- Who Dies Alone? Demographics, Underlying Diseases, and Healthcare Utilization Patterns of Lonely Death Individuals in Korea
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Haibin Bai, Jae-ryun Lee, Min Jung Kang, Young-Ho Jun, Hye Yeon Koo, Jieun Yun, Jee Hoon Sohn, Jin Yong Lee, Hyejin Lee
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J Prev Med Public Health. 2025;58(2):218-226. Published online March 4, 2025
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DOI: https://doi.org/10.3961/jpmph.24.704
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Abstract
Summary
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- Objectives
Lonely death is defined as “a person living in a state of social isolation, disconnected from family, relatives, and others, who dies from suicide, illness, or other causes”. This study investigated the characteristics of individuals who die alone in Korea.
Methods We constructed a database of lonely death cases by linking data from the Korea Crime Scene Investigation Unit of the Korea National Police Agency with National Health Insurance Service (NHIS) records. A descriptive analysis was performed to evaluate the demographics, underlying diseases, and healthcare utilization patterns among lonely death cases.
Results Among the 3122 individuals identified as lonely death cases, 2621 (84.0%) were male and 501 (16.0%) were female. The most common age group was 50-59 years (n=930, 29.8%). The NHIS covered 2161 individuals (69.2%), whereas 961 individuals (30.8%) were enrolled in Medical Aid (MA). The highest number of lonely deaths occurred in Seoul areas, with 1468 cases (47.0%). Mood disorders were diagnosed in 1020 individuals (32.7%), and various alcohol-related diseases, including alcoholic liver disease, were also observed. Outpatient visits increased leading up to death but declined in the final 3 months, while hospitalizations decreased and emergency room visits slightly increased.
Conclusions Most lonely death cases involved male in their 50s, with a disproportionately high number of MA beneficiaries compared to the general population. Many of these individuals also experienced mental health issues or alcohol-related disorders. Preventing social isolation and strengthening social safety nets are critical to reducing the occurrence of lonely deaths.
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Summary
Korean summary
한국에서 고독사란 법적으로 “가족, 친척 등 주변 사람들과 단절된 채 사회적 고립상태로 생활하던 사람이 자살ㆍ병사 등으로 임종”하는 것으로 정의하고 있다. 고독사 사망자는 대체적으로 50대 남성이었고, 의료급여 수급권자의 비율이 일반 인구보다 월등히 높았으며, 사망자 대다수는 정신건강 문제 또는 알코올성 질환을 앓고 있었다. 사회적 고립의 예방 및 사회안전망 구축은 고독사 예방에 있어 매우 중요한 역할을 할 것으로 보인다.
Key Message
Lonely death is defined as “a person living in a state of social isolation, disconnected from family, relatives, and others, who dies from suicide, illness, or other causes”. This study investigated the characteristics of individuals who die alone in Korea. Most lonely death cases involved male in their 50s, with a disproportionately high number of MA beneficiaries compared to the general population. Many of these individuals also experienced mental health issues or alcohol-related disorders. Preventing social isolation and strengthening social safety nets are critical to reducing the occurrence of lonely deaths.
- Necessity of Analyzing the Korea Community Health Survey Using 7 Local Government Types
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Seowoo Park, Haibin Bai, Jae-ryun Lee, Soomin Kim, Hyemin Jung, Jin Yong Lee
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J Prev Med Public Health. 2025;58(1):83-91. Published online November 5, 2024
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DOI: https://doi.org/10.3961/jpmph.24.388
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Abstract
Summary
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This study examined the potential of a new analytical framework for the Korea Community Health Survey (KCHS) with classification criteria for the sub-national governmental level, the degree of urbanization including an urban-rural multimodal category, and population size as a more effective tool to address local health problems and deduce practical implications.
Methods Retrospective survey data from 2023 KCHS were obtained. Frequency analyses were performed for self-rated good health status, current smoking status, and unmet medical needs as proxies for health status, as well as health behavior and healthcare utilization, utilizing individual weights to represent national community residents.
Results We established a new classification of local governments into 7 types to facilitate regional comparisons. These local government types are presumably composed of populations showing statistically significant differences in demographic characteristics. There were evident differences in health status, health behavior, and healthcare utilization in comparisons of groups categorized by local government types.
Conclusions This study suggests that regional disparities can be analyzed using a new typology of local governments. This practically effective approach could be used in decision-making for community-centered health projects in terms of community health planning. Future research should conduct analyses of KCHS data that use these 7 local government types to comprehensively reflect regional characteristics.
