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Potential Risk Factors for Lonely Death: A Nationwide Case-Control Study in Korea.

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Lonely deaths are linked to low income, multiple health conditions, and frequent healthcare use. Identifying these risk factors can help prevent lonely deaths in vulnerable populations.

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Area of Science:

  • Social Epidemiology
  • Public Health
  • Gerontology

Background:

  • Lonely death, defined as dying alone at home and discovered later, is a growing societal concern.
  • Identifying characteristics of individuals experiencing lonely deaths is crucial for public health interventions.

Purpose of the Study:

  • To identify demographic, health, and healthcare utilization characteristics differentiating individuals who died alone from a control group.
  • To distinguish high-risk populations for lonely deaths through comparative analysis.

Main Methods:

  • A case-control study utilizing data from Korean Crime Scene Investigation and National Health Insurance Service (NHIS) databases.
  • Inclusion of 3,122 lonely death cases and 9,493 sex- and age-matched controls from 2021.
  • Logistic regression analysis to assess associations between lonely deaths and various factors.

Main Results:

  • Individuals experiencing lonely deaths were more likely to have medical aid coverage, belong to the lowest income bracket, and have high comorbidity scores (Charlson Comorbidity Index ≥ 3).
  • Higher prevalence of chronic diseases (diabetes, heart failure), mental health disorders (schizophrenia, bipolar disorder), and alcohol-related diseases were observed in the lonely death group.
  • Frequent healthcare utilization was also a significant factor associated with lonely deaths.

Conclusions:

  • Lonely death is strongly associated with socioeconomic factors like low income and health-related factors such as multi-morbidity and pre-existing conditions.
  • Frequent healthcare utilization is a key indicator linked to lonely deaths.
  • Targeted interventions for high-risk groups, focusing on low income and complex health needs, are recommended to prevent lonely deaths.