Study type: Epidemiological study

Case-control study on occupational exposure to extremely low-frequency electromagnetic fields and the association with acoustic neuroma. epidem.

Published in: Environ Res 2020; 187: 109621

Aim of study (acc. to author)

The association between occupational exposure to extremely low-frequency magnetic fields and risk for acoustic neuroma was investigated in a case-control study in Sweden.

Endpoint/type of risk estimation

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

Exposure

Assessment

Exposure groups

Group Description
Reference group 1 cumulative exposure: < 2.33 µT-years
Group 2 cumulative exposure: 2.33 - < 3.79 µT-years
Group 3 cumulative exposure: 3.79 - < 5.55 µT-years
Group 4 cumulative exposure: 5.55 - < 8.52 µT-years
Group 5 cumulative exposure: ≥ 8.52 µT-years
Reference group 6 average exposure: < 0.11 μT
Group 7 average exposure: 0.11 - < 0.13 μT
Group 8 average exposure: 0.13 - < 0.18 μT
Group 9 average exposure: 0.18 - < 0.27 μT
Group 10 average exposure: ≥ 0.27 μT
Reference group 11 maximum exposed job: < 0.13 μT
Group 12 maximum exposed job: 0.13 - < 0.16 μT
Group 13 maximum exposed job: 0.16 - < 0.24 μT
Group 14 maximum exposed job: 0.24 - < 0.60 μT
Group 15 maximum exposed job: ≥ 0.60 μT

Population

Case group

Control group

Study size

Cases Controls
Participants 310 3,485
Participation rate 92 % 86 %
Statistical analysis method: (adjustment: )

Conclusion (acc. to author)

No increased risk for acoustic neuroma was found in any category.
The authors concluded that occupational exposure to extremely low-frequency electromagnetic fields was not associated with an increased risk for acoustic neuroma.

Study funded by

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