Ghazanfarpour Masumeh, Kashani Zahra Atarodi, Pakzad Reza, Abdi Fatemeh, Rahnemaei Fatemeh Alsadat, Akbari Pouran Akhavan, Roozbeh Nasibeh
Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran.
Iranshahr University of Medical Sciences, Iranshahr, Iran.
Open Med (Wars). 2021 Nov 3;16(1):1628-1641. doi: 10.1515/med-2021-0384. eCollection 2021.
The increasing use of new technologies by pregnant women inevitably exposes them to the risks of the electromagnetic fields (EMFs). According to the World Health Organization, EMFs are the major sources of pollutants which harm human health. This study was aimed to evaluate the effects of EMF exposure on abortion.
Web of Science, Cochrane Library, MEDLINE, PubMed, EMBASE, Scopus, and Google Scholar were searched until 2021. Pooled odds ratio (OR) with 95% confidence interval (CI) was estimated using a random-effects model. Heterogeneity was explored using Cochran's Q test and index. A meta-regression method was employed to investigate the factors affecting heterogeneity between the studies. The Newcastle-Ottawa scale was used to assess the credibility of the studies.
Eligible studies ( = 17) were analyzed with a total of 57,693 participants. The mean maternal age (95% CI) was 31.06 years (27.32-34.80). Based on meta-analysis results, the pooled estimate for OR of EMF with its effects was 1.27 (95% CI: 1.10-1.46). According to the results of meta-regression, sample size had a significant effect on heterogeneity between studies (: 0.030), but mother's age and publication year had no significant effect on heterogeneity (-value of bothwere >0.05). No publication bias was observed.
Exposure to EMFs above 50 Hz or 16 mG is associated with 1.27× increased risk of abortion. It may be prudent to advise women against this potentially important environmental hazard. Indeed, pregnant women should receive tailored counselling.
孕妇对新技术的使用日益增加，这不可避免地使她们暴露于电磁场（EMF）的风险中。根据世界卫生组织的说法，电磁场是危害人类健康的主要污染物来源。本研究旨在评估暴露于电磁场对流产的影响。
检索截至2021年的Web of Science、Cochrane图书馆、MEDLINE、PubMed、EMBASE、Scopus和谷歌学术。使用随机效应模型估计合并比值比（OR）及其95%置信区间（CI）。使用Cochran's Q检验和I²指数探索异质性。采用Meta回归方法研究影响各研究间异质性的因素。使用纽卡斯尔-渥太华量表评估研究的可信度。
对符合条件的17项研究进行了分析，共有57693名参与者。平均产妇年龄（95%CI）为31.06岁（27.32 - 34.80）。基于Meta分析结果，电磁场暴露效应的合并OR估计值为1.27（95%CI：1.10 - 1.46）。根据Meta回归结果，样本量对各研究间的异质性有显著影响（P = 0.030），但母亲年龄和发表年份对异质性无显著影响（两者P值均>0.05）。未观察到发表偏倚。
暴露于50Hz以上或16mG的电磁场与流产风险增加1.27倍相关。建议女性避免这种潜在的重要环境危害可能是谨慎的做法。事实上，孕妇应接受针对性的咨询。
