{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,28]],"date-time":"2026-02-28T13:03:42Z","timestamp":1772283822797,"version":"3.50.1"},"reference-count":38,"publisher":"Public Library of Science (PLoS)","issue":"12","license":[{"start":{"date-parts":[[2023,12,14]],"date-time":"2023-12-14T00:00:00Z","timestamp":1702512000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Research Foundation of Korea (NRF) grant funded by the Korea government","award":["2022R1F1A1068236"],"award-info":[{"award-number":["2022R1F1A1068236"]}]},{"name":"Electronics and Telecommunications Research Institute (ETRI) grant funded by ICT R&D program of MSIT\/IITP","award":["2020-0-01861"],"award-info":[{"award-number":["2020-0-01861"]}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>This secondary analysis used data collected for the Korean Longitudinal Study of Aging from 2006 to 2018 to examine changes in life satisfaction among middle-aged adults living alone in South Korea. Individuals who were over 45 years of age, lived alone at the time of the first data collection wave, and responded at least twice to the survey over the 12-year study period were included in the final linear mixed model (<jats:italic>N =<\/jats:italic> 124). Life satisfaction increased for those who had increased assets, were widowed, and had more frequent contact with acquaintances (i.e., once a month and once a week compared with once a year). Life satisfaction decreased as the number of chronic illnesses increased for underweight individuals compared with normal weight or overweight individuals and for depressed versus non-depressed individuals. This study\u2019s findings indicate that increased social support is beneficial for middle-aged marginalized individuals, including those who are economically disadvantaged, have few social interactions, are underweight, and have chronic illnesses.<\/jats:p>","DOI":"10.1371\/journal.pone.0295895","type":"journal-article","created":{"date-parts":[[2023,12,14]],"date-time":"2023-12-14T18:34:26Z","timestamp":1702578866000},"page":"e0295895","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":7,"title":["Changes in life satisfaction among middle-aged adults living alone over a 12-year span"],"prefix":"10.1371","volume":"18","author":[{"given":"Jaehee","family":"Yoon","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2945-3893","authenticated-orcid":true,"given":"Jeewuan","family":"Kim","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joohyun","family":"Chung","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7359-0003","authenticated-orcid":true,"given":"Heesook","family":"Son","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"340","published-online":{"date-parts":[[2023,12,14]]},"reference":[{"key":"pone.0295895.ref001","doi-asserted-by":"crossref","first-page":"e0215182","DOI":"10.1371\/journal.pone.0215182","article-title":"Relationship between living alone and common mental disorders in the 1993, 2000 and 2007 National Psychiatric Morbidity Surveys.","volume":"14","author":"L Jacob","year":"2019","journal-title":"PLoS One"},{"key":"pone.0295895.ref002","author":"Organization for Economic Co-Operation and Development (OECD).","year":"2011"},{"key":"pone.0295895.ref003","article-title":"[Single household status in 2020 population and housing census","author":"Statistics Korea","year":"2020"},{"key":"pone.0295895.ref004","author":"Statistics Korea","year":"2020","journal-title":"[Single households of statistics 2020]"},{"key":"pone.0295895.ref005","doi-asserted-by":"crossref","first-page":"e2017034","DOI":"10.4178\/epih.e2017034","article-title":"Effects of living alone versus with others and of housemate type on smoking, drinking, dietary habits, and physical activity among elderly people.","volume":"39","author":"S Jeong","year":"2017","journal-title":"Epidemiol Health."},{"key":"pone.0295895.ref006","doi-asserted-by":"crossref","first-page":"260","DOI":"10.1111\/hsc.12648","article-title":"Older people living alone in Shanghai: A questionnaire survey of their life experience.","volume":"27","author":"Y Chen","year":"2019","journal-title":"Health Soc Care Community"},{"key":"pone.0295895.ref007","doi-asserted-by":"crossref","first-page":"1111","DOI":"10.1017\/S0144686X16000374","article-title":"Living arrangement and cognitive decline among older people in Europe.","volume":"37","author":"S Mazzuco","year":"2017","journal-title":"Ageing Soc"},{"key":"pone.0295895.ref008","doi-asserted-by":"crossref","first-page":"667","DOI":"10.21215\/kjfp.2017.7.5.667","article-title":"Health behaviors and mental health of Korean young adults from single households: Data analysis from the 5th Korea National Health and Nutrition Examination Survey (2010\u20132012).","volume":"7","author":"A Kim","year":"2017","journal-title":"Korean J Fam Pract"},{"key":"pone.0295895.ref009","doi-asserted-by":"crossref","first-page":"2809","DOI":"10.1007\/s11136-014-0726-4","article-title":"Assessing the validity of single-item life satisfaction measures: Results from three large samples.","volume":"23","author":"F Cheung","year":"2014","journal-title":"Qual Life Res"},{"issue":"1","key":"pone.0295895.ref010","first-page":"17","article-title":"An integrative approach to quality of life measurement, research, and policy.","volume":"1","author":"R Costanza","year":"2008","journal-title":"Sapiens"},{"key":"pone.0295895.ref011","doi-asserted-by":"crossref","first-page":"201","DOI":"10.1186\/s12955-015-0398-y","article-title":"Factors associated with the life satisfaction amongst the rural elderly in Odisha, India.","volume":"13","author":"P Banjare","year":"2015","journal-title":"Health Qual Life Outcomes"},{"issue":"4","key":"pone.0295895.ref012","doi-asserted-by":"crossref","first-page":"953","DOI":"10.1007\/s11482-019-09714-3","article-title":"Can money buy happiness? 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