疹疫苗接种和痴呆的发生
Michael Pomirchy1, Christian Bommer1, Fabienne Pradella1,2,3
1Division of Primary Care and Population Health, Department of Medicine, Stanford University, Stanford, California.
JAMA
|April 23, 2025
概括
接种疹疫苗可以预防或延缓痴呆症. 这项澳大利亚研究发现,在7.4年内,HZ疫苗的适用性降低了痴呆症诊断的概率1. 8个百分点.
科学领域:
- 老年学
- 流行病学
- 疫苗学
背景情况:
- 新出现的证据表明,疹疫苗可以预防痴呆症.
- 之前在威尔士进行的一项准实验表明HZ疫苗对痴呆症有潜在的预防作用.
- 这项研究旨在在不同的人群和医疗保健系统中验证这些发现.
研究的目的:
- 调查HZ疫苗对新痴呆症诊断的发生率的因果关系.
- 评估HZ疫苗是否影响澳大利亚队列中痴呆症诊断的概率.
主要方法:
- 在澳大利亚采用回归不连续性方法的准实验设计.
- 根据年龄 (70-79岁) 和出生日期,从2016年11月1日开始获得免费活体减弱型疹疫苗的资格.
- 来自65家全科医院的初级保健电子健康记录被分析为痴呆症诊断和疫苗接种情况.
主要成果:
- 通过狭窄的出生日期窗口来确定HZ疫苗接种资格,创建了具有不同接种率的可比群体.
- 在7. 4年内,符合HZ疫苗接种条件的新痴呆症诊断的可能性降低了1. 8个百分点 (P=. 01).
- 疫苗接种资格没有影响其他预防服务或其他慢性疾病的诊断.
结论:
- 这项研究提供了强有力的证据,证实了先前的研究结果,即HZ疫苗可以减少痴呆的发生.
- 与传统的观察研究相比,准实验设计加强了因果推断.
- 研究结果表明,HZ疫苗接种计划对预防痴呆症有潜在的公共健康益处.
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