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弗吉尼亚州短期温度变化和死亡率之间的关联
Melanie M Pane1, Robert E Davis1
1Department of Environmental Sciences, University of Virginia, Charlottesville, Virginia, United States of America.
PloS one
|September 20, 2024
概括
温度突然下降会增加死亡风险,特别是在罗诺克和里士满. 短期变暖事件也会增加死亡率,特别是在北弗吉尼亚州和诺福克.
科学领域:
- 环境健康 环境健康
- 流行病学 流行病学
- 气候科学 气候科学
背景情况:
- 短期的温度变化对公众健康来说是一个日益关注的问题.
- 了解每日温度波动与死亡率之间的联系对于风险评估至关重要.
研究的目的:
- 调查日常温度变化与总死亡率之间的关系.
- 分析温度变化对弗吉尼亚州不同地区死亡率的滞后影响.
主要方法:
- 利用机场观测来计算每日最大温度变化.
- 员工分布式滞后非线性模型在28天内评估死亡风险.
- 对空气质量,时间趋势和其他混因素进行控制.
主要成果:
- 在四个地点中的三个地点,在每日温度大幅下降后,观察到死亡风险的显著增加.
- 短期温度上升也与较高的死亡率有关,在某些地区观察到立即影响.
- 温度下降带来的滞后死亡效应持续长达25天,而变暖的影响往往更为直接.
结论:
- 短期的温度变化,无论是增加还是减少,都对死亡率构成重大风险.
- 死亡影响的时间和规模在变暖和变冷事件之间不同,受季节的影响.
- 这些发现可以为减轻与温度波动相关的风险的公共卫生策略提供信息.
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