Disability trajectories and their association with cognition in older adults: a network analysis based on 7⁃year CHARLS longitudinal data
Abstract
ObjectiveTo explore disability trajectories in Chinese older adults and their association with cognitive changes,so as to identify core areas of cognitive impairment in disabled older adults and to provide intervention targets and empirical evidence for the joint prevention and control of disability and cognitive decline.MethodsBased on data from the China Health and Retirement Longitudinal Study(CHARLS) from 2011 to 2018,a total of 2,276 older adults were included. Information on basic demographics,physical function,and cognitive function was collected.Trajectory fitting and network analysis were performed using R 4.5.1 and Mplus 8.3.ResultsTwo disability trajectories were identified:low⁃function⁃decline group(n=227) and high⁃function⁃maintenance group(n=2 049).Regression analysis showed that after adjusting for confounders,disability trajectory was associated with cognitive function[OR=1.06,95%CI(1.03,1.09)].Network analysis revealed that compared with the high⁃function⁃maintenance group,the low⁃function⁃decline group performed worse in the domains of calculation(EI=0.707) and memory(EI=0.699).ConclusionsTwo disability trajectories exist in Chinese older adults:low⁃function⁃decline and high⁃function⁃maintenance.Low⁃function⁃decline may exacerbate impairments in calculation and memory.It is recommended to strengthen the assessment of calculation and memory in disabled older adults,and to develop health management strategies integrating disability and cognitive decline prevention,so as to reduce the risk of disability in older adults.
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BibTeX
@article{yun2026disability,
title = {{Disability trajectories and their association with cognition in older adults: a network analysis based on 7⁃year CHARLS longitudinal data}},
author = {DU Yun and YANG Ziyue and HUANG Zhanqiang and SI Mingshu and GUO Yufang},
journal = {Huli yanjiu},
year = {2026},
month = oct,
url = {http://hlyj.suo1.cn/thesisDetails#10.12102/j.issn.1009-6493.2026.21.002},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Disability trajectories and their association with cognition in older adults: a network analysis based on 7⁃year CHARLS longitudinal data
AU - DU Yun
AU - YANG Ziyue
AU - HUANG Zhanqiang
AU - SI Mingshu
AU - GUO Yufang
PY - 2026
DA - 2026/10/30
JO - Huli yanjiu
UR - http://hlyj.suo1.cn/thesisDetails#10.12102/j.issn.1009-6493.2026.21.002
AB - ObjectiveTo explore disability trajectories in Chinese older adults and their association with cognitive changes,so as to identify core areas of cognitive impairment in disabled older adults and to provide intervention targets and empirical evidence for the joint prevention and control of disability and cognitive decline.MethodsBased on data from the China Health and Retirement Longitudinal Study(CHARLS) from 2011 to 2018,a total of 2,276 older adults were included. Information on basic demographics,physical function,and cognitive function was collected.Trajectory fitting and network analysis were performed using R 4.5.1 and Mplus 8.3.ResultsTwo disability trajectories were identified:low⁃function⁃decline group(n=227) and high⁃function⁃maintenance group(n=2 049).Regression analysis showed that after adjusting for confounders,disability trajectory was associated with cognitive function[OR=1.06,95%CI(1.03,1.09)].Network analysis revealed that compared with the high⁃function⁃maintenance group,the low⁃function⁃decline group performed worse in the domains of calculation(EI=0.707) and memory(EI=0.699).ConclusionsTwo disability trajectories exist in Chinese older adults:low⁃function⁃decline and high⁃function⁃maintenance.Low⁃function⁃decline may exacerbate impairments in calculation and memory.It is recommended to strengthen the assessment of calculation and memory in disabled older adults,and to develop health management strategies integrating disability and cognitive decline prevention,so as to reduce the risk of disability in older adults.
SN - 1009-6493
ER -