A multidimensional risk factor model for suicide attempts in later life.

Area of Science:

• Gerontology
• Psychiatry
• Neuroscience

Background:

• Elderly suicide is a global public health issue with complex, multidimensional risk factors.
• Established risks include mental health issues, personality traits, life stressors, medical conditions, social isolation, and poverty.
• Limited data exists on neurobiological markers associated with suicide in older adults.

Purpose of the Study:

• To investigate the combined influence of cerebrovascular risk factors (CVRFs) and other biopsychosocial factors on suicide attempts in older adults.
• To identify distinct risk profiles for suicide attempts between older men and women.

Main Methods:

• A cross-sectional, case-controlled study was conducted in tertiary care and community settings.
• Participants included 77 nondemented Chinese adults aged ≥65 who attempted suicide (cases) and 99 age- and gender-matched controls.
• Data collected included sociodemographics, life events, psychopathology (DSM-IV), personality, functional status, physical health, CVRFs, and executive functions.

Main Results:

• Older women who attempted suicide had significantly higher weighted CVRF scores compared to controls.
• In older women, CVRF score, current depressive disorders, recent life events, and marital status predicted suicide attempt.
• In older men, recent life events, neuroticism, and impaired executive function predicted suicide attempt, with no significant association for CVRF score.

Conclusions:

• CVRFs may increase suicide attempt risk in older women, but not older men.
• Distinct risk factor profiles for suicide attempts exist between older men and women.
• These findings can inform targeted interventions and prevention strategies for elderly suicide.