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Cancer morbidity in subjects occupationally exposed to
high frequency (radiofrequency and microwave) electromagnetic radiation.
Department of Biological Effect of
Non-Ionizing Radiations, Center for Radiobiology and Radiation Safety
at the Military Institute of Hygiene and Epidemiology, Warsaw, Poland.
Cancer morbidity was registered in the
whole population of military career personnel in Poland during a period
of 15 years (1971-1985). Subjects exposed occupationally to
radiofrequencies (RF) and microwaves (MW) were selected from the
population on the basis of their service records and documented
exposures at service posts. The population size varied slightly from
year to year with a mean count of about 128,000 persons each year; each
year about 3700 of them (2.98%) were considered as occupationally
exposed to RF/MW. All subjects (exposed and non-exposed to RF/MW) were
divided into age groups (20-29, 30-39, 40-49 and 50-59). All newly
registered cases of cancer were divided into 12 types based on
localisation of the malignancy; for neoplasms of the haemopoietic
system and lymphatic organs an additional analysis based on diagnosis
was performed. Morbidity rates (per 100,000 subjects annually) were
calculated for all of the above localisations and types of malignancies
both for the whole population and for the age groups. The mean value of
15 annual rates during 1971-1985 represented the respective morbidity
rate for the whole period. Morbidity rates in the non-exposed groups of
personnel were used as 'expected' (E) rates for the exposed subjects,
while the real morbidity rates counted in the RF/MW-exposed personnel
served as 'observed' (O) rates. This allowed the calculation of the
observed/expected ratio (OER) representing the odds ratio for the
exposed groups. The cancer morbidity rate for RF/MW-exposed personnel
for all age groups (20-59 years) reached 119.1 per 100,000 annually
(57.6 in non-exposed) with an OER of 2.07, significant at P < 0.05.
The difference between observed and expected values results from higher
morbidity rates due to neoplasms of the alimentary tract (OER =
3.19-3.24), brain tumours (OER = 1.91) and malignancies of the
haemopoietic system and lymphatic organs (OER = 6.31). Among
malignancies of the haemopoietic/lymphatic systems, the largest
differences in morbidity rates between exposed and non-exposed
personnel were found for chronic myelocytic leukaemia (OER = 13.9),
acute myeloblastic leukaemia (OER = 8.62) and non-Hodgkin lymphomas
(OER = 5.82).
PMID: 8717316 [PubMed - indexed for MEDLINE]
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