长期暴露于PM1和高血压住院:在中国南部的一个大型社区队列上进行的因果推理研究
Yuqin Zhang1, Shirui Chen1, Jing Wei2
1Department of Medical Statistics, School of Public Health & Center for Health Information Research & Sun Yat-sen Global Health Institute, Sun Yat-sen University, Guangzhou 510080, China.
Science bulletin
|March 31, 2024
概括
微小颗粒物 (PM1) 暴露显著增加高血压住院的风险,特别是在妇女和那些运动. 这种风险高于细颗粒物 (PM2.5) 的风险.
科学领域:
- 环境健康 环境健康
- 心血管流行病学心血管流行病学
- 空气污染研究研究
背景情况:
- 关于微慢性颗粒物 (PM1) 和高血压住院治疗之间的因果关系的证据有限.
- 使用因果推断方法的大型队列研究对于PM1和高血压很少.
研究的目的:
- 调查PM1暴露和因高血压住院治疗之间的因果关系.
- 为了比较PM1和微细可吸入颗粒物 (PM2.5) 对高血压住院治疗的影响.
主要方法:
- 从2015年到2020年,在中国南部跟踪了一大群36271名参与者.
- 使用1公里分辨率的卫星数据估计了PM1和PM2.5度.
- 逆概率权重和边际结构考克斯模型被用于因果推理.
主要成果:
- 年平均PM1度每增加1μg/m3都与整体和基本高血压住院的风险增加有关 (HR:1.13-1.15).
- 在lag0-1和lag0-2时,PM1暴露显示高血压风险增加了17% - 21%,其效果比PM2.5.5.更大,比PM2.5.1%更大.
- 在女性和从事体育炼的人群中观察到更高的易感性.
结论:
- 长期暴露于PM1与高血压住院有不利关联.
- PM1对高血压风险的影响比PM2.5更为明显,特别是在易受伤害的子组中.
- 对于PM1暴露的高血压风险,没有确定安全值.
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