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| Authors Grayson
JK
Grayson studied male members of the US Air Force who had completed
at least one full year of service between January 1, 1970 and
December 31, 1989. From this population, 230 men with brain tumours
were compared with 920 controls. Each case had four controls,
matched on year of birth and race. Exposure to electromagnetic
fields was estimated from occupational history. Only crude estimates
of individual exposure could be made. Radiofrequency/microwave
exposure was associated with a risk of 1.39. Officers were more
likely than enlisted men to develop brain tumours. There was no
clear potential exposure-response pattern.
It was hypothesised that military rank was an indicator of socio-economic status, but it was not clear what factor or factors associated with this could have influenced the outcome. |
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