ArticlePloS one2025
Association between midday napping and long-term trajectories of cognitive function among middle-aged and older Chinese adults.
Article in PloS one, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Sleep patterns and impaired cognitive function in adults aged ≥ 55 years: a longitudinal study in China.BMC public health · 2026Article
- Article
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Authors and funding
5 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe prevalence of dementia has become an increasingly important public health priority. This study investigated the association between midday napping and long-term trajectories of cognitive function in middle-aged and older Chinese adults.
methodsAmong 4648 participants aged 45+ years extracted from the China Health and Retirement Longitudinal Study (CHARLS). The components of the Telephone Interview of Cognitive Status battery (TICS-10) was used to assess cognitive function. Group-based trajectory modelling (GBTM) was used to identify long-term trajectories of cognitive function. Multinomial logistic regression model was used to estimate risk ratios (RRs) and 95% confidence intervals (CIs).
resultsThree distinct long-term trajectories of cognitive function reflected patterns of rapid decline, slow decline, and stable. The RR (95% CI) for rapid decline was 1.45 (1.05-2.01) for 0 minutes, 1.49 (1.05-2.12) for 31-90 minutes, and 2.19 (1.41-3.42) for >90 minutes compared with midday napping 1-30 minutes. The RR (95% CI) for slow decline was 1.22 (1.02-1.47) for 0 minutes, 1.27 (1.04-1.55) for 31-90 minutes, and 1.80 (1.38-2.35) for >90 minutes compared with midday napping 1-30 minutes. In addition, the increased risk of cognitive decline that transferred from >90 to 31-90 minutes, switched from 31-90 to >90 minutes, and persisted in >90 minutes compared with midday napping 1-30 minutes, especially rapid decline.
conclusionsThere was a longitudinal association between no and long (>30 minutes) midday napping and long-term trajectories of cognitive decline, especially rapid decline. The study is a 4-year observational in nature and provides limited evidence for establishing causal relationships.
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