Department of Medical Sciences, University of Castilla-La Mancha, Albacete, Spain.
Department of Applied Physics, University of Castilla-La Mancha, Albacete, Spain.
Sci Total Environ. 2017 Dec 1;599-600:834-843. doi: 10.1016/j.scitotenv.2017.05.018. Epub 2017 May 9.
Simultaneously with the increase of Radiofrequency Electromagnetic Fields (RF-EMF) in recent decades, there has been increasing concern about their potential relation with the etiology of several tumors. At this time, the techniques of spatial data analysis jointly with the study of the personal exposure to these fields offer a new approach to the problem. This paper presents the results of a preliminary epidemiological study, combining Epidemiology, Statistics and Geographical Information Systems (GIS), in which we analyzed the correlation between exposure to RF-EMF in the city of Albacete (166,000 inhabitants, southeast Spain) and the incidence of several cancers with unspecific causes (lymphomas, and brain tumors). We used statistical tools to analyze the spatial point patterns and aggregate data with the aim to study the spatial randomness and to determine the zones with the highest incidence from 95 tumors studied (65 lymphomas, 12 gliomas and 18 meningiomas). We also perform a correlation (Spearman) study between the personal exposure to RF-EMF in 14 frequency bands, recorded by an EME Spy 140 (Satimo) exposimeter in the city's administrative regions, and the incidence of the tumors registered from January 2012 to May 2015. The studied cancer cases have a random spatial distribution inside the city. On the other hand, and by means of an ecological study, we verified that the exposure to RF-EMF registered in the city of Albacete shows little correlation with the incidence of the studied tumors (gliomas (ρ=0.15), meningiomas (ρ=0.19) and lymphomas (ρ=-0.03)). The proposed methodology inaugurates an unexplored analysis path in this field.
随着近几十年来射频电磁场 (RF-EMF) 的增加，人们越来越关注它们与几种肿瘤病因之间的潜在关系。此时，空间数据分析技术与这些场的个人暴露研究相结合，为解决这一问题提供了新的途径。本文介绍了一项结合流行病学、统计学和地理信息系统 (GIS) 的初步流行病学研究的结果，我们分析了西班牙东南部巴伦西亚自治区阿尔瓦塞特市 (166000 居民) 的 RF-EMF 暴露与几种无特定原因癌症 (淋巴瘤和脑肿瘤) 的发病率之间的相关性。我们使用统计工具分析空间点模式和聚合数据，目的是研究空间随机性，并确定从 95 个研究肿瘤中发病率最高的区域 (65 个淋巴瘤、12 个神经胶质瘤和 18 个脑膜瘤)。我们还在城市行政区使用 Satimo 的 EME Spy 140 暴露计记录的 14 个频段对 RF-EMF 的个人暴露与 2012 年 1 月至 2015 年 5 月登记的肿瘤发病率之间进行了相关性 (Spearman) 研究。研究中的癌症病例在城市内呈随机空间分布。另一方面，通过生态研究，我们验证了在阿尔瓦塞特市记录的 RF-EMF 暴露与研究肿瘤的发病率相关性不大 (神经胶质瘤 (ρ=0.15)、脑膜瘤 (ρ=0.19) 和淋巴瘤 (ρ=-0.03))。所提出的方法为该领域开辟了一条尚未探索的分析途径。
