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Nonsuicidal mortality in late-life depression.
1National Unit for Psychiatric Research and Development, Lewisham Hospital, London, United Kingdom.
Journal of Geriatric Psychiatry
|January 1, 1989
Summary
Late-life depression significantly increases mortality risk, primarily from cardiovascular disease, not suicide. This excess mortality stems from complex interactions between depression and physical health over a lifetime.
Area of Science:
- Geriatric Psychiatry
- Cardiovascular Health
- Public Health
Background:
- Late-life depression is linked to increased premature mortality.
- Suicide is a rare cause of death in older adults with depression.
- Excess mortality is often attributed to natural causes, particularly cardiovascular illness.
Purpose of the Study:
- To investigate the causes of excess mortality in older individuals with depression.
- To explore the relationship between late-life depression and physical health outcomes.
- To identify factors contributing to premature death in this population.
Main Methods:
- Prospective study comparing depressed patients with non-depressed controls.
- Analysis considering initial physical health and social factors.
- Examination of potential contributing factors like grief, medications, and substance abuse.
Main Results:
- Excess mortality in late-life depression is mainly due to natural causes, especially cardiovascular disease.
- Neither initial physical health nor social factors fully explained the excess mortality.
- Some excess mortality may be linked to subtle or non-disabling physical conditions.
Conclusions:
- A complex, lifelong interaction exists between depression and physical illness, particularly cardiovascular disease.
- Understanding these interactions is crucial for addressing premature mortality in older adults with depression.
- Further research is needed to elucidate the mechanisms and contributing factors.