Miller M A, Murphy J R, Miller T I, Ruttenber A J
Department of Preventive Medicine and Biometrics, University of Colorado Health Sciences Center, Denver, USA.
Risk Anal. 1995 Apr;15(2):281-7. doi: 10.1111/j.1539-6924.1995.tb00321.x.
We used meta-analysis to synthesize the findings from eleven case-control studies on cancer risks in humans exposed to 50-60 Hertz powerline electromagnetic fields (EMFs). Pooled estimates of risk are derived for different EMF measurement methods and types of cancer. EMF measurement methods are classified as: wiring configuration codes, distance to power distribution equipment, spot measurements of magnetic fields, and calculated indices based on distance to power distribution equipment and historic load data. Pooled odds ratios depicting the risk of cancer by each measurement type are presented for all cancers combined, leukemia for all age groups and childhood leukemia. The wire code measurement technique was associated with a significantly increased risk for all three cancer types, while spot measures consistently showed non-significant odds ratios. Distance measures and the calculated indices produced risk estimates which were significant only for leukemia.
我们采用荟萃分析来综合11项病例对照研究的结果，这些研究针对暴露于50 - 60赫兹输电线电磁场（EMF）的人类癌症风险。针对不同的EMF测量方法和癌症类型得出了风险的汇总估计值。EMF测量方法分为：布线配置代码、到配电设备的距离、磁场的现场测量以及基于到配电设备的距离和历史负荷数据计算得出的指数。针对所有癌症合并、所有年龄组的白血病以及儿童白血病，给出了每种测量类型所描述的患癌风险的汇总比值比。布线代码测量技术与所有这三种癌症类型的风险显著增加相关，而现场测量始终显示出无显著意义的比值比。距离测量和计算得出的指数所产生的风险估计值仅对白血病具有显著性。
