The Effect of Cognitive Impairment on the Association Between Social Network Properties and Mortality Among Older Korean Adults

Objectives: This study investigated the effect of cognitive impairment on the association between social network properties and mortality among older Korean adults. Methods: This study used data from the Korean Social Life, Health, and Aging Project. It obtained 814 older adults’ complete network ma...

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Main Authors: Eunji Kim, Kiho Sung, Chang Oh Kim, Yoosik Youm, Hyeon Chang Kim
Format: Article
Language:English
Published: Korean Society for Preventive Medicine 2023-01-01
Series:Journal of Preventive Medicine and Public Health
Subjects:
Online Access:http://jpmph.org/upload/pdf/jpmph-22-350.pdf
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author Eunji Kim
Kiho Sung
Chang Oh Kim
Yoosik Youm
Hyeon Chang Kim
author_facet Eunji Kim
Kiho Sung
Chang Oh Kim
Yoosik Youm
Hyeon Chang Kim
author_sort Eunji Kim
collection DOAJ
description Objectives: This study investigated the effect of cognitive impairment on the association between social network properties and mortality among older Korean adults. Methods: This study used data from the Korean Social Life, Health, and Aging Project. It obtained 814 older adults’ complete network maps across an entire village in 2011-2012. Participants’ deaths until December 31, 2020 were confirmed by cause-of-death statistics. A Cox proportional hazards model was used to assess the risks of poor social network properties (low degree centrality, perceived loneliness, social non-participation, group-level segregation, and lack of support) on mortality according to cognitive impairment. Results: In total, 675 participants (5510.4 person-years) were analyzed, excluding those with missing data and those whose deaths could not be verified. Along with cognitive impairment, all social network properties except loneliness were independently associated with mortality. When stratified by cognitive function, some variables indicating poor social relations had higher risks among older adults with cognitive impairment, with adjusted hazard ratios (HRs) of 2.12 (95% confidence interval [CI], 1.34 to 3.35) for social non-participation, 1.58 (95% CI, 0.94 to 2.65) for group-level segregation, and 3.44 (95% CI, 1.55 to 7.60) for lack of support. On the contrary, these effects were not observed among those with normal cognition, with adjusted HRs of 0.73 (95% CI, 0.31 to 1.71), 0.96 (95% CI, 0.42 to 2.21), and 0.95 (95% CI, 0.23 to 3.96), respectively. Conclusions: The effect of social network properties was more critical among the elderly with cognitive impairment. Older adults with poor cognitive function are particularly encouraged to participate in social activities to reduce the risk of mortality.
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spelling doaj.art-36d1275aca544fe6a75b69fb79b778d42023-04-17T04:20:23ZengKorean Society for Preventive MedicineJournal of Preventive Medicine and Public Health1975-83752233-45212023-01-01561314010.3961/jpmph.22.3502256The Effect of Cognitive Impairment on the Association Between Social Network Properties and Mortality Among Older Korean AdultsEunji Kim0Kiho Sung1Chang Oh Kim2Yoosik Youm3Hyeon Chang Kim4 Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea Department of Sociology, Yonsei University Graduate School, Seoul, Korea Division of Geriatrics, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea Department of Sociology, Yonsei University Graduate School, Seoul, Korea Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, KoreaObjectives: This study investigated the effect of cognitive impairment on the association between social network properties and mortality among older Korean adults. Methods: This study used data from the Korean Social Life, Health, and Aging Project. It obtained 814 older adults’ complete network maps across an entire village in 2011-2012. Participants’ deaths until December 31, 2020 were confirmed by cause-of-death statistics. A Cox proportional hazards model was used to assess the risks of poor social network properties (low degree centrality, perceived loneliness, social non-participation, group-level segregation, and lack of support) on mortality according to cognitive impairment. Results: In total, 675 participants (5510.4 person-years) were analyzed, excluding those with missing data and those whose deaths could not be verified. Along with cognitive impairment, all social network properties except loneliness were independently associated with mortality. When stratified by cognitive function, some variables indicating poor social relations had higher risks among older adults with cognitive impairment, with adjusted hazard ratios (HRs) of 2.12 (95% confidence interval [CI], 1.34 to 3.35) for social non-participation, 1.58 (95% CI, 0.94 to 2.65) for group-level segregation, and 3.44 (95% CI, 1.55 to 7.60) for lack of support. On the contrary, these effects were not observed among those with normal cognition, with adjusted HRs of 0.73 (95% CI, 0.31 to 1.71), 0.96 (95% CI, 0.42 to 2.21), and 0.95 (95% CI, 0.23 to 3.96), respectively. Conclusions: The effect of social network properties was more critical among the elderly with cognitive impairment. Older adults with poor cognitive function are particularly encouraged to participate in social activities to reduce the risk of mortality.http://jpmph.org/upload/pdf/jpmph-22-350.pdfinterpersonal relationssocial networkingsocial isolationcognitive dysfunctionmortality
spellingShingle Eunji Kim
Kiho Sung
Chang Oh Kim
Yoosik Youm
Hyeon Chang Kim
The Effect of Cognitive Impairment on the Association Between Social Network Properties and Mortality Among Older Korean Adults
Journal of Preventive Medicine and Public Health
interpersonal relations
social networking
social isolation
cognitive dysfunction
mortality
title The Effect of Cognitive Impairment on the Association Between Social Network Properties and Mortality Among Older Korean Adults
title_full The Effect of Cognitive Impairment on the Association Between Social Network Properties and Mortality Among Older Korean Adults
title_fullStr The Effect of Cognitive Impairment on the Association Between Social Network Properties and Mortality Among Older Korean Adults
title_full_unstemmed The Effect of Cognitive Impairment on the Association Between Social Network Properties and Mortality Among Older Korean Adults
title_short The Effect of Cognitive Impairment on the Association Between Social Network Properties and Mortality Among Older Korean Adults
title_sort effect of cognitive impairment on the association between social network properties and mortality among older korean adults
topic interpersonal relations
social networking
social isolation
cognitive dysfunction
mortality
url http://jpmph.org/upload/pdf/jpmph-22-350.pdf
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