美国州限制和过度COVID-19流行病死亡人数
1Frank Batten School of Leadership and Public Policy, University of Virginia, Charlottesville.
JAMA health forum
|July 26, 2024
概括
严格的COVID-19限制大大减少了美国的流行病死亡人数. 行为变化起到了关键作用,并非所有措施都同样有效,有些措施提供了最小的益处.
科学领域:
- 公共卫生 公共卫生
- 流行病学 流行病学
- 卫生政策 卫生政策
背景情况:
- 美国州级COVID-19限制对美国流行病死亡率的影响仍然不完全理解.
- 之前的研究尚未确定这些措施对死亡率的影响程度.
研究的目的:
- 在两年时间内量化州特定的COVID-19限制和过度死亡之间的关联.
- 调查行为变化在调解这些限制的影响中的作用.
主要方法:
- 与流行病前基线 (2017-2019) 相比,对美国州级死亡率和人口数据 (2020-2022) 的横截面分析.
- 根据年龄标准化过度死亡率和比率的计算,根据各种国家限制进行回归.
- 调查行为变化作为潜在机制,分析2023年10月至2024年6月的数据.
主要成果:
- 面具和疫苗的强制性显示出与过度死亡的负面关联;禁止这些强制性与较高的死亡率相关.
- 活动限制与死亡率的关联很小.
- 如果所有州都采用了10项最严格的政策,那么过度死亡可能会减少10-21%;相反,10项最不严格的政策可能会导致13-17%的增加.
结论:
- 作为一个集体措施,严格的COVID-19限制与大流行死亡率的显著减少有关.
- 行为变化似乎是观察到的死亡率差异的关键解释因素.
- 限制措施的有效性各不相同,有些限制措施,如学校关闭,可能相对于其成本而言提供有限的好处.
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