基于中国老年人队列的认知障碍、教育程度与死亡风险的关联研究

doi:10.3969/j.issn.1006-5253.2023.03.002

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Abstract Objective To explore the association of cognition impairment with education status and mortality among the Chinese elderly and to provide recommendations for cognitive management of the Chinese elderly.Methods The study population was from the elderly aged 65 and above in the Chinese longitudinal healthy longevity survey (CLHLS) in 2005 and 2008. The traditional Cox proportional hazard model and additive Cox proportional hazard model were used to estimate the associations of cognitive impairment with education status and all-cause mortality. Data analysis included univariable analysis, stratified analysis and interaction analysis. The additive Cox proportional hazard model results were presented in the form of images.Results Among 15 860 eligible participants included in the study, 11 044 died during follow-up. The results showed that cognitive impairment would increase the mortality risk of the elderly (HR=1.32, 95%CI:1.26-1.39). And after stratified by education status, the hazardous effects diminished as education status decreased (years of schooling >6 years HR=1.47, 95%CI: 1.08-2.00; years of schooling 1-6 years HR=1.44, 95%CI: 1.26-1.63; years of schooling 0 year HR=1.32, 95%CI:1.25-1.39). In addition, the association of education status and mortality was inconsistent across cognitively diverse populations. The protective effect of education status on mortality was observed among the people with normal cognitive function (HR=0.83, 95%CI: 0.77-0.91) but not observed among the people with cognitive impairment (HR=1.09, 95%CI: 0.81-1.47).Conclusion It is suggested that the community health centers should manage the cognitive function of the elderly according to their education status.

Key words： cognitive impairment education status elderly cohort mortality

Received: 16 February 2023

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	Wu Jingyi
	Deng Wei
	Yu Yongfu

Cite this article:

Wu Jingyi,Deng Wei,Yu Yongfu.

Associations of cognitive impairment with education status and mortality risk based on a Chinese elderly cohort

[J]. journal1, 2023, 30(3): 166-172.

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http://manu58.magtech.com.cn/Jwk_zgyytj/EN/10.3969/j.issn.1006-5253.2023.03.002 OR http://manu58.magtech.com.cn/Jwk_zgyytj/EN/Y2023/V30/I3/166

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