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Cui M, Jiao D, Liu Y, Zhu Y, Li X, Zhu Z, Zhang J, Alpona AB, Wang Y, Qian M, Sawada Y, Miura KW, Watanabe T, Tanaka E, Anme T. Longitudinal assessment of the relationship between frailty and social relationships among Japanese older adults: a random intercept cross-lagged panel model. BMC Public Health 2024; 24:706. [PMID: 38443887 PMCID: PMC10916186 DOI: 10.1186/s12889-024-18234-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 02/28/2024] [Indexed: 03/07/2024] Open
Abstract
OBJECTIVES This study aimed to explore the bidirectional association between frailty and social relationships in older adults while distinguishing between interpersonal and intrapersonal effects. METHODS A prospective cohort study of community-dwelling older adults was conducted in Japan in three waves spanning six years with follow-ups in every three years. Random intercept cross-lagged panel model was used to explore temporal associations between frailty and social relationships. RESULTS Data for 520 participants (mean age 73.02 [SD 6.38] years, 56.7% women) were analyzed. Across individuals, frailty was associated with social relationships (β = -0.514, p < 0.001). At the interpersonal level, frailty was cross-sectionally associated with social relationships separately at T1(β = -0.389, p < 0.01), T2 (β = -0.343, p < 0.001) and T3 (β = -0.273, p < 0.05). Moreover, social relationships were associated with subsequent increases in symptoms of frailty in all measurement waves (β = -0.332, p < 0.001; β = -0.169, p < 0.01) and vice versa (β = -0.149, p < 0.05; β = -0.292, p < 0.001). CONCLUSIONS The results suggest that frailty was associated with lower levels of social relationships. Frailty improvement programs can be combined with interventions to enhance social relationships, which will be beneficial in preventing frailty. The results emphasize the importance of combining clinical treatments of frailty with interventions to improve social relationships.
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Affiliation(s)
- Mingyu Cui
- School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
| | - Dandan Jiao
- School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
- Department of Nursing, The First Affiliated Hospital, and College of Clinical Medicine, Henan University of Science and Technology, Luoyang, China
| | - Yang Liu
- School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
| | - Yantong Zhu
- School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
| | - Xiang Li
- School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
| | - Zhu Zhu
- School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
| | - Jinrui Zhang
- School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
| | - Afsari Banu Alpona
- School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
| | - Yanlin Wang
- School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
| | - Meiling Qian
- School of Comprehensive Human Science, University of Tsukuba, Tsukuba, Japan
| | - Yuko Sawada
- Department of Physical Therapy, Morinomiya University of Medical Sciences, Osaka, Japan
| | | | | | - Emiko Tanaka
- Faculty of Nursing, Musashino University, Tokyo, Japan
| | - Tokie Anme
- Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
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Du C, Katz B, Shrestha P, Hori K, Dave G. Health Care Access and Cognitive Function in Older Adults: A Cross-Lagged Panel Longitudinal Analysis. J Appl Gerontol 2024:7334648241230015. [PMID: 38321751 DOI: 10.1177/07334648241230015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024] Open
Abstract
Objective: The current longitudinal study examined how (1) cognitive measures, including episodic memory, executive function, and global cognition, predict later healthcare access and how (2) healthcare access predicts later cognition. Methods: Drawing a sample (n = 9920) from the Health and Retirement Study dataset, we created a cross-lagged panel model to examine the longitudinal association between cognitive measures and healthcare access from 2012 to 2018. Results: Results revealed that cognitive measures significantly predict later healthcare access, with effects increasing across waves. However, within sub-domains, memory was more predictive of later healthcare access over time compared to executive function. Discussions: Our study suggested an increased link between cognition and healthcare access during aging. Even outside of the context of AD, there are likely both policy-based and practical implications to ensure those experiencing cognitive decline continue to maintain access to care.
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Affiliation(s)
- Chenguang Du
- University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Benjamin Katz
- Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | | | - Kazuki Hori
- Benesse Educational Research and Development Institute, Tokyo, Japan
| | - Gaurav Dave
- University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Malatyali A, Sagna De Main A, Cidav T, Komalasari R, Xie R, Thiamwong L. Health Disparities in Cognitive Impairment and Dementia: Role of Social Strain, Depression, and C-Reactive Protein. Gerontol Geriatr Med 2023; 9:23337214231215274. [PMID: 38035262 PMCID: PMC10683383 DOI: 10.1177/23337214231215274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/08/2023] [Accepted: 10/27/2023] [Indexed: 12/02/2023] Open
Abstract
We investigated the association of social strain from friends, depression, and systemic inflammation (C-Reactive Protein [CRP]) with cognitive impairment without dementia (CIND) and dementia among 9,262 participants (age ≥ 65). We analyzed data from the Health Retirement Study (HRS), performing Chi-squared and logistic regression analyses. Measures included the 27-point HRS cognition scale, social strain scale, Center for Epidemiological Studies Depression scale, and dried-blood CRP levels. Black and Hispanic participants had a significantly increased dementia risk (OR = 2.69 and OR = 2.54). Black participants also had a high risk of CIND (OR = 2.80), but no association of Hispanic participants with CIND. Increased social strain from friends and depression were significantly associated with CIND (OR = 1.50 and OR = 1.44) and dementia (OR = 1.57 and OR = 1.78). Elevated CRP levels were only linked to CIND risk (OR = 1.03), not dementia. Early detection and interventions targeting social strain, depression, and CRP levels may help promote cognitive functioning in older adults.
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Affiliation(s)
| | | | - Tom Cidav
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | - Rui Xie
- University of Central Florida, Orlando, USA
| | - Ladda Thiamwong
- University of Central Florida, Orlando, USA
- University of Central Florida, Orlando, USA
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