Study type: Epidemiological study (observational study)

Relationship between exposure to extremely low-frequency electromagnetic fields and breast cancer risk: a meta-analysis. epidem.

Published in: Eur J Gynaecol Oncol 2014; 35 (3): 264-269

Aim of study (acc. to author)

A meta-analysis was conducted to explore the association between exposure to extremely low-frequency magnetic fields and breast cancer risk.

Further details

Following 16 case-control studies were included in the meta-analysis: Demers et al (1991), Coogan et al (1998), Feychting et al (1998), Rosenbaum et al (1994), Loomis et al (1994), Schoenfeld et al (2003), Kliukiene et al (2004), Wjingaarden et al (2001), Labreche et al (2003), McElroy et al (2001), McElroy et al (2007), Kabat et al (2003), Zhu et al (2003), Davis et al (2002), London et al (2003), and Forssen et al (2000).

Endpoint/type of risk estimation

Type of risk estimation: (odds ratio (OR))

Exposure

Population

Statistical analysis method:

Conclusion (acc. to author)

An increased risk for breast cancer in association with exposure to extremely low-frequency electromagnetic fields was observed (OR 1.10, CI 1.01-1.20). A stratified analysis on the menopausal status showed a significant increased risk for the premenopausal group (OR 1.25, CI 1.05-1.49) and a nonsignificant increased risk for the postmenopausal group (OR 1.04, Cl 0.93-1.18).
The authors conclude that exposure to extremely low-frequency magnetic fields may increase the risk of breast cancer, especially in premenopausal women.

Study funded by

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