Buildings with indoor transformer stations may serve as a basis for improved epidemiological studies on the health effects of extremely low-frequency magnetic fields (ELF MFs). Previous studies have shown that ELF MF exposure can be adequately assessed based on the fact that MF levels are high in apartments directly above transformers. In this paper, we describe the creation of a registry of Finnish residential buildings with built-in transformer stations and discuss its usability in epidemiological studies. Information obtained from electric utilities and building blueprints were used to identify 677 buildings in which an apartment was located above or adjacent to a transformer station. All apartments in these buildings were classified into exposure categories based on their location in relation to the transformer. Residential histories of these buildings were obtained from the Population Register Centre. Out of the 287,668 individuals who have resided in the buildings, 9,126 of them have resided in an apartment located directly above a transformer station. All information was collected without contacting residents, thus avoiding selection bias. The registry can be linked with data from high-quality nationwide registries to confirm or challenge the reported associations of ELF MF exposure and diseases such as cancer, miscarriage, and Alzheimer's disease. Bioelectromagnetics. 2020;41:34-40 © 2019 Bioelectromagnetics Society.

中文翻译：

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带有变电站的建筑物登记册是极低频磁场对健康影响的流行病学研究的基础。

带有室内变电站的建筑物可以作为改进流行病学研究的基础，以研究极低频磁场（ELF MF）对健康的影响。先前的研究表明，基于变压器正上方公寓中的MF水平较高这一事实，可以对ELF MF暴露进行充分评估。在本文中，我们描述了创建带有内置变电站的芬兰住宅建筑物的注册表，并讨论了其在流行病学研究中的可用性。从电力公司和建筑物设计图获得的信息用于识别677座建筑物，其中公寓位于变电站上方或附近。这些建筑物中的所有公寓均根据其相对于变压器的位置被分类为暴露类别。这些建筑物的居住历史是从人口登记中心获得的。居住在建筑物中的287,668个人中，其中9,126居住在位于变电站正上方的公寓中。收集所有信息时无需联系居民，从而避免了选择偏见。可以将注册中心与来自全国各地高质量注册中心的数据联系起来，以确认或挑战已报道的ELF MF暴露与疾病（例如癌症，流产和阿尔茨海默氏病）的关联。生物电磁学。2020; 41：34-40©2019生物电磁学会。收集所有信息时无需联系居民，从而避免了选择偏见。可以将注册中心与来自全国各地高质量注册中心的数据联系起来，以确认或挑战已报道的ELF MF暴露与疾病（例如癌症，流产和阿尔茨海默氏病）的关联。生物电磁学。2020; 41：34-40©2019生物电磁学会。收集所有信息时无需联系居民，从而避免了选择偏见。可以将注册中心与来自全国各地高质量注册中心的数据联系起来，以确认或挑战已报道的ELF MF暴露与疾病（例如癌症，流产和阿尔茨海默氏病）的关联。生物电磁学。2020; 41：34-40©2019生物电磁学会。