| Home | E-Submission | Sitemap | Contact Us |  
top_img

The effect of cognitive impairment on the association between social network properties and mortality among older Korean adults
Eunji Kim1 , Kiho Sung2 , Chang Oh Kim3 , Yoosik Youm2 , Hyeon Chang Kim1,4
1Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Korea
2Department of Sociology, Yonsei University Graduate School, Seoul, Korea
3Division of Geriatrics, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
4Department of Public Health, Yonsei University Graduate School, Seoul, Korea
Corresponding Author: Hyeon Chang Kim ,Email: hckim@yuhs.ac
Received: August 10, 2022;  Accepted: October 21, 2022.
ABSTRACT
Objectives:
This study investigated the effect of cognitive impairment on the association between social network properties and mortality among older Korean adults.
Method:
This study used data from the Korean Social Life, Health, and Aging Project (KSHAP). 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 nonparticipation, 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 of 2.12 (95% confidence interval [CI], 1.34-3.35) for social nonparticipation, 1.58 (95% CI, 0.94-2.65) for group-level segregation, and 3.44 (95% CI, 1.55-7.60) 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, 0.31-1.71), 0.96 (95% CI, 0.42-2.21), and 0.95 (95% CI, 0.23-3.96), 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.
Key words: Social Relationship; Complete social network; Group-level segregation; Cognitive Dysfunction; Mortality
Editorial Office
#203, 92 Wangsan-ro, Dongdaemun-gu, Seoul 02585, Korea
Tel : +82-2-740-8328   Fax : +82-2-764-8328   E-mail: jpmph@prevmed.or.kr
About |  Browse Articles |  Current Issue |  For Authors and Reviewers
Copyright © 2022 by Korean Society for Preventive Medicine.                 Developed in M2PI