慢性缺血性心脏病的死亡风险与短期同时暴露于夏季热浪和臭氧的风险相关
Jiajun Shen1, Yu Zhang1,2, Yalin Zhang1
1Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan, 430065, China.
概括
同时的热浪和臭氧污染显著增加了慢性缺血性心脏病 (CIHD) 的死亡人数. 这项研究揭示了协同效应,强调了迫切需要采取气候行动和空气质量控制来保护公共健康.
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
- 气候变化影响 气候变化影响
背景情况:
- 气候变暖加剧了夏季的炎热和空气污染,造成了公共卫生风险.
- 热浪和臭氧污染对慢性缺血性心脏病 (CIHD) 死亡率的相互作用影响仍未得到充分研究.
研究的目的:
- 评估同期热浪和臭氧污染与中国人口中CIHD死亡率的联合关联.
- 调查这些环境暴露对CIHD死亡的协同效应.
主要方法:
- 一项全省,个人层面的病例交叉研究分析了中国江苏 (2016-2019) 33770例CIHD死亡病例.
- 使用空间分辨率的温度和臭氧数据,用温度值和持续时间来定义热浪.
- 条件后勤回归和相互作用指标 (REOI,AP,SI) 评估了暴露效应和协同作用.
主要成果:
- 热浪和臭氧暴露都与CIHD死亡率的增加独立相关.
- 分层分析显示,热浪日的臭氧相关风险加剧,高臭氧日的热浪风险更高.
- 观察到显著的协同效应,同时暴露会使过度风险增加10-19%,并将8-11%的概率归因于相互作用.
结论:
- 短期暴露于并发的热浪和高水平的臭氧协同增加了CIHD死亡风险和负担.
- 这些发现强调了应对气候变暖和环境臭氧污染的公共卫生紧迫性.
- 针对热量和臭氧的干预措施对于缓解CIHD死亡至关重要.
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