The Causal Association Between Blood Lead and Sleep Disorders: Evidence from National Health and Nutrition Examination Survey and Mendelian Randomization Analysis.

IF 3.8 4区 医学 Q1 PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH
Shengnan Chen, Ming Zhang, Weisong Zhang, Xiaolong Shao, Xiaobin Yang, Zhi Yang, Kai Nan
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Abstract

Background: Poor sleep quality is a global public health concern. This study aimed to identify the risk factors for sleep disorders and clarify their causal effects.

Methods: Data were obtained from the National Health and Nutrition Examination Survey (NHANES) and Mendelian randomization (MR)-Base databases. Baseline characteristics of individuals with and without sleep disorders were compared. A multivariate logistic regression analysis was performed to calculate the effects of each variable on sleep disorders. Causal effects of blood lead levels and hypertension on sleep disorders were assessed using MR analysis.

Results: In total, 3660 individuals were enrolled in the study. The prevalence of self-reported sleep disorders was 26.21%. Serum lead level, serum mercury level, serum retinol level, prevalence of hypertension, and daily vigorous work duration were significantly higher for those in the sleep disorders group than the control group. After adjusting for various covariates, the effects of serum lead and hypertension on sleep disorders were stable from logistic regression models 1-4. MR analysis showed that blood lead levels were causally related to the risk of sleep disorders (odds ratio (OR) = 1.09, 95% confidence interval (CI) 1.01-1.17, P = 0.030). There was no causal link between elevated blood pressure and sleep disorders (OR = 0.99, 95% CI 0.94-1.04, P = 0.757). Goodness-of-fit tests and sensitivity analyses were used to verify the reliability of the results.

Conclusions: Blood lead is positively and causally associated with an increased risk of sleep disorders. These findings provide a novel perspective regarding sleep protection. Taking effective measures to reduce lead exposure may significantly improve sleep health.

血铅与睡眠障碍之间的因果关系:全国健康与营养调查和孟德尔随机分析的证据。
背景:睡眠质量差是一个全球性的公共健康问题。本研究旨在确定睡眠障碍的风险因素,并阐明其因果效应:数据来自美国国家健康与营养调查(NHANES)和孟德尔随机化(MR)基础数据库。比较了有睡眠障碍者和无睡眠障碍者的基线特征。进行了多变量逻辑回归分析,以计算各变量对睡眠障碍的影响。利用 MR 分析评估了血铅水平和高血压对睡眠障碍的因果影响:共有 3660 人参加了研究。自我报告的睡眠障碍发生率为 26.21%。睡眠障碍组的血清铅含量、血清汞含量、血清视黄醇含量、高血压患病率和每日剧烈工作时间均显著高于对照组。在对各种协变量进行调整后,血清铅和高血压对睡眠障碍的影响在逻辑回归模型 1-4 中保持稳定。MR分析表明,血铅水平与睡眠障碍风险存在因果关系(几率比(OR)=1.09,95%置信区间(CI)1.01-1.17,P=0.030)。血压升高与睡眠障碍之间没有因果关系(OR = 0.99,95% CI 0.94-1.04,P = 0.757)。拟合优度检验和敏感性分析用于验证结果的可靠性:结论:血铅与睡眠障碍风险的增加存在正向因果关系。这些发现为保护睡眠提供了一个新的视角。采取有效措施减少铅暴露可显著改善睡眠健康。
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来源期刊
CiteScore
10.70
自引率
1.40%
发文量
57
审稿时长
19 weeks
期刊介绍: The Journal of Epidemiology and Global Health is an esteemed international publication, offering a platform for peer-reviewed articles that drive advancements in global epidemiology and international health. Our mission is to shape global health policy by showcasing cutting-edge scholarship and innovative strategies.
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