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American Journal of Epidemiology Vol. 152, No. 6 : 593-594
Copyright © 2000 by The Johns Hopkins University School of Hygiene and Public Health

LETTERS TO THE EDITOR

RE: "OFFICE EQUIPMENT AND SUPPLIES: A MODERN OCCUPATIONAL HEALTH CONCERN?"

Carol Gevecker Graves and Robert G. Tardiff

The Sapphire Group 3 Bethesda Metro Center, Suite 700 Bethesda, MD 20814

In their article on exposure to self-copying paper, Jaakkola and Jaakkola (1Go) present a variation on the theme of circular epidemiology (2Go). They use data designed for another purpose to investigate an unproven hypothesis, and their findings do not add to the body of knowledge because they fail to control for the most relevant variable.

We have recently become familiar with evidence pertaining to the potential health impact of carbonless copy paper, one form of self-copying paper. Case reports and biased questionnaire studies abound, but almost no studies have included matched controls and verified, quantified exposures. We are convinced that carbonless copy paper does not cause irritation or any other adverse health impact.

Following early investigations in which participants were asked leading questions, studies of "sick building syndrome" came into vogue . . . [Full Text of this Article]

REFERENCES

Maritta S. Jaakkola and Jouni J. K. Jaakkola

Finnish Institute of Occupational Helath Topeliuksenkatu 41 aA FIN-00250 Helsinki, Finland
Schools of Hygiene and Public Health Johns Hopkins University Johns Hopkins University Baltimore, MD 21205


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C. Gevecker Graves, R. G. Tardiff, M. S. Jaakkola, and J. J. K. Jaakkola
RE: "OFFICE EQUIPMENT AND SUPPLIES: A MODERN OCCUPATIONAL HEALTH CONCERN?"
Am. J. Epidemiol., September 15, 2000; 152(6): 593 - 594.
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