18
Apr
2006

Subjective symptoms, sleeping problems, and cognitive performance in subjects living near mobile phone base stations

Effects that occur independently of the fear of the subjects about the bases station affecting their health: headaches, cold hands or feet and difficulties in concentrating, for example.

http://oem.bmjjournals.com/cgi/content/abstract/63/5/307

Iris Atzmon


Occupational and Environmental Medicine 2006;63:307-313;
doi:10.1136/oem.2005.020784

© 2006 by BMJ Publishing Group Ltd

This Article Full Text (PDF)
http://www.buergerwelle.de/pdf/base_stations_health_utter_oem_2006.pdf

ORIGINAL ARTICLE

Subjective symptoms, sleeping problems, and cognitive performance in subjects living near mobile phone base stations

H-P Hutter, H Moshammer, P Wallner and M Kundi

Institute of Environmental Health, Medical University of Vienna, Austria

Correspondence to: Dr H-P Hutter Institute of Environmental Health, Medical University of Vienna, Kinderspitalgasse 15, A-1095 Vienna, Austria; hans-peter.hutter{at}univie.ac.at

Background: The erection of mobile telephone base stations in inhabited areas has raised concerns about possible health effects caused by emitted microwaves.

Methods: In a cross-sectional study of randomly selected inhabitants living in urban and rural areas for more than one year near to 10 selected base stations, 365 subjects were investigated. Several cognitive tests were performed, and wellbeing and sleep quality were assessed. Field strength of high-frequency electromagnetic fields (HF-EMF) was measured in the bedrooms of 336 households.

Results: Total HF-EMF and exposure related to mobile telecommunication were far below recommended levels (max. 4.1 mW/m2). Distance from antennae was 24–600 m in the rural area and 20–250 m in the urban area. Average power density was slightly higher in the rural area (0.05 mW/m2) than in the urban area (0.02 mW/m2). Despite the influence of confounding variables, including fear of adverse effects from exposure to HF-EMF from the base station, there was a significant relation of some symptoms to measured power density; this was highest for headaches. Perceptual speed increased, while accuracy decreased insignificantly with increasing exposure levels. There was no significant effect on sleep quality.

Conclusion: Despite very low exposure to HF-EMF, effects on wellbeing and performance cannot be ruled out, as shown by recently obtained experimental results; however, mechanisms of action at these low levels are unknown.

Abbreviations: ANCOVA, analysis of covariance; BCCH, broadcast channel; CI, confidence interval; GSM, global system for mobile telecommunication; HF-EMF, high-frequency electromagnetic fields; MHz, megahertz; POR, prevalence odds ratio; SAR, specific (energy) absorption rate; SD, standard deviation; TDMA, time division multiple access; WHO, World Health Organisation

Keywords: base station; cognitive performance; microwaves; mobile telecommunication; sleep quality; subjective symptoms
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