Residential blue space, cognitive function, and the role of air pollution in middle-aged and older adults: A cross-sectional study based on UK biobank.

IF 6.2 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Ecotoxicology and Environmental Safety Pub Date : 2024-11-19 DOI:10.1016/j.ecoenv.2024.117355
Kaitai Yang, Fabin Lin, Xuefei Wang, Huaicheng Wang, Yisen Shi, Lina Chen, Yanhong Weng, Xuanjie Chen, Yuqi Zeng, Yinqing Wang, Guoen Cai
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Abstract

This study examines the relationship between residential exposure to blue spaces (e.g., rivers, lakes, and seas) and cognitive function in middle-aged and older adults in the United Kingdom, with a specific focus on the mediating effects of air pollution, particularly nitrogen dioxide (NO₂) and fine particulate matter (PM2.5). Cognitive function was assessed using touch screens at UK Biobank Assessment Centre, while residential blue space exposure within a 300-meter radius was estimated from land-use data. Annual average levels of air pollution, specifically NO₂ and PM2.5, were calculated through a land-use regression model. Logistic regression models analyzed the association between blue space exposure and cognitive function, and restricted cubic splines were employed to assess potential nonlinear relationships. Causal mediation analysis quantified the indirect effects of air pollution on this relationship. The study included 35,669 participants, revealing that high blue space exposure (≥75 %) was associated with a 13.2 % lower risk of cognitive impairment compared to those with low exposure (<25 %). Notably, NO₂ and PM2.5 significantly mediated this association, with indirect effects estimated at 9.5 % and 15.85 %, respectively. These findings indicate that increased residential exposure to blue spaces is linked to a reduced risk of cognitive impairment, highlighting the protective role of blue environments in the context of air pollution. This research underscores the importance of environmentally sensitive urban planning and policies to promote public health and cognitive well-being among vulnerable populations.

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中老年人的居住蓝地、认知功能和空气污染的作用:基于英国生物数据库的横断面研究。
本研究探讨了英国中老年人的蓝色空间(如河流、湖泊和海洋)居住暴露与认知功能之间的关系,特别关注空气污染,尤其是二氧化氮(NO₂)和细颗粒物(PM2.5)的中介效应。认知功能是通过英国生物库评估中心的触摸屏进行评估的,而半径 300 米范围内的住宅蓝天暴露则是通过土地利用数据估算的。空气污染的年平均水平,特别是 NO₂ 和 PM2.5,是通过土地利用回归模型计算得出的。逻辑回归模型分析了蓝色空间暴露与认知功能之间的关系,并采用限制性三次样条来评估潜在的非线性关系。因果中介分析量化了空气污染对这种关系的间接影响。这项研究包括 35,669 名参与者,结果显示,与低暴露量的人相比,高蓝色空间暴露量(≥75%)的人患认知障碍的风险要低 13.2%(2.5 显著介导了这种关联,间接效应估计分别为 9.5% 和 15.85%)。这些研究结果表明,增加居住地的蓝色空间暴露与降低认知障碍的风险有关,突出了蓝色环境在空气污染中的保护作用。这项研究强调了对环境敏感的城市规划和政策对促进公共健康和弱势群体认知健康的重要性。
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来源期刊
CiteScore
12.10
自引率
5.90%
发文量
1234
审稿时长
88 days
期刊介绍: Ecotoxicology and Environmental Safety is a multi-disciplinary journal that focuses on understanding the exposure and effects of environmental contamination on organisms including human health. The scope of the journal covers three main themes. The topics within these themes, indicated below, include (but are not limited to) the following: Ecotoxicology、Environmental Chemistry、Environmental Safety etc.
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