空气污染对老年美国人中风死亡率的不平等:美国全国性分析
Jean-Luc K Kabangu1, Danny Fowler2, Amanda Hernandez3
1Department of Neurological Surgery, University of Kansas Medical Center, Kansas City, KS, United States.
Frontiers in public health
|October 8, 2024
概括
空气污染,特别是细颗粒物 (PM2.5),显著增加了美国老年人的中风死亡率. 弱势群体,包括黑人社区和贫困地区的弱势群体,面临不成比例的更高风险和更差的空气质量.
科学领域:
- 环境健康 环境健康
- 流行病学 流行病学
- 心血管疾病研究研究
背景情况:
- 空气污染是心血管疾病的公认危险因素,包括中风.
- 这项研究调查了县级空气污染与美国老年人中风死亡率之间的联系.
- 重点是了解这些影响的种族和社会经济差异.
研究的目的:
- 检查县级颗粒物 (PM2.5) 对缺血性和出血性中风死亡率的影响.
- 确定和量化空气污染对中风死亡率的影响中的种族和社会经济差异.
- 评估PM2.5水平与遵守环境保护局 (EPA) 空气质量标准之间的关系.
主要方法:
- 利用来自疾病预防控制中心的65岁以上 (2016-2020) 个人缺血性中风死亡率的县级数据.
- 从疾病预防控制中心获得县级空气污染数据,特别是PM2.5水平.
- 应用多变量线性和逻辑回归模型来分析PM2.5,中风死亡率和EPA空气质量标准合规性之间的关联.
主要成果:
- 在PM2.5水平和整体中风死亡率之间发现了显著的正相关性 (R=0.68,R2=0.48,p<0.001).
- 每增加1μg/m3的PM2.5与每10万居民增加1.89例缺血性中风死亡相关.
- 黑人人口占主导地位的县的死亡率增加更高 (5.81人/100,000人/1μg/m3 PM2.5),并且不符合EPA标准的可能性更高 (aOR 2.36).
- 持续贫困的县也表现出死亡率的增加 (4.05例死亡/100,000每1μg/m3 PM2.5).
结论:
- 县级空气污染,特别是PM2.5,对老年人缺血性中风死亡率产生重大影响.
- 种族和社会经济差异加剧了健康负担,黑人和贫困社区面临更大的风险.
- 需要紧急,有针对性的干预措施,以减少脆弱地区的空气污染,并确保公平的健康结果.
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