Study type: Epidemiological study (observational study)

Cancer incidence near radio and television transmitters in Great Britain. II. All high power transmitters. epidem.

Published in: Am J Epidemiol 1997; 145 (1): 10-17

Aim of study (acc. to author)

The cancer incidence in 1974 - 1986 was investigated in the vicinity of 20 high TV and FM radio transmitters in Great Britain. Significant declines in risk for adult leukemia, skin melanoma, and bladder cancer with distance from the Sutton Coldfield transmitter were found in a previous study (publication 1930).

Further details

The analysis was carried out for each transmitter separately, for all transmitters combined, and for 4 transmitter groups: group 1: TV transmitters of 870 - 1000 kW ERP, group 2: TV transmitters of 500 - 1000 kW ERP, group 3: all FM transmitters of 250 kW ERP, and group 4: all transmitters with a combination of TV (≥ 500 kW ERP) and FM (250 kW ERP) transmission.

Endpoint/type of risk estimation

Type of risk estimation:

Exposure

Assessment

Exposure groups

Group Description
Group 1 distance from transmitter: 0 - 0.5 km
Group 2 distance from transmitter: 0.5 - 1.0 km
Group 3 distance from transmitter: 1.0 - 2.0 km
Group 4 distance from transmitter: 2.0 - 3.0 km
Group 5 distance from transmitter: 3.0 - 4.9 km
Group 6 distance from transmitter: 4.9 - 6.3 km
Group 7 distance from transmitter: 6.3 - 7.4 km
Group 8 distance from transmitter: 7.4 - 8.3 km
Group 9 distance from transmitter: 8.3 - 9.2 km
Group 10 distance from transmitter: 9.2 - 10 km

Population

Study size

Type Value
Total 3,390,000
Statistical analysis method: ( adjustment: )

Conclusion (acc. to author)

3,305 adult leukemia cases were found in the distance of 0 to 10 km from all transmitters (observed/expected ratio 1.03; CI 1.00-1.07). A decline in risk of adult leukemia was observed for all transmitters combined.
The results showed no decline in risk of childhood leukemia and brain cancer, adult skin melanoma and bladder cancer with increasing distance from the transmitters. The magnitude and pattern of risk found in the vicinity of the Sutton Coldfield transmitter (publication 1930) did not appear to be replicated. The authors concluded that the result at most gave no more than very weak support to the previous findings.

Study funded by

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