Study type: Epidemiological study (observational study)

Acute childhood leukemias and exposure to magnetic fields generated by high voltage overhead power lines - a risk factor in Iran. epidem.

Published in: Asian Pac J Cancer Prev 2007; 8 (1): 69-72

Aim of study (acc. to author)

The association between acute childhood leukemia and exposure to magnetic fields generated by high voltage overhead power lines was investigated in a case-control study in Iran.

Endpoint/type of risk estimation

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

Exposure

Assessment

Exposure groups

Group Description
Reference group 1 distance from residence to high voltage power line: ≥ 500 m
Group 2 distance from residence to high voltage power line: < 500 m
Reference group 3 mean magnetic fields: ≤ 0.45 µT
Group 4 mean magnetic fields: > 0.45 µT

Population

Case group

Control group

Study size

Cases Controls
Eligible 71 75
Participants 60 59
Participation rate 84 % 79 %

Conclusion (acc. to author)

14 cases (23.5 %) and 2 controls (3.3 %) were living 500 m or less to a high voltage power line. 15 cases (25 %) and 5 controls (8.5 %) were exposed to magnetic fields above 0.45 µT. A statistically significant increased risk for acute leukemia were found for children living 500 m or less to a high voltage power line and for children with an exposure to magnetic fields above 0.45 µT.

Study funded by

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