社会经济地位与重大先天性异常之间的关联:双样本孟德尔随机化研究
Daniel Linares1, Qun Miao2,3, Beatriz Luna1
1Genetics Institute, Universidad Mayor de San Andres, La Paz, La Paz, Bolivia.
Birth defects research
|September 5, 2025
概括
社会经济地位 (SES) 和先天性异常之间存在复杂的关系. 更高的教育程度可能会降低先天性心脏缺陷 (CHD) 的风险,但总体而言,将SES与异常联系在一起的证据仍然有限.
科学领域:
- 遗传学
- 流行病学
- 公共卫生
背景情况:
- 观察性研究表明社会经济地位 (SES) 影响先天性异常风险,但混因素掩盖了这种关系.
- 孟德尔随机化 (MR) 提供了一种研究SES与先天异常之间的潜在因果关系的方法.
- 之前的研究受限于传统观察研究中的残留混.
研究的目的:
- 使用孟德尔随机化 (MR) 调查社会经济地位 (SES) 指标与重大先天性异常风险之间的潜在因果关系.
- 分析教育程度,家庭收入和塔森德贫困指数与先天性异常风险之间的关联.
- 通过使用MR来解决先前研究的局限性,以尽量减少混.
主要方法:
- 进行了两个样本的孟德尔随机化 (MR) 分析.
- 对SES指标 (教育程度,收入,Townsend贫困指数) 的基因变异来源于英国生物库数据,通过MRC IEU OpenGWAS数据库.
- 使用FinnGen研究的数据分析了与9类先天性异常的关联,以反变量加权 (IVW) 为主要方法,并对多重测试进行Bonferroni校正.
主要成果:
- 在多次测试校正之前,更高的教育水平显示与降低先天性心脏缺陷 (CHD),呼吸道和肌肉骨的风险存在潜在关联.
- 较低的Townsend剥夺指数与先天性消化道异常的更高风险有意想不到的联系.
- 经过多次测试的邦费罗尼校正后,只有更高的教育程度与降低心脏病风险之间的关联仍然具有统计意义 (调整后的p=0. 02).
结论:
- 对于社会经济地位 (SES) 和先天性异常之间的因果关系的证据有限.
- 在多次测试后,更高的教育程度与先天性心脏缺陷 (CHD) 的风险显著降低有关.
- 需要使用精细的方法进行进一步的研究,以充分阐明SES与先天异常之间的复杂关系.
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