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Lewis H. Kuller, MD, DrPH
University of Pittsburgh (Pa) Graduate School of Public Health

JAMA. 1989;262(24):3403.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor.—

The article entitled "Lung Cancer Mortality Among Non-smoking Uranium Miners Exposed to Radon Daughters"¹ is an important contribution. The conclusions, however, are not consistent with the results presented in the article. The authors list nine standard categories of exposure. Ten of 14 lung cancer deaths would be in category 7, which is 840 or more working level months (WLM), and all are above category 5, which is 360 or more WLM. The authors then collapse the categories to two and conclude a 12-fold risk at a median of 296 WLM and a mean of 720 WLM. There were no lung cancers below the median of 296 WLM and only 3 below the mean of 720 WLM. The lack of power at lower doses is clearly a problem, but does not justify an arbitrary division of their population so that the reported level of risk is much . . . [Full Text PDF of this Article]

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