接种疫苗和未接种疫苗的COVID-2019住院患者中死亡和疾病严重性的风险因素:一项回顾性队列研究
Guilherme Jorge Costa1, José Roberto da Silva Junior2, Caio Cesar Arruda da Silva2
1. Departamento de Ensino e Pesquisa, Hospital Alfa, Recife (PE) Brasil.
概括
接种COVID-19疫苗显著减少严重疾病和死亡. 增剂剂量提供累积保护,三剂量提供了最实质性的对住院患者的死亡率的好处.
科学领域:
- 传染性疾病 传染性疾病
- 疫苗学 疫苗学 疫苗学
- 公共卫生 公共卫生
背景情况:
- COVID-19 仍然是一个重大的全球健康威胁,需要对有效的预防和治疗策略进行持续的研究.
- 疫苗接种是减轻SARS-CoV-2影响的首要工具,但在住院患者中的实际有效性需要持续评估.
研究的目的:
- 评估先前接种疫苗的住院COVID-19患者的临床特征.
- 根据疫苗接种状态 (未接种疫苗,一,二或三剂) 来比较COVID-19住院患者的死亡风险因素和28天生存率.
主要方法:
- 在巴西里西菲的1,921名COVID-19住院患者的回顾性观察队列研究 (2020年7月 - 2022年6月).
- 分析包括对死亡风险因素的调整和不同疫苗剂量组的结果比较.
主要成果:
- 接种疫苗显著降低了死亡风险,其中三个剂量是最具保护性的 (调整后OR=0.06).
- 关键的死亡风险因素包括侵入性机械通风 (IMV),80岁以上的年龄和需要血管压缩剂.
- 随着每剂疫苗注射,观察到逐渐的益处,减少ICU入院,IMV使用和死亡率.
结论:
- COVID-19疫苗有效降低住院患者的疾病严重程度和死亡率.
- 增强剂量增强了保护,证明了累积益处和每次接种后续疫苗的生存率的提高.
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