Associations between sensory impairment and functional limitations among older Chinese adults: mediating roles of social isolation and cognition.
BMC Geriatr
; 24(1): 797, 2024 Sep 30.
Article
in En
| MEDLINE
| ID: mdl-39350094
ABSTRACT
BACKGROUND:
The high prevalence of sensory impairment and functional limitations in older adults is a significant concern, yet there is limited understanding of the relationship between these two conditions. Therefore, the objective of this study was to investigate the pathways connecting sensory impairment and functional limitations by examining serial multiple mediating effects of social isolation and cognition in older adults.METHODS:
Using the China Health and Retirement Longitudinal Study dataset, a sample of 4871 older adults was selected. The study variables included sensory impairment, functional limitations, social isolation and cognition, and other covariates. A hierarchical multiple linear regression model was used to assess the association between sensory impairment and functional limitations. Mediation analysis was conducted to explore the sequential multiple mediating effects of social isolation and cognitive function in the relationship between sensory impairment and functional limitations.RESULTS:
Our findings revealed a significant and positive association between sensory impairment and functional limitations (B = 0.615, 95% CI 0.397, 0.834). After adjusting for social isolation and cognitive function, the impact of sensory impairment on functional limitations accounted for 87.19% of the total effect. Additionally, approximately 12.81% of the significant relationship between dual sensory impairment and functional limitations was mediated by social isolation and cognitive function. A serial multiple mediating pathway (sensory impairment â social isolation â cognition â functional limitations) was identified, with a coefficient of 0.013 (95% CI 0.006, 0.020).CONCLUSIONS:
Our study provides evidence for the mediating effects of social isolation and cognition in the relationship between sensory impairment and functional limitations. Given the prevalence of functional limitations among older adults with sensory impairment, it is crucial to consider social isolation and cognitive function in efforts to reduce the burden of disability care. Future validation of these findings through longitudinal studies is necessary.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Social Isolation
/
Cognition
Limits:
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Country/Region as subject:
Asia
Language:
En
Journal:
BMC Geriatr
/
BMC geriatr. (Online)
/
BMC geriatrics (Online)
Journal subject:
GERIATRIA
Year:
2024
Document type:
Article
Affiliation country:
China
Country of publication:
United kingdom