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Magnetic fields and cancer in people residing near Swedish high voltage power lines

Technical Report:

Abstract

The study was designed as a case-control study, based on the population comprised of everyone who have lived on a property located within 300 meters from any of the 220 and 400 kV power lines in Sweden during the period from 1960 through 1985. For adults it was required that the duration of residence was at least one year. The corridor was chosen to be wide enough to ensure that it included both exposed and unexposed homes. The cases were all instances of cancer diagnosed between 1960-85. For children, all types of cancer were included, while for adults the study was restricted to leukemia and brain tumors. The controls were matched to the cases on time of diagnosis, age, sex, parish, and power line. Exposure was assessed in several different ways. First, spot measurements were performed in the homes of the subjects. Second, the magnetic fields generated by the power lines were calculated by means of a computer program taking distance, line configuration, and load into account. For childhood leukemia and with cut off points at 0.1 and 0.2 {mu}T, the relative risk (RR) increased over the two exposure levels and was estimated at 2.7 (95% c.l.: 1.0-6,3) for 0.2  More>>
Publication Date:
Dec 31, 1992
Product Type:
Technical Report
Report Number:
IMM-6-92
Reference Number:
SCA: 240400; PA: SWD-92:007300; SN: 93000918378
Resource Relation:
Other Information: DN: Also available from Institutet foer Miljoemedicin, Box 60208, S-10401 Stockholm, Sweden; PBD: 1992
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; MAGNETIC FIELDS; HEALTH HAZARDS; POWER TRANSMISSION LINES; MYELOID LEUKEMIA; EPIDEMIOLOGY; CHILDREN; ADULTS; 240400; HEALTH AND SAFETY
OSTI ID:
10113663
Research Organizations:
Karolinska Inst., Stockholm (Sweden). Inst. of Environmental Medicine
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
Other: ON: DE93753067; TRN: SE9207300
Availability:
OSTI; NTIS
Submitting Site:
SWD
Size:
100 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Feychting, M, and Ahlbom, A. Magnetic fields and cancer in people residing near Swedish high voltage power lines. Sweden: N. p., 1992. Web.
Feychting, M, & Ahlbom, A. Magnetic fields and cancer in people residing near Swedish high voltage power lines. Sweden.
Feychting, M, and Ahlbom, A. 1992. "Magnetic fields and cancer in people residing near Swedish high voltage power lines." Sweden.
@misc{etde_10113663,
title = {Magnetic fields and cancer in people residing near Swedish high voltage power lines}
author = {Feychting, M, and Ahlbom, A}
abstractNote = {The study was designed as a case-control study, based on the population comprised of everyone who have lived on a property located within 300 meters from any of the 220 and 400 kV power lines in Sweden during the period from 1960 through 1985. For adults it was required that the duration of residence was at least one year. The corridor was chosen to be wide enough to ensure that it included both exposed and unexposed homes. The cases were all instances of cancer diagnosed between 1960-85. For children, all types of cancer were included, while for adults the study was restricted to leukemia and brain tumors. The controls were matched to the cases on time of diagnosis, age, sex, parish, and power line. Exposure was assessed in several different ways. First, spot measurements were performed in the homes of the subjects. Second, the magnetic fields generated by the power lines were calculated by means of a computer program taking distance, line configuration, and load into account. For childhood leukemia and with cut off points at 0.1 and 0.2 {mu}T, the relative risk (RR) increased over the two exposure levels and was estimated at 2.7 (95% c.l.: 1.0-6,3) for 0.2 {mu}T and over. The test for trend gave a p-value of 0.02. When the upper cut off point was shifted to 0.3 {mu}T the RR was instead 3.8 (1.4-9.3) and the corresponding trend test gave a p-value of 0.005. In adults and for magnetic fields of 0.2 {mu}T and over, the RR for acute myeloid (AML) and chronic myeloid leukemia (CML) were estimated at 1.7 (0.8-3.5) and 1.7 (0.7-3.8), respectively. This result persisted in most analyses. For brain tumours no association was seen. The results provide support for the hypothesis that exposure to magnetic fields increase the risk of cancer. This is most evident in childhood leukemia. What aspect of the fields that might be involved remains unclear. (6 figs., 82 tabs., 16 refs.).}
place = {Sweden}
year = {1992}
month = {Dec}
}