Study type: Epidemiological study (observational study)

A population-based cohort study of occupational exposure to magnetic fields and cardiovascular disease mortality. epidem.

Published in: Ann Epidemiol 2009; 19 (1): 42-48

Aim of study (acc. to author)

A population-based cohort study was conducted in the USA to investigate the association between occupational exposure to magnetic fields and cardiovascular disease mortality.

Endpoint/type of risk estimation

Type of risk estimation:

Exposure

Assessment

Exposure groups

Group Description
Reference group 1 magnetic field exposure: < 0.15 µT
Group 2 magnetic field exposure: 0.15 - < 0.20 µT
Group 3 magnetic field exposure: 0.20 - < 0.30 µT
Group 4 magnetic field exposure: ≥ 0.30 µT

Population

Study size

Type Value
Total 307,012
Other:

4958 deaths caused by cardiovascular diseases

Statistical analysis method: ( adjustment: )

Conclusion (acc. to author)

No significant increased risks for the cardiovascular disease mortality were observed between individuals with medium (0.15 to < 0.20 µT), high (0.20 to < 0.30 µT), or very high (≥ 0.30 µT) magnetic field exposure levels as compared with individuals with background exposure levels of magnetic fields (< 0.15 µT) after adjustment for demographic factors.
The authors conclude that the study does not provide evidence for an association between occupational exposure to magnetic fields and cardiovascular disease mortality.

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