运动可能会延迟中国老年人的认知衰退:一种因果推断,以孟德尔随机化方法对有序的多类别暴露进行因果推断
Lizhen Han1, Yi Zeng2,3, Tao Huang4,5
1Center for Clinical and Epidemiologic Research, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing, 100029, China.
Scientific reports
|June 6, 2024
概括
开发了一种新的因果推断方法,用于有序的暴露. 这种方法在中国老年人中发现了运动和认知水平之间的积极因果关系.
科学领域:
- 老年学是一门学科.
- 流行病学 流行病学
- 生物统计学 生物统计学
背景情况:
- 认知能力下降是全球人口老龄化的一个主要问题.
- 传统的孟德尔随机化方法不适合有序,多类别的暴露.
- 调查生活方式因素对认知的因果影响需要先进的方法.
研究的目的:
- 开发一种新的因果推理方法,用于有序的多类别暴露.
- 研究生活方式因素与老年人认知水平之间的因果关系.
- 为了解决现有的孟德尔随机化技术的局限性.
主要方法:
- 利用全基因组关联分析来识别遗传位置作为工具变量.
- 开发并应用了一种结合最大概率估计的新型因果推理方法.
- 分析了来自中国长度健康长寿调查的897名中国老年人 (65岁以上) 的数据.
- 检查了有序的多类别暴露 (如饮食,运动) 和连续的认知结果.
主要成果:
- 在运动状态和认知水平之间发现了潜在的积极因果关系.
- 这种关联没有证据表明水平形 (p=0.370).
- 开发的方法在推断因果关联方面被证明是有效和可靠的.
结论:
- 已经建立了一种新的,实用的因果推断方法,用于有序的多类别风险.
- 运动可能对中国老年人的认知水平产生积极的因果关系.
- 这种方法克服了复杂暴露类型的传统门德尔随机化的局限性.
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