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大型研究显示带状疱疹疫苗与老年人痴呆风险降低24%相关

一项针对超过50万美国成年人的研究发现,接种带状疱疹疫苗Shingrix的人群在四年内被诊断患痴呆症的可能性降低了24%,但研究人员提醒结果仅显示相关性。

本文由AI根据下方引用的来源综合生成。

United States

发表于《内科学年鉴》的一项大型观察性研究发现,接种带状疱疹疫苗Shingrix的老年人,在四年内被诊断患痴呆症的概率比未接种者低24%。研究人员分析了超过50.9万名66岁及以上美国成年人的电子健康记录和医疗保险理赔数据。

在研究期间,18.8%的接种者被诊断患有痴呆症,而未接种疫苗者这一比例为24.6%。基于这一差距,研究人员估计,每17名接种疫苗者中大约可预防一例痴呆症,如果这种关联在进一步审查中成立,其潜在影响将相当可观。

该研究的作者谨慎指出,他们的研究设计——比较选择接种疫苗与未接种者的结果——只能确立相关性,而不能证明Shingrix能直接预防痴呆症。两组人群总体健康行为的差异可能部分解释了这一差距。2017年问世的Shingrix仍是目前唯一可用的带状疱疹疫苗,研究人员表示这些发现支持开展进一步的随机对照研究,以检验这种保护效应是否真实存在及其成因。

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大型研究显示带状疱疹疫苗与老年人痴呆风险降低24%相关