80 e-Letters

published between 2003 and 2006

  • Underreporting and late reporting of work related asthma
    Hakon L Leira

    Dear Editor,

    In their study from Massachusetts, USA, on characteristics of work related asthma, Breton CV et al. found that individuals with work related current asthma were 4.8 times as likely to visit the emergency room at least once, and 2.5 times as likely to visit the doctor at least once for worsening asthma compared to individuals with non-work related asthma (1). Work related status of asthma was determi...

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  • Interphone study: results first then methods.
    Dr Bruce Hocking

    Dear Editor,

    It is disturbing that the Interphone study group first publishes several papers purportedly finding negative results but only now publishes a validation study showing that the methods used to measure exposure are so deeply flawed that it was unlikely the previously published studies would detect an increase in risk of brain tumour in mobile phone users(1).

    In the validation study of 672 vo...

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  • Re: No provable effects
    Hans-Peter Hutter

    Dear Editor,

    We thank Wolf and Vana for their comments on our article "Subjective symptoms, sleeping problems and cognitive performance in subjects living near mobile phone base-stations" (OEM 63:307-313). We appreciate their regret that due to methodological problems results may not be as clear-cut as they desire.

    The study of potential effects of emissions from mobile phone base- stations is indeed fr...

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  • No provable effects
    Christian W. Wolf

    Dear Editor,

    In their publication, the authors postulate that effects upon health and performance cannot be ruled out despite a low exposure to high-frequency electro-magnetic fields, effects far below the WHO threshold values. Unfortunately, this paper has substantial methodological problems.

    1. There may well have been a clustering in the choice of test- subjects’ addresses in relation to the location...

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  • Formulating legislation
    Bruce H. Jennings

    Dear Authors,

    Thank you for the great editorial. I would like to suggest that given your experience, especially Dr. Hoppin, it would be especially helpful to formulate more specific proposals for introducing at the state level, including California. The University of California, as an example, has been largely unresponsive to requests for disclosures regarding potential conflict of interest situations for facu...

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  • Is health in office buildings related only to psychosocial factors?
    Mark J. Mendell

    Dear Editor,

    It has been clear for years, based on much published research, that symptoms in office workers are associated with a number of environmental factors in office buildings and also, independently, with psychosocial stressors at work. So we were surprised to see a recent article by Marmot et al. (1) report that, in offices in the Whitehall II Study, “raised symptom levels appear to be largely due to a...

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  • Working Permanent Night Shifts and Injury Risk (Underpowered Result?)
    David A. Lombardi

    The current research paper by Fransen et al. (2006) contributes interesting and useful data to the emerging research area examining the potential risk of extended working hours, unusual work patterns, and the occurrence of a work related injury.

    I am concerned, however, that readers may conclude that working permanent night shifts carries no increased risk of work injury, despite contrary evidence as they cited...

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  • Validation of hospital discharge data
    Gary M. Liss

    Dear Editor:

    We read with interest the article by Alamgir et al (1) regarding the use of hospital discharge records in occupational health in the April issue of Occupational and Environmental Medicine. The paper adds to the evidence that these records represent an alternative and independent source of information for serious work-related injuries. In their introduction, the authors also make the point that, to...

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  • Only by controlled exposure to welding fumes can Parkinson's disease be avoided
    Robert Eli

    Dear Editor,

    In the article, "Parkinson’s disease and other basal ganglia or movement disorders in a large nationwide cohort of Swedish welders,"1 the authors conclude:

    "This nationwide record linkage study offers no support for a relation between welding and Parkinson’s disease or other specific basal ganglia and movement disorders."

    They argue that there is a need for their study, a 29 year stu...

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  • Pneumoconiosis after cericite inhalation
    M Greenberg

    Dear Editor,

    This article recalls a controversy of the early 1930s, when the authority of no less a genius than Professor JS Haldane was challenged on behalf of South Wales coalminers by a mining mineralogist W. R. Jones, who as a consequence was to acquire the soubriquet "Sericite". [1]

    Their disease was considered by Haldane not to be attributable to the dust to which they were exposed, as its level of c...

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