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Trajectories of cognitive function and their determinants in older people: 12 years of follow-up in the Chinese Longitudinal Healthy Longevity Survey.

Publication ,  Journal Article
Tu, L; Lv, X; Yuan, C; Zhang, M; Fan, Z; Xu, X; Zeng, Y; Yu, X; Wang, H
Published in: Int Psychogeriatr
June 2020

BACKGROUND: Cognitive decline in advanced age is closely related to dementia. The trajectory of cognitive function in older Chinese is yet to be fully investigated. We aimed to investigate the trajectories of cognitive function in a nationally representative sample of older people living in China and to explore the potential determinants of these trajectories. METHODS: This study included 2,038 cognitively healthy persons aged 65-104 years at their first observation in the Chinese Longitudinal Healthy Longevity Survey from 2002 to 2014. Cognitive function was measured using the Chinese version of the Mini-Mental State Examination (MMSE). Group-based trajectory modeling was used to identify potential heterogeneity of longitudinal changes over the 12 years and to investigate associations between baseline predictors of group membership and these trajectories. RESULTS: Three trajectories were identified according to the following types of changes in MMSE scores: slow decline (14.0%), rapid decline (4.5%), and stable function (81.5%). Older age, female gender, having no schooling, a low frequency of leisure activity, and a low baseline MMSE score were associated with the slow decline trajectory. Older age, body mass index (BMI) less than 18.5 kg/m2, and having more than one cardiovascular disease (CVD) were associated with the rapid decline trajectory. CONCLUSION: Three trajectories of cognitive function were identified in the older Chinese population. The identified determinants of these trajectories could be targeted for developing prevention and intervention strategies for dementia.

Duke Scholars

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Published In

Int Psychogeriatr

DOI

EISSN

1741-203X

Publication Date

June 2020

Volume

32

Issue

6

Start / End Page

765 / 775

Location

England

Related Subject Headings

  • Male
  • Longitudinal Studies
  • Longevity
  • Humans
  • Healthy Lifestyle
  • Health Status
  • Geriatrics
  • Follow-Up Studies
  • Female
  • Cognition
 

Citation

APA
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ICMJE
MLA
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Tu, L., Lv, X., Yuan, C., Zhang, M., Fan, Z., Xu, X., … Wang, H. (2020). Trajectories of cognitive function and their determinants in older people: 12 years of follow-up in the Chinese Longitudinal Healthy Longevity Survey. Int Psychogeriatr, 32(6), 765–775. https://doi.org/10.1017/S1041610220000538
Tu, Lihui, Xiaozhen Lv, Changzheng Yuan, Ming Zhang, Zili Fan, Xiaolin Xu, Yi Zeng, Xin Yu, and Huali Wang. “Trajectories of cognitive function and their determinants in older people: 12 years of follow-up in the Chinese Longitudinal Healthy Longevity Survey.Int Psychogeriatr 32, no. 6 (June 2020): 765–75. https://doi.org/10.1017/S1041610220000538.
Tu, Lihui, et al. “Trajectories of cognitive function and their determinants in older people: 12 years of follow-up in the Chinese Longitudinal Healthy Longevity Survey.Int Psychogeriatr, vol. 32, no. 6, June 2020, pp. 765–75. Pubmed, doi:10.1017/S1041610220000538.
Tu L, Lv X, Yuan C, Zhang M, Fan Z, Xu X, Zeng Y, Yu X, Wang H. Trajectories of cognitive function and their determinants in older people: 12 years of follow-up in the Chinese Longitudinal Healthy Longevity Survey. Int Psychogeriatr. 2020 Jun;32(6):765–775.
Journal cover image

Published In

Int Psychogeriatr

DOI

EISSN

1741-203X

Publication Date

June 2020

Volume

32

Issue

6

Start / End Page

765 / 775

Location

England

Related Subject Headings

  • Male
  • Longitudinal Studies
  • Longevity
  • Humans
  • Healthy Lifestyle
  • Health Status
  • Geriatrics
  • Follow-Up Studies
  • Female
  • Cognition