围产期健康和家庭环境因素的兄弟姐妹控制分析与童年ADHD症状相关的因素
Michael A Mooney1,2, Peter Ryabinin2,3, Elizabeth Nousen1,2
1Department of Psychiatry, Oregon Health & Science University, Portland, Oregon, USA.
medRxiv : the preprint server for health sciences
|June 30, 2025
概括
与ADHD症状相关的环境暴露可能不是因果关系. 家庭因素,包括遗传学,可能会解释这些关联,强调需要仔细的研究设计.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 环境健康 环境健康
背景情况:
- 许多研究表明,环境暴露与注意力缺陷/多动障碍 (ADHD) 之间存在联系.
- 这些环境因素与混杂的家族影响,如遗传倾向的因果作用仍然不清楚.
- 了解ADHD的因果环境风险因素对于有效的干预至关重要.
研究的目的:
- 调查环境暴露与ADHD症状之间的因果关系.
- 通过兄弟对照分析,区分直接环境影响与混家庭因素.
- 评估基因环境相关性对ADHD症状关联的影响.
主要方法:
- 使用了两个队列:ABCD (N=11646) 和俄勒冈州ADHD-1000 (N=744).
- 进行了全队列和兄弟对照分析,以比较家庭内影响与人口层面的关联.
- 整合了儿童多基因风险评分和母亲心理健康数据,以评估基因环境相关性.
主要成果:
- 全队列分析显示,ADHD症状与家庭冲突,围产因素和母乳养之间存在显著的关联.
- 兄弟姐妹对照分析显示,考虑到家族层面的混,如遗传风险,这些关联变得无关紧要.
- 在调整了多基因风险和母亲心理健康后,环境暴露的影响大小大幅降低.
结论:
- 环境风险和ADHD症状之间的观察到的关联很可能被家庭层面的因素,特别是遗传因素所混.
- 研究结果不支持研究环境暴露对ADHD症状的直接因果关系.
- 强调需要采用多个研究设计来控制行为研究中的家族混.
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