1. Hyun KR, Kang S, Lee S. Population aging and healthcare expenditure in Korea. Health Econ 2016;25:1239-1251.
7. Bae S, Urrutia-Rojas X, Patel D, et al. Comparison of health behaviors among single- and multiple-member households. Am J Health Behav 2007;31:514-525.
8. Cason KL. Family mealtimes: more than just eating together. J Am Diet Assoc 2006;106:532-533.
9. Liu L, Gou Z, Zuo J. Social support mediates loneliness and depression in elderly people. J Health Psychol 2016;21:750-758.
11. Lee SE, Song YJ, Kim Y, et al. Household food insufficiency is associated with dietary intake in Korean adults. Public Health Nutr 2016;19:1112-1121.
12. Kim HJ, Oh K. Household food insecurity and dietary intake in Korea: results from the 2012 Korea National Health and Nutrition Examination Survey. Public Health Nutr 2015;18:3317-3325.
13. Kim SH, Cho B, Won CW, et al. Self-reported health status as a predictor of functional decline in a community-dwelling elderly population: Nationwide longitudinal survey in Korea. Geriatr Gerontol Int 2017;17:885-892.
14. Ministry of Health & Welfare, The Korean Nutrition Society. Dietary reference intakes for Koreans. Sejong: Ministry of Health & Welfare, The Korean Nutrition Society; 2015.
15. Kim J, Lee JE. Social support and health-related quality of life among elderly individuals living alone in South Korea: a cross-sectional study. J Nurs Res 2018;26:316-323.
18. Kharicha K, Iliffe S, Harari D, et al. Health risk appraisal in older people 1: are older people living alone an “at-risk” group? Br J Gen Pract 2007;57:271-276.
19. Fukunaga R, Abe Y, Nakagawa Y, et al. Living alone is associated with depression among the elderly in a rural community in Japan. Psychogeriatrics 2012;12:179-185.
21. Bocquier A, Vieux F, Lioret S, et al. Socio-economic characteristics, living conditions and diet quality are associated with food insecurity in France. Public Health Nutr 2015;18:2952-2961.
23. Tarasuk VS, Beaton GH. Household food insecurity and hunger among families using food banks. Can J Public Health 1999;90:109-113.