The study compared lung cancer risk in an occupational cohort with the relevant normal population in the USA. Workers were exposed to silica in sand dust. The potential effects of radon exposure were reduced to a minimum.
Evidence from:
K.Steenland et al. American Journal of Epidemiology. April (2001). Vol. 153 #7 p 695.
The report provides exposure estimates and the strength of association between exposure and lung cancer. Dose response trends were looked for. Given the number of people exposed to silica dust at higher than the recommended level it would be possible to estimate the attributable case load.
The Radar report is available to subscribers: