Interaction between walkability and fine particulate matter on ischemic heart disease: A prospective cohort study in China.

IF 6.2 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Ecotoxicology and Environmental Safety Pub Date : 2024-12-13 DOI:10.1016/j.ecoenv.2024.117520

Jiayun Zhang, Peng Shen, Yixing Wang, Zihan Li, Lisha Xu, Jie Qiu, Jingjing Hu, Zongming Yang, Yonghao Wu, Zhanghang Zhu, Hongbo Lin, Zhiqin Jiang, Liming Shui, Mengling Tang, Mingjuan Jin, Feng Tong, Kun Chen, Jianbing Wang

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引用次数: 0

Abstract

Background: Previous studies have suggested that neighborhoods characterized by higher walkability are related to a reduced risk of ischemic heart disease (IHD), whereas exposure to PM_2.5 is positively associated with risk of IHD. Nevertheless, their joint impact on IHD warrants further investigation.

Methods: This prospective cohort study was performed in Yinzhou, Ningbo, China, comprising 47,516 participants. Individual-level walkability and PM_2.5 were evaluated using a commercial walkability database and a land use regression (LUR) model, respectively. Hazard ratios (HRs) and 95 % confidence intervals (95 % CIs) were calculated using two Cox proportional hazards models: one based on two-year average PM_2.5 levels prior to baseline, and the other incorporating time-varying PM_2.5 assessed on a monthly scale. Dose-response relationships were explored using restricted cubic spline (RCS) functions. Interactions on both additive and multiplicative scales were assessed via relative excess risk due to interaction (RERI) and likelihood-ratio tests. Joint effects were explored and visualized using a 3D wireframe plot.

Results: Over a median follow-up of 5.14 years, 1735 incident cases of IHD were identified. Adjusted HRs (95 % CIs) were 1.56 (1.34-1.81) per 10 μg/m³ increase in PM_2.5 and 0.96 (0.94-0.98) per 10-unit increase in walkability, with both exposures exhibiting non-linear dose-response relationships. Walkability and PM_2.5 were positively correlated (r_s = 0.12, P < 0.001), and a multiplicative interaction was detected (P_interaction = 0.019).

Conclusion: Walkability was inversely associated with risk of IHD, whereas exposure to PM_2.5 was positively associated with IHD. Notably, the pernicious effects of PM_2.5 could be attenuated in areas with higher levels of walkability. Our findings underscore the significance of walkable urban design, air quality improvement, as preventive strategies for IHD.

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步行能力与细颗粒物对缺血性心脏病的相互影响：中国前瞻性队列研究。

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来源期刊

Ecotoxicology and Environmental Safety 环境科学-毒理学

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.