eLetters

65 e-Letters

published between 2007 and 2010

  • Beryllium and Lung cancer: Study design artifacts
    David C. Deubner

    To the editor

    In their recent article (1), Mary Schubauer-Berigan and colleagues elaborate on a prior study (2) in order to examine potential confounding by birth cohort and hire age of the relationship between beryllium exposure and lung cancer, a worthwhile objective. The prior study is a matched nested case-control study that employs incidence density sampling to match controls to cases and uses exposure lag...

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  • Response to Markku Seuri and Jukka Uitti
    Simo Taimela

    We thank Markku Seuri and Jukka Uitti for their interest towards our article [1] and for raising the topics for discussion in OEM (eLetter posted 16 October).

    Concerning the first topic, the intervention in the RCT1 among the High Risk subjects consisted of 1) personal feedback of the health survey results and 2) an invitation to a consultation at their local occupational health service (OHS). The main purpose...

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  • Justice and fairness in the workplace
    Laura Punnett

    The work by Kivimäki et al (64:659-665) is part of an important tradition that aims to expand understanding of occupational psychosocial stressors to include issues of justice and fairness in the workplace, complementing the two most well-known models, demand-control and effort- reward. We applaud this work, while we also agree with the commentary by Renée Bourbonnais (64:640-641) that the existing conceptual frameworks...

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  • Crocidolite fibre clearance
    Nicholas de Klerk
    Cherrie et al, in response to McDonald et al's recent gas mask worker analysis [1], have suggested using a crocidolite fibre clearance half-life of 20 years. In their analyses, McDonald et al used a half-life of 10 years [1]. The best figure to use might be a half-life of 92 months, as estimated previously [2]. 1. McDonald JC, Harris JM, Berry G. Sixty years on: the price of assembling military gas masks in 1940. Occup Environ...
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  • Good review but caution advised to readers!
    Owen Moore

    Dear Editor,

    I commend Steenstra et al (2005) for their paper and its succinct systematic review of quality inception cohorts in the area of acute low back pain (ALBP). Many of the 79 items discussed have been long overdue such a review and I was quite surprised to learn that many traditional practice patterns (e.g. asking ALBP patients about smoking status, previous LBP history) might need some reconsideration...

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  • What was the effective interventio?
    Markku Seuri

    Taimela et al published the results of two RCTs 1. Trials are validly conducted, but two points need further consideration. Firstly, one should ask what was the effective intervention. Occupational health carried out three actions. Firstly they identified the high-risk employees, secondly they sent a letter of the intervention program only to those in the intervention group and thirdly consultations were given to those wil...

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  • Chrysotile exposure and lung cancer
    Stuart A Levy

    September 17, 2007

    Editor Occupational and Environmental Medicine

    Hein et al reported an excess of lung cancer in a cohort of South Carolina textile workers attributed to chrysotile asbestos exposure(1). Information on smoking, the predominant risk factor for lung cancer, was not known. Table 2 in the publication shows an excess mortality from ischemic heart disease (SMR 1.39) and chronic obstructive...

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  • The IARC Monographs and the new Preamble
    Vincent James Cogliano

    I would like to clarify two points from the response by Drs Crosignani and Gennaro[1] on the IARC Monographs as a resource for precaution and prevention.[2] First, the new formaldehyde Monograph[3] strengthened the evaluation of formaldehyde, and it would be a mistake to ignore formaldehyde as a workplace or environmental health hazard. The Monograph raised the classification from "probably carcinogenic" (Group 2A) to...

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  • The IARC Monographs: a resource for precaution and prevention? The new Preamble does not fit.
    paolo crosignani

    In the last issue of OEM, Cogliano (1) presented the IARC Monographs as a tool both for precaution and prevention. If true in the past, the new Preamble severely impairs this potential.

    In fact, a new task for the working group has been introduced: “the target organ(s) or tissue(s) in which an increase in cancer was observed is identified” and “A statement that there is sufficient evidence is followed by a separ...

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  • Ischaemic heart disease among chrysotile textile workers
    Bengt Sjögren

    Letter to the editor regarding Follow-up study of chrysotile textile workers: cohort mortality and exposure-response by Hein MJ, Stayner LT, Lehman E, Dement JM in Occup Environ Med 2007; 64: 616-625.

    Bengt Sjögren MD, PhD, Work Environment Toxicology, Institute of Environmental Medicine, Karolinska Institutet, SE-177 77 Stockholm, Sweden, Phone +46 8 524 822 29, Fax +46 8 31 41 24, E-mail bengt.sjogren@ki...

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