Re: Article: Lung cancer screening raises lung cancer risk

[Keith Welch <welch@jlab.org>]

Is this really right?  Are the bomb survivor statistics correct?  How does the cancer risk in the atomic bomb cohort reconcile with the HPS position paper on "radiation risk in perspective" which states that quantitative risk estimates should not be used below 10 rem?  (coincidentally, it seems that position paper is no longer on the HPS website.  Is it under revision?)



"For example, 10 low-dose CT lung screening

examinations would produce lung doses in the range of

25 to 90 mGy," he wrote. "Among approximately 30,000

individuals in the cancer incidence cohort of atomic

bomb survivors who received doses between 5 and 100

mSv (mean dose, 29 mSv), there was a statistically

significant increase in cancer risk (77 excess

cancers, p = 0.05) compared to that in the control

population."





Keith Welch



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