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Summary
Korean summary
이 연구는 지방자치단체 층위와 도·농복합시를 포함한 도시화 정도, 인구 규모를 고려한 분류 기준을 사용하여 지역사회건강조사(KCHS)에 대한 새로운 분석틀의 가능성을 검토한다. 기초 지방자치단체 7가지 유형으로 분류했을 때, 연구 대상자 집단은 인구 통계학적 특성에 대해 유의미하게 달랐으며 건강 상태, 건강 행태 및 의료 이용에 뚜렷한 차이를 보였다. 이 연구는 지역보건의료계획 측면에서 지역사회 중심 건강증진사업에 대한 의사 결정에 실질적으로 효과적인 접근 방법이 될 수 있는 기초 지방자치단체의 새로운 유형을 제안한다.
Key Message
This study examines the potential of a new analytical framework for the Korea Community Health Survey (KCHS) with classification criteria for the sub-national governmental level, the degree of urbanization including an urban-rural multimodal category, and population size. In comparisons of groups categorized by 7 local government types, populations were significantly different considering demographic characteristics and there were evident differences in health status, health behavior, and healthcare utilization. This study suggests a new typology of local governments which could be a practically effective approach in decision-making for community-centered health projects in terms of community health planning.
- The Impact of COVID-19 on Admissions and In-hospital Mortality of Patients With Stroke in Korea: An Interrupted Time Series Analysis
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Youngs Chang, Soo-Hee Hwang, Haibin Bai, Seowoo Park, Eunbyul Cho, Dohoung Kim, Hyejin Lee, Jin Yong Lee
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J Prev Med Public Health. 2025;58(1):60-71. Published online October 28, 2024
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DOI: https://doi.org/10.3961/jpmph.24.432
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Abstract
Summary
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- Objectives
This study aimed to investigate the impact of coronavirus disease 2019 (COVID-19) on admission rates and in-hospital mortality among patients with ischemic and hemorrhagic stroke.
Methods We constructed a dataset detailing the monthly hospitalizations and mortality rates of inpatients with stroke from January 2017 to December 2021. Employing an interrupted time series analysis, we explored the impact of COVID-19 on hospitalizations and 30-day in-hospital mortality among stroke patients.
Results The number of ischemic stroke admissions decreased by 18.5%, from 5335 to 4348, immediately following the COVID-19 outbreak (p<0.001). The in-hospital mortality rate for ischemic stroke increased slightly from 3.3% to 3.4% immediately after the outbreak, although it showed a decreasing trend over time. The number of hemorrhagic stroke admissions fell by 7.5%, from 2014 to 1864, immediately following the COVID-19 outbreak. The 30-day in-hospital mortality rate for hemorrhagic stroke initially decreased from 12.9% to 12.7%, but subsequently showed an increasing trend.
Conclusions We confirmed that COVID-19 impacted both the admission and death rates of stroke patients. The admission rate for both ischemic and hemorrhagic strokes decreased, while in-hospital mortality increased. Specifically, in-hospital mortality from ischemic stroke rose initially after the outbreak before stabilizing. Additionally, our findings indicate variable effects based on sex, age, and socioeconomic status, suggesting that certain groups may be more susceptible. This underscores the need to identify and support vulnerable populations to mitigate adverse health outcomes.
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Summary
Korean summary
국민건강보험공단 데이터베이스를 자료원으로 하고 ITS 분석을 실시하여 코로나19가 뇌졸중 환자의 입원 및 30일 내 사망률에 미치는 영향을 조사했습니다. 그 결과 코로나19가 뇌졸중 환자의 입원율과 사망률에 모두 영향을 미친다는 사실을 확인했습니다. 특히, 75세 이상과 의료급여 수급자의 허혈성 및 출혈성 뇌졸중 입원율이 감소한 것으로 나타났습니다.
Key Message
Employing an interrupted time series analysis, we explored the impact of COVID-19 on hospitalizations and 30-day in-hospital mortality among stroke patients using the National Health Insurance Service Database. We confirmed that COVID-19 impacted both the admission and death rates of stroke patients. Specifically, ischemic and hemorrhagic stroke admission rates decreased among individuals over 75 and MA beneficiaries.
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- Who Dies Alone? Demographics, Underlying Diseases, and Healthcare Utilization Patterns of Lonely Death Individuals in Korea
Haibin Bai, Jae-ryun Lee, Min Jung Kang, Young-Ho Jun, Hye Yeon Koo, Jieun Yun, Jee Hoon Sohn, Jin Yong Lee, Hyejin Lee Journal of Preventive Medicine and Public Health.2025; 58(2): 218. CrossRef
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