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Keep Healthy with Pollution Computer and Cellphone
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19.02.2006
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Zamir P. Shalita Ph.D.
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Hits: 562
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Symptoms experienced by Users of Digital Cellular Phones: a Study of a French Engineering School
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19.02.2006
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Roger Santini, Marius Seigne, Stephanie Bouffet/ Elsa Defrasne and Mathieu Sage
Laboratoire de Biochimie-Pharmacologie, Institut National des Sciences
Appliquees, 20, Avenue Albert Einstein, 69621 Villeurbanne Cedex, France
Laurence Bonhomme-Faivre
Service de Pharmacie et Pharmacologie, Hopital Paul Brousse, 94804
Villejuif Cedex, France
ABSTRACT
A survey study, using a questionnaire, was conducted in 161 students and workers in a French engineering school on symptoms experienced during use of digital cellular phones. A significant increase in concentration difficulties (p< .05) was reported by users of 1800- MHz (DCS) cellular phones compared to users of 900-MHz (GSM) cellular phones. In users of cellular phones, women significantly (p<.05) complained more often of sleep disturbance than men. The use of both cellular phones and VDT significantly (p<.05) increased concentration difficulties. Digital cellular phone users also significantly (p < .05) more often complained of discomfort, warmth, and pricking of the ear during phone conversations as a function of calling duration per day and number of calls per day.
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Hits: 494
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Study of the Health of People living in the Vicinity of Mobile Phone Base Station
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19.02.2006
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Hits: 497
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Arguments of applying the Precautionary Principle to counter Effects of Mobile Phone Base Stations
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19.02.2006
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ARGUMENTS IN FAVOR OF APPLYING THE PRECAUTIONARY PRINCIPLE TO COUNTER THE EFFECTS OF MOBILE PHONE BASE STATIONS
PARLIAMENTARY OFFICE FOR EVALUATION OF SCIENTIFIC AND TECHNOLOGICAL ALTERNATIVES
Hearing of 6 March 2002 at the request of Senators Jean-Louis LORRAIN and Daniel RAOUL By
Roger SANTINI
Doctor of Science
Lecturer
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Hits: 1088
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A Population-Based Prospective Cohort Study of Personal Exposure to Magnetic Fields during Pregnancy
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19.02.2006
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De-Kun Li, Roxana Odouli, Soora Wi, Teresa Janevic, Ira Golditch, T. Dan Bracken, Russell Senior, Richard Rankin, and Richard Iriye
Abstract:
To study the effect of magnetic fields on the risk of miscarriage, we conducted a population-based prospective cohort study among pregnant women within a large health maintenance organization. All women with a positive pregnancy test at less than 10 weeks of gestation and residing in the San Francisco area were contacted for participation in the study.
We conducted in-person interviews to obtain information on risk factors for miscarriage and other potential confounders. All participants were also asked to wear a magnetic fieldmeasuring meter for 24 hours and to keep a diary of their activities. Pregnancy outcomes were obtained for all participants by searching the health maintenance organization’s databases, reviewing medical charts, and telephone follow-up. We used the Cox proportional hazard model for examining the magnetic field-miscarriage association. A total of 969 subjects were included in the final analyses. Although we did not observe an association between miscarriage risk and the average magnetic field level, miscarriage risk increased with an increasing level of maximum magnetic field exposure with a threshold around 16 milligauss (mG). The rate ratio (RR) associated with magnetic field exposure 16 mG (vs 16 mG) was 1.8 [95% confidence interval (CI) 1.2–2.7]. The risk remained elevated for levels (in tertiles) of maximum magnetic field exposure 16 mG. The association was stronger for early miscarriages ( 10 weeks of gestation) (RR 2.2, 95% CI 1.2– 4.0) and among “susceptible” women with multiple prior fetal losses or subfertility (RR 3.1, 95% CI 1.3–7.7). After excluding women who indicated that their daily activity pattern during the measurements did not represent their typical daily activity during pregnancy, the association was strengthened; RR 2.9 (95% CI 1.6 –5.3) for maximum magnetic field exposure 16 mG, RR 5.7 (95% CI 2.1–15.7) for early miscarriage, and RR 4.0 (95% CI 1.4 –11.5) among the susceptible women. Our findings provide strong prospective evidence that prenatal maximum magnetic field exposure above a certain level (possibly around 16 mG) may be associated with miscarriage risk. This observed association is unlikely to be due to uncontrolled biases or unmeasured confounders. (EPIDEMIOLOGY 2002;13:9–20)
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Hits: 989
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