Association between depression tendency and cognitive trajectory in the elderly in rural area in China.
10.3760/cma.j.cn112338-20220415-00302
- Author:
Yao Feng HAN
1
;
Yu Ting YANG
1
;
Ya FANG
1
Author Information
1. School of Public Health, Xiamen University, Xiamen 361102, China Key Laboratory of Health Technology Assessment of Fujian Province, Xiamen 361102, China.
- Publication Type:Journal Article
- MeSH:
Aged;
China/epidemiology*;
Cognition;
Cognition Disorders;
Depression/epidemiology*;
Humans;
Longitudinal Studies
- From:
Chinese Journal of Epidemiology
2022;43(9):1491-1496
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To explore cognitive trajectory and its association with depression tendency in the elderly in rural area in China. Methods: Based on the data of the rural elderly aged ≥65 years in the Chinese Longitudinal Healthy Longevity Survey (CLHLS) from 2011 to 2018, unconditional and conditional latent variable growth curve models were constructed to analyze the mini-mental state examination (MMSE) score trajectory and its association with depression tendency in the elderly. Results: A total of 1 788 elderly persons were included, and 19.1% of them had a depression tendency. The average MMSE score of those with and without a depression tendency at baseline survey were 26.62±3.54 and 27.59±3.17 respectively. The rate of MMSE score decline was 0.52 points (P<0.05). Before and after controlling covariates, the initial score was 0.84 points lower (P<0.05) and 0.81 points lower (P<0.05) in those with depressive tendency than in those without depressive tendency respectively, furthermore, the decline rate of MMSE score was 0.33 points lower (P<0.05) and 0.40 points lower (P<0.05) in those with depressive tendency than in those without respectively. Conclusions: The depression tendency in the elderly in rural area in China was associated with the cognitive function change trajectory, with those with depression tendency had lower-level trajectory. Attention should be paid to the mental health of the elderly in rural area to prevent dementia and slow its development.
