Longitudinal associations between daytime napping and cognitive function in Chinese older adults

纵向研究 认知 联想(心理学) 心理学 情景记忆 白天 横断面研究 睡眠剥夺对认知功能的影响 老年学 医学 临床心理学 精神科 大气科学 地质学 病理 心理治疗师
作者
Lijuan Zhang,Chen Chen,Hong Zhang,Bin Peng
出处
期刊:Archives of Gerontology and Geriatrics [Elsevier BV]
卷期号:107: 104909-104909 被引量:9
标识
DOI:10.1016/j.archger.2022.104909
摘要

Little was known about the longitudinal associations between daytime napping and cognitive function in China. Thus, the study aimed to explore the cross-sectional and the longitudinal relationship between daytime napping and cognitive performance in the elderly Chinese population.The data was from the China Health and Retirement Longitudinal Study (CHARLS). Daytime napping was self-reported. Cognitive function was assessed via a structured questionnaire in two dimensions: episodic memory and mental status. Linear regression and mixed-effect model were applied to explore the association between daytime napping and cognitive function.A total of 2,875 and 2,440 participants aged over 65 years were included in the cross-sectional and the longitudinal studies, respectively. In the cross-sectional study, non-nappers and extended nappers had significantly lower global cognition scores (P<0.01), as well as significantly lower scores for episodic memory (P<0.05) and mental status (P<0.01), compared with moderate nappers. In the longitudinal analysis, no napping and extended napping were significantly associated with global cognitive decline (P<0.05) and only extended napping showed the significant association for the decline in episodic memory as well as mental status (P<0.01).Daytime napping duration was self-reported by participants.The study found a longitudinal association between extended napping duration and worse cognitive function.
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