一项关于酒精消费和缺血性心脏病的证明负担研究
Sinclair Carr1, Dana Bryazka2, Susan A McLaughlin2
1Institute for Health Metrics and Evaluation, University of Washington, Seattle, WA, USA. scarr@hsph.harvard.edu.
Nature communications
|May 14, 2024
概括
观察性研究表明,适度饮酒会降低缺血性心脏病 (IHD) 的风险. 然而,门德尔的随机化研究显示没有关联,表明酒精和IHD的自我报告和遗传数据之间的相互矛盾的发现.
科学领域:
- 心血管流行病学心血管流行病学
- 遗传流行病学遗传流行病学
- 酒精研究 酒精研究
背景情况:
- 观察性研究始终将低至中度的酒精消费与缺血性心脏病 (IHD) 的风险降低联系在一起.
- 旨在减轻混的孟德尔随机化 (MR) 研究产生了相互矛盾的结果,表明酒精对IHD没有关联或有害影响.
- 这种差异凸显了自我报告的酒精摄入数据与基因预测的消费数据的潜在偏差.
研究的目的:
- 进行最新的系统审查和对队列,病例控制和关于酒精消费和内脏病风险的MR数据的元分析.
- 使用证明负担的元分析框架重新评估酒精摄入量和缺血性心脏病之间的关联.
- 调和有关酒精-IHD关系的观察性和遗传研究之间的相互矛盾的发现.
主要方法:
- 系统性文献综述和对现有队列,病例控制和门德尔随机化 (MR) 研究的元分析.
- 应用证明负担的元分析框架来重新评估数据.
- 基于自我报告的酒精消费与基因预测的酒精消费的结果的比较.
主要成果:
- 队列和病例控制数据证实了低至中度饮酒与IHD风险降低,心肌梗塞和IHD死亡率 (男性) 之间的反向关联.
- 汇集的MR数据显示,基因预测的酒精使用与IHD风险之间没有显著的关联,这与观察结果相矛盾.
- 这项研究证实了相互矛盾的结果,这取决于酒精消费是自我报告还是基因预测.
结论:
- 在观察性研究中,自我报告的酒精消费数据可能会受到偏差,导致与缺血性心脏病风险降低的虚假关联.
- 门德尔的随机化研究表明,基因预测的酒精消费不会对IHD产生保护作用.
- 在MR方法的进一步进步和使用大型观察数据库的随机试验的模拟对于酒精-IHD关系的最终答案至关重要.
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