Introduction
Symptoms of depression, anxiety and distress are common in the first years after a cancer diagnosis, but little is known about the prevalence of these symptoms at the long term. The aim of this review was to describe the prevalence of symptoms of depression, anxiety and distress in long‐term cancer survivors, five or more years after diagnosis, and to provide implications for primary care.
Methods
We performed a systematic literature search in the PubMed, PsycINFO and CINAHL databases. Studies were eligible when reporting on the prevalence of symptoms of depression, anxiety and/or distress in long‐term cancer survivors (≥5 years after diagnosis), treated with curative intent.
Results
A total of 20 studies were included. The reported prevalence of depressive symptoms (N = 18) varied from 5.4% to 49.0% (pooled prevalence: 21.0%). For anxiety (N = 7), the prevalence ranged from 3.4% to 43.0% (pooled prevalence: 21.0%). For distress (N = 4), the prevalence ranged from 4.3% to 11.6% (pooled prevalence: 7.0%).
Conclusion
Prevalences of symptoms of depression, anxiety and distress among long‐term survivors of cancer do not fundamentally differ from the general population. This is reassuring for primary care physicians, as they frequently act as the primary physician for long‐term survivors whose follow‐up schedules in the hospital have been completed.
Background
The link between physical conditions and mental health is poorly understood. Functional disability could explain the association of physical conditions with major depressive episode (MDE) as an intermediary factor.
Methods
Data was analyzed from a subsample (N=8,796) of the European Study of the Epidemiology of Mental Disorders (ESEMeD), a cross-sectional general population survey. MDE during the last 12 months was assessed using a revision of the Composite International Diagnostic Interview (CIDI 3.0). Lifetime chronic physical conditions were assessed by self-report. Functional disability was measured using a version of the World Health Organization Disability Assessment Schedule (WHODAS). The associations of physical conditions with MDE and explanation by functional disability were quantified using logistic regression.
Results
All physical conditions were significantly associated with MDE. The increases in risk of MDE ranged from 30% for allergy to amply 100% for arthritis and heart disease. When adjusted for physical comorbidity, associations decreased and were no longer statistically significant for allergy and diabetes. Functional disability explained between 17 and 64% of these associations, most substantially for stomach or duodenum ulcer, arthritis and heart disease.
Limitations
Due to the cross-sectional nature of the study the temporal relationship of the variables could not be assessed and the amount of explanation can not simply be interpreted as the amount of mediation.
Conclusions
Our findings suggest that the association of chronic physical conditions with MDE is partly explained by functional disability. Such explanation is more pronounced for pain causing conditions and heart disease. Health professionals should be particularly aware of the increased risk of depressive disorder when patients experience disability from these conditions.
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