Study type: Epidemiological study (observational study)

Parental occupational exposure to extremely low frequency magnetic fields and childhood cancer: a German case-control study. epidem.

Published in: Am J Epidemiol 2010; 171 (1): 27-35

Aim of study (acc. to author)

A case-control study was conducted in Germany to investigate if children whose parents were occupationally exposed to higher levels of extremely low frequency magnetic fields had an increased risk of developing cancer.

Endpoint/type of risk estimation

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

Exposure

Assessment

Exposure groups

Group Description
Reference group 1 paternal occupational exposure to ELF-MF: ≤ 0.2 µT
Group 2 paternal occupational exposure to ELF-MF: > 0.2 µT
Reference group 3 paternal occupational exposure to ELF-MF: ≤ 0.1 µT
Group 4 paternal occupational exposure to ELF-MF: > 0.1 - 0.2 µT
Group 5 paternal occupational exposure to ELF-MF: > 0.2 - 1 µT
Group 6 paternal occupational exposure to ELF-MF: > 1 µT

Population

Case group

Control group

Study size

Cases Controls
Evaluable 2,049 2,382
Other:

cases included 846 children with acute leukemia, 159 children with non-Hodgkin lymphoma, 444 with CNS tumors and 600 with other tumors

Statistical analysis method: (adjustment: )

Conclusion (acc. to author)

About 24 % of the fathers and 6.6 % of the mothers were occupationally exposed to extremely low frequency magnetic fields above 0.2 µT. No increased cancer risk was observed in children those fathers were occupationally exposed to magnetic fields above 0.2 µT. Furthermore, no increased cancer risk was found for magnetic field levels exceeding 1 µT. Maternal occupational exposure to magnetic fields was also not related to an increased cancer risk in children.
The risk of childhood cancer was not linked to preconceptional parental exposure to extremely low frequency magnetic fields in this large case-control study.

Study funded by

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