of Death During Renal Cell Carcinoma Survivorship: A Contemporary, Population-Based Analysis

Background

As the survival rates of patients with renal cell carcinoma (RCC) continue to increase, noncancer causes of death cannot be ignored. The cause-specific mortality in patients with RCC is not well understood.

Objective

Our study aimed to explore the mortality patterns of contemporary RCC survivors.

Methods

We performed a retrospective cohort study involving patients with RCC from the Surveillance, Epidemiology, and End Results (SEER) database. We used standardized mortality ratios (SMRs) to compare the death rates in patients with RCC with those in the general population.

Results

A total of 106,118 patients with RCC, including 39,630 who died (27%), were included in our study. Overall, compared with the general US population, noncancer SMRs were increased 1.25-fold (95% confidence intervals [CI], 1.22 to 1.27; observed, 11,235), 1.19-fold (95% CI, 1.14 to 1.24; observed, 2,014), and 2.24-fold (95% CI, 2.11 to 2.38; observed, 1,110) for stage I/II, III, and IV RCC, respectively. The proportion of noncancer causes of death increased with the extension of survival time. A total of 4,273 men with stage I/II disease (23.13%) died of RCC; however, patients who died from other causes were 3.2 times more likely to die from RCC (n = 14,203 [76.87%]). Heart disease was the most common noncancer cause of death (n = 3,718 [20.12%]; SMR, 1.23; 95% CI, 1.19–1.27). In patients with stage III disease, 3,912 (25.98%) died from RCC, and 2,014 (13.37%) died from noncancer causes. Most patients (94.99%) with stage IV RCC died within 5 years of initial diagnosis. Although RCC was the leading cause of death (n = 12,310 [84.65%]), patients with stage IV RCC also had a higher risk of noncancer death than the general population (2.24; 95% CI, 2.11–2.38).

Conclusions

Non-RCC death causes account for more than 3/4 of RCC survivors among patients with stage I/II disease. Patients with stage IV are most likely to die of RCC; however, there is an increased risk of dying from septicemia, and suicide cannot be ignored. These data provide the latest and most comprehensive assessment of the causes of death in patients with RCC.

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.

Risk factor analysis and nomogram construction for predicting suicidal ideation in patients with cancer

BACKGROUND

Suicidal ideation in cancer patients is a critical challenge. At present, few studies focus on factors associated with suicidal ideation, and predictive models are still lacking. This study aimed at investigating the risk factors for suicidal ideation among cancer patients, and developed a predictive nomogram to screen high risk cancer patients for early prevention and intervention.

METHODS

A questionnaire survey was conducted among cancer patients between May 2021 and January 2022. The factors associated with suicidal ideation were used to construct a multivariate logistic regression model, which was visualized as a predictive nomogram to evaluate the risk of suicidal ideation. Areas under the curve, calibration plot, decision curve analysis, and internal and external validation were used to validate the discrimination, calibration and clinical usefulness of the model.

RESULTS

A total of 820 patients with cancer were recruited for this study and 213 (25.98%) developed suicidal ideation. Levels of demoralization, depression and cancer staging, marital status, residence, medical financial burden, and living condition were influence factors for suicidal ideation. Comparing nomogram with Self-rating Idea of Suicide Scale (SIOSS), the nomogram had a satisfactory discrimination ability with an AUC of 0.859 (95% CI: 0.827-0.890) and 0.818 (95% CI: 0.764-0.873) in the training and validation sets, respectively. The calibration plot and decision curve analysis revealed that this nomogram was in good fitness and could be beneficial in clinical applications.

CONCLUSIONS

Suicidal ideation is common in cancer patients. Levels of demoralization, depression and cancer staging were independent predictors of suicidal ideation. The nomogram is an effective and simple tool for predictive suicidal ideation in cancer patients.