Caregiving reduces mortality risk for most caregivers: a census-based record linkage study

Area of Science:

• Gerontology
• Public Health
• Sociology

Background:

• Advanced welfare systems increasingly depend on informal caregivers.
• Concerns exist regarding the mental and physical wellbeing of informal caregivers.
• The relationship between caregiving and mortality risk requires further clarification.

Purpose of the Study:

• To investigate the association between informal caregiving and mortality risk.
• To determine if the intensity of caregiving influences mortality risk.
• To examine the impact of caregiving on mortality across different demographic and health statuses.

Main Methods:

• A large-scale, census-based record linkage study.
• Involved over 1.1 million individuals, including nearly 184,000 informal caregivers.
• Followed participants for mortality over 33 months.

Main Results:

• Caregivers exhibited a lower overall mortality risk compared to non-caregivers (adjusted Hazard Ratio = 0.72).
• This protective effect persisted even for those providing 50+ hours of care weekly (adjusted HR = 0.77 for men, 0.76 for women).
• Caregivers showed reduced mortality risk across various causes, including ischemic heart disease, and even among those with chronic health issues.

Conclusions:

• The positive impact of caregiving on short-term mortality risk generally outweighs negative effects for most caregivers.
• These findings suggest a need to re-evaluate societal perceptions of informal caregiving.
• Caregiving may confer survival benefits, highlighting its complex relationship with health outcomes.