来自N3C RECOVER基于EHR的队列研究的见解,描述了SARS-CoV-2再感染和长期COVID的特征
Emily Hadley1, Yun Jae Yoo2, Saaya Patel3
1RTI International, Durham, NC, USA. ehadley@rti.org.
Communications medicine
|July 11, 2024
概括
重新感染COVID-19很常见,特别是在Omicron期间. 再感染的严重程度与初始感染相关,而长期COVID在初级感染后比再感染更频繁.
科学领域:
- 传染性疾病 传染性疾病
- 流行病学 流行病学
- 公共卫生 公共卫生
背景情况:
- 尽管流行病的持续时间很长,但COVID-19的再感染情况尚未得到充分了解.
- 描述SARS-CoV-2再感染及其影响至关重要.
研究的目的:
- 为了描述COVID-19再感染的发生率和模式.
- 为了调查再感染后长期COVID的发展.
- 为了比较重新感染与最初的SARS-CoV-2感染的严重程度.
主要方法:
- 利用来自国家COVID队列协作 (N3C) 的大型电子健康记录队列 (>300万患者).
- 计算总结统计数据,效果大小和卡普兰-梅尔曲线进行分析.
- 分析数据以了解COVID-19再感染动态和结果.
主要成果:
- 再感染的发生率为6.9%,大多数发生在Omicron变种时代.
- 在初始感染后,长期COVID诊断的频率高于同一时期的再感染.
- 再感染的严重程度在统计学上与最初感染的严重程度相关 (p<0.0001),老年人和严重病例的死亡风险更高.
结论:
- COVID-19 再感染的严重程度与最初感染的严重程度有关.
- 长期COVID诊断在初级SARS-CoV-2感染后比同一时期的再感染更为常见.
- 需要进一步的研究才能充分理解COVID-19的再感染.
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