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. 2024 Mar 1;53(3):afae054.
doi: 10.1093/ageing/afae054.

Pain trajectories and their associations with cognition among older adults: a 10-year cohort study from network perspective

He-Li Sun  1   2 , Wei Bai  3 , Pan Chen  1   2 , Ling Zhang  4 , Robert D Smith  1 , Zhaohui Su  5 , Teris Cheung  6 , Gabor S Ungvari  7   8 , Chee H Ng  9 , Qinge Zhang  4 , Yu-Tao Xiang  1   2
Affiliations

Pain trajectories and their associations with cognition among older adults: a 10-year cohort study from network perspective

He-Li Sun et al. Age Ageing. .

Abstract

Background: Few studies have examined the associations between pain trajectories and cognitive function in older adults. This study explored the associations between pain trajectories and different cognitive domains in older adults from a network perspective.

Methods: Data on pain trajectories were derived from the Health and Retirement Study between 2010 and 2020 using latent class growth analyses. Measurements of key cognition domains, including memory, attention, calculation, orientation and language, were included. Linear regression and network analysis were performed to evaluate the associations between different pain trajectories and cognition.

Results: A total of 9,551 older adults were included in this study and three trajectories of pain were identified. After controlling for the covariates, persistent severe pain trajectory was associated with poorer overall cognition, memory and calculation ability when compared to mild or non-persistent pain trajectory. In the pain and cognition network model, memory (expected influence (EI) = 0.62), language (EI = 0.58) and calculation (EI = 0.41) were the most central domains.

Conclusions: Pain trajectories appeared stable over time among older adults in this study. Severity of persistent pain was an important risk factor for poor cognition, especially in relation to memory and calculation domains. Interventions targeting memory, language and calculation domains might be useful in addressing cognitive decline in older adults with persistent pain.

Keywords: cognitive function; older people; pain; pain trajectory; persistent pain.

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Conflict of interest statement

None.

Figures

Figure 1
Figure 1
Trajectories of pain in older adults. Each colour represents a type of pain trajectory.
Figure 2
Figure 2
Network analysis of pain and cognition domains in older adults (primary network analysis).
See this image and copyright information in PMC

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