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2. KOSIS. Number of private households by head’s age and household type [Internet]. Daejeon. Statistics Korea. 2022. cited 2023 November 1. Available from: https://kosis.kr/statHtml/statHtml.do?orgId=101&tblId=DT_1BZ0502&conn_path=I2&language=en
3. KOSIS. Seoul survey 2021, the elderly living alone [Internet]. Daejeon. Statistics Korea. 2022. cited 2023 November 1. Available from: https://kosis.kr/statHtml/statHtml.do?orgId=201&tblId=DT_201004_F030011&conn_path=I2
4. Health Behaviors and Lifestyle Patterns of Elderly Living Alone in Korea