The course of depressive symptoms and mortality in older patients with cancer

Association of depression with all-cause and cancer-specific mortality in older adults with cancer: Systematic review, meta-analysis, and meta-regression

INTRODUCTION

The incidence and mortality of cancer is increasing worldwide with studies reporting that cumulative risk of cancer rises as age increases. Against the backdrop of the increasing prevalence of cancer amongst older patients, we conducted a systematic review and meta-analysis examining the depression-mortality relationship in older adults with cancer (OAC).

MATERIALS AND METHODS

This PRISMA-adherent systematic review involved a systematic search of PubMed, Medline, EMBASE, and PsycINFO for prospective and retrospective cohort studies comparing the risk of all-cause and cancer-related mortality among OAC with depression. Random effects meta-analyses and meta-regressions were used for the primary analysis.

RESULTS

From 5,280 citations, we included 14 cohort studies. Meta-analyses of hazard ratios (HRs) showed an increased incidence of all-cause mortality in OAC with depression (pooled HR: 1.40; 95% confidence interval [CI]: 1.25, 1.55). Subgroup analyses of other categorical study-level characteristics were insignificant. While risk of cancer-related mortality in OAC with depression was insignificantly increased with a pooled HR of 1.21 (95% CI: 0.98, 1.49), subgroup analysis indicated that risk of cancer-related mortality in OAC with depression significantly differed with cancer type. Our systematic review found that having fewer comorbidities, a higher education level, greater socioeconomic status, and positive social supportive factors lowered risk of all-cause mortality in OAC with depression.

DISCUSSION

Depression in OAC significantly increases risk of all-cause mortality and cancer-related mortality among different cancer types. It is imperative for healthcare providers and policy makers to recognize vulnerable subgroups among older adults with cancer to individualize interventions.

Depression and anxiety in older adults with cancer: Systematic review and meta-summary of risk, protective and exacerbating factors

OBJECTIVE

To systematically evaluate the risk factors of depression and anxiety in older adults with cancer.

METHOD

This PRISMA-adherent systematic review (PROSPERO CRD42022372747) involved a systematic database search for prospective and retrospective cohort studies.

RESULTS

We included 33 cohort studies with 31 evaluating depression and seven evaluating anxiety. Systematic synthesis yielded various protective and exacerbating factors for depression and anxiety amongst older adults with cancer. These factors span a range of domains: (1) Cancer and associated treatment-related factors; (2) Medical, physical and functional factors; (3) Demographic factors and; (4) Social and lifestyle factors. At the individual-level, the most significant factors were the presence of chronic medical comorbidities, having pre-existing psychological symptoms, and poor baseline physical and functional status. Within the social unit, the degree of social support and presence of a partner were most significant.

CONCLUSION

The deleterious impact comorbid psychological symptoms can have on older adults with cancer can be profound. In this review, we highlight a range of protective and exacerbating factors identified from cohort studies that may enable policymakers to tailor and individualise interventions to manage depression, anxiety and associated burden in this vulnerable population. The relative paucity of studies evaluating anxiety highlights an important research gap.

Antidepressant use pattern and disparities among cancer patients in the United States

Many cancer patients also suffer from depression, however, pharmacotherapy of depression and related disparities in US cancer survivors have not been examined in a nationally representative sample. In the present study, 2,590 adult cancer survivors participating in the National Health and Nutrition Examination Survey 2011-2020 were included and antidepressant use pattern was investigated. To examine disparities by social-demographic characteristics and access to healthcare, multivariate logistic regression analysis was conducted in 422 cancer patients who were using antidepressants and 230 cancer patients who were not using antidepressants but were diagnosed with depression. Results suggested that 21% of adult cancer survivors were using antidepressants and selective serotonin reuptake inhibitors were the most common type of antidepressants used. Antidepressant users were more likely to be female, non-Hispanic white, those who were married or living with partner. In addition, those without a routine place to go for healthcare were less likely to use antidepressants. Disparities were not found by age, family income levels, education, or health insurance coverage. The findings highlight disparities in antidepressant use in cancer patients in the US. Policy makers need to better allocate healthcare resources and facilitate availabilities of affordable care to every patient in need.