Association between physical illness and suicide among the elderly

Area of Science:

• Gerontology
• Psychiatry
• Public Health

Background:

• Limited research exists on the connection between physical illnesses and suicide in the elderly, with prior studies yielding inconsistent results.
• A larger, more definitive study was needed to clarify the association between physical health conditions and suicide risk in older adults.

Purpose of the Study:

• To investigate the association between various physical illnesses and suicide in individuals aged 55 and over.
• To compare the prevalence of physical illnesses in elderly suicide cases versus a control group.

Main Methods:

• A case-control study design was employed.
• 822 elderly suicide cases were compared with 944 elderly controls who died from motor vehicle accidents.
• Data were collected from individuals aged 55 years or older in Alberta, Canada.

Main Results:

• Elderly suicide cases showed higher rates of cancer, ischemic heart disease, chronic pulmonary disease, peptic ulcer, prostatic disorder, depression, and other psychiatric illnesses compared to controls.
• After adjusting for demographic and clinical factors, cancer (aOR=1.73), prostate disorder (aOR=1.70), chronic pulmonary disease among married individuals (aOR=1.86), depression (aOR=6.70), and other psychiatric illnesses (aOR=2.16) were significantly associated with elderly suicide.
• No significant association was found between suicide and cerebrovascular disease, diabetes mellitus, ischemic heart disease, or peptic ulcer after adjustments.

Conclusions:

• Cancer, prostate disorders, chronic pulmonary disease (particularly in married individuals), and psychiatric illnesses are associated with suicide in the elderly.
• These findings underscore the need for integrated care addressing both physical and mental health in older populations to mitigate suicide risk.