Effect of air pollution exposure on the incidence of stroke
Chen Chao
Ge Siqi
Wang Hao
Cao Ruojin
Abstract：Objective To explore the effect of air pollution exposure on the incidence of stroke.Methods From January 1,2023 to December 31,2024,time series data from four community surveillance points in Beijing were used for analysis,with urban and rural residents of Beijing as the research population.Daily air pollutant concentrations(PM2.5,PM10,sulfur dioxide,carbon monoxide,ozone,nitrogen dioxide)and meteoro-logical data were collected.A time-stratified case-crossover design and a Poisson-like regression model were used to estimate the association between air pollutants and stroke events.Results A total of 1 100 stroke patients were registered during the study period.Concentrations of PM2.5 and PM10 varied significantly between monitoring sites and between days.The results showed that the exposure to PM2.5 and PM10 significantly increased the risk of stroke events.The peak effect of PM2.5 appeared in the lag period of 3-5 d,and the peak effect of PM10 appeared in the lag period of 4-7 d.For every 10 μg/m3 increase in PM2.5 concentration,the relative risk of stroke was 1.022(95％confidence interval:1.008-1.039),and the lag period was 0-7 d.For every 10 μg/m3 increase in PM10 concentration,the relative risk of stroke was 1.027(95％confidence interval:1.008-1.055),and the lag period was 0-12 d.Conclusion The results of this study showed that environmental pollutants,especially PM2.5 and PM10,were significantly associated with stroke events.These findings suggest the impor-tance of air quality management in reducing the risk of stroke.
Keywords：StrokeAir pollutantPM2.5PM10Time series analysis
Publication Date：2025-08-18
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)
Pages：5( 1152-1156 )