跳过早餐和骨矿物质密度之间的因果关系:一个双样本的门德尔随机研究
Jinsheng Yu1, Chen Zhuang2, Wenxuan Guo3
1The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
Frontiers in endocrinology
|November 29, 2023
概括
跳过早餐不会因果关系地影响各种骨部位和年龄组的骨矿物质密度 (BMD). 这项门德尔随机化研究证实,早餐习惯与骨健康之间没有联系.
科学领域:
- 营养流行病学 营养流行病学
- 遗传流行病学遗传流行病学
- 骨的新陈代谢 骨的新陈代谢
背景情况:
- 早餐消费是一种常见的饮食习惯,对整体健康有潜在的影响.
- 骨矿物质密度 (BMD) 是骨健康和骨折风险的关键指标.
- 了解影响BMD的生活方式因素对于公共卫生战略至关重要.
研究的目的:
- 调查跳过早餐的习惯与骨矿物质密度 (BMD) 之间的潜在因果关系.
- 为了评估这种关系,利用一个强大的两样本门德尔随机化 (MR) 方法.
- 分析跨多个骨部位和年龄人口统计的关联.
主要方法:
- 采用两样本的孟德尔随机化 (MR) 设计,使用公开可用的全基因组关联研究 (GWAS) 总结数据.
- 使用了五种统计方法,包括反变量权重 (IVW),MR-Egger,加权中位数,简单模式和加权模式.
- 评估异质性,类型,并进行一次性分析,以确保结果的有效性.
主要成果:
- 使用初级IVW方法,在跳过早餐和前臂,大腿或腰椎的BMD之间没有确定统计学上显著的因果关系.
- 进一步分析包括五个年龄组分层的BMD数据也显示没有明显的因果关系.
- 所有补充的MR方法,异质性测试,类型评估和留出一个分析都支持了研究结果的稳定性和可靠性.
结论:
- 该研究得出结论,跳过早餐对骨矿物质密度没有明显的因果关系.
- 这些发现表明,跳过早餐不太可能是骨健康下降的直接风险因素.
- 结果提供了强有力的证据,反对因果关系,无论研究的骨部位或年龄组.
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